Colorado Landlord-Tenant Law 2026 Complete Guide: CRS §38-12 Security Deposits, 10-Day Notice, FED Eviction, HB 21-1121 Habitability, and No Rent Control

1. Colorado Landlord-Tenant Law Framework — CRS Title 38 + 2021 Reforms

Colorado does not have a single unified residential landlord-tenant code equivalent to California's Civil Code or Washington's RLTA. Instead, the state's residential tenancy law is spread across several parts of the Colorado Revised Statutes:

• CRS Title 38, Article 12 — the core landlord-tenant statute: security deposits (§38-12-101 et seq.), habitability (§38-12-501 et seq., added by HB 21-1121), prohibited lease provisions (§38-12-105), bed bug disclosure (§38-12-517), and rent increase notifications.
• CRS Title 13, Article 40 — the Forcible Entry and Detainer (FED) statute governing eviction procedures.
• CRS Title 38, Article 12, Part 2 — termination and notice provisions for periodic tenancies.

1a. The 2021 reform package

Two 2021 statutes — enacted during the same legislative session and signed by Governor Jared Polis — fundamentally changed the day-to-day compliance obligations for Colorado landlords:

• SB 21-173 (Eviction Legal Assistance Act, effective January 1, 2022): Extended the nonpayment-of-rent notice period from 3 days to 10 days; extended the month-to-month tenancy termination notice from 10 days to 21 days; capped late fees; capped application fees at actual screening costs; added a list of prohibited lease provisions; created enhanced anti-retaliation protections.
• HB 21-1121 (Residential Tenants Health and Safety Act, effective January 1, 2022): Created the CRS §38-12-501 et seq. warranty of habitability framework; codified the 24-hour entry notice requirement; expanded repair-and-deduct and rent withholding remedies; added habitability-based lease termination rights; strengthened anti-retaliation protections for tenants who exercise habitability rights.

These reforms made Colorado substantially more tenant-protective than it had been before 2022. Landlords who learned Colorado eviction procedure before 2022 — or who use lease forms predating 2021 — are likely out of compliance on at least some provisions. This guide covers the current law as of September 2026.

1b. Properties generally covered

CRS Title 38, Article 12 applies broadly to residential rental agreements in Colorado — single-family homes, condominiums, apartments, mobile homes, and accessory dwelling units. Exceptions include:

• Transient occupancy at hotels, motels, and licensed lodging facilities;
• Occupancy by a purchaser who is in possession under a contract for sale;
• Institutional occupancy (dormitories, assisted living facilities, certain transitional housing);
• Agricultural worker housing covered under separate provisions.

The FED eviction statute (CRS §13-40-101 et seq.) applies statewide regardless of property type.

2. Security Deposits — CRS §38-12-101 et seq.

Colorado's security deposit statute is found at CRS §38-12-101 through §38-12-104. The key provisions are the return deadline and the 3× wrongful-withholding penalty — both of which significantly exceed what landlords may expect from a state often perceived as relatively landlord-friendly.

2a. No deposit cap

Colorado has no statutory maximum on the security deposit amount. The landlord and tenant may agree to any deposit sum in the lease. In practice, Denver's competitive rental market typically produces deposits of one to two months' rent; the Fort Collins and Boulder markets, heavily influenced by Colorado State University and CU Boulder respectively, often see one month's deposit. The absence of a cap means Colorado landlords can collect larger deposits on higher-risk applicants without running afoul of state law — a flexibility that does not exist in California (capped at 1 month), Arizona (1.5 months), or North Carolina (2 months).

2b. Return deadline — 30 days by default, 60 days maximum

CRS §38-12-103(1) requires the landlord to return the security deposit within one month (30 days) after lease termination or surrender and acceptance of the premises, whichever occurs last. The lease may provide for a longer period, but Colorado caps the maximum return period at 60 days even by written agreement. A lease provision purporting to allow a 90-day or open-ended return window is unenforceable under Colorado law.

The trigger date for the return clock is the later of:

• The formal termination date of the lease; or
• The date the tenant surrenders the premises and the landlord (or landlord's agent) accepts them — typically the date keys are returned and the landlord inspects or acknowledges possession.

When these two dates differ — for example, a tenant who leaves 5 days before the lease end date — the later date controls. Landlords who adopt the practice of completing the move-out inspection on the final key-return day and beginning the return clock from that moment are in the most legally defensible position.

2c. Itemized statement for deductions

If the landlord retains any portion of the security deposit, the landlord must provide the tenant with a written itemized statement of the specific deductions made, the dollar amount of each, and the justification (e.g., "unpaid April rent — $1,200," "carpet replacement — dog urine damage beyond normal wear — $650"). The itemized statement must accompany the return of any remaining balance, and both must be provided within the applicable deadline (30 days or lease-specified period up to 60 days).

Allowable deductions under CRS §38-12-103(1) include:

• Unpaid rent through lease termination;
• Costs to restore the premises to their condition at the commencement of the tenancy, excluding ordinary wear and tear;
• Compensation for the tenant's failure to give adequate notice under CRS §38-12-202;
• Other amounts specified in the lease and permitted by statute.

Normal wear and tear — minor scuffs on walls, light carpet wear in high-traffic areas, faded paint — is not deductible. Colorado courts have consistently held that the landlord bears the burden of demonstrating damage beyond wear and tear through documentation such as move-in/move-out photos with timestamps.

2d. The 3× wrongful withholding penalty

CRS §38-12-103(3) creates Colorado's powerful wrongful-withholding remedy:

"If the landlord fails to return the security deposit within the period specified in subsection (1) of this section, or if the landlord retains any portion of the security deposit in an amount that is determined to be in excess of what the landlord is entitled to retain, the landlord shall be liable in any action brought by the tenant for the amount of the wrongfully withheld deposit plus reasonable attorney's fees and costs. In addition, if the court finds that the landlord acted in bad faith, the landlord shall be liable to the tenant for three times the amount wrongfully withheld plus attorney's fees and costs."

