Free Colorado Security Deposit Return Letter

How the Colorado Security Deposit Return Law Works

Colorado’s security deposit rules live in the Colorado Revised Statutes at C.R.S. § 38-12-101 through § 38-12-104. The core rule is a deadline: after a tenancy ends, a landlord has a limited window to either return the whole deposit or return the balance together with a written statement of exactly why each dollar was kept. Getting this timing and paperwork right is the single most important step, because the penalty for getting it wrong is severe and does not depend on whether the underlying deductions were fair. Our Colorado itemized-deductions worksheet pairs with this letter when you have many line items to document.

The statute treats the deposit as the tenant’s money that the landlord merely holds. Under C.R.S. § 38-12-102, a security deposit is any advance or deposit of money whose primary function is to secure performance of the rental agreement. Because it belongs to the tenant, the burden sits on the landlord to justify keeping any part of it, and to prove that justification if the matter reaches a court. A clean, itemized letter delivered on time is how a landlord meets that burden without a fight.

The One-Month Return Deadline (C.R.S. § 38-12-103(1))

Under subsection (1), a landlord must return the full deposit within one month after the lease terminates or after the tenant surrenders and the landlord accepts the premises — whichever happens last. A written lease may extend that period, but never beyond sixty days. If the lease is silent on the point, the one-month deadline governs by default; a landlord cannot assume the longer window without the lease language to support it.

The clock starts at surrender of possession, not at the lease’s calendar end date and not at the moment repairs are finished. In practice this means the deadline can arrive before you have every repair invoice in hand. When that happens, the correct move is to send the statement with good-faith estimates by the deadline rather than to wait — the 2026 amendments expressly contemplate estimates as acceptable supporting documentation. If you are also handling a move-out that ended a tenancy early, our guide on how to terminate a lease early explains how surrender interacts with the deadline.

What the 2026 Amendments Changed (HB25-1249)

House Bill 25-1249 took effect on January 1, 2026 and tightened the statute in ways every Colorado landlord should note. The deadline itself did not change, but what a landlord may keep, and what a landlord must be able to show, changed substantially. This letter and its worksheet are written to the current version of the law.

• No wear-and-tear or preexisting deductions. A landlord may not withhold for normal wear and tear or for damage or a defective condition that existed before the tenancy began.
• Only reasonable, documented amounts. Withholding is limited to reasonable amounts for unpaid rent, unpaid utilities, other lawful charges listed in the lease, and necessary repairs for damage exceeding normal wear and tear that did not preexist the tenancy.
• Documentation on demand. If the tenant asks, the landlord must provide all supporting documentation in their possession — photographs, inspection forms or reports, receipts, invoices, or estimates — within fourteen days of the request.
• Carpet and paint limits. A landlord generally cannot charge for carpet replacement or interior repainting unless the damage is substantial and exceeds normal wear and tear, with a specific restriction where carpet was replaced within the prior ten years.
• A 125 percent red line. An amount retained is presumed to unreasonably exceed actual damages if it is one hundred twenty-five percent or more of the documented actual damages.

Forfeiture: Missing the Deadline Costs Everything (Subsection (2))

Subsection (2) is blunt: the failure of a landlord to provide the written statement within the required time works a forfeiture of all rights to withhold any portion of the security deposit. There is no partial credit and no good-faith exception for a late statement. A landlord who was owed a legitimate amount for unpaid rent, but who sends the itemization one day late, loses the right to keep even that legitimate amount and must return the entire deposit.

This is why the deadline dominates every other consideration. A perfectly itemized statement delivered late is worth nothing under subsection (2); a plainly documented statement delivered on time protects the entire deduction. Treat the calendar, not the paperwork, as your first priority, and use certified mail so you can prove the delivery date.

Treble Damages, Attorney Fees, and the 7-Day Notice (Subsection (3))

Subsection (3) supplies the financial teeth. A landlord who willfully retains a deposit in violation of the statute is liable for treble — three times — the amount wrongfully withheld, together with reasonable attorney fees and court costs. The trebling applies to the wrongfully withheld portion, so an over-aggressive deduction can multiply into a much larger judgment once fees are added.

The statute does build in one procedural step that favors landlords: before filing suit, the tenant must give the landlord at least seven days written notice of the intention to file legal proceedings. That seven-day window is a genuine chance to cure — a landlord who receives such a notice and promptly returns the disputed amount can often avoid the treble exposure entirely. Landlords who want to understand the broader liability picture should review our landlord retaliation guide, since deposit disputes and retaliation claims frequently travel together.

