Colorado security deposit rules
How Colorado deposit returns generally work
Colorado generally requires landlords to return the security deposit, or provide a written statement of the exact reasons for any amount kept along with the balance, within 30 days after the lease ends or the tenant surrenders the rental, whichever is later, unless the lease sets a longer period of no more than 60 days. Normal wear and tear and preexisting conditions are not permitted deductions, and C.R.S. § 38-12-103 describes potential treble damages a court may consider for wrongful retention after the tenant gives at least seven days’ notice of a demand and intent to file legal proceedings.
C.R.S. § 38-12-103(1)(a) generally requires return of the deposit within 30 days after the lease terminates or the premises are surrendered, whichever occurs last, unless the lease specifies a longer period of no more than 60 days.
A landlord that retains any portion must provide a written statement listing the exact reasons; § 38-12-103(1)(b) limits retention to unpaid rent, unpaid utilities, other lawful charges listed in the lease, and repairs for damage beyond normal wear and tear that did not preexist the tenancy.
Under § 38-12-103(3), a tenant seeking treble damages must notify the landlord of the demand and of an intention to file legal proceedings at least seven days before filing.
Watch your own deadline: C.R.S. § 38-12-103(3) requires notice of your demand and of an intention to file legal proceedings at least seven days before filing, and treble damages are available only if the landlord does not return the deposit within seven days after receiving it. The Colorado letter includes that demand and notice. Send it after the return deadline has passed, keep proof of the date the landlord received it, and avoid delay: case law cited in the official annotations applies a one-year limit to the treble-damages portion.
Check coverage: The 2025 amendments (HB 25-1249) took effect January 1, 2026 and apply to conduct on or after that date; earlier situations may follow the prior version, which used a one-month period and a willful-retention standard. Separate rules apply under the gas-hazard procedure in § 38-12-104 and for terminations under § 38-12-402, and local ordinances may add requirements.
These are general summaries, not conclusions about your situation. Review the linked official text and obtain legal advice when needed.
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