The practical consequence: a landlord who wrongfully retains $1,000 of a security deposit after a bad-faith finding faces a judgment of $3,000 plus the tenant's attorney fees. Even without a bad-faith finding, the landlord owes the wrongfully withheld amount plus attorney fees. The cost of defending a deposit dispute often exceeds the value of the disputed deductions — making documentation and timely return the economically rational choice for every Colorado landlord.

2e. No separate account requirement

Unlike Massachusetts (MGL c.186 §15B — separate interest-bearing account required within 30 days), New York (RSL requirements for stabilized-unit deposits), or New Jersey (N.J.S.A. 46:8-19 — separate interest-bearing account + annual interest payment), Colorado does not require landlords to hold security deposits in a separate bank account. The deposit may be commingled with operating funds. Colorado also does not require the landlord to pay interest on the deposit.

However, maintaining a dedicated security deposit account is strongly recommended as a best practice: commingling makes it harder to demonstrate the deposit was not spent, and a dedicated account prevents disputes about how much remains when the tenant vacates. Many Colorado property managers maintain escrow accounts for deposits as a matter of professional practice even though statute does not mandate it.

3. Rent Increases — No Cap (CRS §38-12-301, SB 23-184, TABOR)

Colorado has no rent control law, and as of September 2026, no Colorado city has an active rent stabilization ordinance. The regulatory history is more complex than most no-rent-control states — a 1981 preemption statute partially modified in 2023, against the backdrop of the nation's most restrictive constitutional fiscal limitation — but the practical result for landlords in 2026 is simple: raise rent by any amount with proper advance notice.

3a. CRS §38-12-301 — the 1981 preemption

Colorado Revised Statutes §38-12-301, enacted in 1981 and signed by Governor Richard Lamm, declared:

"The imposition of rent control on private residential housing units is a matter of statewide concern. No county, city, town, or other political subdivision of the state shall enact any ordinance or resolution which would control rents on private residential property."

This placed Colorado alongside Texas (1981), Arizona (1981), and Nevada (1977) in the early wave of states that declared rent control a statewide matter to prevent local experimentation. Colorado's version was particularly strong: the "statewide concern" declaration gave the preemption constitutional grounding under Colorado's home-rule doctrine, making it harder for Denver or Boulder (both home-rule cities with broad local authority) to argue their charter powers override the state prohibition.

3b. SB 23-184 (2023) — the partial modification

In 2023, Colorado's Democratic-controlled legislature enacted SB 23-184, which amended §38-12-301 to modify the preemption framework. The legislation created potential authority for municipalities to enact local rent stabilization measures under specified conditions — making Colorado the only 1981-vintage preemption state to legislatively change course in the 2020s.

Critically, SB 23-184 did not itself create rent control anywhere. Each Colorado municipality that wishes to exercise the newly available authority must separately enact its own ordinance through its own legislative process. As of September 2026:

• Denver City Council — has NOT enacted a rent stabilization ordinance;
• Boulder City Council — has NOT enacted a rent stabilization ordinance, despite being one of the most politically progressive home-rule cities in the Rockies;
• Fort Collins City Council — has NOT enacted a rent stabilization ordinance;
• Colorado Springs City Council — has NOT enacted a rent stabilization ordinance.
• No other Colorado municipality has enacted stabilization under SB 23-184.

The modified §38-12-301 stands as the nation's most legally interesting rent control preemption: a strong 1981 prohibition, partially opened by 2023 legislation, yet still functioning as a practical bar because no city has moved to pass an ordinance. For more detail on the preemption history, TABOR, and what SB 23-184 actually changed, see: Colorado C.R.S. §38-12-301 Rent Control Preemption 2026 →

3c. TABOR — the constitutional overlay

Colorado's Taxpayer's Bill of Rights (TABOR, Art. X §20 of the Colorado Constitution, approved by voters in November 1992) adds a second constitutional dimension to any hypothetical future rent stabilization program. TABOR requires voter approval for any new tax, fee increase, or government revenue measure that exceeds specific growth limits. A rent stabilization program requiring landlord registration fees, administrative fees, or a rent board operating budget could potentially be characterized as a "new fee" requiring a citywide ballot measure before implementation.

This creates an electoral hurdle beyond just getting City Council to pass the ordinance: Denver, for example, would potentially need both a Council vote (to authorize the program) and a separate voter-approval election (for associated fees). No TABOR challenge to a Colorado rent stabilization ordinance has ever been litigated because no such ordinance has been enacted. But the theoretical barrier is real, and several Colorado cities have cited TABOR complexity as a reason for not advancing stabilization proposals.

3d. Notice requirement for rent increases

While Colorado imposes no cap on the amount of a rent increase, proper advance notice must be given. After SB 21-173 (2021), the notice periods applicable to month-to-month tenancies changed. For month-to-month tenancies, a rent increase requires the same notice as a termination: 21 days' written advance notice (CRS §38-12-202(1), as amended). The notice should specify the new rent amount and the effective date.

For fixed-term leases, the rent amount is set by the lease and cannot be increased mid-term unless the lease explicitly provides a mechanism for mid-term adjustments (rare in residential leases). Increases at fixed-term renewal are governed by the renewal agreement terms — no statutory floor or ceiling applies.

