Colorado Landlord-Tenant Laws (2026): Deposits, Notice, and Tenant Rights

Colorado landlords may hold a maximum security deposit of one month's rent (since January 1, 2026, under HB 25-1249) and must return it within 30 days of move-out. The state does not set a fixed minimum notice-to-enter period for routine entry, but 24 to 48 hours is the well-established standard.

Security deposits in Colorado

Colorado's security deposit rules changed substantially on January 1, 2026, when HB 25-1249 took effect. Under the current law, a landlord may collect no more than one month's rent as a security deposit, regardless of lease length or unit type. The previous cap had been two months' rent, and leases could specify return periods of up to 60 days. Both of those higher limits were abolished by the 2026 law.

HB 25-1249 also introduced an important affordability protection: if a tenant cannot pay the full deposit at move-in, they may pay it in two equal installments, with the second installment due by the second month's rent. Landlords may not refuse this installment option or charge extra for it. The new law represents one of the most significant changes to Colorado tenant rights in recent years.

The deposit must be returned, together with a written itemized accounting of any deductions, within 30 days of the tenant surrendering possession and returning keys. Allowable deductions cover unpaid rent and damage beyond normal wear and tear. If the landlord fails to return the deposit and accounting within 30 days without a good-faith excuse, the tenant may recover the full deposit plus triple the wrongfully withheld amount under C.R.S. 38-12-103.

When can a landlord enter? Notice rules

Colorado does not have a single statewide statute setting a fixed minimum advance notice period for all types of routine landlord entry. In practice, courts and housing agencies recognize 24 to 48 hours as the appropriate advance notice standard, and this is frequently written into lease agreements. For bed-bug inspections specifically, state law requires 48 hours' written notice.

Landlords may enter for legitimate purposes: repairs, inspections, showing the unit to prospective tenants or buyers, and similar needs. Entry must occur at reasonable hours, generally understood as normal daytime and early evening hours. In genuine emergencies involving immediate threats to person or property, a landlord may enter without advance notice. Many leases in Colorado specify a 24-hour or 48-hour notice requirement; those lease provisions are enforceable and represent the clearest standard for most tenants.

If a landlord repeatedly enters without proper notice or at unreasonable hours, that conduct can amount to harassment. Colorado courts have found that systematic violations of tenant privacy can support a claim for damages and, in extreme cases, grounds for constructive eviction.

Ending a lease: notice to vacate

To terminate a month-to-month tenancy in Colorado, either the landlord or the tenant must give 30 days of written advance notice before the next rent due date. This applies to standard no-fault terminations where there is no lease violation.

There is one notable exception: if the landlord plans to raise the rent by more than 10% above what was charged at any point in the prior 12 months, the landlord must give 60 days notice before the increase takes effect, rather than the standard 30 days. This extra notice requirement gives tenants more time to plan when facing a substantial rent increase.

For terminations based on nonpayment of rent, a lease violation, or other for-cause grounds, a separate formal notice process applies under Colorado eviction law. See the Colorado eviction notice generator for the specific notice forms and timelines required for each type of eviction. For holdover tenants or squatters, see Colorado squatters rights.

Repairs and the warranty of habitability

Colorado's warranty of habitability is codified at C.R.S. 38-12-503 and covers all residential rental units in the state. Landlords must maintain the unit in a condition that is fit for human habitation, which includes working heating, plumbing, electrical systems, weatherproofing, and freedom from conditions that pose a material health or safety threat. The standard requires that the unit meet local building and housing codes to the extent those codes affect habitability.

Colorado tenants have an available repair-and-deduct remedy. If the landlord fails to address a habitability defect after receiving written notice, the tenant may arrange for a repair and deduct the reasonable cost from rent. The standard notice period before exercising this remedy is 10 days, but if the condition poses a health or safety threat, the tenant need only wait 48 hours after providing notice. Tenants should always send repair requests in writing, keep copies, and retain receipts for any work performed.

In addition to repair-and-deduct, tenants facing persistent habitability failures may pursue rent reduction, seek an order from a housing court, or in serious cases, treat the landlord's failure as a constructive eviction and terminate the lease.

Rent, late fees, and rent control

Colorado sets firm, clear rules on late fees. Before a landlord may charge any late fee at all, the tenant must be at least 7 calendar days late with rent payment. That 7-day grace period is mandatory and may not be shortened by lease language. After the grace period expires, the late fee is capped at the lesser of $50 or 5% of the overdue rent amount. Fees above this cap are unenforceable.

Rent control is preempted by state law in Colorado. Cities and counties may not enact rent stabilization ordinances or set any cap on the amount landlords may charge or increase rent in the private market. The sole exception is voluntary deed-restricted affordable housing, where below-market rents are part of a regulatory agreement rather than a municipal mandate. Renters in Colorado should be aware that, outside of lease terms, there is no limit on how much a landlord may raise rent in Colorado.

For any rent increase of more than 10% over the prior year's rent, the landlord must give 60 days advance notice, as described in the termination-notice section above.

If you have a landlord-tenant dispute in Colorado

Start by creating a clear paper trail. Send all communications to your landlord in writing, preferably by certified mail or email with read receipts. Photograph any habitability issues with a date stamp as soon as they appear. For repair requests, keep a copy of every notice you send and note the date you sent it.

For security deposit disputes, Colorado small claims court handles cases up to $7,500 and is an accessible, lower-cost venue. Under C.R.S. 38-12-103, a landlord who wrongfully withholds a deposit beyond the 30-day deadline may owe triple the amount plus court costs. Bring your lease, move-in and move-out checklists, photographs, and any written correspondence to court.

For habitability issues, contact your city or county code-enforcement department to request an inspection. A code-inspection report creates official documentation that significantly strengthens a repair-and-deduct or rent-reduction claim. The Colorado Department of Local Affairs and the Colorado Attorney General's office maintain tenant-rights resources and complaint processes.

If your dispute involves eviction, substantial damages, or a potential wrongful eviction claim, consulting a tenant-rights attorney is worthwhile. Colorado Legal Services provides free civil legal assistance to qualifying low-income residents throughout the state.

This article is general legal information, not legal advice. Landlord-tenant rules vary by state and city and change, and some cities add their own ordinances. For advice about a specific situation, consult a licensed attorney or your state housing agency.

Related pages: Landlord-Tenant Laws by State (hub) | Colorado Eviction Notice Generator | Colorado Squatters Rights

More Colorado Laws

• Colorado Property Records
• Colorado Restraining Order Laws
• Colorado Squatters Rights Laws
• Colorado Unclaimed Property