Colorado Security Deposit Small Claims: How to Sue Your Landlord

Colorado's Security Deposit Return Deadlines

For conduct on or after January 1, 2026, C.R.S. § 38-12-103 gives your landlord 30 days after the later of lease termination or surrender of the premises to return your security deposit, unless the lease agreement specifies a longer period, not to exceed 60 days. If the landlord has actual cause to retain part of the deposit, the landlord must provide a written statement giving the exact reasons and return the balance.

The default deadline is 30 days. A lease agreement may set a longer period, up to 60 days. If the agreement is silent on the timeline, the 30-day deadline applies.

If the landlord fails to comply with the return and statement requirements or wrongfully withholds the deposit, the landlord forfeits the right to withhold any portion under this section.

The 7-Day Demand Letter

For conduct on or after January 1, 2026, before you can bring a treble-damages action, Colorado law requires you to notify the landlord of your demand for return and intent to file at least 7 days before filing. The landlord must fail to return the deposit or the withheld amount within 7 days after receiving the notice for the treble-damages action to be available. State the exact amount withheld and your intent to file in small claims court.

Send it by certified mail with return receipt requested — the signed green card is your proof of delivery and starts the 7-day clock. Keep a copy of the letter, the mailing receipt, and the return card.

If the landlord does not return the deposit or the withheld amount within 7 days after receiving the notice, you may file the treble-damages claim.

Treble Damages: Up to 3x Your Deposit

Under C.R.S. § 38-12-103, wrongful retention can make a landlord liable for treble damages — three times the amount wrongfully withheld. For a $2,500 deposit that is up to $7,500, the small claims principal limit.

For conduct on or after January 1, 2026, treble damages are not automatic. To bring the statutory treble-damages action, a tenant must give the demand and notice of intent at least 7 days before filing, and the landlord must fail to return the deposit or withheld amount within 7 days after receiving it. The landlord bears the burden of proving that the withholding was not wrongful and that the landlord complied with the statute.

File a treble-damages claim within 1 year of moving out. A claim for the actual deposit, court costs, and attorney's fees has a 6-year filing period from moving out.

How to File the Claim

Pick the right county. For security deposit cases, you can file in the county where the rental property is located or the county where the landlord lives or has a business office.

Name the right party. If your landlord is a property management company or LLC, search the Secretary of State database at coloradosos.gov for the exact registered entity name and the Registered Agent's address. Suing "ABC Apartments" instead of "ABC Property Management LLC" can make your judgment unenforceable.

Complete Form JDF 250. State the deposit amount withheld and request treble damages if applicable. The filing fee is $55 for claims over $500 (which covers most deposit disputes at treble value).

Serve the defendant at least 15 calendar days before trial through the county sheriff, a private process server, a disinterested adult, or court clerk certified mail.

What Evidence to Bring

Organize three identical physical sets for your hearing:

• Your lease agreement
• Move-in and move-out inspection checklists or photos
• Proof you paid the deposit (bank statement, canceled check, receipt)
• The 7-day demand letter, certified mail receipt, and signed return card
• Any communications with the landlord about the deposit
• The landlord's itemized deduction statement (if they provided one) along with evidence that the deductions were unreasonable
• Photos of the unit's condition at move-out, timestamped

Label each document as an exhibit (Exhibit 1, 2, 3, etc.) and bring three copies — one for the judge, one for the landlord, one for yourself.

What the Landlord Can Deduct

For conduct on or after January 1, 2026, a landlord may retain reasonable amounts for unpaid rent, unpaid utility charges, other lawful charges listed in the lease, or necessary repairs for damage or defective conditions that exceed normal wear and tear and did not preexist the tenancy. A landlord cannot charge for normal wear and tear or preexisting damage.

For full-unit carpet replacement, the law requires substantial and irreparable damage beyond normal wear and tear that did not preexist the tenancy; carpet not replaced with new carpet in the 10 years before termination or surrender cannot be deemed substantially and irreparably damaged. Repainting the entire interior requires substantial damage throughout the walls or ceiling beyond normal wear and tear that did not preexist the tenancy. In either case, the landlord may retain only the minimum amount needed to repair the damaged area.

They cannot deduct for normal wear and tear — faded paint, worn carpet from regular use, minor scuffs. If the deduction list includes charges like "repaint entire unit" after a multi-year tenancy, that is often challengeable.

After the Hearing

If the judge rules in your favor, the landlord owes you the judgment amount. The court does not collect it — if the landlord does not pay voluntarily, you may need to pursue garnishment or other collection methods through separate proceedings.

Security deposit claims are the most structured type of Colorado small claims case, with specific statutory prerequisites that must be followed in order. The Colorado small claims filing guide walks through the entire timeline from demand letter to hearing day.

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