For city-specific rent increase guidance: Denver rent increase 2026 → | Boulder CO rent increase 2026 → | Fort Collins CO rent increase 2026 →

4. Notice Requirements — SB 21-173 Changes Landlords Miss

SB 21-173 (2021) changed multiple notice periods simultaneously, effective January 1, 2022. Landlords who relied on Colorado eviction forms or procedures from before that date are likely using legally defective notices. This is the single most common compliance failure for Colorado landlords in 2026.

4a. Month-to-month termination notice — 21 days (was 10 days before 2022)

CRS §38-12-202(1), as amended by SB 21-173, requires either party wishing to terminate a month-to-month tenancy to give the other party at least 21 days' written notice before the end of the rental period. Before SB 21-173, the required notice for month-to-month termination was only 10 days. Many Colorado landlords are still using 10-day termination notices — a defect that invalidates the notice and can result in case dismissal if the tenant raises it.

The 21-day notice is effective at the end of the rental period following the one in which notice is given. For example, if notice is given on October 14th and rent is due on the 1st of each month, the earliest effective termination date is November 30th (the end of the next full rental period). If given on October 5th, the tenancy can end October 31st — if at least 21 days remain in that rental period from the notice date (October 5 to October 31 = 26 days; satisfies the 21-day minimum).

4b. Fixed-term lease expiration

Colorado does not require the landlord to give advance notice before a fixed-term lease expires by its own terms. However, at the natural expiration of a fixed-term lease, if the tenant holds over and the landlord accepts rent without executing a new lease, the tenancy converts to month-to-month by operation of law. The landlord must then give the full 21-day notice to terminate the resulting month-to-month tenancy.

4c. Nonpayment of rent — 10-day Demand for Payment (was 3 days before 2022)

CRS §13-40-104(1)(d), as amended by SB 21-173, requires the landlord to serve the tenant with a written 10-Day Demand for Payment before filing any eviction action for nonpayment of rent. The demand must state:

1. The amount of rent owed;
2. That the tenant has 10 days to pay the full amount or vacate the premises;
3. That failure to pay or vacate will result in commencement of eviction proceedings.

If the tenant pays the full amount within 10 days, the demand is cured. The tenant may cure a nonpayment demand as many times as it arises in Colorado — there is no "cure-only-once-per-year" limit as exists in Tennessee or California. The 10-day period is the biggest practical change from the prior 3-day demand. Landlords who continue serving 3-day nonpayment demands face dismissal if the tenant raises defective notice as a defense at the FED hearing.

4d. Lease violation — 10-day notice to cure

For non-monetary lease violations (e.g., unauthorized pet, unauthorized occupant, lease terms violation), the landlord must serve the tenant a written 10-Day Notice to Cure or Quit. The notice must describe the specific violation. If the tenant remedies the violation within 10 days, the tenancy continues. As with the nonpayment demand, this period was extended from a shorter period by SB 21-173.

4e. Material breach — 3-day unconditional quit

For certain serious and incurable breaches, the landlord may serve a 3-Day Notice to Quit without offering a cure period. Under CRS §13-40-104, incurable grounds include:

• Substantial damage to the premises or property;
• Criminal activity on or near the premises;
• Conduct that creates a nuisance or substantially interferes with other tenants;
• A second identical violation within 6 months of the first curable violation;
• Behavior that endangers the health or safety of other residents or neighbors.

The 3-day unconditional quit was not extended by SB 21-173 — it remains at 3 days for these serious grounds.

4f. Prohibited lease provisions under SB 21-173

CRS §38-12-105, as amended by SB 21-173, prohibits certain provisions in Colorado residential leases. A lease clause that purports to:

• Waive the tenant's right to a judicial hearing before eviction;
• Authorize the landlord to evict through self-help (changing locks without court order);
• Charge late fees exceeding the amounts permitted by CRS §38-12-105(1)(f);
• Charge application fees exceeding actual screening costs;
• Waive the tenant's right to habitable conditions under CRS §38-12-501 et seq.;
• Require the tenant to pay the landlord's attorney fees in all cases (one-sided fee-shifting clauses);

...is void and unenforceable under Colorado law, even if the tenant signed the lease containing such provisions. A landlord who attempts to enforce a prohibited provision may face additional liability under HB 21-1121's anti-retaliation provisions.

5. Eviction — Forcible Entry and Detainer (CRS §13-40-101 et seq.)

Colorado residential evictions proceed through the Forcible Entry and Detainer (FED) procedure, codified at CRS §13-40-101 through §13-40-137, heard in Colorado's County Courts. The FED process was modified by SB 21-173 and is the primary tool for removing holdover and defaulting tenants.

5a. Step-by-step FED process

1. Serve the required statutory notice. For nonpayment of rent: 10-Day Demand for Payment (CRS §13-40-104(1)(d)). For lease violation: 10-Day Notice to Cure or Quit. For incurable breach: 3-Day Notice to Quit. For month-to-month no-cause termination: 21-Day Notice to Vacate (CRS §38-12-202). Serve by personal delivery to the tenant, or — if the tenant cannot be found — by posting on the main entry door and mailing by first-class mail.
2. Wait for the notice period to expire without compliance. If the tenant pays (for nonpayment) or cures (for breach) within the notice period, the eviction cannot proceed and the tenancy continues. If there is no compliance, proceed to filing.
3. File the FED complaint at the county court. File at the County Court in the county where the property is located. Include the complaint, the notice served, and a copy of the lease. Filing fees: Denver County Court ~$95–$175; El Paso County Court (Colorado Springs) ~$85–$150; Boulder County Court ~$95–$160; Larimer County Court (Fort Collins) ~$85–$150; Arapahoe County Court (Aurora/Englewood) ~$85–$165. Fees vary by county and may have been updated.
4. Service of process on the tenant. After filing, the court issues a Summons. The Summons and Complaint are served on the tenant by the county sheriff or a licensed process server. The court date is set within approximately 7–14 days of filing.
5. FED hearing at County Court. Both parties appear before a judge or magistrate. Rules of evidence apply but proceedings are generally accessible to pro se litigants. The landlord presents: the lease, the notice served, documentation of the default (rent ledger for nonpayment; photos or communications for breach), and proof of service of the notice. If the landlord proves its case, the court enters a Judgment for Possession in the landlord's favor.
6. Writ of Restitution. After the judgment, if the tenant does not vacate voluntarily, the landlord requests a Writ of Restitution from the court clerk. The Writ authorizes the county sheriff to remove the tenant and restore possession to the landlord.
7. Sheriff executes the lockout. The county sheriff's office serves the Writ on the tenant and schedules the lockout. In Colorado's major jurisdictions, sheriff lockouts typically occur within 48–72 hours of the Writ being received. The sheriff supervises the removal of occupants; the landlord then changes the locks and re-takes possession. The landlord must follow Colorado's abandoned property rules for any belongings left behind.

