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Colorado landlord-tenant law

Checked against the Colorado statutes on September 24, 2026 Statutes current through: C.R.S. 2026, including 2026 regular session laws effective through August 12, 2026; supplemental selected disability housing provisions, bed bug disclosure and official Denver/Boulder guidance reviewed October 13, 2026; wider state review not reset; selected rental-application provisions reviewed October 15, 2026 without resetting the wider review General information, not legal advice

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Colorado in brief

Colorado caps a security deposit at two months' rent and a pet deposit at $300, and the deposit comes back within 30 days after the lease ends or the tenant leaves, or up to 60 if the lease says so. A late fee needs a lease clause, may start only when rent is seven days late, and may not exceed the greater of $50 or 5 percent of the past-due rent. Rent may rise only once in any twelve months. An eviction for unpaid rent starts with a ten-day written demand, and after a tenant's first year most tenancies can end only for a cause the law lists, with 90 days' notice for a no-fault reason. Start habitability repairs within 24 or 72 hours of written notice, and give the signed radon disclosure before the lease is signed.

Key numbers

Security deposit limit
2 months' rent
two monthly rent payments
C.R.S. § 38-12-102.5(1)
Deposit refund deadline
30 days
or up to 60 if the lease says so
C.R.S. § 38-12-103(1)(a)
Pet deposit limit
$300
and it must be refundable
C.R.S. § 38-12-106(1)
Late fee allowed after
7 days
calendar days late
C.R.S. § 38-12-105(1)(a)
Late fee limit
$50 or 5%
whichever is greater, of the past-due rent payment
C.R.S. § 38-12-105(1)(b)
Notice for unpaid rent
10 days
to pay or give up possession
C.R.S. § 13-40-104(1)(d)
Ending a month-to-month tenancy
21 days
for a tenancy of one month to under six months; 28 or 91 days for longer ones
C.R.S. § 13-40-107(2)
Rent increase notice
60 days
where there is no written agreement; once per 12 months
C.R.S. § 38-12-701(2)(a)C.R.S. § 38-12-702(1)
Returned check charge
Up to $20
a posted or contractual charge, or actual damages instead
C.R.S. § 13-21-109(1)(b)
Entry notice
None set
except 24 hours for repairs and 48 for bed bugs
C.R.S. § 38-12-503(6)C.R.S. § 38-12-1004(1)

Before you sign

Application and screening fees

An application fee must be spent entirely on your cost of processing the application, based either on actual cost or on your average cost per applicant. Charge every applicant for the same unit, or for any unit you offer at the same time, the same fee. Give each applicant a receipt and either a list of the expenses the fee will cover or an itemization of the actual expenses, and make a good-faith effort to refund any unused part within 20 calendar days after processing.

C.R.S. § 38-12-903

More detail (10)
  • You must accept a portable tenant screening report from an applicant unless you take only one application fee at a time for the unit and refund it within 20 calendar days after either side declines the lease. You may require that the report is no more than 30 days old, costs you nothing to use, and comes with the applicant's statement that nothing material has changed. If an applicant provides one, you may not charge an application fee or a fee to use the report. C.R.S. § 38-12-903(2)(b) C.R.S. § 38-12-904(1.5)
  • Before any screening you expect to charge for, tell applicants in substantially the statute's words about the portable report and the fees it rules out, for example in the listing or on the application in at least 12-point bold type. C.R.S. § 38-12-904(1.5)(d), (e)
  • Do not consider rental or credit history older than seven years, any arrest record, or a conviction more than five years old, except convictions for the offenses the statute lists. C.R.S. § 38-12-904(1)(a), (b)
  • You may ask about income only to confirm it is at least twice the annual rent the applicant will pay, and you may not require more. For an applicant using a housing subsidy, you may not consider a credit score, an adverse credit event or the lack of a credit score unless federal law requires it. C.R.S. § 38-12-904(1)(c), (d)
  • If you deny an application, make a good-faith effort to give written reasons within 20 calendar days, plus a copy of any consumer report you obtained and notice of the right to dispute it. Give a paper denial notice if the applicant requests one. If a proprietary system prevents directly citing the screening criteria, provide its report with only the proprietary information redacted; the system does not eliminate the notice duty. C.R.S. § 38-12-904(2)
  • From January 1, 2027, every rental application must tell applicants what screening information you will try to access, generally describe the factors you will evaluate, and state whether you use a third-party screening service, naming it if you do. The new disclosure rule does not require you to create or reveal fixed disqualifying criteria. C.R.S. § 38-12-904(1.7) HB26-1196, sections 3 and 4
  • A violation can cost $2,500 plus costs and attorney fees. The applicant must give seven calendar days' notice before suing, and curing within seven days limits the penalty to $50. C.R.S. § 38-12-905
  • You may not ask about or collect information on an applicant's immigration or citizenship status, except as the law allows, such as asking every applicant for the same financial documents. C.R.S. § 38-12-1203(1) C.R.S. § 38-12-1204(1)(b)
  • Check the statutory report definition before applying the portable-report rules. It is a consumer report requested by the prospective tenant, containing reporting-agency information and its current-through date, identity and contact information, employment and income verification, last-known address, and the required compliant rental, credit and conviction checks for the reported prior-residence jurisdictions. A report for an applicant using a housing subsidy need not include credit history, a credit score or an adverse credit event. A self-written application is not automatically a portable screening report. C.R.S. 38-12-902(2.5)
  • Use the current delivery rules rather than an older checklist. Effective January 1, 2026, the Legislature repealed the subsection that allowed requiring a portable report to be made directly available by the reporting agency or through a third-party website. The current statute still allows the listed age, no-access-cost and material-change requirements. Confirm the report definition and applicable exception separately; a vendor's preferred ordering or delivery process does not establish compliance. C.R.S. 38-12-904(1.5)(b) and history

Fair housing

Colorado bars refusing to rent, setting different terms, asking about or advertising a preference based on disability, race, creed, color, sex, sexual orientation, gender identity, gender expression, marital status, familial status, veteran or military status, religion, national origin or ancestry. It also bars refusing to rent or setting different terms because of a person's source of income, including housing assistance.

