Published 2026-09-27 · 8 min read

Colorado Security Deposit Law 2026: Limits, Deadlines & Deductions

Colorado caps security deposits at two months' rent as of 2026, requires return within 30 days, and punishes willful violations with treble damages — three times the amount wrongfully withheld plus attorney's fees — under C.R.S. §§ 38-12-102.5 through 38-12-104. Miss the deadline and you forfeit the right to withhold anything at all. Every section below is from the Colorado Revised Statutes' security deposit provisions.

The short version: Since January 1, 2026, charge no more than two months' rent. Return the deposit within 30 days of lease termination or surrender (your lease may extend this to 60 days, never more). Any withholding needs a written statement listing the exact reasons. Miss the deadline — for any reason — and you lose the right to keep a dime, plus face triple damages for willful violations.

The statute table

Limits: how much can you charge?

Two months' rent under the new § 38-12-102.5, effective January 1, 2026. Before 2026 Colorado had no statutory cap at all, so older guides saying "no limit" are stale — update your lease templates. Pet deposits are treated as security deposits and count toward the cap (a separate pet law caps additional pet deposits at $300).

Check your cap with the Security Deposit Max Checker.

The 30-day deadline, precisely

30 days after termination of the lease or surrender and acceptance of the premises, whichever occurs last. Your lease may specify a longer period, but never more than 60 days. Mailing the statement and payment to the tenant's last known address counts as compliance. The 2026 amendments (HB 25-1249) added a brutal kicker: missing the deadline forfeits all your rights to retain any portion of the deposit — even deductions that were perfectly legitimate. The tenant doesn't have to prove damages; the missed deadline alone voids your claim.

Find your exact date with the Security Deposit Deadline Finder.

When the clock actually starts

The statute runs the 30 days from termination of the lease or surrender and acceptance of the premises, whichever occurs last — not from the day you finish cleaning, not from the day your contractor sends an invoice, and not from the day you get around to walking the unit. In an ordinary move-out, termination, surrender, and your inspection all land within a day or two of each other, so the practical rule is to treat the later of those dates as day zero and count forward from there. Write that date in the deposit file the day the keys come back. If a return is ever disputed, that date is the fact everything else turns on, and a landlord who reconstructed it from memory months later starts the argument from behind. Thirty days feels comfortable right up until a disputed deduction, a slow repair quote, and a missing receipt eat most of it — start the accounting in the first week, not the fourth. And remember the lease can only stretch the window, to 60 days at most; it can never shorten the tenant's protection below what the statute gives.

A worked example

Say a tenancy terminates and the tenant surrenders the unit on Monday, March 2, 2026, on a unit renting for $1,800 a month with a $3,600 deposit — the two-month maximum. Counting 30 calendar days from March 2, the return deadline falls on Wednesday, April 1, 2026: by that date you must have delivered the remaining balance together with the written statement listing the exact reasons for any withholding, mailed to the tenant's last known address. Suppose the tenant left $500 of unpaid rent and $700 of documented damage beyond normal wear and tear — $1,200 of legitimate deductions. Handled on time, you keep the $1,200 and return $2,400 with the written statement, and the matter is closed. Handled late, the same $1,200 becomes the backdrop for the penalty in the section below, because the missed deadline forfeits the deductions themselves. Work backwards from April 1: inspect and photograph in the first few days, price the repairs by the end of the first week, and have the statement and check ready days early so a lost envelope or a wrong address cannot make you late.

Deductions and the itemized list

Deduct for unpaid rent, unpaid utilities, and necessary repairs — but as of 2026, never for normal wear and tear or for damage or defective conditions that pre-existed the tenancy. Every withholding needs a written statement listing the exact reasons, delivered with the remaining balance. "Cleaning — $400" isn't enough; identify what was damaged, what remedy it required, and what it cost. If the tenant requests it in writing within 14 days of receiving your statement, you must also turn over relevant documentation in your possession — estimates, receipts, photos.

Build the letter with the Security Deposit Deduction Letter Generator.

Move-out compliance checklist

1. Fix the clock on day one. Record the termination-or-surrender date in the deposit file when the keys come back — the 30-day count runs from the later of those events, and every later step is measured against it.

2. Check your lease's window. Confirm whether your lease extends the return period beyond 30 days; anything past 60 days is unenforceable, and the default without lease language is 30 days.

3. Inspect and photograph within the first few days. Walk the unit promptly and photograph every room before cleaning or repairs begin; the photos are what separate chargeable damage from pre-existing conditions and normal wear and tear.