5b. Timeline comparison

5c. Self-help eviction is prohibited

Colorado law strictly prohibits self-help eviction. The landlord may not — without a court order — change locks, remove doors or windows, remove the tenant's belongings, shut off utilities, or otherwise interfere with the tenant's peaceful possession of the premises. Attempting self-help eviction exposes the landlord to liability under CRS §38-12-510 (added by HB 21-1121): the tenant may recover actual damages, statutory damages, and reasonable attorney fees. In addition, the self-help acts themselves may constitute criminal trespass. The FED process is streamlined enough that any time "saved" by self-help is vastly outweighed by the legal exposure created.

5d. Court venues by major city

6. Habitability, Repair-and-Deduct, and Anti-Retaliation (HB 21-1121)

Colorado HB 21-1121 (Residential Tenants Health and Safety Act, effective January 1, 2022) created a comprehensive warranty of habitability framework that significantly expanded tenant remedies beyond what existed before 2022. The new provisions are codified at CRS §38-12-501 through §38-12-511.

6a. Warranty of habitability conditions (CRS §38-12-503)

Under CRS §38-12-503, the landlord is required to maintain the residential premises in a fit and habitable condition throughout the tenancy. Specific obligations include:

• Structural soundness — roof, walls, floors, stairs, and foundations kept in safe condition;
• Weatherproofing — all exterior windows, doors, and walls are weather-tight;
• Plumbing — functioning hot and cold running water, working toilets and drains;
• Heating — heating system capable of maintaining at least 68°F during cold weather;
• Electrical — safe wiring and functioning electrical service in compliance with code;
• Pest control — premises free from rodent and insect infestation materially affecting health;
• Common areas — hallways, stairways, laundry, and parking in safe condition (multi-unit buildings);
• Garbage facilities — adequate receptacles and regular removal service;
• Compliance with applicable building, housing, and health codes materially affecting health and safety.

6b. Tenant's notice requirement before remedies

Before exercising any habitability remedy (repair-and-deduct, rent withholding, or termination), the tenant must generally provide the landlord with written notice of the habitability deficiency and a reasonable opportunity to repair. What constitutes "reasonable" depends on the severity: a non-functioning heater in January constitutes an emergency requiring prompt response (typically 24–72 hours); a broken interior door knob may allow 14 days or more. Emergency conditions may justify shorter or no notice periods.

6c. Repair-and-deduct (CRS §38-12-507)

HB 21-1121 significantly expanded Colorado's repair-and-deduct rights. Under CRS §38-12-507, after providing the landlord with written notice of the habitability defect and allowing a reasonable time for repair, the tenant may arrange the repair through a qualified contractor and deduct the cost from rent, subject to the statutory limits. The reform markedly increased these limits compared to the pre-2022 standard.

Tenants exercising repair-and-deduct must:

• Provide written notice of the defect to the landlord;
• Allow reasonable time for the landlord to make the repair;
• Use a licensed, qualified contractor for the work;
• Provide the landlord with receipts and documentation of the repair cost;
• Limit the total deduction to the statutory cap.

6d. Rent withholding and escrow

For more substantial habitability failures — those that materially affect the health or safety of occupants — HB 21-1121 created a formal rent withholding procedure. After written notice to the landlord and an opportunity to cure, the tenant may withhold rent and deposit it into a court-supervised escrow account. The court then determines whether the habitability failure justifies the withheld amount and may award a rent abatement, order repairs, or authorize the escrowed funds to pay for repairs.

The tenant must initiate the escrow procedure promptly and cannot simply stop paying rent without following the statutory steps — an informal rent strike without the escrow procedure gives the landlord grounds to serve a 10-day Demand for Payment and proceed with eviction.

6e. Habitability-based lease termination (CRS §38-12-507(2))

If the habitability deficiency substantially endangers the health or safety of the occupants, and the landlord fails to remedy it after proper notice, the tenant may terminate the lease by giving the landlord 14 days' written notice. This is the "constructive eviction" remedy codified by HB 21-1121. The tenant does not owe rent for any period after vacating pursuant to a valid habitability termination, and may be entitled to a deposit refund and potentially damages.

6f. Anti-retaliation (CRS §38-12-509)

HB 21-1121 codified and strengthened Colorado's anti-retaliation protection. If, within a specified period before a landlord's adverse action (notice to terminate, rent increase, reduction of services, eviction filing), the tenant has:

• Made a complaint to the landlord or a government agency about habitability;
• Exercised repair-and-deduct or escrow rights;
• Filed or threatened to file a legal action;
• Organized with other tenants or participated in a tenant organization;

...a rebuttable presumption of retaliation arises. The landlord must present a legitimate, non-retaliatory justification for the adverse action. If the tenant prevails on an anti-retaliation claim, the court may award actual damages, statutory damages (including up to treble damages for bad-faith retaliation), and attorney fees.