C.R.S. § 24-34-502(1)

More detail (7)
  • The source of income rules do not apply to a landlord with three or fewer rental units, and a landlord with five or fewer single-family rentals and no more than five units is not required to accept federal housing choice vouchers for those homes. C.R.S. § 24-34-502(1.5)(a), (1.7)
  • You may check credit if you check every applicant's credit. C.R.S. § 24-34-502(1.5)(b)
  • The mere presence of an assistance animal is not a direct threat and is not presumed to cause substantial damage; documented conduct of the animal may be considered. C.R.S. § 24-34-502(1)(a)(III)
  • Do not ask applicants about, or consider, their status as a victim-survivor of domestic violence, domestic abuse, stalking or unlawful sexual behavior. C.R.S. § 38-12-402(5)
  • Do not ask about, disclose or act on a tenant's immigration or citizenship status except as the law allows. C.R.S. § 38-12-1203
  • Colorado's disability housing law prohibits refusing necessary reasonable modifications of an existing home or refusing reasonable accommodations that give a person with a disability an equal opportunity to use and enjoy housing, including public and common-use spaces. C.R.S. § 24-34-502.2(2)(a), (b) C.R.S. § 24-34-501(3.5)
  • Permitting an assistance animal is presumed reasonable after the housing provider has an opportunity to engage in an interactive accommodation process. A complete prohibition is presumed discriminatory. The law permits a good-faith interactive process and reasonable documentation of disability or related need unless that disability or need is obvious. C.R.S. § 24-34-502.2(2)(b)(II)
In the Rentari Colorado lease

The Colorado lease includes the source of income statement Colorado requires, with the small-landlord exemption.

Required disclosures and lease language

Before the lease is signed, give the tenant a signed radon disclosure. The written lease must name the landlord or authorized agent with an address, carry the source of income statement unless you are exempt, and, since January 1, 2025, include two statements in at least 12-point bold type: that tenants are entitled to safe and healthy housing and may not be retaliated against for reporting unsafe conditions or requesting repairs, and, in English and Spanish, where tenants can mail or deliver and email or submit notice of an uninhabitable condition.

C.R.S. § 38-12-803(2) C.R.S. § 38-12-801(2), (2.5) C.R.S. § 38-12-505(3)(c), (d)

More detail (10)
  • The radon disclosure includes the statutory warning in bold type, any radon test results, records, mitigation and mitigation system information you know of, and the state health department's current radon brochure; the tenant signs to acknowledge it. C.R.S. § 38-12-803(2)
  • The source of income statement says that C.R.S. 24-34-502(1) prohibits source of income discrimination and requires a non-exempt landlord to accept any lawful, verifiable source of money. Landlords with five or fewer single-family rentals and no more than five units in total are exempt. C.R.S. § 38-12-801(2.5)
  • If you offer an online tenant portal, post the English and Spanish notice-address statement there too. C.R.S. § 38-12-505(3)(e)
  • Give the tenant a copy of the signed lease no later than the seventh day after the tenant signs, electronically unless the tenant asks for paper. C.R.S. § 38-12-801(1)
  • Disclose any late fee in the rental agreement, and the method of allocating utilities if you bill by ratio. C.R.S. § 38-12-105(1)(c) C.R.S. § 6-1-737(4.5)(a)(IV)
  • Advertised and offered prices must show the total price as a single number, and you must not misrepresent whether a charge is refundable, what it is for or who receives it. C.R.S. § 6-1-737(2), (3)
  • A written lease may not include a one-way attorney fee clause, a waiver of a jury trial (except for the possession hearing), class claims, good faith and fair dealing, quiet enjoyment or mandatory mediation, a penalty for an eviction notice, or markups on third-party services beyond 2 percent or $10 a month. C.R.S. § 38-12-801(3)
  • Some of these limits do not apply to an owner-occupied duplex, triplex or accessory dwelling unit, or to mobile home lots. C.R.S. § 38-12-801(4), (8)
  • Do not offer a home for rent if you know or reasonably suspect it has bed bugs. On a prospective tenant's request, disclose any known bed bugs in the home during the previous eight months. On a tenant's or prospective tenant's request, also disclose the last date the home was inspected and found free of bed bugs. The eight-month lookback is for bed bugs, not radon. C.R.S. § 38-12-1005
  • For Denver property, the city directs owners and operators to provide its Tenant Rights and Resources document when the written lease is executed and whenever a rent demand is made. Use the document currently linked by the city and keep proof of delivery. This is a local notice requirement; the full city code and linked notice contents were not reviewed here. Denver residential rental property guidance: tenant notice

Owner and manager identity

A written lease must state the name and address of the landlord or the landlord's authorized agent. When the landlord or agent changes, the new one must, within one business day, notify each tenant in writing or electronically, or post the new identity in a conspicuous place on the property.

C.R.S. § 38-12-801(2)

More detail (1)
In the Rentari Colorado lease

The lease names the landlord with the landlord's address, and any authorized agent acting for the landlord.

Deposits, rent and fees

Security deposit limit

A landlord may not require a security deposit larger than two monthly rent payments under the rental agreement. A security deposit is any advance or deposit of money, whatever it is called, whose main purpose is to secure the tenant's performance of the rental agreement.

C.R.S. § 38-12-102.5(1) C.R.S. § 38-12-102(6)

More detail (3)
  • From January 1, 2027, the two-month cap does not apply to a post-closing occupancy agreement under a purchase contract in which the landlord bought the home from the tenant. C.R.S. § 38-12-102.5(2)
  • A separate security deposit for a pet may not be more than $300, and it must be refundable. C.R.S. § 38-12-106(1)
  • A lease term that waives or changes any part of the deposit law that protects the tenant is void. C.R.S. § 38-12-103(7)(a)
In the Rentari Colorado lease

The Rentari Colorado lease states the two-month cap, and the lease builder will not accept a security deposit above two months' rent or a pet deposit above $300.

Returning the deposit

Return the full deposit within 30 days after the lease ends or the tenant surrenders the home, whichever happens last. The lease may set a longer period, but no more than 60 days. If you keep any part, give the tenant a written statement listing the exact reasons, together with the balance and any documentation the law requires. You may keep reasonable amounts only for unpaid rent, unpaid utilities, other lawful charges listed in the lease, and repairs of damage beyond normal wear and tear that did not exist before the tenancy.

C.R.S. § 38-12-103(1)

