Prevailing wage

Montana prevailing wage and certified payroll

Montana's prevailing wage law, often called its Little Davis-Bacon Act, applies to state and local public works contracts costing more than $25,000. The Department of Labor and Industry sets the rates each year by district.

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Montana has a state prevailing wage law in Title 18, Chapter 2, Part 4 of the Montana Code Annotated. It covers construction contracts let by the state, a county, a city, a school district, or another political subdivision when the total contract cost is more than $25,000, plus certain nonconstruction service contracts. The Department of Labor and Industry adopts new rate schedules every year, and the 2026 building, heavy, and highway schedules took effect April 25, 2026. Two things set Montana apart: contractors must give preference to Montana residents (and on state construction projects at least half of each contractor's crew must be residents), and pay rates include travel, zone pay, and per diem tied to dispatch cities.

Montana prevailing wage at a glance
RuleMontana requirement
State lawYes, MCA Title 18, Chapter 2, Part 4
ThresholdPublic works contracts with total cost in excess of $25,000
Who sets ratesDepartment of Labor and Industry, Compliance and Investigations Bureau
Rate schedulesBuilding, heavy, highway, and nonconstruction services; 2026 schedules effective April 25, 2026
Which rates applyRates in effect when the bid specifications are advertised
DistrictsFour prevailing wage districts, with nine dispatch cities
Resident hiringPreference for Montana residents on all public works; at least 50% residents on state construction projects
Pay frequencyHourly employees paid weekly
Record retention3 years after the project's work is completed
PenaltiesBack wages plus $25 per day to the worker; up to 20% to the department; $1,000 liquidated damages, up to $10,000 more for gross negligence

Which Montana contracts are covered

The statute defines a public works contract as a construction services contract let by a public body, or a nonconstruction services contract let by the state, a county, a municipality, or a political subdivision, where the total cost is in excess of $25,000. Construction services means building, heavy, highway, and remodeling work. The definition leaves out engineering, superintendence, management, office or clerical work, consulting contracts, commercial supply contracts, and contracts with state-licensed professionals.

Montana splits construction into three rate books, so the first question on any bid is which one applies. Section 18-2-418 has the contracting agency classify a job based on the preponderance of labor hours. Once it is classified as building, heavy, or highway, every trade on the job is paid from that book. Building work generally means enclosed structures with walk-in access, such as schools, fire stations, and treatment plant buildings. A $600,000 city shop building with some site paving is building construction, and the paving crew is paid building rates.

Montana rates, districts, travel, and per diem

The department surveys and adopts rates yearly, and a schedule stays in force until a newer one replaces it. Under the administrative rules, the rates for a project are the ones in effect when the bid specifications are advertised, so a job advertised in March 2026 uses the prior year's book even if it is built after April 25. Find the current schedules on the department's state prevailing wage rates page.

The state is divided into four districts, and rates can differ by district. Each employer must pay the district rate including fringe benefits, travel allowance, zone pay, and per diem where the schedule lists them. Zone pay is added to the base rate and is measured in road miles from the nearest dispatch city (Billings, Bozeman, Butte, Great Falls, Helena, Kalispell, Miles City, Missoula, or Sidney) to the center of the job. Travel pay is measured from the dispatch city or the employee's home, whichever is closer. Per diem applies when a worker has to stay overnight outside daily commuting distance.

  • Fringe benefits: pay them in cash, into a qualifying plan, or a mix. Contributions must be made at least quarterly. Fringes are paid on all hours but are not part of the base rate for overtime unless a collective bargaining agreement says so. See fringe benefit credit.
  • Overtime: at least 1.5 times the basic hourly rate for hours over 40 in a week.
  • Multiyear contracts: a contract that runs more than 30 months must include a 3% increase to the prevailing rate 12 months after award and every 12 months after that, paid by the contractor and subs, not the agency.
  • Foremen: no separate foreman rate is set, but a foreman doing journey level work gets at least the journey level rate.

Payroll, posting, and apprentice rules

Montana does not publish its own certified payroll form. The department's FAQ describes certified payroll as a signed copy of the weekly payroll and points contractors to the federal WH-347. Under section 18-2-423, the department can require certified copies of payroll records for a project when a complaint is filed, and once a wage complaint is filed the contractor has 5 days from the department's request to produce the records. Many contracting agencies also require regular payroll submittals in their specs, so check the contract.

Contractors and subs must pay hourly workers weekly, keep records for three years after the work is completed, and post a legible statement of all wages and fringe benefits (including travel and per diem) at a prominent spot on the project or staging area no later than the first day of work. Apprentices must be registered in an approved state or federal program. They are paid the percentage in their program, but must receive the full fringe benefit amount. An unregistered apprentice gets the journey level rate. Ratio questions go to the program; see apprentice ratio.

Penalties

An employer that underpays owes the worker the missing wages plus $25 for each day the worker was underpaid. The department can also collect a penalty of up to 20% of the delinquent wages and fringes, plus attorney fees, audit fees, and court costs. Under section 18-2-432, when a contractor fails to comply with the act, the public body keeps $1,000 of the contract price as liquidated damages, and for gross negligence the commissioner can keep up to $10,000 more. The department also keeps a debarment list.

How Montana differs from Davis-Bacon

The Davis-Bacon Act applies to federally funded or assisted construction over $2,000, uses federal wage determinations from SAM.gov, and requires weekly certified payroll. Montana's law covers state and local work over $25,000, uses its own yearly district schedules with travel, zone, and per diem built in, adds the resident preference rule and the 3% multiyear bump, and only requires certified payroll to the state on request. A federal-aid highway job in Montana carries a federal determination as well, so compare both and pay the higher rate.

Before you bid, review Montana contractor registration, Montana lien rights, and Montana prompt payment. Smart Business Automator tracks hours by classification and job and prepares weekly certified payroll, so travel and zone lines are not rebuilt by hand. See certified payroll automation.

Frequently asked questions

What is the prevailing wage threshold in Montana?

Montana's law applies to public works contracts where the total cost of the contract is in excess of $25,000.

When do Montana's 2026 prevailing wage rates take effect?

The 2026 building, heavy, highway, and nonconstruction schedules are effective April 25, 2026. A project uses the rates in effect when its bid specifications were advertised.

Does Montana have its own certified payroll form?

No state form is published. The department describes certified payroll as a signed copy of the weekly payroll and links the federal WH-347. The department can demand certified payroll copies when a complaint is filed.

Do Montana public works contractors have to hire Montana residents?

Every public works contract must give preference to bona fide Montana residents. On state construction projects, at least 50% of each contractor's workers must be residents, except on projects partly funded with U.S. Department of Transportation federal aid.

What happens if a Montana contractor underpays prevailing wage?

The employer owes the unpaid wages plus $25 per day to the worker, and may owe the department up to 20% of the delinquent wages and fringes plus fees and costs.

Sources

  1. Montana Department of Labor and Industry: Public Contracts/Prevailing Wage Law
  2. Montana Department of Labor and Industry: Prevailing wage FAQs
  3. Montana Department of Labor and Industry: Prevailing Wage Rates for Building Construction Services 2026
  4. Montana Code Annotated: 18-2-401 Definitions
  5. Montana Code Annotated: 18-2-423 Submission of payroll records
  6. Montana Code Annotated: 18-2-409 Montana residents on state construction contracts
  7. Montana Code Annotated: 18-2-432 Penalty for violation
  8. U.S. Department of Labor: Davis-Bacon and Related Acts

Laws and rates change. Confirm current requirements with the state agency before you bid, file, or pay. This page is general information, not legal advice.

Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

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