7. Entry Requirements — CRS §38-12-503 and 24-Hour Notice

Colorado HB 21-1121 (2021) formally codified the landlord's entry notice obligation, replacing an earlier common-law standard with a statutory requirement.

7a. 24-hour advance notice required

CRS §38-12-503, as amended by HB 21-1121, requires the landlord to give the tenant at least 24 hours' advance notice before entering the dwelling unit for any non-emergency purpose, including:

• Routine inspections;
• Repairs and maintenance;
• Showing the unit to prospective tenants or buyers;
• Inspection before move-out.

The notice should specify: the intended purpose of the entry; the proposed date; and an approximate time window. Entry must occur at a reasonable hour — generally during normal business hours or by mutual agreement. Colorado's 24-hour standard aligns with California (Civil Code §1954) and Tennessee (TCA §66-28-403). Unlike Washington State (which requires two days' notice for certain showings), Colorado requires a single 24-hour period across all non-emergency entry types.

7b. Emergency entry

In a genuine emergency — fire, flooding, burst pipe, gas leak, or other condition immediately threatening health or safety — the landlord may enter without prior notice. After an emergency entry, the landlord should document what occurred and provide the tenant with written notice of the entry and its purpose promptly after. Repeated claims of "emergency" to avoid the 24-hour notice requirement can itself constitute a violation of the tenant's right of quiet enjoyment.

7c. Tenant's right to deny entry and landlord's remedy

A tenant may not unreasonably deny the landlord access when proper 24-hour notice has been given. Unreasonable denial of entry is a lease violation subject to the 10-day cure notice under SB 21-173. If a tenant persistently refuses lawful entry after proper notice, the landlord may seek a court order authorizing entry. Landlords who enter without proper notice, or who harass tenants through excessive entry demands, may face claims under HB 21-1121's quiet enjoyment and anti-retaliation provisions.

8. Required Disclosures — Bed Bugs, Lead Paint, Move-In Checklist

Colorado has several mandatory disclosure requirements, including one that is unique among most states: a specific statutory bed bug disclosure obligation created in 2022.

8a. Bed bug disclosure — HB 22-1380 (2022), CRS §38-12-517

Colorado HB 22-1380 (2022) created CRS §38-12-517, which requires landlords to make the following written disclosures to prospective tenants at or before lease signing:

1. Known current bed bug infestation: If the unit, common areas, or adjoining units have any known bed bug infestation at the time of the lease.
2. History of infestation within the prior three years: If the unit or adjoining units have had a bed bug infestation within the three years preceding the lease, even if that infestation has been remediated.

Colorado's three-year history disclosure requirement is among the most specific bed bug disclosure statutes in the United States — most states either have no bed bug disclosure requirement or require only disclosure of current known infestations. Failure to make the required bed bug disclosure may allow the tenant to void the lease within a certain period after discovering the omission, or to seek damages for any resulting injury, including costs of treatment, replacement of personal property, and relocation. Landlords should maintain written records of any bed bug inspections, treatments, and remediation to comply with and defend against claims under this statute.

8b. Move-in condition documentation

SB 21-173 (2021) reinforced the importance of move-in condition documentation as part of the deposit deduction defense framework. While Colorado does not have an explicit statutory requirement for a written move-in checklist in the form of some states (Michigan requires a formal inventory — MCL §554.608; Washington requires a written checklist — RCW 59.18.260), the practical consequence of the 3× wrongful withholding penalty makes documentation essential. A written move-in checklist, completed jointly by the landlord and tenant, signed and dated by both, with contemporaneous photographs, is the most effective defense against deposit dispute claims. Colorado Property managers routinely use standardized digital inspection reports with timestamped photos for this purpose.

8c. Lead paint disclosure (federal — 42 U.S.C. §4852d)

For any residential property constructed before January 1, 1978, federal law requires the landlord to:

• Provide the EPA-approved pamphlet "Protect Your Family From Lead in Your Home" (or equivalent) before the lease is signed;
• Complete the EPA Lead-Based Paint Disclosure form disclosing any known lead paint hazards;
• Include a lead paint disclosure clause in the written lease agreement;
• Retain copies of the signed disclosure form for a minimum of three years.

Civil penalty for non-compliance: up to $11,000 per violation. Denver, in particular, has a significant stock of pre-1978 housing — Capitol Hill, the Highlands, Baker, Five Points, and many inner-ring neighborhoods have substantial numbers of pre-1978 rental units where lead paint disclosure is mandatory.

8d. Late fee and application fee limits (SB 21-173, CRS §38-12-105)

SB 21-173 (2021) added restrictions to CRS §38-12-105 that function as disclosure obligations and contractual requirements:

• Late fees: CRS §38-12-105(1)(f), as amended, prohibits late fees that exceed statutory limits. Landlords must disclose the late fee amount in the lease, and the fee must comply with the statutory cap. Charging an excessive late fee is a prohibited practice under §38-12-105.
• Application fees: CRS §38-12-105(1)(g) prohibits application fees in excess of the landlord's actual out-of-pocket costs for tenant screening (credit check, background check). Charging a flat application fee that exceeds actual screening costs is prohibited. The landlord must provide an itemized accounting of screening costs if requested. If no screening occurs, the application fee must be refunded.

8e. HOA rules and common-interest community disclosures

If the rental property is located within a homeowners association (HOA) or common-interest community — common in Denver's condo market and many suburban planned developments — the landlord must provide the tenant with a copy of the applicable HOA rules, regulations, and governing documents before or at lease execution. Colorado's Common Interest Ownership Act (CCIOA, CRS §38-33.3-101 et seq.) imposes obligations on HOAs regarding disclosure; the landlord's disclosure obligation to the tenant flows from the landlord's own obligations to understand and comply with HOA rules. A tenant who violates HOA rules because the landlord failed to disclose them may have a defense to lease breach claims.