More detail (11)
  • Sending the statement, payment and documentation to the tenant's last known address, or to an email address you actually know of, counts as delivery. The refund may be mailed, or sent by secure electronic transfer with the tenant's consent. C.R.S. § 38-12-103(1)(a) C.R.S. § 38-12-103(10)
  • On either side's request, where reasonable and practicable, conduct an in-person or live-video walk-through to identify in writing damage beyond normal wear and tear that did not preexist the tenancy. At the tenant's request, provide it at a mutually convenient time before lease termination or surrender, after an opportunity to remove furniture. Subsection (12) excludes occupancy of a mobile home in a mobile home park from this walk-through provision. C.R.S. § 38-12-103(1.5) C.R.S. § 38-12-103(12)
  • For lease terminations or surrenders on or after January 1, 2026, subsection (8) requires relevant documentation in the landlord's possession or control when the landlord provides the deduction statement within 14 days after the tenant's written request. This includes supporting photos, inspection records, receipts, invoices or estimates. Check this precise trigger alongside the separate 30-day return deadline and any permitted lease extension. C.R.S. § 38-12-103(8)
  • You may not charge for replacing carpet throughout the home, or repainting the whole interior, unless the damage is substantial (and for carpet, irreparable), beyond normal wear and tear and not preexisting. Carpet not replaced with new carpet in the ten years before move-out cannot be treated as substantially and irreparably damaged. Supported damage to a portion is addressed separately; a localized issue does not establish a whole-home charge. Subsection (12) excludes occupancy of a mobile home in a mobile home park from subsection (11). C.R.S. § 38-12-103(11) C.R.S. § 38-12-103(12)
  • Missing a requirement, or wrongfully keeping any part, forfeits the right to keep any of the deposit. A wrongful retention can cost three times the amount wrongfully withheld plus attorney fees and costs, but only after the tenant gives at least seven days' notice of the demand and intent to sue and you do not return the money within those seven days. You bear the burden of proving the withholding was not wrongful. C.R.S. § 38-12-103(2) C.R.S. § 38-12-103(2.5) C.R.S. § 38-12-103(3)
  • Keeping 125 percent or more of your actual damages is presumed to unreasonably exceed them, which is one of the ways a retention becomes bad faith. C.R.S. § 38-12-103(3.5)
  • If a mailed refund comes back, hold it for at least one year and pay it within 15 calendar days after the tenant asks. C.R.S. § 38-12-103(9)
  • When your interest in the property ends, whoever holds the deposit has 60 days to transfer it to the successor and tell the tenant by mail, or to return it to the tenant. C.R.S. § 38-12-103(4)
  • A lease term charging the tenant for repairs or cleaning due to normal wear and tear, or for a preexisting condition, is void. C.R.S. § 38-12-103(7)(b)
  • The 125-percent presumption is not a permitted markup: a smaller excess can still be unreasonable. Under subsection (3.5)(d), a landlord who acts in good faith and meets every other requirement, but is found in a civil action to have reasonably retained more than actual damages, is liable only for that excess and court costs. Preserve the actual-loss evidence; a dispute alone does not establish which remedy applies. C.R.S. § 38-12-103(3.5)(b)-(d)
  • Review the starting condition and actual use before charging for cleaning or smoking damage. Normal wear includes deterioration, damage or uncleanliness from intended or reasonably typical use without negligence, carelessness, accident or abuse; it excludes uncleanliness leaving the unit substantially less clean than at move-in. A routine turnover or professional-cleaning invoice alone does not establish a permitted deduction. C.R.S. § 38-12-102(4); 38-12-103(1), (7)(b)

Deposit account and interest

Not set by statute

Colorado's general security deposit law does not require a separate account for deposits or interest on them. Its rules cover the amount, the return and the transfer of deposits when a property changes hands.

C.R.S. § 38-12-101 to 38-12-106

More detail (3)
  • When your interest in the property ends by sale or otherwise, the deposit goes to your successor within 60 days with notice to the tenant, or back to the tenant. Once that is done, the person who held it is released, and the successor takes on your duties for it. C.R.S. § 38-12-103(4) C.R.S. § 38-12-103(5) C.R.S. § 38-12-103(6)
  • Mobile home park lots follow a different rule: the deposit is capped at one month's rent, stays the home owner's property and goes into a separate trust account. C.R.S. § 38-12-207(1), (3)
  • A city can add deposit-interest requirements. Boulder requires landlords to return interest on tenants' security deposits and published a 2.08 percent rate for 2026, effective January 1. Check the city's applicable rates and calculation guidance for the tenancy before calculating the refund; this rate is not a statewide requirement. City of Boulder: 2026 security deposit interest

Move-in condition

Not set by statute

No section of Colorado's landlord and tenant article requires a move-in inspection or checklist. The home must be fit to live in before you lease it, and you cannot later deduct from the deposit for damage that existed before the tenancy, so a dated record of the condition at move-in protects you.

C.R.S. § 38-12-101 to 38-12-1502

More detail (2)
  • Before leasing, make sure the home is habitable and free of the conditions that make a home uninhabitable; leasing it otherwise breaches the warranty of habitability. C.R.S. § 38-12-505(3)(a), (b)
  • Deductions may not cover normal wear and tear or any damage or defective condition that preexisted the tenancy. C.R.S. § 38-12-103(1)(a)
In the Rentari Colorado lease

The lease says the tenant accepts the home as documented in any move-in condition report and must report preexisting damage in writing within seven days of move-in.

Rent payments and late fees

You may charge a late fee only if the rental agreement discloses it and the rent is at least seven calendar days late. The fee may not exceed the greater of $50 or 5 percent of the past-due rent payment. You may not evict or end a tenancy because a tenant has not paid late fees.

C.R.S. § 38-12-105(1)

More detail (6)
  • No late fee may be charged unless you gave the tenant written notice of it within 180 days after the rent was due. C.R.S. § 38-12-105(1)(j)
  • Charge one late fee per late payment, unless all fees for that payment together stay within the cap. Never charge interest on a late fee, take a late fee out of a rent payment, or charge a late fee on rent a subsidy provider owes. C.R.S. § 38-12-105(1)(f) to (i)
  • A late fee is not rent, and the lease may not call it rent. The same goes for any other charge in the lease besides the set monthly payment for occupancy. C.R.S. § 38-12-105(7) C.R.S. § 38-12-801(3)(a)(V)
  • A violation costs $50 per violation. You have seven days to cure after written or electronic notice; if you do not, the tenant may sue for damages, a penalty of $150 to $1,000 per violation, costs and attorney fees. C.R.S. § 38-12-105(3) to (5)
  • Give a receipt at once for rent paid in person in cash or by money order. For other payments, give a receipt within seven days if the tenant asks, unless you already have a procedure that records the payment. C.R.S. § 38-12-802
  • You may not charge a fee for processing rent or other payments unless the tenant has reasonable access to a way to pay at no cost, and you may not charge a fee for the late payment of an amount that is not rent. C.R.S. § 6-1-737(4)(d), (e)
In the Rentari Colorado lease

The Colorado lease states the ceiling of $50 or 5 percent, the seven-day wait and the other late fee limits, and the lease builder blocks a late fee above the ceiling or a grace period shorter than seven days.

Returned payment fee

When a check or similar order used to pay you is not paid on presentment, you may recover its face amount plus, at your option, either your actual damages or a reasonable posted or contractual charge of no more than $20. If you give written notice of the nonpayment and the tenant does not pay the full amount due within 15 days, a court may award three times the face amount, at least $100.

C.R.S. § 13-21-109(1)

More detail (4)
  • The notice must be in writing, delivered in person, by certified mail, or by regular mail with an affidavit of mailing, and must list the check's details, an itemized total due and the 15-day deadline. C.R.S. § 13-21-109(3), (4)
  • You may not claim the triple amount until a court has entered final judgment for it, and the maker has defenses, such as funds being garnished without notice. C.R.S. § 13-21-109(2)(b), (5)
  • If the check is assigned to a licensed collection agency, collection costs of 20 percent of the face amount, at least $20, may be added. C.R.S. § 13-21-109(1)(b)(II)
  • The section addresses checks, drafts and orders for payment; it does not mention electronic payments. C.R.S. § 13-21-109(1)

Rent increases

You may raise the rent no more than once in any twelve-month period of the tenant's consecutive occupancy, whatever the length or type of tenancy and whether or not there is a written agreement. Where there is no written agreement, a rent increase needs at least 60 days' written notice.

