Residential Lease Execution Formalities in Colorado

At a glance

Requirements one by one

Writing threshold

Colorado draws the line at more than one year. C.R.S. § 38-10-108 says a contract leasing land for a longer period is void unless the contract—or a note or memorandum expressing the consideration—is written and subscribed by the party making the lease. Section 38-10-106 makes the same dividing line from the property-interest side: leases not exceeding one year are excluded from its signed-writing rule.

That means a one-year lease is on the short side of the line; the trigger is a term longer than one year. C.R.S. § 38-12-902 confirms that Colorado's residential "rental agreement" can be written or oral and concerns the use and occupancy of a dwelling unit.

Required signatures and authority

For the longer lease, § 38-10-108 asks for the signature of the party by whom the lease is made. Section 38-10-106 similarly requires the signature of the party creating the land interest or that party's agent with written authority. C.R.S. § 38-10-109 lets an agent subscribe the instrument required by § 38-10-108 only when the agent is lawfully authorized in writing.

Colorado's residential copy rule answers a different question. Under § 38-12-801(1), the copy delivered to the tenant must be signed by both landlord and tenant. That both-signature copy duty does not rewrite § 38-10-108's separate rule about which signature satisfies the land statute of frauds.

Witness, acknowledgment, and notary

Sections 38-10-106 and 38-10-108 require a subscribed writing but name no witness, acknowledgment, seal, or notary for lease execution. Colorado also recognizes an unacknowledged written real-property instrument after recording: § 38-35-106(1) says it gives notice even when acknowledgment is absent or defective. Acknowledgment therefore is not what makes the lease enforceable between landlord and tenant.

Electronic execution

Colorado's Uniform Electronic Transactions Act applies to ordinary lease formation, but it does not force either party online. C.R.S. § 24-71.3-105 says each party must agree to conduct the transaction electronically, with agreement determined from context and conduct. C.R.S. § 24-71.3-107 then lets electronic records and signatures satisfy writing and signature requirements.

Delivery must leave a usable record. Under § 24-71.3-108, electronically delivered information must be printable or storable; if the sender inhibits retention, the electronic record is not enforceable against the recipient. And § 24-71.3-103(3)(b)(II) excludes required primary-residence default, acceleration, repossession, foreclosure, eviction, and cure notices. E-signing the lease does not automatically authorize those later notices electronically.

Required copy or written statement

C.R.S. § 38-12-801(1) starts the clock when the tenant signs. No later than the seventh day afterward, the landlord must provide a copy signed by landlord and tenant. The landlord may deliver electronically unless the tenant requests paper, in which case paper is required.

Section 38-12-801(2) adds an identity statement. The written agreement must give the name and address of the landlord or authorized agent. If that identity changes, the new landlord or agent has one business day to notify each tenant in writing or electronically, or to post the new identity conspicuously at the residential premises.

Renewal, modification, assignment, and surrender

The cited sections do not create a separate statewide renewal form. They keep the form tied to the land interest instead. A contract leasing for longer than one year remains within § 38-10-108. Section 38-10-106 separately requires a signed writing to create, grant, assign, surrender, or declare a land interest, unless the change occurs by act or operation of law; an agent needs written authority.

Recording and third-party effect

Recording is not a condition for enforceability between the original parties. C.R.S. § 38-35-109(1) permits written agreements or other instruments affecting real-property title to be recorded with the county clerk and recorder where the property lies. The section states no lease-specific term threshold or prescribed memorandum form.

The consequence is priority. An unrecorded instrument remains effective between its parties and against someone who had notice, but it is not valid against a later rights-holder who records first without prior notice. Colorado calls this its "race-notice recording statute." Section 38-35-106 separately confirms that recording gives notice even if the instrument is unacknowledged or defectively acknowledged.

Effect of noncompliance

The consequence in § 38-10-108 is direct: a longer lease is "void" without the required writing, consideration statement, and subscribing signature. Section 38-10-106 likewise prevents creation, assignment, or surrender of the land interest without its signed-writing route or operation of law.

The signed-copy subsection uses different language. Section 38-12-801(1) imposes the seven-day delivery duty but does not say that a late or missing copy makes the rental agreement void. Recording defects also concern priority against third persons under § 38-35-109, not automatic invalidity between landlord and tenant.

What trips people up

One year is included; longer than one year is the trigger. A term of exactly one year is outside §§ 38-10-106 and 38-10-108's longer-lease writing rule.

The statute-of-frauds signature and the tenant's copy are different tests. Section 38-10-108 focuses on the party making the lease, while § 38-12-801 requires the delivered residential copy to carry both parties' signatures.

Email does not defeat a paper request. An electronic copy is permitted, but § 38-12-801(1) requires paper when the tenant asks for it.

Common questions

Can an emailed signed copy satisfy Colorado law? Yes, when the parties have agreed to transact electronically, the tenant has not requested paper, and the record can be printed or stored under § 24-71.3-108.

Does recording excuse the landlord from giving the tenant a signed copy? No. Recording addresses third-party priority under § 38-35-109; the seven-day copy duty in § 38-12-801 applies separately.

May an eviction notice be sent electronically just because the lease was e-signed? Not under the electronic-transactions act alone. Section 24-71.3-103(3)(b)(II) excludes required primary-residence default, eviction, and cure notices from that act.

Statutes and sources

• C.R.S. §§ 38-10-106, -108, -109 — one-year line, longer-lease writing and consideration, subscribing party, and written agent authority. https://olls.info/crs/crs2025-title-38.pdf (accessed 2026-07-30)
• C.R.S. §§ 38-12-801, -902 — signed-copy deadline and medium, landlord or agent identity statement, change notice, and residential-rental definitions. https://olls.info/crs/crs2025-title-38.pdf (accessed 2026-07-30)
• C.R.S. §§ 24-71.3-103, -105, -107, -108 — scope and excluded notices, party agreement, electronic equivalence, and retainable delivery. https://olls.info/crs/crs2025-title-24.pdf (accessed 2026-07-30)
• C.R.S. §§ 38-35-106, -109 — effect of absent acknowledgment, permitted recording, county office, and race-notice priority. https://olls.info/crs/crs2025-title-38.pdf (accessed 2026-07-30)