9. Fort Carson, Buckley SFB, Peterson SFB, and SCRA Compliance

Colorado hosts four significant U.S. military installations, three of which are in the Colorado Springs metro area and one in Aurora. Military-affiliated tenants represent a substantial and sometimes majority segment of the rental markets near these bases. Colorado landlords in these areas must understand SCRA compliance as a routine aspect of property management, not an occasional exception.

9a. Fort Carson — Colorado Springs / Security-Widefield

Fort Carson (20 miles south of Colorado Springs) is home to the 4th Infantry Division, 10th Special Forces Group (Airborne), 71st Ordnance Group, 43rd Sustainment Brigade, and multiple support units. With approximately 20,000 active-duty soldiers, 10,000 family members, and 8,000+ civilian employees, Fort Carson is the largest employer in the Colorado Springs metropolitan area. The Security-Widefield, Fountain, and Cimarron Hills communities immediately south of Colorado Springs exist primarily to serve the Fort Carson population.

9b. Peterson SFB and Schriever SFB — Colorado Springs East

Peterson Space Force Base (now operating under the Space Force since December 2019) hosts NORAD/NORTHCOM headquarters — the command responsible for aerospace warning, aerospace control, and maritime warning for North America. Approximately 8,500 military, civilian, and contractor personnel work at Peterson. Schriever SFB (25 miles east of Colorado Springs in Falcon, El Paso County) hosts the 50th Space Wing, which controls the GPS satellite constellation; approximately 3,700 personnel. Combined with the United States Air Force Academy (USAFA, northwest of Colorado Springs — ~4,000 cadets, 6,000 faculty/staff), the Colorado Springs metro has among the highest concentrations of military and defense-related rental demand in the American West.

9c. Buckley SFB — Aurora

Buckley Space Force Base (Aurora, Arapahoe County) hosts the 460th Space Wing and multiple intelligence and space operations units. Approximately 3,000 military personnel are assigned to Buckley, contributing meaningfully to Aurora's rental market. The Buckley/Aurora rental market is also shaped by the adjacent University of Colorado Anschutz Medical Campus (30,000+ employees) and the general Denver metro economy.

9d. SCRA early termination right

The Servicemembers Civil Relief Act (SCRA, 50 U.S.C. §3955) gives active-duty military members (Army, Navy, Air Force, Marine Corps, Coast Guard, Space Force, and National Guard/Reserve on federal orders) the right to terminate a residential lease without penalty when they receive qualifying orders. The SCRA termination right applies when a servicemember:

• Receives orders for a Permanent Change of Station (PCS) — any distance;
• Receives orders for deployment to a location outside the continental United States, or more than 35 miles from their current residence, for 90 days or more;
• Is separated or retired from military service.

To exercise the right: the servicemember delivers written notice to the landlord along with a copy of the qualifying orders. The lease terminates 30 days after the first date on which the next monthly rent would be due after the notice is delivered. The landlord may not charge early termination fees, liquidated damages, or re-leasing costs when a valid SCRA termination is exercised.

9e. Practical Colorado Springs and Aurora landlord guidance

Colorado Springs and Aurora landlords should:

• Expect SCRA terminations as routine, not exceptional — Fort Carson, Peterson, and Schriever generate hundreds of PCS orders per year;
• Include a SCRA acknowledgment clause in the lease and provide military tenants with written notice of their rights at lease signing;
• Offer 6-month and 9-month lease options alongside standard 12-month terms — the military PCS cycle creates demand for shorter lease terms that market-rate civilian tenants rarely request;
• Be familiar with BAH (Basic Allowance for Housing) rates for El Paso County — these effectively set the market price ceiling for military-grade apartments; consult current BAH tables at the DFAS website for E-5/E-6/O-3/O-4 rates;
• Contact the Fort Carson Housing Services Office (HSO) and Peterson/Schriever Airman and Family Readiness Center for referral relationships, as both offices routinely direct servicemembers to off-base rental housing.

For rent increase context: Colorado Springs rent increase 2026 → | Aurora CO rent increase 2026 →

10. Denver, Colorado Springs, Boulder, Fort Collins, and Aurora Rental Markets 2026

10a. Denver — Denver County

Denver is Colorado's capital and largest city (~715,000 city; ~2.96M metro). After the extraordinary 2020–2022 rent surge (some Denver submarkets saw 20–30% year-over-year increases), the Denver market moderated significantly in 2023–2024 as a large supply pipeline delivered tens of thousands of new units. By late 2025, metro Denver vacancy rates were in the 7–9% range and rent growth had settled to 2–4% annually — softness concentrated in luxury/new construction, with Class B workforce housing holding firmer.