C.R.S. § 38-12-702(1) C.R.S. § 38-12-701(2)(a)

More detail (5)
  • For a tenancy with no written agreement, you may not serve a notice to end the tenancy mainly to raise the rent in a way that avoids the 60-day rule. C.R.S. § 38-12-701(2)(b)
  • Part 7 sets no notice period for an increase when there is a written agreement; the lease terms govern. C.R.S. § 38-12-701 C.R.S. § 38-12-702
  • You may not raise rent in a discriminatory, retaliatory or unconscionable way to get around the for-cause eviction law, and raising rent in response to a protected complaint or repair request is prohibited retaliation. C.R.S. § 38-12-1307 C.R.S. § 38-12-509(1)(b)(I) See Retaliation
  • Counties and cities may not control rent on private residential property. C.R.S. § 38-12-301(1) See Rent control and local rules
  • Before preparing an increase letter, record whether the tenancy has a written agreement, the current rent, the date of the last increase and the proposed start date. Identify the property and tenants, show the old and new rent and the dollar difference, and explain how to ask questions or discuss a renewal. Check the applicable lease terms, notice period and twelve-month limit before delivery. Keep the letter, delivery record and any response together, and update the payment schedule only for the properly established effective date. A disagreement about the proposed rent does not by itself resolve the separate renewal or possession rules. C.R.S. § 38-12-702(1) C.R.S. § 38-12-701(2)(a) C.R.S. § 38-12-1307
In the Rentari Colorado lease

The Colorado lease limits rent increases to once in any twelve months of consecutive occupancy and states the 60-day written notice where there is no written agreement.

During the tenancy

Landlord entry

Not set by statute

No section of Colorado's landlord and tenant article sets a general notice period for entering an occupied home, so put entry terms in the lease. Two situations have their own rules: entry for habitability repairs and entry for bed bugs.

C.R.S. § 38-12-101 to 38-12-1502

More detail (2)
  • To enter for repairs of a habitability condition, give at least 24 hours' written notice with the date, time and estimated length of the visit, unless the condition imminently threatens life, health or safety or is causing ongoing substantial damage. The tenant may reasonably decline the time, and you then propose another. C.R.S. § 38-12-503(6)
  • To inspect for or treat bed bugs, give reasonable written or electronic notice at least 48 hours before entry, unless the lease sets a different minimum or the tenant waives it. The tenant may not unreasonably deny access. C.R.S. § 38-12-1004(1)
In the Rentari Colorado lease

The Colorado lease says Colorado sets no general entry notice period, requires written notice for non-emergency entry as a lease term (24 hours unless you set more), and gives 48 hours' notice before a bed bug inspection or treatment.

Repairs and habitability

Every rental agreement carries a warranty that the home is fit to live in at move-in and will be kept that way. Once you have written notice of a condition that makes the home uninhabitable or materially interferes with the tenant's life, health or safety, you must start fixing it within 24 hours for a life, health or safety condition and within 72 hours for other conditions, keep working until it is fixed, and pay for the repair.

C.R.S. § 38-12-503(1), (2)

More detail (11)
  • Within 24 hours of notice, contact the tenant with your plan and an estimate of when work will start and finish, and tell them about your duty to provide other housing. C.R.S. § 38-12-503(6)(a)
  • For a condition that materially interferes with life, health or safety, provide a comparable unit or hotel room at no cost within 24 hours of the tenant's request, generally within five miles. If the stay runs past 48 hours, the unit or room must have a refrigerator with a freezer and a stove or oven, or you must pay a daily meal allowance at the state employee rate. C.R.S. § 38-12-503(4)
  • Uninhabitable conditions include damp and mold, missing heat, hot water, working plumbing, electricity or waterproofing, pest infestations, broken exterior door locks and window locks, and code violations that threaten life, health or safety. C.R.S. § 38-12-505(1) C.R.S. § 38-12-505(4)
  • For mold tied to dampness, contain it, stop the water source and run a HEPA air filter within 72 hours, then complete remediation and test afterward. C.R.S. § 38-12-503(12)
  • Keep records of notices and repair work for the whole tenancy and three years after, and give the tenant any of them within ten calendar days of a request. C.R.S. § 38-12-503(5)
  • A condition caused by the tenant, household or guests is not a breach, except where it results from domestic violence, domestic abuse, unlawful sexual behavior or stalking you had notice of. C.R.S. § 38-12-503(9)
  • You may not require the tenant to claim on renters insurance for repairs you must pay for, or file on the tenant's policy without written permission. C.R.S. § 38-12-503(13)
  • You may not bar a portable air conditioner or evaporative cooler except for the safety and capacity reasons the statute lists, and any restriction must be disclosed in writing. C.R.S. § 38-12-505(7)
  • When gas-service personnel identify a hazardous gas condition and give written notice to the customer of record, a tenant must immediately notify the landlord or agent in writing. After actual receipt, the landlord has 72 hours, excluding Saturday, Sunday and legal holidays, to have a professional as defined in 38-12-104(3) repair it. If the deadline passes and the home remains hazardous, the tenant may choose to vacate and the lease then ends under the section. C.R.S. § 38-12-104 C.R.S. § 38-12-503(14)
  • For a single-family home with no government subsidy, you and the tenant may agree in good faith, in a separate signed writing with adequate consideration, that a qualified tenant will do specific repairs. C.R.S. § 38-12-506
  • After that gas-hazard move-out, the landlord has 72 hours to deliver the appropriate deposit and any rebate for rent prepaid for time after vacating. If the final hour falls on Saturday, Sunday or a legal holiday, delivery is due by noon on the next day that is none of those. The tenant must provide a correct forwarding address. Any lawful deposit retention requires a written statement of the exact reasons and payment of the balance; normal wear is not deductible. C.R.S. section 38-12-104(4)
In the Rentari Colorado lease

The Colorado lease states the warranty of habitability, the 24 and 72 hour deadlines to start repairs, and the comparable unit or hotel room within 24 hours of the tenant's request.

Tenant repair remedies

If you breach the warranty of habitability, the tenant may end the lease with 10 to 60 days' written notice, deduct the cost of a professional repair from rent after written notice, sue for damages and court orders, or raise the breach as a defense to an eviction.