Lawful Deductions vs. Normal Wear and Tear

The line between a lawful deduction and non-deductible wear is where most disputes are won or lost. Colorado defines normal wear and tear as deterioration that occurs, based on the intended use of the unit, without negligence, carelessness, accident, or abuse by the tenant, the tenant’s household, or their guests. Everyday aging of a unit is the landlord’s cost of doing business; damage from misuse is not.

Generally Deductible (documented, exceeds wear)

• Unpaid rent owed through the end of the tenancy.
• Unpaid utilities the tenant was responsible for under the lease.
• Repair of holes, breaks, or stains that exceed normal wear and did not preexist the tenancy.
• Cleaning necessary only where the unit is left excessively dirty beyond ordinary use.
• Other lawful charges expressly listed in the lease.

Never Deductible (normal wear and tear)

• Minor scuffs, nail holes, and faded paint from ordinary occupancy.
• Carpet worn in high-traffic paths from everyday walking.
• Minor scratches on floors and worn spots on countertops.
• Any condition that already existed when the tenant moved in.

Statute & Citation Reference

Provision	Citation	Rule in plain terms
Return deadline	C.R.S. § 38-12-103(1)	One month after termination or surrender; up to sixty days if the lease says so.
Written statement	C.R.S. § 38-12-103(1)	Deliver a written statement listing the exact reasons for any retention.
Forfeiture	C.R.S. § 38-12-103(2)	No timely statement forfeits all right to withhold.
Willful retention penalty	C.R.S. § 38-12-103(3)	Treble damages plus reasonable attorney fees and court costs.
Pre-suit notice	C.R.S. § 38-12-103(3)	Tenant must give seven days written notice of intent to sue.
Definitions	C.R.S. § 38-12-102	Defines security deposit and normal wear and tear.
2026 amendments	HB25-1249 (eff. Jan 1, 2026)	No wear-tear or preexisting deductions; documentation on demand; 125 percent presumption.

Common Mistakes Colorado Landlords Make

Most deposit judgments trace back to a small number of avoidable errors. Reviewing them before you mail the letter is the cheapest insurance available.

• Counting from the wrong date. Starting the clock at the lease end date instead of the surrender date can silently blow the one-month deadline.
• Assuming the sixty-day window. The longer period applies only if the lease actually says so in writing.
• Deducting for wear and tear. Charging for faded paint or path-worn carpet is exactly the deduction the 2026 amendments prohibit.
• Keeping no documentation. Without photos, invoices, or estimates, a deduction cannot survive a tenant’s fourteen-day demand or a courtroom.
• Waiting for final invoices. Send the statement on time with good-faith estimates instead of missing the deadline.
• Ignoring the seven-day notice. A tenant’s notice of intent to sue is a cure opportunity, not junk mail.

Best Practices for a Clean Return

1. Document move-in condition with a dated move-in inspection and photographs so preexisting conditions are provable.
2. Collect the tenant’s forwarding address in writing at move-out.
3. Conduct a move-out walk-through; either party may request an inspection under the 2026 law.
4. Photograph any damage before you repair it, and keep every receipt, invoice, and estimate.
5. Complete this letter, let the form calculate the refund, and double-check the math.
6. Mail the statement and refund by certified mail with return receipt before the deadline.
7. Keep a full copy of the signed letter and all documentation for your records.

The Move-Out Walk-Through Inspection

The 2026 amendments formalized a walk-through inspection right that experienced landlords already used as best practice. Upon a request by either the landlord or the tenant, and where reasonable and practicable, the parties may conduct a joint inspection of the unit to identify any damage that exceeds normal wear and tear. The inspection can be in person or, where the parties agree, virtual. The value of this step is not the ceremony but the record: a shared, contemporaneous account of the unit’s condition removes most of the ambiguity that later fuels a deposit fight.

For a landlord, the inspection is an early-warning system. If the tenant sees the same water-stained ceiling or gouged door that you intend to charge for, the deduction becomes far harder to dispute later. Conversely, if a condition you assumed was tenant damage turns out to be a preexisting defect on your own move-in paperwork, you learn that before you send an unlawful charge that could trigger forfeiture. Pair the walk-through with the photographs from your dated move-in inspection so the before-and-after comparison is airtight. A tenant who declines the offered inspection cannot later claim surprise at a well-documented deduction.

The 125 Percent Presumption in Practice

One of the sharpest tools the 2026 law hands tenants is a presumption. If the amount a landlord retains reaches one hundred twenty-five percent or more of the documented actual damages, the retention is presumed to unreasonably exceed those damages. In plain terms, padding a deduction beyond the real, provable cost is now presumptively unreasonable, and unreasonable retention is exactly the conduct that leads to treble-damage exposure. The presumption shifts the practical burden onto a landlord who has stretched a number.

