The clock ran out. Now you file.
Colorado landlords get one month. That's the statutory window under Colo. Rev. Stat. § 38-12-103 to either put your deposit in the mail or hand you a written accounting of every deduction. If that month passed without a refund and without a written itemization, your landlord is no longer in a gray area. They're in violation of Colorado law, and the remedies are specific: the withheld amount, 12% annual interest on every dollar wrongfully kept, and reasonable attorney's fees if it goes to court.
Colorado small claims is the right venue for most deposit disputes. The $7,500 jurisdictional cap covers the principal balance on almost every residential tenancy in the state, plus interest. Attorneys aren't required. Judges see these cases constantly. The rules are designed so a tenant who knows the statutes and organizes their evidence walks in with a real shot at winning.
This page covers the filing process from calculating your claim through collecting the judgment.
What Colorado's security deposit statutes actually require
Three statutes govern residential security deposits in Colorado, and knowing all three matters when you're building a small claims case.
Colo. Rev. Stat. § 38-12-103 sets the refund obligation. Within one month of the tenancy ending, the landlord must return the deposit in full or mail it to the forwarding address you provided. That clock is triggered by two things happening together: you vacating the unit and you providing a forwarding address. If you never provided a forwarding address, the landlord can argue the clock hasn't started. Always give a forwarding address in writing when you move out.
Colo. Rev. Stat. § 38-12-104 governs what must accompany any partial refund or full withholding. If the landlord is keeping any portion of the deposit, they must deliver or mail an itemized written statement explaining exactly what was deducted and why. Vague line items like "damages" or "cleaning" without amounts or supporting rationale don't satisfy the statute. The itemization must be received within the same one-month window.
Colo. Rev. Stat. § 38-12-105 is where the landlord's exposure lives. Any wrongful withholding makes the landlord liable for the withheld amount plus 12% annual interest accruing from the date of the violation. A willful violation adds recoverable attorney's fees. Colorado does not impose a multiplier penalty the way California does with its 2x bad-faith damages, but 12% annual interest compounding on a significant deposit adds up fast, and the prospect of paying your attorney's fees as well is often what moves landlords off the position they've taken.
How long you have to file, and why you shouldn't wait
Colorado's statute of limitations on a written lease claim is generally three years under Colo. Rev. Stat. § 13-80-101, and most residential tenancy disputes fall within that window. For month-to-month agreements or oral leases, a shorter limitations period may apply, so don't plan to the outer edge of the clock.
More practically: interest accrues from the date of the violation, not the date you file. That 12% annual rate means your claim is growing every month the landlord hasn't paid. Filing sooner rather than later has two effects. First, you're asking a judge to award you more in interest. Second, the landlord's motivation to settle before the hearing increases as the interest meter runs.
If you haven't yet sent a demand letter and it's been less than two months since you moved out, do that first. Send a Colorado demand letter for your withheld deposit before filing in court. About 85% of Colorado tenants who send a properly cited demand letter get paid without ever walking into a courthouse. Court is the right move when that letter has already gone out and the deadline has passed with no response.
Calculating the exact amount to sue for
Your small claims complaint needs a specific dollar figure. Judges won't calculate it for you, and rounding up without support undermines credibility. Here's how to build the number.
Start with the withheld principal. If your deposit was $1,800 and the landlord returned $400 with a deficient itemization, your principal claim is $1,400. If they returned nothing and sent no statement, your principal is the full deposit amount.
Add the interest. Under § 38-12-105, the rate is 12% annually on the wrongfully withheld portion. Calculate from the date the one-month window expired. On a $1,400 principal claim that's been sitting for eight months, that's roughly $112 in accrued interest at the time of filing, with more accruing daily until judgment.
Add your filing and service costs. Colorado small claims filing fees are modest and get added to the judgment when you win. Keep every receipt.
Attorney's fees are different. You can note in your complaint that you're reserving the right to request attorney's fees under § 38-12-105 if you retain counsel, but most small claims filers don't have an attorney at the initial hearing. The fee-shifting provision is more relevant if the case escalates to a county court civil action.
Calculator
What you may be owed
Estimate only. Uses your state's return window and bad-faith multiplier. Not legal advice.
Where to file in Colorado
Colorado small claims cases are filed in County Court, not district court. The county you file in is the county where the rental property is located, not where you currently live. If you've relocated across the state, you're still filing in the county covering the rental address.
Colorado has 64 counties, each with its own County Court. The Colorado Judicial Department's website lists the clerk's office, hours, and filing procedures for every county. Some accept online filings through the state's eFiling system; others require paper submissions in person. Check before you show up.
The forms you'll need are standardized statewide. The core document is the Small Claims Complaint form (JDF 250), which asks for the parties' names and addresses, the basis for the claim, and the amount you're seeking. You'll also need a Summons form (JDF 251) that the court will issue once you file. Bring two copies of everything: one for the court's file and one you'll keep.