C.R.S. § 38-12-507(1)

More detail (9)
  • Repair and deduct needs ten days' written notice, or 48 hours for a condition the tenant believes in good faith threatens life, health or safety; the repair must be done by a qualified professional who is not a relative, and the tenant must give you the receipt. C.R.S. § 38-12-507(1)(c)(I)
  • A broken appliance may be replaced after three days' written notice with one of comparable quality, and the cost deducted. C.R.S. § 38-12-507(1)(c)(II)
  • A tenant who deducts in bad faith owes double the amount wrongly deducted. C.R.S. § 38-12-507(1)(c)(IV)
  • If the same condition recurs within six months of the repair, the tenant may end the lease with at least ten days' notice given within 30 days of the recurrence. C.R.S. § 38-12-507(1)(b)
  • When a breach is found, the rent value is presumed to be zero for a life, health or safety condition and half the rent for other conditions, for the period it went unfixed. C.R.S. § 38-12-507(3)
  • In an eviction, a proven habitability defense means the court denies possession if the rent owed is paid within 30 days of the amount being set, orders repairs and awards the tenant costs and fees. C.R.S. § 38-12-507(2)
  • A lease term that waives these rights is void, and a landlord recovers attorney fees in a habitability case only if the tenant's claim was frivolous. C.R.S. § 38-12-507(4), (5)
  • The attorney general may seek a civil penalty of up to $20,000 per violation. C.R.S. § 38-12-512(5)
  • A habitability termination notice must identify the unrepaired conditions, state the intent to end the lease and vacate, and give a termination date at least ten days after notice, within the section's ten-to-sixty-day range. If repairs begin or finish before that date, the parties may agree in writing during or after the repair to withdraw the termination notice and continue the existing rental agreement. C.R.S. section 38-12-507(1)(a)

Locks and security devices

Keep locks on all exterior doors, and locks or security devices on windows designed to open, in good working order. A home that substantially lacks them is uninhabitable, and missing working locks are presumed to threaten life, health or safety, which starts the 24-hour repair clock.

C.R.S. § 38-12-505(1)(b)(XI), (4)(g)

More detail (3)
In the Rentari Colorado lease

The lease lets the tenant change locks only with written consent except where the law allows, including a victim-survivor's lock change rights, which the Colorado lease states with the fourteen days to give the landlord a key or code.

Smoke and carbon monoxide alarms

Partly read

Under Colorado's carbon monoxide alarm law, a rental home with fuel-fired appliances or an attached garage needs an operational alarm within 15 feet of the entrance to each room used for sleeping, or where a state or local building code specifies. The rule reaches an existing rental once a new tenant moves in on or after July 1, 2009, and a rental where permitted work was done on or after that date. Smoke alarm rules were not found in the parts of the statutes read for this page.

C.R.S. § 38-45-104(1), (2) C.R.S. § 38-45-102(2) C.R.S. § 38-45-103(2)

More detail (4)
  • Before each new tenancy, replace any carbon monoxide alarm that is missing or not working, and provide the batteries needed to make it work when the tenant moves in. C.R.S. § 38-45-104(3)(a)
  • During the tenancy, replace a stolen, missing or broken alarm, or fix a deficiency, when the tenant notifies you in writing; otherwise routine maintenance and batteries are the tenant's job. C.R.S. § 38-45-104(3), (4)
  • In a multifamily building with a centralized alarm system that someone can always hear, an alarm may instead be within 25 feet of any fuel-fired heater or appliance, fireplace or garage. C.R.S. § 38-45-104(5)
  • No one may remove the batteries or disable an alarm except to inspect, maintain, repair or replace it. C.R.S. § 38-45-104(6)
In the Rentari Colorado lease

The lease requires the landlord to provide working smoke and carbon monoxide detectors at move-in and bars the tenant from disabling them.

Retaliation

You may not retaliate against a tenant for a good faith complaint about habitability to you, a nonprofit or a government agency, for organizing or joining a tenants' association, or for using habitability remedies. Retaliation includes raising rent, cutting services, ending or not renewing the tenancy, threatening or filing an eviction, harassment, and charging fees.

C.R.S. § 38-12-509(1)

More detail (4)
  • The tenant need only show that the protected activity was a motivating factor, not the sole reason. C.R.S. § 38-12-509(1.7)
  • A retaliating landlord owes up to the greater of three months' rent or three times the tenant's actual damages, plus attorney fees and costs, and the tenant may end the lease. Retaliation is also a defense to eviction. C.R.S. § 38-12-509(1.5), (2)
  • You may not retaliate against a victim-survivor for changing locks or taking reasonable safety measures, or against a tenant for asserting rights on immigration status. C.R.S. § 38-12-402(7)(a) C.R.S. § 38-12-1203(1)(c)
  • Replacing a broken appliance with a different model of substantially the same features is presumed not retaliatory. C.R.S. § 38-12-509(3)
In the Rentari Colorado lease

The Colorado lease bars retaliation for complaining to a government agency, joining a tenants' organization, requesting habitability repairs or exercising rights under Colorado's landlord and tenant law.

Lockouts and utility shutoffs

You may not remove or exclude a tenant without going to court, except with the tenant's consent, under the rules for cleaning up an illegal drug laboratory, or when the tenant has clearly abandoned the home. Willfully shutting off utilities or removing doors, windows or locks, other than for repairs, counts as an unlawful exclusion.

C.R.S. § 38-12-510(1)

More detail (3)
  • Abandonment is shown by returned keys, substantial removal of belongings, notice from the tenant, or an extended absence while rent is unpaid, if any of these would lead a reasonable person to believe the tenant permanently gave up possession. C.R.S. § 38-12-510(1)
  • A tenant who is unlawfully excluded is owed actual damages plus the greater of three times the monthly rent or $5,000, attorney fees and costs, and the court may restore possession. C.R.S. § 38-12-510(2), (3)
  • You may bill utilities only at the utility's charge, plus a fee of up to 2 percent of the bill or $10 a month (not both), or through a ratio billing system that stays within the total bill, excludes common areas and is disclosed in the lease. C.R.S. § 6-1-737(4)(a), (4.5) C.R.S. § 38-12-801(3)(a)(VI)
In the Rentari Colorado lease

The lease says nothing in it allows the landlord to change the locks or exclude the tenant except through the court process the law requires.

Ending a tenancy

Ending a month-to-month tenancy

Written notice to end a periodic tenancy at the end of a period, or not to renew a fixed term, depends on the length of the tenancy: at least 91 days for one year or longer, 28 days for six months to under a year, 21 days for one month to under six months, three days for one week to under a month, and one day for less than a week. A tenant may use these notices for any home, but a landlord may end a covered residential tenancy only with a cause the for-cause eviction law allows.

