Michigan Overtime Laws: 40-Hour Workweek, Regular Rates & Salaried Rules
An authoritative legal guide to Michigan’s 40-hour overtime requirement under MCL 408.934a, regular rate blending with nondiscretionary bonuses, salaried nonexempt standards, and fluctuating workweek requirements.
Direct Answer Summary
Under the Improved Workforce Opportunity Wage Act (MCL 408.934a), employers must compensate non-exempt employees for all hours worked in excess of 40 hours in a 7-day workweek at a rate of not less than 1.5 times the regular rate of pay. Michigan has no statutory daily overtime requirement. When workers receive nondiscretionary bonuses, shift differentials, or commissions, these amounts must be rolled into the regular rate divisor. Salaried nonexempt workers are entitled to overtime calculated on a 40-hour divisor unless a lawful fluctuating workweek arrangement under 29 CFR § 778.114 is verified.
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1. The 40-Hour Workweek Standard: MCL 408.934a
Michigan overtime compensation is codified at MCL 408.934a. Under subsection (1), an employee not subject to specific statutory exemptions who works more than 40 hours in a 7-day workweek must receive compensation at not less than 1.5 times their regular rate.
Key principles under Michigan law include:
- Workweek Definition: A workweek is a fixed and regularly recurring period of 168 hours (7 consecutive 24-hour periods). It need not coincide with the calendar week.
- No Daily Overtime: Working 12 hours in a single shift does not trigger overtime under Michigan law if the employee works 40 or fewer total hours in that workweek.
- No Averaging Across Pay Periods: Each workweek stands alone. An employer cannot average 30 hours in week 1 and 50 hours in week 2 across a biweekly pay period to evade overtime.
2. Calculating the Regular Rate & Nondiscretionary Bonuses
The "regular rate" is not simply an employee's base hourly wage. Under both Michigan precedent and federal FLSA regulations (29 CFR Part 778), the regular rate includes all remuneration paid to the employee, with narrow statutory exclusions (such as gifts, discretionary holiday bonuses, and premium payments for overtime worked).
Total Straight Time = (Base Hourly Pay × Total Hours) + Nondiscretionary Bonuses
Blended Regular Rate = Total Straight Time ÷ Total Hours Worked
Overtime Premium = Overtime Hours × (Blended Regular Rate × 0.5)
Total Required Earnings = Total Straight Time + Overtime Premium
Excluding nondiscretionary attendance, retention, or productivity bonuses from the regular rate divisor is one of the most common employer wage violations in Michigan.
3. Salaried Nonexempt Employees & The Fluctuating Workweek
Many salaried workers mistakenly believe that receiving a salary forfeits overtime rights. Unless an employee satisfies the strict duties requirements of the executive, administrative, or professional exemptions under MCL 408.934a(4), they are nonexempt and entitled to overtime.
Standard 40-Hour Divisor vs. Fluctuating Workweek (29 CFR § 778.114)
Under the standard method, a salaried nonexempt worker's regular rate is their weekly salary divided by 40 hours. Overtime is paid at 1.5 times this regular rate for each hour beyond 40.
An employer may only use the Fluctuating Workweek (FWW) method (paying half-time for overtime hours) if all strict FLSA requirements are verified:
- Hours must genuinely fluctuate above and below 40 hours per week from week to week.
- The salary is guaranteed and never docked for working fewer hours.
- There is a clear mutual understanding between the parties regarding the pay arrangement.
- The regular rate never drops below the Michigan minimum wage ($13.73 in 2026).
If the salary arrangement is unverified, StateWageCalc.com standards fail closed as Salary Arrangement Unverified rather than assuming an unproven half-time formula.
4. Worked Numerical Examples
Employee works 48 hours. Regular hours: 40 × $18.00 = $720.00. Overtime hours: 8 × (1.5 × $18.00) = 8 × $27.00 = $216.00. Total required pay = $936.00. If paid straight time for all 48 hours ($864.00), confirmed shortfall = $72.00.
Employee earns $20.00/hr, works 50 hours, and receives a $200.00 production bonus. Base straight time = (50 × $20.00) + $200.00 = $1,200.00. Blended regular rate = $1,200.00 ÷ 50 = $24.00/hr. Overtime premium = 10 × ($24.00 × 0.5) = $120.00. Total required pay = $1,320.00.
Salaried nonexempt worker earns $800.00 weekly and logs 45 hours. Regular rate = $800.00 ÷ 40 = $20.00/hr. Overtime rate = 1.5 × $20.00 = $30.00/hr. Overtime pay owed = 5 × $30.00 = $150.00. Total required gross = $950.00.
5. Official Regulatory Authorities & Citations
- Statutory Basis: MCL 408.934a – Michigan Overtime Compensation.
- Federal Alignment: 29 U.S.C. § 207 – Fair Labor Standards Act Section 7.
- Regular Rate Regulations: 29 CFR Part 778 – Overtime Compensation.
- Fluctuating Workweek: 29 CFR § 778.114 – Fixed salary for fluctuating hours.
- State Enforcement: Michigan Department of Labor and Economic Opportunity (LEO) Wage and Hour Division.