Key employers driving Denver rental demand:

• Lockheed Martin Space (6801 Rockledge Drive, Littleton; ~7,000 Colorado employees; GPS Block III satellite manufacture; Orion crew capsule production; A2100 commercial satellites; Denver's largest aerospace/defense employer)
• UCHealth / University of Colorado Anschutz Medical Campus (Aurora; ~30,000 system-wide employees; UCHealth University of Colorado Hospital; top-ranked Colorado hospital; Rocky Mountain's largest Level I Trauma center; CU School of Medicine ~500 MD graduates/year)
• Amazon (~25,000+ Colorado employees across Denver Tech Center corporate offices, multiple fulfillment centers in Aurora/Thornton/Broomfield, and the AWS regional infrastructure)
• DaVita (NYSE:DVA; 2000 16th Street, Denver; Fortune ~500; ~65,000 US employees; nation's largest kidney care provider; Denver HQ supports national operations)
• Dish Network / EchoStar (9601 S. Meridian Blvd, Englewood; ~5,000 Colorado employees; satellite + wireless; DISH launched Boost Infinite wireless network 2023)
• Centura Health (9100 E. Mineral Ave, Centennial; ~20,000 Colorado employees; 17-hospital system serving Colorado and western Kansas)
• Charles Schwab (TD Ameritrade / Schwab merger; significant campus in Lone Tree, south of Denver; ~12,000 Colorado employees)
• National Western Life (1675 Broadway, Denver; ~4,000 employees; major life insurance and annuity company; Denver HQ)

Denver 1BR rent ranges 2026:

For more: Denver rent increase 2026 →

10b. Colorado Springs — El Paso County

Colorado Springs (~490,000 city; ~780,000 metro) is Colorado's second-largest city and the nation's most military-concentrated major metropolitan area by percentage. The Springs rental market is heavily influenced by Department of Defense spending cycles, BAH rate adjustments, and PCS rotation volumes. Civilian demand drivers include the tech/defense contractor ecosystem (L3Harris, SAIC, Leidos, Northrop Grumman all maintain significant Springs-area presences), healthcare (Memorial Hospital, UCHealth, Penrose St. Francis), and University of Colorado Colorado Springs (UCCS ~13,000 students).

Colorado Springs 1BR rent ranges 2026:

For more: Colorado Springs rent increase 2026 →

10c. Boulder — Boulder County

Boulder (~105,000 city; ~330,000 county) is one of the most expensive rental markets in the Rocky Mountain West, driven by the University of Colorado Boulder (~38,000 students), the National Institute of Standards and Technology (NIST; ~2,500 federal employees), the National Center for Atmospheric Research / University Corporation for Atmospheric Research (NCAR/UCAR; ~1,200 scientists), Google Boulder (~700 engineers), and dozens of biotech, aerospace, and tech startups. The Boulder rental market has a pronounced seasonal pattern: August–September leasing activity is extremely intense as ~20,000–25,000 student renters move simultaneously, driving temporary vacancy to near-zero and briefly supporting above-market concession-free pricing.

Boulder 1BR rent ranges 2026:

For more: Boulder CO rent increase 2026 →

10d. Fort Collins — Larimer County

Fort Collins (~170,000 city; ~350,000 county) is home to Colorado State University (CSU; ~34,000 students; R1; Veterinary Medicine, Engineering, and Agriculture programs nationally ranked) and New Belgium Brewing Company (~700 employees; Colorado's largest craft brewery; ESOP-owned). The CSU campus creates strong student-housing demand concentrated in Old Town and the neighborhoods north of campus. Fort Collins also benefits from a significant tech sector (Hewlett Packard Enterprise maintained a major campus in Fort Collins historically; Intel Fab 22 in nearby Loveland) and healthcare (UCHealth Poudre Valley Hospital, Banner Health).

Fort Collins 1BR rent ranges 2026:

For more: Fort Collins CO rent increase 2026 →

10e. Aurora — Arapahoe, Adams, and Douglas Counties

Aurora (~390,000) is Colorado's third-largest city and spans three counties. It anchors around the University of Colorado Anschutz Medical Campus (one of the West's largest medical complexes), Buckley SFB, Denver International Airport (DIA; 10 miles northeast of central Aurora; American Airlines + United hub; ~35,000 on-site airport employees), and the Children's Hospital Colorado (Anschutz Campus; ~6,000 employees). Aurora is more affordable than Denver's urban core and has absorbed a significant share of post-pandemic in-migration from expensive California and coastal markets.