C.R.S. § 13-40-107(1), (2) C.R.S. § 38-12-1303(1)

More detail (5)
  • The for-cause rule does not cover, among others, short-term rentals, single-family homes, duplexes and triplexes where the owner lives on site or next door, employer-provided housing, and tenants who have been in the home less than twelve months; for those, the landlord may use the notice periods alone. C.R.S. § 38-12-1302(1) C.R.S. § 13-40-107(1)
  • For a covered tenancy, no-fault grounds such as sale, demolition, substantial renovation, the owner or a family member moving in, or refusal to sign a new lease with reasonable terms generally need at least 90 days' written notice stating the legal and factual basis; an owner on active military duty moving in needs 45 days. C.R.S. § 38-12-1303(3), (5)
  • The notice must describe the property and the date the tenancy ends, and be signed by the party or their agent or attorney. C.R.S. § 13-40-107(3)
  • A tenant whose fixed term ends on a set date does not need to give notice. C.R.S. § 13-40-107(4)
  • A lease may not charge a fee or penalty for a tenant's failure to give notice of nonrenewal, beyond your actual losses. C.R.S. § 38-12-801(3)(a)(IV)

Ending a fixed-term lease early

Colorado gives tenants several specific rights to end a lease early: as a victim-survivor of domestic violence, domestic abuse, stalking or unlawful sexual behavior; after a tenant's death; for an unfixed habitability breach; and in some cases for a missing radon disclosure.

C.R.S. § 38-12-402(2) C.R.S. § 38-12-801(3.5)

More detail (8)
  • A victim-survivor who notifies you in writing, gives one of the listed forms of documentation and vacates owes at most one month's rent, and only if you document your actual damages within 30 days; it is due within 90 days, and nothing is owed if another tenant stays on the lease. C.R.S. § 38-12-402(2)
  • Keep a victim-survivor's status and new address confidential, and do not deduct for damage caused by the abuse. C.R.S. § 38-12-402(2)(b) C.R.S. § 38-12-402(4)
  • If a lease ends early because a tenant died, clauses requiring liquidated damages, repayment of concessions or any early termination fee are void; rent may run only to the later of the end of the month or ten business days after the unit is vacated following notice of the death. C.R.S. § 38-12-801(3.5)
  • A tenant may end the lease for an unfixed habitability breach with 10 to 60 days' written notice. C.R.S. § 38-12-507(1)(a) See Tenant repair remedies
  • A tenant may void the lease if you skip the radon disclosure or fail to try to mitigate radon within 180 days of a finding of 4 picocuries per liter or more, but since January 1, 2026 that right does not apply to leases of a year or less. C.R.S. § 38-12-803(3)
  • You may end the lease, if it allows, after a sudden disaster or government action makes the home impossible or unlawful to occupy, with at least 30 days' written notice and a return of the deposit by the termination date. C.R.S. § 38-12-503(11)
  • Victim-survivor documentation may be a self-attestation affidavit, a qualified third party's signed letter, a police report from the previous 120 days, or a qualifying protection or restraining order. A landlord may seek a qualified third party's letter if submitted documentation conflicts. Other additional documentation is not required; if required documentation is missing, the tenant has seven days after the landlord's written request to provide it. C.R.S. section 38-12-402(2)(a.5)
  • Before assigning the limited early-termination debt to a third-party collector, the landlord must satisfy the actual-damages documentation rules and give the victim-survivor at least 90 days' written notice of the intended assignment using the requested communication method, or the last known electronic contact if none was requested. The debt may not be assigned if the victim-survivor complies with the lawful collection notice before that period expires. C.R.S. section 38-12-402(2)(b)-(d)
In the Rentari Colorado lease

The Colorado lease states the domestic violence and death-of-tenant early termination rules, and the lease's military clause states the federal servicemember termination right.

Notice for unpaid rent

Before filing an eviction for unpaid rent, serve a written demand giving the tenant ten days to pay the rent or give up possession. The lease cannot waive this notice.

C.R.S. § 13-40-104(1)(d)

More detail (7)
  • The period is five days under an exempt residential agreement: a lease of a single-family home by a landlord who owns five or fewer single-family rentals and says in the lease that the ten-day period does not apply. Employer-provided housing uses three days. C.R.S. § 13-40-104(1)(d) C.R.S. § 13-40-104(5)(c), (d)
  • The demand must state the grounds and a specific description, describe the premises, give the date and time to deliver possession, be signed, and be written in English, Spanish or the tenant's primary language if you know it. C.R.S. § 13-40-106(1), (3)
  • It must also tell the tenant that a tenant receiving SSI, SSDI or Colorado Works cash assistance has a right to mediation before you file, and that a tenant who missed rent because of domestic violence, domestic abuse, stalking or unlawful sexual behavior may be entitled to a repayment plan of up to nine months. C.R.S. § 13-40-106(2), (4)
  • Serve it by handing it to the tenant, leaving it with a household member older than fifteen, or posting it on the premises after trying in person on two separate days. C.R.S. § 13-40-108
  • You must accept full payment of all amounts due under the notice, plus rent that has since come due, at any time until judgment, and the tenant cannot waive that right. C.R.S. § 13-40-115(4), (5)
  • An unpaid late fee is not grounds for eviction. C.R.S. § 38-12-105(1)(d)
  • For properties covered by the federal CARES Act notice rule, you must also follow 15 U.S.C. 9058(c) as enacted on March 27, 2020. C.R.S. § 38-12-1502(1)
In the Rentari Colorado lease

The Colorado lease says a notice for nonpayment requires the ten-day demand.

Notice for other lease violations

For a breach of a material lease term, serve written notice giving the tenant ten days to comply or give up possession (five days under an exempt residential agreement, three for employer-provided housing).

C.R.S. § 13-40-104(1)(e)

More detail (4)
  • If the tenant violates the same term again after that notice, the tenancy may be ended on ten days' written notice to terminate. C.R.S. § 13-40-104(1)(e.5)
  • A substantial violation, such as conduct that endangers people or a violent or drug-related felony on or near the premises, allows termination three days after written notice that describes the property, the date and the grounds. C.R.S. § 13-40-107.5(3), (4)
  • Conduct that disturbs others or causes a nuisance, or negligent damage, needs ten days' written notice describing the specific conduct and requiring it to stop. C.R.S. § 13-40-104(1)(j)
  • A tenant who is a victim-survivor of domestic violence, domestic abuse, stalking or unlawful sexual behavior that caused the violation, and who documents it, is protected from eviction on these grounds, and changing the locks for safety is not a violation. C.R.S. § 13-40-104(4) C.R.S. § 38-12-402(7)(b)

Eviction process

For most residential tenancies an eviction needs a cause the law recognizes, a proper written notice, and a court judgment. Eviction cases are filed in county or district court on the court's standard complaint form, and a tenant is removed only under a writ of restitution after judgment.