Filing fees in Colorado County Court small claims run from roughly $31 for claims under $500 up to around $55 for claims in the $500 to $7,500 range. Verify the current fee schedule with the specific county clerk before filing, as these numbers update periodically.
Filing and serving your landlord
After you complete the JDF 250 and pay the filing fee, the court clerk issues a summons. That summons, along with a copy of your complaint, must be served on the landlord before the hearing. Colorado Rule of Civil Procedure 504 governs small claims service, and getting it right is not optional. A defective service means the hearing gets postponed.
For individual landlords, personal service by a process server or the county sheriff's civil division is the most reliable method. The sheriff typically charges around $40 to $60 per service attempt. Process servers are often faster, especially if the hearing date is close.
For corporate landlords or LLCs (common with property management companies), service can be made on the company's registered agent. Look up the registered agent name and address through the Colorado Secretary of State's business search at sos.colorado.gov. If the registered agent address is out of county, note that service by mail to a registered agent is permitted in some circumstances under Colorado procedure.
Once service is completed, the person who served the papers files a Return of Service with the court. That document must be in the court file before the hearing date. Without it, the judge may continue the hearing, which delays your money.
What to bring to the hearing
Colorado small claims hearings are short. A judge may give each side ten minutes. Evidence that requires a long verbal explanation isn't evidence at that point. It's a liability. Organize everything so the judge can absorb it at a glance.
Bring the following, in this order:
Your lease or rental agreement, signed and dated by both parties. This establishes the deposit amount, the rental period, and any lease-authorized deduction provisions.
Proof that you paid the deposit. A canceled check, bank transfer record, or written receipt. If you paid cash and the landlord gave you a hand-written receipt, bring that.
Your forwarding address notice. A text, email, or handwritten note you sent to the landlord giving your new address when you moved out. This matters because the one-month clock under § 38-12-103 is tied to receiving your forwarding address.
Move-in and move-out documentation. Photos with timestamps or date-stamped video. A move-in checklist signed by both parties is especially strong. If you have none of this, a written statement explaining the condition at each point is better than nothing.
The demand letter you sent before filing. Bring the letter itself, your USPS Certified Mail tracking number, and the delivery confirmation printout. Courts respond well to tenants who followed the statutory process and gave the landlord a written opportunity to resolve before filing.
The landlord's response (or the absence of one). If they sent an itemized statement, bring it. If that itemization is deficient, be ready to explain why. If they sent nothing, the empty mailbox is itself your exhibit.
Any repair estimates that contradict the landlord's claimed deductions. A written bid from a licensed contractor showing a lower actual repair cost is direct evidence that the landlord's deduction was inflated.
Print three copies of every document: one for you, one for the judge, one for the landlord.
What to expect at the hearing
Colorado County Court small claims hearings run efficiently. When your case is called, you'll state your name and the amount you're seeking. As the plaintiff, you speak first. Walk the judge through the timeline: deposit paid on this date, tenancy ended on this date, forwarding address provided on this date, nothing received as of thirty-one days later.
Cite the statutes. You don't need to read them aloud, but mention them by number. "Under § 38-12-103, the landlord had one month from when I vacated and provided my forwarding address. That deadline passed on this date with no refund and no itemization." Judges in Colorado County Court see deposit cases every week. You're not educating them on the law. You're giving them the record they need to rule in your favor.
After you present your evidence, the landlord has their turn. They'll argue either that the deductions were valid or that the statement was mailed on time. Your move-in photos and the USPS tracking data are your two most effective counter-documents.
The judge may rule from the bench or take the case under submission. In submission, a written decision arrives by mail within a few weeks.
If the landlord still hasn't paid after you demand
If you haven't yet sent a written demand before coming to this page, start there. Send a Colorado demand letter for your withheld deposit first, cite the statute, name the 12% interest penalty, and give the landlord 14 days to respond. Most pay at that stage, which means no court date, no filing fee, and no hearing.
Collecting on a Colorado small claims judgment
Winning the judgment is step one. If the landlord doesn't write a check within a few weeks, you'll need to use Colorado's post-judgment collection tools to enforce it.
An Abstract of Judgment filed in the county where the landlord owns property converts your judgment into a lien against that real estate. For landlords who own investment properties, this is often enough on its own. A lien on a rental property interferes with every future sale or refinance until the judgment is satisfied.
A Writ of Execution authorizes the sheriff to levy the landlord's bank accounts or seize non-exempt personal property up to the judgment amount. You'll need to know the landlord's bank to make this effective. Sometimes a few days of discovery through the court after judgment can identify that information.
Earnings garnishment is available if the landlord is also employed. Colorado's garnishment rules limit what percentage of disposable income can be garnished in any given pay period, but the paperwork starts moving money.
Colorado judgments carry post-judgment interest at the rate established under Colo. Rev. Stat. § 5-12-102, currently 8% annually, in addition to any pre-judgment interest already awarded. Every month the landlord delays paying, the number grows.
Sources & further reading
Primary sources
We draft from authoritative statutes and state-court self-help guidance. Every article on Sue.com links to the primary source so you can verify the citation yourself.