The lesson for the return letter is discipline. Every line item should map to a receipt, an invoice, or a good-faith written estimate, and the total should sit at or near the documented cost rather than a comfortable margin above it. If a repair genuinely costs a certain amount, charge that amount and attach the proof. Resist the temptation to round up, to bundle vague charges, or to add a cushion for inconvenience. The generator on this page keeps your arithmetic honest by summing only the amounts you enter, but the reasonableness of each amount is a judgment you must make against real documentation.

Interest, Holding, and Returned Refunds

Colorado’s statewide statute does not impose a general interest requirement on residential security deposits, though a landlord should always check for any local ordinance in the specific municipality, since a handful of jurisdictions add their own rules on top of state law. The deposit is the tenant’s money held in trust for the performance of the lease, and the cleanest practice is to keep it available and untouched until the accounting is complete. Commingling a deposit with operating funds invites both practical and legal problems if a dispute arises.

The 2026 amendments also addressed the awkward situation where a refund check is sent but comes back undelivered or uncashed. When that happens, the landlord is expected to hold the funds rather than treat the tenant’s money as forfeited, and to disburse it promptly on the tenant’s later request within a short statutory window. The takeaway is simple: a returned refund does not end your obligation. Keep the funds segregated, document your delivery attempt, and be ready to pay when the tenant surfaces with a valid address.

Change of Ownership and the 60-Day Transfer Rule

Deposits do not evaporate when a property changes hands. When a landlord’s interest in the premises ends — through a sale, a transfer, or a foreclosure — the deposit obligation must move with the property. The 2026 amendments set a sixty-day window for transferring or returning deposits in that scenario, so that a departing owner cannot leave tenants stranded and an incoming owner knows the clock is running. A landlord buying an occupied building should confirm in writing exactly which deposits are being transferred and in what amounts, because the new owner generally inherits the return obligation to the sitting tenants.

This matters at the return-letter stage because a tenant’s deposit history may span more than one owner. If you took over a building mid-tenancy, base your deductions only on damage that exceeds the condition documented when that tenant moved in under the prior owner, not on the building’s overall age. Preexisting conditions from before your ownership are still preexisting conditions, and charging for them is the same unlawful deduction the statute forbids.

If the Tenant Disputes: Small Claims and Beyond

Most deposit disputes that reach a courtroom land in small claims court, where the process is designed to be navigable without a lawyer. Before a tenant can pursue treble damages, they must serve the seven-day written notice of intent to sue, which is the landlord’s final chance to return a wrongly withheld amount and cap the exposure. A landlord who ignores that notice and then loses can face three times the wrongfully withheld sum plus the tenant’s reasonable attorney fees and court costs — a total that can dwarf the original deduction.

In any such action, the burden is on the landlord to prove that a deduction was lawful. That is why the paper trail assembled through this letter, the itemized worksheet, the move-out walk-through, and dated photographs is not busywork; it is the evidence that decides the case. A landlord who can produce an on-time, itemized statement backed by receipts almost never has to litigate, because the tenant can see the deduction is defensible. Understanding the wider set of landlord obligations, including the Colorado habitability rules that can surface as counterclaims, helps you avoid walking into a dispute you did not anticipate.

Frequently Asked Questions: Colorado Deposit Returns FAQ

How long does a Colorado landlord have to return a deposit?

One month after the lease terminates or the tenant surrenders the premises, whichever is last, unless the written lease specifies a longer period up to sixty days (C.R.S. § 38-12-103(1)).

What if I miss the deadline by a day?

Under subsection (2), a late statement forfeits all right to withhold, so you must return the entire deposit even if some deductions were legitimate.

How bad are the penalties?

Willful over-withholding exposes you to treble damages plus reasonable attorney fees and court costs under subsection (3).

Can I charge for repainting or new carpet?

Only in narrow circumstances where the damage is substantial and exceeds normal wear; carpet replaced within the prior ten years carries a specific restriction under the 2026 amendments.

What documentation do I need to keep?

Photographs, inspection forms or reports, receipts, invoices, or estimates — and you must provide them within fourteen days if the tenant asks.

Do I have to use certified mail?

The statute does not require it, but certified mail with return receipt is the simplest way to prove you met the deadline.

How much deposit can I collect in the first place?

Colorado limits a residential security deposit to no more than two months rent and a refundable pet deposit to no more than three hundred dollars; verify the current cap for your situation.