4. Price deductions from records, not estimates. Tie every deduction to unpaid rent, unpaid utilities, or documented damage, using invoices, receipts, or your own dated repair log — and keep the documentation ready, because the tenant can demand it in writing within 14 days of your statement.

5. Itemize every dollar in writing. List the exact reason for each amount withheld alongside the balance being returned — a single lump-sum figure does not satisfy § 38-12-103.

6. Deliver well before day 30. Send the written statement and the balance to the tenant's last known address inside the window; missing the deadline forfeits every deduction, however legitimate.

7. Keep the file after you deliver. Retain the lease, photos, statement, receipts, and proof of mailing together; the treble-damage exposure under § 38-12-104 means a tenant can afford to challenge a sloppy file long after move-out.

Interest and where the money sits

No interest requirement and no separate-account mandate. Colorado governs what happens to the deposit at move-out, not how you store it during the tenancy. Automatic cleaning or carpet-charge clauses in leases are void under the 2026 law, so strip them from your templates.

The penalty, spelled out

Willful retention in violation of the statute makes you liable for three times the amount wrongfully withheld, plus the tenant's reasonable attorney's fees and court costs under § 38-12-104. Combined with the deadline-forfeiture rule, the exposure stacks fast: miss the 30-day window on a $2,000 deposit and you can owe the full $2,000 back plus up to $6,000 in treble damages. One procedural mercy: the tenant must give you 7 days' written notice of intent to file suit before suing — use that week to fix the problem, not to dig in.

Run the worked example through that penalty: the $1,200 of legitimate deductions, retained past the April 1 deadline, is forfeited outright — the full $3,600 comes back — and if the retention was willful, treble damages on the amount wrongfully withheld plus the tenant's attorney's fees and court costs stack on top. In other words, missing the deadline can cost several times the amount you were entitled to keep, on deductions nobody disputed. Colorado's forfeiture rule is the harshest deadline consequence in this series; what it does not give you is a second chance once the 30 days have run.

Read the statute yourself

Everything on this page traces back to C.R.S. §§ 38-12-102.5 through 38-12-104. If a deadline or deduction is ever disputed, the statutory text — not a summary — is what controls:

• C.R.S. § 38-12-103 — Return of security deposit (Cornell Law Institute) — the full statutory text of the return, itemization, and forfeiture provisions, including the 30-day default and the 60-day lease maximum.
• C.R.S. § 38-12-103 — Return of security deposit (Colorado Public Law) — the same section in a clean single-page reading format, useful for checking the exact wording before you cite the statute in a deduction letter.

FAQ

Is the two-month cap really new for 2026?

Yes. § 38-12-102.5 took effect January 1, 2026. Leases signed before that under the old no-cap regime aren't retroactively rewritten, but new leases must comply.

Can my lease give me 60 days to return the deposit?

Yes — the lease may specify any period up to 60 days. Beyond 60 is unenforceable, and the default without lease language is 30 days.

Can I deduct for repainting and carpet cleaning?

Only for damage beyond normal wear and tear. Routine repainting and standard carpet cleaning after a normal tenancy are not deductible, and automatic cleaning-fee clauses are void.

What happens if I'm one day late?

You forfeit all rights to withhold any portion of the deposit — even valid deductions — and you become exposed to treble damages if the retention was willful.

Does the deposit earn interest?

No. Colorado has no interest requirement.

Does the tenant have to warn me before suing?

Yes — at least 7 days' written notice of intent to file legal proceedings. Treat that notice as your last chance to settle.

When exactly does the 30-day clock start?

On termination of the lease or surrender and acceptance of the premises, whichever occurs last. Treat the day the tenancy ends and the keys come back as day zero, log that date in the deposit file, and count 30 calendar days forward — your cleaning and repair schedule does not move the deadline, and only lease language (capped at 60 days) can.

Do I have to hold the deposit in a separate account or document deductions?

Colorado imposes no separate-account or interest requirement. But every withholding needs a written statement of the exact reasons, and if the tenant asks in writing within 14 days of receiving it, you must turn over the supporting documentation in your possession — estimates, receipts, and photos — so keep the file from day one.

One day late in Colorado forfeits everything: miss the 30-day deadline and you lose the right to retain any portion of the deposit — even legitimate deductions — on top of treble-damage exposure. The Security Deposit Disposition & Deadline Tracker keeps your deposit register, deduction ledger, and deadline calendar in one formula-driven tracker ($14.95, one-time purchase).

More security deposit guides

• Security deposit laws by state
• California security deposit law
• Connecticut security deposit law
• Arkansas security deposit law
• Delaware security deposit law

Last verified: October 14, 2026. This is general information, not legal advice. Verify with a licensed Colorado attorney before acting.