Idaho Pre-Claim Notice & Claim of Lien — Idaho Code § 45-507 / § 45-508 / § 45-510 County Recorder Filing Guide (2026)
✓ Verified against Idaho statutes · Reviewed August 2026 · By Michael Evan — Founder · 50 states · 799 rules
Idaho mechanics lien deadlines at a glance
Preliminary Notice
None — N/A
Mechanics Lien
90 days — From last date of furnishing
Enforcement
6 months — From filing
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What Is the Idaho Pre-Claim Notice Framework and How Does the Lien Workflow Operate?
Idaho's construction lien framework is codified at Idaho Code Title 45, Chapter 5 (Idaho Code §§ 45-501 through 45-525). The framework operates as a four-gate workflow: (1) on residential (1-2 family owner-occupied) projects exceeding $2,000, the prime contractor delivers the Idaho Code § 45-525 Disclosure Statement to the owner BEFORE the prime contract is executed; (2) all claimants record the Idaho Code § 45-507 Claim of Lien with the county recorder of the county in which the property is located within 90 days after the earlier of completion, 60-consecutive-day cessation, or abandonment; (3) within 5 business days after recording, the claimant serves a copy of the recorded Claim of Lien on the owner by certified mail with return receipt requested under Idaho Code § 45-508; and (4) the claimant commences the Idaho Code § 45-510 foreclosure suit in the Idaho District Court for the judicial district in which the property is located within 6 months after recording, with a lis pendens under Idaho Code § 5-505. Idaho imposes NO statewide commercial preliminary notice obligation — a sharp departure from California, Arizona, Nevada, Oregon, Washington, and Wyoming.
Who Must Record an Idaho Claim of Lien Under Idaho Code § 45-507?
Under Idaho Code § 45-501, every person performing labor upon or furnishing materials, equipment, or services for the construction, alteration, or repair of buildings or other structures in Idaho holds a lien upon the property. Original (general) contractors, subcontractors, sub-subcontractors, material suppliers, equipment lessors, design professionals, and laborers all record their own Idaho Code § 45-507 Claim of Lien and serve their own Idaho Code § 45-508 5-business-day Notice to Owner. Idaho Contractor Registration Act compliance is a threshold predicate — under Idaho Code § 54-5201 et seq., every Idaho construction contractor must register with the Idaho Bureau of Occupational Licenses (IBOL) before performing construction work valued at more than $2,000, and Idaho Code § 54-5217 bars an unregistered contractor from bringing any action for compensation in Idaho courts including a lien foreclosure.
Idaho Code § 45-507 Claim of Lien: The 90-Day Recording Window and 60-Day Cessation Trigger
Under Idaho Code § 45-507(2), the Claim of Lien must be recorded with the county recorder of the county in which the property is located within 90 days after the EARLIER of (a) completion of labor or furnishing of materials by the claimant, (b) cessation of labor or furnishing on the project for 60 consecutive days (Idaho's unique cessation trigger), or (c) abandonment. The 90-day clock runs from the EARLIEST of these three events. Idaho's 60-consecutive-day cessation trigger is unique among U.S. lien jurisdictions and is the single most common cause of forfeited Idaho liens — seasonal Idaho construction (mountain residential, Sun Valley luxury, ski-resort, Magic Valley agricultural, Snake River Plain irrigation) routinely experiences 60+ consecutive days of inactivity. The Claim of Lien must be verified by oath and must include the claimant's name and address, owner of record, contracting party, sufficient property description with legal description from the county recorder's records, itemized statement of labor and materials, dates of first and last furnishing, and amount due after just credits and offsets.
Idaho Code § 45-508 Notice to Owner: The 5-Business-Day Post-Recording Cliff
Under Idaho Code § 45-508, within 5 business days after recording the Idaho Code § 45-507 Claim of Lien, the claimant must serve a true and correct copy of the recorded Claim of Lien on the owner by certified mail with return receipt requested at the owner's last-known address. The 5-business-day clock runs from the day the Claim of Lien is RECORDED — not from the day the recording is acknowledged or the return receipt is received. Idaho courts have construed the § 45-508 service obligation strictly: a claimant who records a timely § 45-507 Claim of Lien but fails to serve a copy on the owner within 5 business days renders the lien UNENFORCEABLE against the owner. This is Idaho's most dangerous lien-timing trap — sharper than New Mexico's post-recording service under NMSA § 48-2-7 and Nevada's 30-day post-recording service under NRS 108.227. Safer practice: record and mail certified-mail Notice to Owner the same day.
Idaho Code § 45-525 Residential Disclosure Statement on Owner-Occupied Residential Projects
Under Idaho Code § 45-525, before entering into a contract for residential (1-2 family owner-occupied) construction exceeding $2,000, the prime contractor must provide the residential owner with a written Disclosure Statement identifying the contractor's name and Idaho contractor registration number, advising of mechanic's lien exposure, and recommending lien waivers and joint payee checks. The § 45-525 Disclosure must be delivered BEFORE the prime contract is executed. Failure can limit lien enforcement against owner-occupied residences and exposes the prime contractor to penalties.
