Pay Frequency and Wage-Payment Lag Requirements in Montana

At a glance

Requirements one by one

The established schedule controls frequency

Mont. Code Ann. § 39-3-204(1), (3) does not set a universal weekly, biweekly, semimonthly, or monthly minimum when the employer has established a pay period and a time when wages become due. If neither exists, the statute supplies a semimonthly presumed pay period rather than leaving the schedule undefined.

The wage definition in Mont. Code Ann. § 39-3-201(3)-(6)(a) confirms that the Act reaches compensation due on schedules ranging from hourly and weekly to monthly or yearly. That list describes ways wages may be calculated or due; it does not replace § 39-3-204's semimonthly presumption when no schedule exists.

Wages are due within ten business days

Section 39-3-204(1) prohibits withholding earned or unpaid wages longer than ten business days after they are due and payable. The Montana Department of Labor and Industry's current Wage and Hour FAQ states the operational rule plainly: an employee must be paid within ten business days after the pay period ends.

A late timesheet may move only to the next pay period

If an employee submits a timesheet after the employer's established processing deadline and cannot be paid within the ordinary ten-day period, § 39-3-204(3) allows payment in the ensuing pay period. The employer may not carry those wages beyond that next period.

The exception depends on an established timesheet deadline and the employee's late submission. It is not a general extension available whenever payroll processing runs behind.

Violations carry a wage-based penalty

Under Mont. Code Ann. § 39-3-206, a violation is a misdemeanor and the employer must pay the employee a penalty of up to 110% of the wages due and unpaid, in addition to the full wages. Section 39-3-208 permits the employee to sue for the wages and penalty, or for the penalty alone if the wages were eventually paid.

An administrative complaint must be filed within 180 days of the default or delay under § 39-3-207. The ordinary recovery lookback is two years, extended to three years for repeated violations. Section 39-3-216 provides for a Department determination, mediation, a contested-case hearing, and judicial review.

What trips people up

The semimonthly language is a fallback, not the universal Montana minimum. It applies only when the employer has not established a pay period or time when wages become due and payable.

The ten-day rule uses business days. Counting ten calendar days understates the lawful processing window when weekends intervene.

A late timesheet does not create an open-ended delay. Even when the statutory exception applies, payment may not be withheld beyond the next ensuing pay period.

Common questions

Must every Montana employer use semimonthly payroll?

No. Semimonthly is the presumed period only when no pay period or due time has been established.

How long may payroll lag after a period ends?

The Department states that payment is due within ten business days after the pay period ends.

What if an employee turns in a timesheet late?

The employer may pay the affected wages in the ensuing pay period if the statutory conditions are met, but may not delay them beyond that period.

Statutes and sources

• Mont. Code Ann. § 39-3-201(3)-(6)(a). Employ, employee, employer, and wage definitions. Official statute (accessed July 12, 2026).
• Mont. Code Ann. § 39-3-204(1), (3). Ten-business-day rule, late- timesheet exception, and semimonthly presumption. Official statute (accessed July 12, 2026).
• Montana Department of Labor and Industry Wage and Hour FAQ. Agency statement that current employees must be paid within ten business days after the pay period ends. Official guidance (accessed July 12, 2026).
• Mont. Code Ann. § 39-3-206. Misdemeanor and employee penalty up to 110% of unpaid wages. Official legacy statute (accessed July 12, 2026).
• Mont. Code Ann. § 39-3-207. Complaint deadline and recovery lookback. Official statute (accessed July 12, 2026).
• Mont. Code Ann. § 39-3-208. Void agreements and employee civil action. Official legacy statute (accessed July 12, 2026).
• Mont. Code Ann. § 39-3-216(1)-(4). Department order, mediation, hearing, and judicial review. Official statute (accessed July 12, 2026).