For more: Aurora CO rent increase 2026 →

11. Colorado vs. Neighboring States — Landlord-Tenant Comparison

12. 10 Most Costly Colorado Landlord Mistakes

1. Serving a 3-day nonpayment notice instead of a 10-day demand. SB 21-173 (effective January 1, 2022) extended the nonpayment notice from 3 days to 10 days. Landlords still using 3-day demand forms — widely available online from pre-2022 sources — serve legally defective notices. A tenant or tenant's attorney who raises defective notice as a defense will get the FED case dismissed, forcing the landlord to restart the process with a proper 10-day notice and losing weeks of calendar time plus filing fees.
2. Missing the 30-day deposit return deadline. CRS §38-12-103(1) gives 30 days by default (60 days maximum if the lease specifies). Missing the deadline — even by a few days — can expose the landlord to the 3× wrongful withholding penalty under CRS §38-12-103(3) for bad-faith retention, plus attorney fees. The penalty applies to the amount wrongfully withheld: if the landlord withholds $1,500 in deductions and misses the deadline, potential liability is $4,500 plus the tenant's attorney fees.
3. Deducting normal wear and tear from the deposit. Colorado law does not permit deductions for normal wear and tear. Courts routinely disallow deductions for light scuffs on walls, minor carpet wear, faded paint, and similar ordinary deterioration. Landlords who deduct these items face the prospect of having those deductions characterized as wrongful, potentially triggering the 3× penalty. Proper documentation at move-in (timestamped photos of every surface) is the only effective defense.
4. Entering the unit without 24-hour notice. HB 21-1121 (2021) formally codified Colorado's 24-hour entry notice requirement at CRS §38-12-503. Landlords who show up without notice for routine inspections, maintenance, or showings violate the statute. A pattern of unauthorized entry can support a tenant claim of breach of the covenant of quiet enjoyment, an anti-retaliation claim, or — if the tenant is exercising habitability rights — a damages claim under CRS §38-12-509.
5. Using a lease with prohibited provisions. CRS §38-12-105 (as amended by SB 21-173 and HB 21-1121) prohibits specific lease terms: self-help eviction clauses, waivers of habitability rights, excessive late fee provisions, unreasonable application fee clauses, and one-sided fee-shifting clauses. Using a pre-2022 lease form that has not been updated for these changes means the lease contains unenforceable provisions — and potentially exposes the landlord to claims that the prohibited provisions themselves were a form of prohibited practice.
6. Charging application fees exceeding actual screening costs. SB 21-173 (CRS §38-12-105(1)(g)) prohibits application fees that exceed the actual out-of-pocket cost of tenant screening. A landlord who charges a $50 flat application fee but only pays $20 for the credit check is potentially in violation. If no screening occurs, the application fee must be refunded. Systematically overcharging application fees could result in class-action exposure from multiple applicants.
7. Attempting self-help eviction. Changing locks, removing the tenant's belongings, or shutting off utilities without a court order is prohibited in Colorado and creates significant legal exposure under CRS §38-12-510. Self-help can result in: actual damages to the tenant; statutory damages; attorney fee awards; and even potential criminal trespass charges. The FED process in Colorado, while not as fast as Texas or Utah, is streamlined enough that self-help creates far more risk than the time it might save.
8. Failing to disclose bed bug history. CRS §38-12-517 (HB 22-1380, 2022) requires landlords to disclose both current infestations AND any history of infestation within the prior three years. Landlords who fail to make this disclosure — even inadvertently, because they did not know they were required to — can face lease voiding claims and damages from tenants who subsequently discover an infestation. Maintaining written inspection and treatment records is the only way to confidently comply with the three-year history requirement.
9. Retaliating against a tenant who complains about habitability. HB 21-1121 codified strong anti-retaliation protections at CRS §38-12-509. If a tenant exercised a habitability right and the landlord then serves a termination notice, files an eviction, raises rent sharply, or reduces services — within a period where the connection could appear retaliatory — the landlord faces a rebuttable presumption of retaliation. The tenant can recover actual damages, potentially treble damages for bad-faith retaliation, and attorney fees. Even where the landlord's action was legitimate, the timing can create years of litigation.
10. Violating SCRA — ignoring military early termination notices. Colorado Springs, Aurora, and Fort Collins landlords near major military installations regularly receive SCRA early termination notices. A landlord who refuses to accept a valid SCRA termination, charges break-lease fees, or pursues the servicemember for remaining rent after a proper SCRA notice faces federal liability under 50 U.S.C. §4041 et seq. (civil enforcement provisions) plus potential state tort claims. The Department of Justice actively investigates SCRA violations. Accept SCRA termination notices promptly, return the deposit within 30 days from the SCRA termination date, and do not assess penalties.

13. 10-Step Colorado Compliance Checklist

1. Before advertising the unit: Conduct a thorough inspection; remediate any known bed bug infestation; confirm no habitability deficiencies exist. Prepare written documentation of the unit's condition with timestamped photos covering every room, surface, appliance, and fixture.
2. Application and screening: Charge only actual out-of-pocket screening costs (CRS §38-12-105(1)(g)). Provide an itemized accounting on request. Apply consistent, non-discriminatory screening criteria. Screen under Colorado fair housing law (CRS §24-34-502) and the federal Fair Housing Act — prohibited bases include race, color, national origin, religion, sex, familial status, disability, sexual orientation (state law), marital status (state law), and source of income in municipalities with source-of-income protections.
3. At lease execution: Use a post-SB 21-173 and post-HB 21-1121 compliant lease form (updated for Colorado 2022 and later changes). Include: 10-day nonpayment demand provisions; 21-day month-to-month termination; no prohibited provisions. Provide required disclosures: bed bug disclosure (CRS §38-12-517); lead paint disclosure (pre-1978 buildings); HOA rules if applicable.
4. Move-in inspection: Complete a written move-in condition checklist jointly with the tenant. Both parties sign and date. Provide the tenant a copy. This document is your primary defense in any future deposit deduction dispute.
5. Security deposit handling: Although not required by statute, hold the deposit in a dedicated account separate from operating funds. Document the deposit amount and the account holding it. Note the 30-day return deadline (or the agreed extended period, not to exceed 60 days) on your calendar.
6. During the tenancy — maintenance and habitability: Respond to written habitability complaints within a reasonable time. Maintain all habitability conditions required by CRS §38-12-503 (HB 21-1121). Give at least 24 hours' advance written notice before any non-emergency entry (CRS §38-12-503). Document all repairs with receipts and before/after photos.
7. Rent increases for month-to-month tenants: Give at least 21 days' written advance notice (CRS §38-12-202, as amended by SB 21-173). No cap on the amount, but notice must be in writing and specify the new rent and effective date.
8. When a tenant misses rent: Serve a written 10-Day Demand for Payment (CRS §13-40-104(1)(d)) — NOT a 3-day demand. Keep a copy and document the date and method of service. If unpaid after 10 days, file the FED complaint at the appropriate County Court (see §5d above for court addresses).
9. Move-out and deposit return: Conduct a joint move-out inspection (or document the inspection carefully if the tenant declines to participate). Within 30 days of surrender (or the agreed period, max 60 days): return the full deposit OR provide a written itemized statement of deductions WITH any remaining balance. Send by certified mail to the tenant's forwarding address. Keep proof of mailing.
10. Military tenants: If the tenant is active-duty military (Fort Carson, Buckley SFB, Peterson SFB, Schriever SFB, USAFA), be prepared to receive SCRA early termination notice. Accept it without penalty. Process the deposit return within 30 days from the SCRA termination date. Do not charge break-lease fees or re-leasing costs against a SCRA termination.

14. FAQ