Idaho Code § 45-510 6-Month Foreclosure Window and Idaho's 44 Counties / 7 Judicial Districts
Under Idaho Code § 45-510, foreclosure must be commenced in the Idaho District Court for the judicial district in which the property is located within 6 months after the Claim of Lien is recorded. If foreclosure is not commenced within 6 months, the lien is extinguished by operation of law. Idaho has 44 counties grouped into seven judicial districts: First (Coeur d'Alene), Second (Lewiston-Moscow), Third (Caldwell), Fourth (Boise), Fifth (Twin Falls), Sixth (Pocatello), and Seventh (Idaho Falls). The Claim of Lien must be recorded with the county recorder of the county where the property is located; the foreclosure must be filed in the Idaho District Court for the judicial district where the property is located. On Idaho public works exceeding $50,000, no private lien attaches — pursue the prime's payment bond under the Idaho Mini Miller Act at Idaho Code § 54-1926 et seq. On federal projects (Idaho National Laboratory, Mountain Home AFB, Gowen Field, Yellowstone, Craters of the Moon, Hells Canyon NRA, Sawtooth NRA, the seven Idaho National Forests, Bureau of Reclamation reservoirs, federal Indian Trust land), pursue the federal Miller Act payment bond under 40 U.S.C. § 3131 et seq.
Frequently Asked Questions
Does Idaho require a preliminary notice before recording a mechanic's lien?
No. Idaho imposes no statewide commercial preliminary notice obligation. Idaho construction claimants preserve lien rights by recording the Idaho Code § 45-507 Claim of Lien within 90 days after the earlier of completion, 60-consecutive-day cessation, or abandonment. The only pre-furnishing notice is the Idaho Code § 45-525 Disclosure Statement on residential (1-2 family owner-occupied) projects exceeding $2,000, delivered BEFORE the contract is executed.
When must the Idaho Claim of Lien be recorded under Idaho Code § 45-507?
Within 90 days after the EARLIEST of (a) completion of labor or furnishing by the claimant, (b) cessation of labor or furnishing on the project for 60 consecutive days (Idaho's unique cessation trigger), or (c) abandonment. Idaho's 60-consecutive-day cessation trigger is unique among U.S. lien jurisdictions and is the most common cause of forfeited Idaho liens on seasonal mountain residential, Sun Valley luxury, ski-resort, Magic Valley agricultural, and Snake River Plain irrigation projects.
What is the Idaho Code § 45-508 5-business-day Notice to Owner?
Within 5 business days after recording the Idaho Code § 45-507 Claim of Lien, the claimant must serve a copy of the recorded Claim of Lien on the owner by certified mail with return receipt requested at the owner's last-known address. The 5-business-day clock runs from the day the Claim of Lien is recorded. Failure to serve within 5 business days renders the lien UNENFORCEABLE against the owner — Idaho's most dangerous lien-timing trap. Safer practice: record and mail certified-mail Notice to Owner the same day.
Where is the Idaho Claim of Lien recorded?
With the county recorder of the county in which the property is located. Idaho has 44 counties: Ada (Boise), Adams, Bannock (Pocatello), Bear Lake, Benewah, Bingham (Blackfoot), Blaine (Hailey / Sun Valley), Boise, Bonner (Sandpoint), Bonneville (Idaho Falls), Boundary, Butte (Idaho National Laboratory), Camas, Canyon (Caldwell / Nampa), Caribou, Cassia, Clark, Clearwater, Custer, Elmore (Mountain Home AFB), Franklin, Fremont, Gem, Gooding, Idaho, Jefferson, Jerome, Kootenai (Coeur d'Alene), Latah (Moscow), Lemhi, Lewis, Lincoln, Madison (Rexburg / BYU-Idaho), Minidoka, Nez Perce (Lewiston), Oneida, Owyhee, Payette, Power, Shoshone, Teton, Twin Falls, Valley (McCall), and Washington. Filing in the wrong Idaho county is a fatal recording defect at foreclosure.
How long does an Idaho mechanic's lien last after recording?
Under Idaho Code § 45-510, the foreclosure action must be commenced in the Idaho District Court for the judicial district where the property is located within 6 months after the Claim of Lien is recorded. If foreclosure is not commenced within 6 months, the lien is extinguished by operation of law. A lis pendens is recorded under Idaho Code § 5-505. Idaho has seven judicial districts: First (Coeur d'Alene), Second (Lewiston-Moscow), Third (Caldwell), Fourth (Boise), Fifth (Twin Falls), Sixth (Pocatello), Seventh (Idaho Falls).
Does Idaho require contractor licensing before filing a mechanic's lien?
Yes — Idaho operates two parallel regimes. Idaho Contractor Registration Act under Idaho Code § 54-5201 et seq. is mandatory for ALL construction work exceeding $2,000 (administered by the Idaho Bureau of Occupational Licenses); Idaho Code § 54-5217 bars an unregistered contractor from bringing any action for compensation including a lien foreclosure. The Idaho Public Works Contractors License under Idaho Code § 54-1901 et seq. is required separately for public works exceeding $50,000 (Class A unlimited, Class B up to $500K, Class C up to $250K, Class D up to $50K).
How does Idaho handle public works and federal projects?
No private lien attaches to public property. On Idaho state, county, municipal, and school-district public works over $50,000, pursue the prime contractor's payment bond under the Idaho Mini Miller Act at Idaho Code § 54-1926 et seq. On federal projects (Idaho National Laboratory in Butte/Bingham Counties — 890-square-mile DOE facility, Mountain Home Air Force Base in Elmore County, Gowen Field Idaho Air National Guard in Ada County, Yellowstone, Craters of the Moon, Hells Canyon NRA, Sawtooth NRA, the seven Idaho National Forests, Bureau of Reclamation reservoirs, Nez Perce / Coeur d'Alene / Kootenai / Shoshone-Bannock / Shoshone-Paiute federal Indian Trust land), pursue the federal Miller Act payment bond under 40 U.S.C. § 3131 et seq.