By Kjel Jones — independent custom-home researcher for Ashton and the Henry’s Fork corridor. Not a builder and not a general contractor. Licensed Idaho real estate agent, LPT Realty.

Published 2026-10-02

The free public search that tells you who your builder legally is — before the deposit clears

The free lookup every bid should survive

Before the deposit, before the contract, before the permit: run the builder’s name through the state’s own records. The Idaho Contractors Board — part of the Division of Occupational and Professional Licenses, DOPL — publishes a free public search. Its board page at dopl.idaho.gov/con/ links “Search for a Registration” through Online Services at edopl.idaho.gov, and the same portal is where complaints are filed. Board staff answer questions at (208) 334-3233, weekdays 8:00 AM to 5:00 PM.

The number rules: where it must appear

“A contractor registered pursuant to this chapter shall prominently display his contractor registration number for public view in his place of business, on advertising, contracts, permits, company or business letterheads, and purchase orders and subcontracts within sixty (60) days of issue of registration.”

— Idaho Code §54-5214(2), registration certificate — display. Retrieved 28 September 2026

Read that list the way an auditor would. A registered contractor’s number belongs on contracts, permits, advertising, letterheads, purchase orders, and subcontracts — not on a business card alone. So a bid or contract that arrives with no registration number anywhere is a red flag on its face: either the builder is unregistered, or is ignoring a display duty written into the very chapter that defines them. The number’s statutory home is the wallet card and certificate issued on registration (§54-5214(1)) — what you are checking against is the state’s record of it, not the laminate.

How long a registration lasts — statute and agency, both

Two sources, both true, and the page owes you both:

• The statute: a registration is issued for “not less than twenty-four (24) months nor more than five (5) years, as determined by the board” — with the expiration date set forth “on the face of the certificate” and board notice sent no less than 30 days before expiration (§54-5211(1)). Renewal applications are due on or before 30 days prior to expiration (§54-5214(1)).
• The agency: “As of October 14, 2025, this Board has begun transitioning to biennial registration” — the board’s own announcement, with the fee schedule effective July 1, 2026: $120 individual or business application/initial, $60 annual renewal, $120 biennial renewal, and a $40 reinstatement fee on top of the renewal.

The statute text is the law; the agency page carries the current cycle. When you actually search, the record in front of you beats both — status and expiration come from the state’s live data.

The traps: registrations that look alive and are not

• Inactive. A contractor holding an inactive registration “may not engage in business as a contractor in this state” — and carries no required insurance coverage while inactive (§54-5211(2)). Inactive paper still shows in a search; read the status line, not just the name. Converting back to active requires a fee and fresh proof of insurance.
• Transferred. Certificates “shall not be assignable nor transferable” (§54-5214(1)); any change of ownership — or of address — must be reported to the board within 30 days. A number that traveled with a sold business is not valid for the buyer who is quoting you.
• Lapsed. Reinstating a lapsed registration takes the renewal fee plus the reinstatement fee (§54-5211(3)) — under the current fee sheet, renewal plus $40. A builder who let it lapse can get it back, but during the gap they were not legal to hire.

What the search feeds

The lookup is the front half of two other pages on this site. It is how you confirm the registration rule is satisfied before signing. And because the board’s Public Search carries “formal actions against registered contractors” — the board page’s own wording — it is also where past discipline surfaces, the evidence base behind the complaint route if things go wrong. The lien chapter cares who was legal on the job too: the registration record quietly settles lien-side questions covered in how a construction lien works. Run the search before the first pour, not after the first problem.

Make the check a habit, not a moment

1. Search the builder’s name from dopl.idaho.gov/con/ — the “Search for a Registration” link — free, public, no gatekeeper.
2. Read the status line: active, inactive, lapsed, or disciplined. The name alone proves nothing.
3. Match the registration number in the result to the number on the bid, the contract, and the permit — all three, not one.
4. Re-run the search at signing and again before final payment — registrations expire on the calendar, not on your build schedule.
5. Bring the number into the build conversation early: (208) 656-1516.

Verification is the cheapest insurance in the whole build stack — cheaper than the permit fees, and it decides questions the permit question only begins.

Common questions

How do I check an Idaho contractor's registration?

Go to the Idaho Contractors Board page at dopl.idaho.gov/con/ and use the 'Search for a Registration' link, which opens the board's Online Services public search at edopl.idaho.gov. It is free and public. Questions can go to board staff at (208) 334-3233 or BCRE-Licensing@dopl.idaho.gov.

Where is a contractor's registration number required to appear?

By section 54-5214(2), prominently displayed for public view in the place of business, on advertising, contracts, permits, company or business letterheads, and purchase orders and subcontracts - within sixty days of the registration's issue. A bid or contract with no number anywhere is a red flag on its face.

How long does an Idaho contractor registration last?

The statute says not less than twenty-four months nor more than five years, as determined by the board, with the expiration date printed on the face of the certificate. The board's own page adds that as of October 14, 2025 it has begun transitioning to biennial (two-year) registration - cite the search record, which carries live status.

What does an inactive registration mean?

The holder may not engage in business as a contractor in Idaho and does not need to keep current insurance coverage, per section 54-5211(2). Inactive registrations are issued for twenty-four months at a time, and converting back to active requires a fee and proof of current insurance.

What does registration cost the contractor?

Under the fee schedule effective July 1, 2026: $120 for an individual or business application or initial registration, $60 for an annual renewal, $120 for a biennial renewal, and a $40 reinstatement fee in addition to the renewal fee. Knowing the cost of staying legal is useful when comparing bids.

Can a registration be sold or transferred to a new owner?

No. Certificates shall not be assignable nor transferable under section 54-5214(1), and a change of ownership or address must be reported to the board within thirty days. When a construction business changes hands, the new operator needs its own registration - the old number did not travel.

Can I see a contractor's discipline history?

Yes. The board's page directs the public to use the Public Search feature available through Online Services for information on formal actions against registered contractors - the same free portal used to search registrations and file complaints, so discipline is visible to anyone checking a bid.

What happens if a registration lapses?

Reinstatement requires payment of a renewal fee and a reinstatement fee under section 54-5211(3) - renewal plus $40 under the July 2026 fee sheet. The statute preserves the right to renew on later application, but during the lapse the holder was not legal to contract.

Does the board warn about scams?

Yes - the board's news section carries a fraud alert dated October 2, 2025 about emails and phone calls that appear to come from the office but are actually from scammers. Verify you are on the real dopl.idaho.gov or edopl.idaho.gov domain before entering anything.

When should I run the search?

Three times: when the bid arrives, at signing, and before final payment. Registrations expire on a calendar the board controls - with notice sent at least thirty days ahead - and an inactive or lapsed status mid-build changes what your contract is worth.