Colorado Notice to Vacate

Colorado notice periods

Each period is the one LeaseCraft's record of the statute holds. Read it with the conditions under it: some periods are minimums and some apply unless the lease sets another. "Lease controls" means the record holds no statutory period for that situation, and "No pre-suit notice" means it holds no notice before filing. The source column shows the law and the date LeaseCraft read it on the official site (most recently 2026-09-27).

What the Colorado statute says

Ending a month-to-month tenancy: 21 calendar days

• Notice to quit for a tenancy of one month or longer but less than six months: at least twenty-one days before the end of the tenancy period (13-40-107(1)(c) as rewritten by HB24-1098).
• Residential tenants who have been tenants of the premises for at least 12 months (and are not otherwise excluded by 38-12-1302) may be removed only for cause; a no-fault termination requires a written notice served at least 90 days before the termination date stating the legal and factual basis (38-12-1303(3)).
• Notice must describe the property and the particular termination date and be signed by the landlord or agent (13-40-107(3)); served per 13-40-108.

Ending a week-to-week tenancy: 3 calendar days

• Tenancy of one week or longer but less than one month, or a tenancy at will: at least three days' notice to quit (13-40-107(1)(d)); less than one week: at least one day (13-40-107(1)(e)).

Notice by length of occupancy: Under 0.25 months: 1 day; 0.25 to under 1 months: 3 days; 1 to under 6 months: 21 days; 6 to under 12 months: 28 days; 12 months or more: 91 days

• 13-40-107(1): tenancy for one year or longer — 91 days; six months to one year — 28 days; one month to six months — 21 days; one week to one month or at will — 3 days; less than one week — 1 day. Tiers key to the length/kind of tenancy, not strictly to occupancy.
• 38-12-1303(3): once a residential tenant has 12 months' tenancy in covered premises, any no-fault termination needs 90 days' written notice with a statement of the legal and factual basis.

Tenant staying after the lease ends: Lease controls

• No written notice is necessary from a tenant whose fixed-term tenancy ends at a time certain (13-40-107(4)); holdover after the term is an unlawful detention ground (13-40-104) — but for covered residential tenants with 12+ months' tenancy the landlord needs a 38-12-1303 cause, and a no-fault nonrenewal needs 90 days' notice.

Delivery, form and other Colorado rules

Statewide just-cause rule

Yes: a statewide law requires a stated legal reason to end some tenancies

• Covered housing: every residential premises in the state except those excluded by 38-12-1302(1); a landlord shall not serve a notice to terminate tenancy or a demand for possession or proceed in unlawful detainer unless there is cause (38-12-1303(1)).
• Cause = the unlawful-detention grounds of 13-40-104 (nonpayment, covenant violations after demand, repeat violations, substantial violations, nuisance/disturbance conduct, holdover after proper notice) or a no-fault ground: demolition/conversion (incl. to short-term rental), substantial repairs requiring 30+ days' vacancy, landlord/family move-in within 3 months (45 days if active military), withdrawal of a single-family home/duplex/triplex/condo for sale, tenant's refusal of a new lease with reasonable terms, or more than two late rent payments (10+ days late) in the period (38-12-1303(2)-(3)).
• No-fault terminations require written notice at least 90 days before the termination date including a statement of the legal and factual basis (38-12-1303(3)).

C.R.S. 38-12-1301 to 38-12-1304 (HB24-1098, ch. 113, eff. 2024-04-19; 38-12-1302 amended by HB25-1168, ch. 229, § 16, eff. 2025-05-22) · read 2026-09-27

How the notice may be delivered

Secondary sources only LeaseCraft has not verified this at the official source (C.R.S. 13-40-108), so this page states no rule. Check it before you serve the notice.

Preparing the notice

The form asks for the tenancy, the date the tenant must leave and how the notice is delivered, and states the notice period plainly. You enter the period; where LeaseCraft has verified the Colorado period for ending a month-to-month tenancy, it refuses a shorter one.

Create a Colorado notice to vacate

A notice is not a court order and does not by itself remove a tenant. Cities and counties can add rules. LeaseCraft is not a law firm and this is not legal advice.

Notice to Vacate rules in nearby states

Notice to Vacate rules for every state