C.R.S. § 13-40-104(1) C.R.S. § 38-12-1303(1) C.R.S. § 38-12-510(1)

More detail (10)
  • Cause includes unpaid rent, a substantial violation, a material or repeated lease violation, nuisance, and the no-fault grounds with 90 days' notice. C.R.S. § 38-12-1303(2), (3) See Ending a month-to-month tenancy
  • Before filing against a tenant who receives SSI, SSDI or Colorado Works cash assistance, you must go through mediation at no cost to the tenant, unless the tenant did not disclose that income when you asked in writing, or you are a landlord with five or fewer single-family rentals and no more than five units, or a qualifying nonprofit. C.R.S. § 13-40-110(1)
  • The summons sets an appearance seven to fourteen days after it issues and tells the tenant that case records stay suppressed until possession is granted and that either side may appear remotely in county court. C.R.S. § 13-40-111(1), (4)
  • County court judgments for rent and damages in eviction cases are limited to $25,000, not counting costs and attorney fees. C.R.S. § 13-40-109
  • The court may not issue a writ until 48 hours after judgment, and a residential writ may not be carried out until ten days after judgment, or thirty days for a tenant receiving SSI, SSDI or Colorado Works cash assistance unless the judgment is for a substantial violation or the landlord has five or fewer single-family rentals and no more than five units. Writs are carried out only between sunrise and sunset and expire 49 days after issue. C.R.S. § 13-40-122(1) C.R.S. § 13-40-115(3)
  • The tenant may raise the landlord's failure to follow the for-cause law, a habitability breach or retaliation as a defense. C.R.S. § 38-12-1306 C.R.S. § 38-12-507(2) C.R.S. § 38-12-509(1.5)
  • The winning side recovers attorney fees only if the lease lets either party recover them, and a lease fee clause must favor the prevailing party. C.R.S. § 13-40-123 C.R.S. § 38-12-801(3)(a)(II)
  • Use the Judicial Branch's current form list: JDF 99 A is the demand for compliance, JDF 99 B addresses repeated or substantial violations, and JDF 99 C addresses qualifying no-fault grounds. Choose the proper language version, complete any required pre-filing mediation and use JDF 101 for the complaint and JDF 102 for the summons. Colorado Judicial Branch: residential eviction steps
  • For service, the court page lists the complaint and summons together with blank JDF 103 (Eviction Answer) and JDF 108 (Request for Documents). Give the server JDF 98, the Affidavit of Service, and file the completed return. These court papers serve a different purpose from the earlier demand or termination notice. Colorado Judicial Branch: residential eviction steps
  • Prepare a clearly labeled hearing file with the lease, notice, service records, payment history, relevant messages and photographs. The court page also lists JDF 106 A and B for a stipulated agreement and its order. Review the actual settlement terms and court directions before assuming a discussion has resolved the case. Colorado Judicial Branch: residential eviction steps

Property left behind

Partly read

Colorado's statutes read for this page address property left behind in a few settings only. After an eviction, you have no duty to store belongings removed when the writ is carried out; if you choose to store them, you may charge reasonable storage costs and either release them once those are paid or dispose of them under your landlord's lien.

C.R.S. § 13-40-122(3), (4)

More detail (4)
  • A landlord has a lien for unpaid rent on the tenant's furniture, goods and appliances in the home, but not on pets, small kitchen appliances, cooking utensils, beds, bedding, necessary clothing, records or personal effects. Once the tenant has moved out, allow reasonable access to remove property not covered by the lien. C.R.S. § 38-20-102(3)
  • Property under a lien is presumed abandoned after at least 30 days without contact from the owner, and you must send at least 15 days' notice by registered or certified mail before selling or disposing of it. C.R.S. § 38-20-116(1), (2)
  • The officer carrying out a writ checks for pets and hands them to the tenant or animal control; no pet may be left unattended. C.R.S. § 13-40-122(2.5)
  • After a tenant's death, you may take possession without an eviction if the estate's representative gives notice of surrender, or if 30 days after the death rent is unpaid or substantially all property is gone. C.R.S. § 38-12-801(3.5)(b)
In the Rentari Colorado lease

The lease treats the home as abandoned when the tenant is absent, rent is unpaid and the circumstances show surrender, and says left-behind property is handled as the law requires.

Small claims court

Small claims court hears civil claims up to $7,500, not counting interest and costs. It cannot hear evictions, class actions or most requests for court orders.

C.R.S. § 13-6-403(1), (2)

More detail (1)
  • Evictions go to county or district court; the county court's money judgment in an eviction case is limited to $25,000. C.R.S. § 13-40-109

More Colorado rules

Planning for property taxes

Partly read

Budget from the county’s parcel statement, not a statewide average. Colorado property tax calculations use the property’s actual value, the applicable assessment rate and each taxing district’s mill levy. The assessment year and the year you pay the bill are different.

Boulder County: property tax calculation

More detail (3)
  • Start with the assessor’s actual value. Apply the assessment rate and any applicable value adjustment to obtain the assessed value, then multiply that value by the relevant mill levy divided by 1,000. Add the district amounts. School and other local-government portions can use different assessment rates and adjustments, so a single percentage of the home’s market value can give the wrong estimate. Boulder County: property tax calculation
  • Read the bill and valuation notice together. Confirm the parcel, property classification, tax year, assessed values and districts before comparing one year with another. Boulder County’s guide distinguishes tax year 2025, paid in 2026, from tax year 2026, paid in 2027. Use your own county’s final statement for the amount owed; an illustrative calculation is not your bill. Boulder County: property tax calculation
  • For rental budgeting, keep the valuation notice, bill, payment confirmation and any mortgage-escrow statement together. Check with the county treasurer who will pay and when, especially if a lender handles escrow. Ask the assessor about record errors, valuation appeals and exemption eligibility using the current notice and program instructions. Confirm payment dates with the treasurer and rental-income tax treatment with your tax adviser; a homeowner exemption or deduction should not be assumed to apply to every rental. Boulder County: property tax calculation

Preparing your first Colorado rental

Partly read

Plan the rental as a sequence: check the property and local requirements, build a realistic budget, prepare the application and lease, then arrange move-in and ongoing management. Use the detailed topics in this guide for the rules behind each step.

C.R.S. § 38-12-803(2) C.R.S. § 38-12-801(2), (2.5) C.R.S. § 38-12-505(3)(c), (d)

More detail (4)

Unauthorized occupancy and title claims

Partly read

A disputed tenancy, unauthorized entry and an ownership claim require different legal assessments. Colorado’s special unauthorized-person process is limited and is not a substitute for an ordinary eviction. Check the person’s permission, agreements and claim before choosing a route.

Colorado Courts: remove unauthorized people

More detail (4)
  • The court guide’s eligibility questions include ownership or authority to act, a home vacant or uninhabited when entered, a demand to leave and notice that court relief will be requested. It excludes situations involving specified relatives or prior permission or agreements, among other conditions. Review every eligibility question; a missing written lease alone does not establish that the special process applies. Colorado Courts: remove unauthorized people
  • The court supplies a complaint, summons, motion, hearing notice and writ forms. Filing is followed by service and an opportunity to contest status; the judge decides whether to issue the injunction and writ, which the sheriff enforces. Use the current court guide for service and scheduling instead of assuming signing a motion or waiting two days completes removal. Colorado Courts: remove unauthorized people See Eviction process
  • The eighteen-year statute has additional requirements for fee-simple title claims, including clear and convincing proof and, for the covered claims vesting on or after July 1, 2008, a reasonable good-faith belief by the claimant or predecessor that they were the actual owner. A separate seven-year provision requires actual possession under good-faith claim and color of title, continued possession and all legally assessed tax payments, bounded by the paper title. Neither period means that anyone living in a home automatically becomes its owner. C.R.S. 38-41-101 and 38-41-108
  • Preserve the deed, legal description or survey, permission and lease records, payment history, dated photos, communications and court papers. Maintain secure access and arrange lawful checks of vacant property. Obtain help assessing disputed status or boundaries and keep the tenant protections against personal lockouts and utility shutoffs intact. C.R.S. § 38-12-510(1) See Lockouts and utility shutoffs

Local rules

Rent control and local rules

No county or city may adopt an ordinance that controls rent on private residential property. Voluntary agreements with a property owner or permit applicant to limit rent, and deed restrictions placed under such an agreement, are allowed.

