State Guide

Idaho Mechanics Lien: Guide, Filing Process & Deadlines

Follow our Idaho mechanics lien guide. Know the deadlines. And secure your payment before it’s too late.

What Is An Idaho Mechanics Lien?

In Idaho, a mechanics lien is a statutory claim that attaches directly to the real property where work was performed or materials were delivered. It clouds the property’s title until the debt is resolved, making it a powerful payment tool in construction. Idaho Code Title 45, Chapter 5 governs mechanics lien rights and applies to both commercial and residential projects. While preliminary notices are not required for subcontractors or material suppliers on private projects, prime contractors on residential projects exceeding $2,000 must provide a statutory Residential Disclosure Statement prior to entering into the contract (Idaho Code § 45-525).

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WHEN TO FILE

Idaho Lien Deadlines

In Idaho, you generally have 90 days from your last work or materials to file a mechanics lien. The same 90-day clock applies to everyone, and it starts the moment your last labor or materials hit the job.

For Subs/Laborers

Preliminary Notice Deadlines

Optional (RECOMMENDED)

Idaho doesn’t require subcontractors to serve a preliminary notice to preserve lien rights on most private projects, but sending one can notify the owner and contractor.

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Mechanics Lien Deadlines

90 DAYS

File within 90 days after the last date labor or services were performed. Under Idaho Code § 45-507(2), this deadline is absolute- there are no extensions.

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For Suppliers/Others

Preliminary Notice Deadlines

Optional (RECOMMENDED)

Material suppliers are not required to send a preliminary notice for most private projects, but most still send one early to facilitate faster payment.

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Mechanics Lien Deadlines

90 Days

File your Idaho mechanics lien within 90 days after the last date materials were furnished to the project.

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General Contractors

Residential Disclosure (§ 45-525)

BEFORE SIGNING CONTRACT

GCs working on residential property (1–4 units) on contracts exceeding $2,000 must provide a written disclosure statement to the homeowner before signing the contract.

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Mechanics Lien Deadlines

90 Days

File within 90 days after labor or materials are furnished. Under § 45-507(3)(e), residential GCs must include proof of the § 45-525 disclosure in the lien claim.

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Process

How To File A Mechanics Lien In Idaho

These steps are built directly on Idaho Code § 45-507. Get them right so your payment rights are fully protected.

Confirm Your Eligibility

Idaho contractors, subcontractors, materialmen, equipment lessors, licensed surveyors, and professional engineers who provided labor, materials, or services to improve real property can file a mechanics lien.

Prepare Your Lien Form

Idaho lien law § 45-507(3) requires a valid lien form with your verified demand, the property owner’s name, the hiring party, the property description, proof of residential disclosure acknowledgment, and a notarized oath.

Record The Lien

File with the county recorder where the property is located. Filing costs and methods vary by county.

Serve the Owner

After filing, you must serve the owner within 5 business days. Serve a true and correct copy of the lien on the property owner either personally by an authorized law officer or by certified mail to the last known address.

Enforce Or Release The Lien

You have 6 months from the recording date to file a foreclosure action if you haven’t received payment. Once you are paid, file an Idaho mechanics lien release to clear the property title. We can help you cancel the lien.

Important

Errors like missing information, an incorrect owner name, or an expired deadline can invalidate your filing. Have Northwest Lien handle it from the start with flat-fee pricing and rush filing in 48 hours or less. Get started →