What is a notice of intent to lien?

A notice of intent to lien is a written warning sent to the property owner (and often the general contractor) that you intend to file a mechanic's lien if you are not paid. It often prompts payment without having to file, and in about ten states it is a required step before you can file a lien.

Do I have to send a notice of intent before filing a lien?

It depends on the state. Around ten states (including Arkansas, Colorado, Connecticut, Illinois, Louisiana, Missouri, North Dakota, Pennsylvania, Wisconsin, and Wyoming) require a notice of intent before a lien can be filed, often on a strict deadline. This tool flags whether your state requires it and links the statute.

Notice of Intent to Lien

Create a notice of intent to lien (the demand letter before a mechanic's lien) with the states that require it and the deadline flagged. Free, no sign-up.

Project state · sets the deadline rules

● Required in Colorado

Colorado requires a notice of intent before you can file a lien. Send it correctly or you may lose lien rights.

Deadline

At least 10 days before filing a lien

Service

personal service or certified mail

Colo. Rev. Stat. §38-22-109(3) ↗

Claimant (you)Company logoLicense #

PhoneBusiness address

Property ownerHired by (GC / customer)

ProjectProperty address

Amount owed

Last furnished date

Work / materials furnished

Your signature (contractor)

For convenience only. Not a certified electronic signature. The owner signs their own block separately.

Acme Builders LLC

2200 Industrial Blvd, Denver, CO 80216

Lic #CO-449201 · (720) 555-0148

Notice of Intent to Lien

Date: Jan 1, 2026

To: Jane & Mark Doe (property owner)
c/o Doe General Contracting

Re: Property at Kitchen Remodel · 142 Oak Street, Denver, CO 80202

This letter is formal notice that the undersigned, Acme Builders LLC, furnished Cabinetry installation and finish carpentry labor, plus supplied trim and hardware. to the above property and has not been paid the amount of $9,800.00 now due, for work last furnished on May 30, 2026.

Unless payment in full is received within 10 days of this notice, the undersigned intends to file a mechanic's lien against the property to secure payment, as permitted by Colorado law. Please treat this matter as urgent.

Claimant signature / date

Informational only. Not legal advice and not a law firm. Colorado requires this notice on a strict deadline (Colo. Rev. Stat. §38-22-109(3)); confirm the timing and service method for your role and project, or consult a construction attorney.

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