Colorado Security Deposit Deadline in 2026: 30 Days, Up to 60 by Lease & the 7-Day Demand Rule
Colorado generally requires a security deposit accounting within one month after the tenancy ends, unless the lease allows a longer period of up to 60 days. Learn what happens when the deadline is missed, how the 7-day demand rule works, and what changed for deposit deductions in 2026.
The short answer
Colorado generally requires a landlord to return the security deposit or provide the required written accounting within one month after the lease terminates or the premises are surrendered and accepted, whichever occurs later. A lease may specify a longer period, but the statutory maximum is 60 days.
If the landlord does not provide the required written statement within the applicable deadline, Colorado Revised Statutes section 38-12-103 says the landlord forfeits the right to withhold any portion of the security deposit. Whether the deadline was actually missed can still turn on the tenancy-end date, surrender and acceptance, the lease language, and evidence showing when the statement and payment were sent.
When Colorado uses 30 days and when a lease can use up to 60
The statutory default is one month after the later of lease termination or surrender and acceptance of the premises. The rental agreement can extend that period, but not beyond 60 days.
That means a lease clause calling for 45 or 60 days can change the default deadline, while a clause attempting to give the landlord more than 60 days cannot override the statutory maximum. Keep the signed lease and key-return or possession records so the correct deadline can be calculated from the actual tenancy timeline.
What the landlord must provide when taking deductions
When a landlord has actual cause to retain part of a deposit, section 38-12-103 requires a written statement listing the exact reasons for the retention and payment of the difference between the deposit and the amount retained.
A deduction should therefore be evaluated as both a timing issue and a substance issue. Even a timely accounting does not make an unsupported charge lawful, and a disputed charge should be compared with the lease, the condition evidence, the 2026 security-deposit protections, and the amount of actual damage.
What happens if the deadline passes with no accounting
Colorado's official renters-rights summary states that if the landlord fails to provide the required written statement within the applicable time, the landlord forfeits all rights to withhold any portion of the security deposit.
That forfeiture rule concerns retention of the security deposit. It should not be stretched into a blanket statement that no separate claim could ever exist for independently provable damage or unpaid obligations. If a landlord later asserts a separate claim, the legal basis, timing, evidence and amount should be evaluated on their own.
A claimed lost check does not answer every deadline question
If a landlord says a refund or accounting was sent on time but never arrived, preserve the envelope, check date, cancellation records, email timestamps, portal records and any proof showing where and when the required materials were sent. Colorado law focuses on compliance with the statutory delivery requirements, not simply on the date a replacement check is eventually received.
A replacement payment that later contains a new deduction can create a separate factual question about whether an itemized deduction statement was timely sent in the first place. The safest approach is to reconstruct the timeline from documents rather than assuming either side's recollection settles the issue.
The 7-day demand rule comes before a treble-damages action
Colorado's official legislative summary explains that a tenant seeking the statute's treble-damages remedy for willful and wrongful retention must notify the landlord of the intention to file legal proceedings at least seven days before filing the action.
The same summary states that the landlord may avoid the treble-damages remedy by returning the entire amount demanded during that seven-day period. Treble damages are therefore not automatic merely because a deadline was disputed; the statutory notice step and the facts surrounding the withholding matter.
Colorado strengthened deposit-deduction protections for 2026
House Bill 25-1249 took effect January 1, 2026 and strengthened Colorado's security-deposit rules. The enacted measure expands the treatment of normal wear and tear, bars retention for damage or defective conditions that preexisted the tenancy, adds documentation protections, and more specifically defines circumstances that can support a finding of bad-faith retention.
The 2026 law also places the burden on the landlord in a tenant court action to prove the amount of actual damages. It includes specific limitations for carpet replacement and repainting, so a landlord should not treat ordinary aging, minor wear or the full replacement cost of an older item as automatically chargeable to the deposit.
Normal wear and tear is different from tenant-caused damage
Colorado law does not allow a security deposit to be retained for normal wear and tear. The Attorney General has also taken enforcement action against property-management practices that charged renters for routine maintenance, painting, cleaning or other costs that were not properly tied to tenant-caused damage.
For a disputed wall, paint, carpet or cleaning charge, preserve move-in and move-out photos, condition reports, repair requests, invoices, receipts and the landlord's written explanation. The question is not simply whether work occurred after move-out, but whether the tenant lawfully caused the charge and whether the amount reflects actual damage rather than ordinary turnover or aging.
Build a clean record before escalating the dispute
Keep the lease, proof of the deposit amount, move-in report, move-out photos or video, notice of move-out, key-return evidence, forwarding-address communications, the landlord's itemized statement, refund checks, envelopes, email headers, invoices, estimates, and every message about the timing or deduction.
If the applicable deadline has passed, calculate it in writing and separate the issues: when possession ended, what deadline the lease permits, whether a statement was sent on time, what amount was withheld, and why. That record makes a demand letter, court filing or legal consultation much more precise.
Use Max Rental Tools to organize the deposit record
Max Rental Tools includes a Move-Out Condition Report, Security Deposit Itemization, Security Deposit Refund Statement and Move-In Condition Report. These documents can help organize the factual record, while Colorado's statutes and current government guidance control the legal requirements.
For an active dispute involving a missed deadline, a substantial deduction or a possible court claim, use the official Colorado sources below and consider legal advice before assuming a particular damages award or court outcome.
Common questions
How long does a Colorado landlord have to return a security deposit in 2026?
The statutory default is one month after the later of lease termination or surrender and acceptance of the premises. A lease may specify a longer period, but not more than 60 days.
What happens if a Colorado landlord misses the security-deposit deadline?
Colorado's official renters-rights summary states that failure to provide the required written statement within the applicable period causes the landlord to forfeit the right to withhold any portion of the security deposit. The facts still matter when the landlord claims the statement or payment was timely sent.
Does Colorado require a 7-day demand before suing for three times the deposit?
For the statutory treble-damages remedy based on willful and wrongful retention, Colorado's official legislative summary says the tenant must give notice of the intention to file legal proceedings at least seven days before filing.
Can a Colorado landlord deduct for normal wear and tear?
No. Colorado law prohibits withholding a security deposit for normal wear and tear. The 2026 law also strengthened protections involving preexisting conditions, actual damages and documentation.
Did Colorado change security-deposit law in 2026?
Yes. House Bill 25-1249 took effect January 1, 2026 and strengthened rules concerning normal wear and tear, preexisting conditions, documentation, bad-faith retention, actual damages, carpet and repainting deductions, and the landlord's burden of proof in a tenant court action.
Official sources
Colorado General Assembly — Renters' Rights Law SummaryColorado General Assembly — HB25-1249 Tenant Security Deposit ProtectionsColorado Attorney General — Four Star Realty Security-Deposit EnforcementColorado Attorney General — Consumer ProtectionContinue your check
Use the state directory for current jurisdiction-specific rules, calculate the proposed increase, then prepare the appropriate rental document only after the legal-rule checks are complete.