Montana plumber license & renewal
The requirements, the timing and the official sources. Everything we’ve verified, in one place.
License fee
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Not verified yet
Required hours
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Not verified yet
Exam
Journeyman: at least 70% on written and practical examinations.
Renewal
The renewal deadline date (expiration date) for all Board of Plumbers licensees is September 1 of each year.
Before you begin
Agency guidance
A master license is required to obtain plumbing permits. A journeyman license does not authorize operating or advertising a plumbing business.
Verified 2026-10-24 — source and quotation
a master plumber license is required to obtain plumbing permits. A journeyman's plumber's license does not authorize the individual to obtain a plumbing permit or to engage in or advertise as a plumbing business.Official source
Agency guidance
Master application fee: $380; optional temporary journeyman work permit for exam candidates: an additional $100.
Verified 2026-10-24 — source and quotation
$380 – Application fee $100 – Temporary Journeyman work permit for exam candidates (fee is in addition to application fee)Official source
Agency guidance
Master examination: at least 70% on the Montana written examination.
Verified 2026-10-24 — source and quotation
Successful completion of the master written examination in Montana with a grade of 70% or better.Official source
Agency guidance
The FY 2026 renewal notice sets September 1, 2026 as the due date and abates the renewal fee; late fees still apply.
Verified 2026-10-24 — source and quotation
FY 26 Plumbing license renewals open July 2, 2026, and are due by September 1, 2026. The license renewal fee is 100% abated; however, if you are renewing late, fees do apply.Official source
How to get this license
Use the agency’s requirements below to plan your next steps. Missing details stay marked.
Start with the licensing authority
Licensing board
Montana Board of Plumbers
Official agency page
Check the qualifications
Experience
Journeyman: five years of plumbing experience or completion of an approved apprenticeship. Master: four years as a licensed journeyman, including three working for a master or in a supervisory capacity.
Verified 2026-10-24 — source and quotation
To qualify to sit for the examination for a Journeyman license, you must have 5 years experience in the field of plumbing, or completion of an approved apprenticeship program. To qualify to sit for the examination for a Master license, you must have 4 years experience as a licensed Journeyman plumber, with 3 of those years either working for a Master plumber, or in a supervisory capacity.
Official sourceExam
Journeyman: at least 70% on written and practical examinations.
Verified 2026-10-24 — source and quotation
Passing score of 70% or better on written and practical examination.
Official sourceReview fees and apply
Application fee
Not verified yet
Exam fee
Not verified yet
License fee
Not verified yet
Apply with the agency
Verified 2026-10-24 — source and quotation
You can apply for a license online at https://ebiz.mt.gov/POL/.
Official source
Reciprocity
Journeyman agreements with Oregon, Idaho, North Dakota and South Dakota; no master reciprocity. A passed written and practical examination and an active license without complaints qualify for the exam waiver; applicants without a practical examination must take it.
Verified 2026-10-24 — source and quotation
Montana has reciprocity agreements for Journeyman licensure only with Oregon, Idaho, North Dakota and South Dakota. Montana does not reciprocate a Master license. If you have passed the Journeyman plumbing written and practical exams in one of the states we have reciprocity agreements with, and you do not have any complaints on your active license, you will not have to take the Journeyman exam in Montana. If you have not taken a practical examination, you will be required to in accordance with ARM 24.180.603.Official source
Official sources and verification (13)
Last verified 2026-10-24. Each quotation supports the corresponding published value.
You can apply for a license online at https://ebiz.mt.gov/POL/.Official source
Verified 2026-10-24
To qualify to sit for the examination for a Journeyman license, you must have 5 years experience in the field of plumbing, or completion of an approved apprenticeship program. To qualify to sit for the examination for a Master license, you must have 4 years experience as a licensed Journeyman plumber, with 3 of those years either working for a Master plumber, or in a supervisory capacity.Official source
Verified 2026-10-24
Passing score of 70% or better on written and practical examination.Official source
Verified 2026-10-24
4 hours annually code-related. Course must have prior approval of Board.Official source
Verified 2026-10-24
4 hours annually code-related. Course must have prior approval of Board.Official source
Verified 2026-10-24
Montana has reciprocity agreements for Journeyman licensure only with Oregon, Idaho, North Dakota and South Dakota. Montana does not reciprocate a Master license. If you have passed the Journeyman plumbing written and practical exams in one of the states we have reciprocity agreements with, and you do not have any complaints on your active license, you will not have to take the Journeyman exam in Montana. If you have not taken a practical examination, you will be required to in accordance with ARM 24.180.603.Official source
Verified 2026-10-24
a master plumber license is required to obtain plumbing permits. A journeyman's plumber's license does not authorize the individual to obtain a plumbing permit or to engage in or advertise as a plumbing business.Official source
Verified 2026-10-24
$380 – Application fee $100 – Temporary Journeyman work permit for exam candidates (fee is in addition to application fee)Official source
Verified 2026-10-24
Successful completion of the master written examination in Montana with a grade of 70% or better.Official source
Verified 2026-10-24
FY 26 Plumbing license renewals open July 2, 2026, and are due by September 1, 2026. The license renewal fee is 100% abated; however, if you are renewing late, fees do apply.Official source
Verified 2026-10-24
The renewal deadline date (expiration date) for all Board of Plumbers licensees is September 1 of each year.Official source
Verified 2026-10-24
Keep exploring.
Same license in other states
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Last verified 2026-10-24.
Official sources (5)
Not legal or tax advice. Confirm with the official agency before filing.