C.R.S. § 38-12-301(1), (2)

More detail (3)
  • The warranty of habitability law is a matter of statewide concern, and a local rule that conflicts with it is unenforceable. C.R.S. § 38-12-501(1)
  • The attorney general, or a county or city, may ask the district court to appoint a receiver for multifamily property kept in a pattern of neglect. C.R.S. § 38-12-513(1), (2)
  • Cities and counties may set carbon monoxide alarm locations in their building codes. C.R.S. § 38-45-103(2)
Denver

Denver's official rental guidance requires the Tenant Rights and Resources document at written-lease execution and whenever a rent demand is made. Check the city program for rental licensing, inspection and exemptions. Only this selected city guidance was reviewed; the full code and linked notice contents remain unreviewed.

Denver residential rental property guidance: tenant notice

Boulder

Boulder requires interest on tenants' security deposits. The city's published 2026 rate is 2.08 percent, effective January 1; confirm the rates and calculation guidance applicable to the tenancy. Rental licensing, the full city code and the calculation formula were not separately reviewed.

City of Boulder: 2026 security deposit interest

Aurora

Aurora has its own residential rental rules, including rental licensing and inspection. They were not read for this page; check the city's code.

Fort Collins

Fort Collins has its own residential rental rules. They were not read for this page; check the city's code.

Other Colorado cities and counties

Cities and counties have building, fire and housing codes that can add duties for rental property, such as alarm placement. None was read for this page.

Colorado landlord questions

How much can I charge for a security deposit in Colorado?

No more than two monthly rent payments under the rental agreement. A pet deposit is separate, may not exceed $300 and must be refundable.

C.R.S. § 38-12-102.5(1) C.R.S. § 38-12-106(1)

When do I have to return a Colorado security deposit?

Within 30 days after the lease ends or the tenant surrenders the home, whichever is later, or up to 60 days if the lease says so. Any deduction needs a written statement of the exact reasons, sent with the balance.

C.R.S. § 38-12-103(1)(a)

What happens if I keep a deposit wrongfully?

You lose the right to keep any of it, and if you do not return it within seven days after the tenant's demand and notice of intent to sue, you can owe three times the amount wrongfully withheld plus attorney fees and costs. You must prove the withholding was proper.

C.R.S. § 38-12-103(2), (3)

How much can I charge as a late fee?

Only a fee disclosed in the lease, only once rent is at least seven calendar days late, and no more than the greater of $50 or 5 percent of the past-due rent payment. You may not evict for unpaid late fees.

C.R.S. § 38-12-105(1)

How often can I raise the rent?

Once in any twelve-month period of the tenant's consecutive occupancy. If there is no written agreement, the increase also needs at least 60 days' written notice.

C.R.S. § 38-12-702(1) C.R.S. § 38-12-701(2)(a)

How much notice do I need to enter the home?

Colorado's landlord and tenant article sets no general entry notice, so the lease governs. Entry for habitability repairs needs 24 hours' written notice, and entry for bed bug inspection or treatment needs 48 hours' written or electronic notice unless the lease sets another minimum.

C.R.S. § 38-12-503(6) C.R.S. § 38-12-1004(1)

What notice do I give before filing an eviction for unpaid rent?

A written demand giving ten days to pay or give up possession, or five days under an exempt lease of a single-family home by a small landlord. You must accept full payment of what is owed at any time until judgment.

C.R.S. § 13-40-104(1)(d) C.R.S. § 13-40-115(4)

Can I end a month-to-month tenancy without a reason?

Only if the for-cause eviction law does not cover the home, for example when the tenant has lived there less than twelve months. Otherwise you need a cause the law lists, and the no-fault causes generally need 90 days' written notice.

C.R.S. § 38-12-1302(1) C.R.S. § 38-12-1303(1), (3)

How fast must I make repairs?

After written notice, start within 24 hours for a condition that threatens the tenant's life, health or safety and within 72 hours for other uninhabitable conditions, and keep going until it is fixed. For the most serious conditions, provide a comparable unit or hotel room within 24 hours if the tenant asks.

C.R.S. § 38-12-503(2), (4)

Can Colorado cities impose rent control?

No. Counties and cities may not adopt ordinances controlling rent on private residential property, though voluntary agreements with owners and deed restrictions are allowed.

C.R.S. § 38-12-301(1), (2)

What disclosures does a Colorado lease need?

A signed radon disclosure before signing, the landlord's or agent's name and address, the source of income statement unless you are exempt, and the bold habitability statements, including where tenants send notice of problems in English and Spanish.

C.R.S. § 38-12-803(2) C.R.S. § 38-12-801(2), (2.5) C.R.S. § 38-12-505(3)(c), (d)

Can I change the locks if a tenant stops paying?

No. Removing or excluding a tenant without court process, including by changing locks or shutting off utilities, is unlawful and can cost actual damages plus the greater of three months' rent or $5,000.

C.R.S. § 38-12-510(1), (2)

Statutes read for this page

Source: Colorado Revised Statutes 2026, the Office of Legislative Legal Services, Colorado General Assembly's official site, read on September 24, 2026.

Not read for this page (10)
  • City and county codes, including Denver, Boulder, Aurora and Fort Collins rental ordinances and local building and fire codes.
  • Smoke alarm requirements outside the carbon monoxide alarm law, and building and fire codes.
  • Any flood disclosure rule outside Colorado's landlord and tenant article.
  • The mobile home park parts of Colorado's landlord and tenant article.
  • Parts of the eviction article not listed above, and court rules.
  • Additional incorporated fair housing definitions, agency rules and federal disability housing requirements.
  • Federal law: the lead-based paint disclosure, the Servicemembers Civil Relief Act, the federal Fair Housing Act, and the federal eviction notice rule that Colorado points to.
  • Attorney general rules on pricing and fee disclosures, and court decisions. This page reflects statute text only.
  • The landlord's lien sale procedure.
  • Laws behind other lease clauses: cannabis and smoking, towing, and any tenant right to install solar equipment.

General information, not legal advice. Checked against the Colorado statutes on the Legislature's own site on September 24, 2026; no attorney review is recorded. Laws change, so confirm the current text through the links above or with a Colorado attorney.

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