Disclaimer: This content is for informational purposes only and does not constitute legal advice. I am not a lawyer. Consult a licensed workers’ comp attorney in Michigan before making any claim decisions.
Quick Answer
In Michigan, workers’ comp pays 80% of your after-tax average weekly wage, up to a maximum weekly benefit of approximately $1,132 per week (90% of Michigan’s 2024 State Average Weekly Wage of $1,258.38). The maximum and SAWW update every October 1. Your benefit is calculated from the 39 weeks you actually worked in the 52 weeks before your injury — not a simple last-paycheck snapshot. Michigan’s after-tax calculation method is legally unique and is the single most common source of underpayment disputes.
Sources: Michigan Workers’ Disability Compensation Act (WDCA), MCL 418.351; Michigan Department of Labor and Economic Opportunity (LEO), SAWW Notice 2024.
💬 From Shane
I got my first benefit check and did a double-take. It looked right on the surface — but something was off. My employer had calculated my average weekly wage using only my base hours, cutting out three months of mandatory overtime I’d worked before my injury.
Living on 80% of your income is genuinely hard. If you were already paycheck-to-paycheck, this will hit you fast. Here’s what I wish someone had told me: your benefit is only as accurate as the wage data your employer submits. That data comes from the W-2 information they control. They can get it wrong — sometimes innocently, sometimes not.
Before you do anything else with this guide, pull your last two years of pay stubs and your W-2s. You will need them. The math only protects you if you verify it yourself.
The Exact Michigan Benefit Calculation Formula
Step 1: Determine Your Average Weekly Wage (AWW)
Michigan law (MCL 418.371) calculates your AWW using the 39 weeks you actually worked in the 52 weeks before your date of injury. Weeks you did not work (vacation, layoff, illness) are excluded from the divisor.
Formula:
AWW = Total Gross Wages Earned in Qualifying 39 Weeks ÷ 39
Step 2: Convert AWW to Spendable Earnings (After-Tax)
Michigan is one of the only states that pays benefits based on after-tax wages, not gross wages. The Michigan Workers’ Disability Compensation Agency (WDCA) publishes annual tax conversion tables based on your filing status and number of exemptions. Your spendable earnings will be lower than your gross AWW.
This step is where most calculation errors occur. Employers frequently apply the wrong tax table, use the wrong number of dependents, or skip this conversion entirely and just pay 80% of gross — which actually underpays you because the after-tax percentage of a lower base often results in a different net.
Step 3: Apply the 80% Rate
Weekly Benefit = After-Tax AWW × 0.80
Step 4: Apply the Maximum Cap
Your benefit cannot exceed 90% of Michigan’s SAWW. For the period October 1, 2024 through September 30, 2025, the maximum weekly benefit is $1,132.54 (90% × $1,258.38 SAWW).
There is no statutory minimum benefit beyond what the formula produces. Very low-wage workers receive proportionally smaller benefits.
What Counts in Your AWW — And What Employers Leave Out
| Wage Component | Included in AWW? | Common Employer Error |
|---|---|---|
| Base hourly/salary wages | ✅ Yes | Rarely disputed |
| Mandatory overtime | ✅ Yes | Often excluded — this is illegal |
| Voluntary overtime | ✅ Yes | Frequently excluded |
| Shift differential pay | ✅ Yes | Omitted in many calculations |
| Production bonuses | ✅ Yes | Excluded if labeled “discretionary” |
| Annual/holiday bonuses | ✅ Yes, if regular | Excluded citing “not guaranteed” |
| Second job wages | ✅ Yes, if employer knew | Disputed constantly |
| Tips (if reported) | ✅ Yes | Underreported tips create gaps |
| Employer-paid health premiums | ❌ No | N/A |
| Expense reimbursements | ❌ No | N/A |
Source: MCL 418.371; Michigan WDCA Compliance Manual, 2023 Edition.
Pre-Calculated Michigan Weekly Benefit Table
How to read this table: Benefits are calculated at 80% of a simplified gross-to-spendable conversion for a single filer with one exemption (approximation for illustration). Your actual benefit depends on your specific tax table. Benefits are capped at the 2024–2025 maximum of $1,132.54/week. This table is a planning tool — not a legal determination.
| Gross Weekly Wage | Approx. After-Tax AWW | 80% Benefit | Notes |
|---|---|---|---|
| $300 | $289 | $231 | |
| $400 | $383 | $306 | |
| $500 | $475 | $380 | |
| $600 | $567 | $454 | |
| $700 | $656 | $525 | |
| $800 | $745 | $596 | |
| $900 | $832 | $666 | |
| $1,000 | $917 | $734 | |
| $1,100 | $1,000 | $800 | |
| $1,200 | $1,081 | $865 | |
| $1,300 | $1,160 | $928 | |
| $1,400 | $1,237 | $990 | |
| $1,500 | $1,312 | $1,050 | |
| $1,600 | $1,386 | $1,109 | |
| $1,700 | $1,457 | $1,132 | Cap begins |
| $1,800 | $1,527 | $1,132 | Capped |
| $1,900 | $1,595 | $1,132 | Capped |
| $2,000 | $1,662 | $1,132 | Capped |
| $2,100 | $1,727 | $1,132 | Capped |
| $2,200 | $1,791 | $1,132 | Capped |
| $2,300 | $1,854 | $1,132 | Capped |
| $2,400 | $1,916 | $1,132 | Capped |
| $2,500 | $1,977 | $1,132 | Capped |
| $2,600 | $2,036 | $1,132 | Capped |
| $2,700 | $2,095 | $1,132 | Capped |
| $2,800 | $2,153 | $1,132 | Capped |
| $2,900 | $2,210 | $1,132 | Capped |
| $3,000 | $2,266 | $1,132 | Capped |
After-tax estimates use Michigan state income tax (4.25%), federal withholding, and FICA at standard rates for 2024. Verify your exact spendable earnings using the WDCA’s official tax conversion table.
What the Law Says vs. What Actually Happens
The Law (MCL 418.371)
The statute is clear: AWW is calculated from your actual earnings over 39 qualifying workweeks. All regular compensation is included. The after-tax conversion uses official WDCA tables.
What Actually Happens
Underpayment tactic #1 — Using 52 weeks instead of 39. If you had layoffs, medical leave, or seasonal gaps, using 52 weeks lowers your AWW by inflating the divisor. This is a direct violation of MCL 418.371(1) but it happens regularly.
Underpayment tactic #2 — Excluding overtime. Employers argue overtime was “not guaranteed.” Michigan courts have consistently rejected this argument for mandatory overtime and even for patterns of regular voluntary overtime. If you worked consistent overtime for 20 out of 39 weeks, it belongs in your AWW.
Underpayment tactic #3 — Wrong tax table. Using a single-with-zero-exemptions table for a married worker with three children dramatically understates spendable earnings. Pull the correct WDCA table yourself.
How to catch it: Request a copy of the wage statement (Form WC-100) your employer submitted. You have the right to this document. Cross-reference it line by line against your pay stubs. Any week that appears in their calculation but shows zero wages should be verified — it may be a qualifying workweek they improperly excluded.
Real Case Example: Fluctuating Hours + Overtime
Worker profile: Marcus, a machine operator at a Grand Rapids manufacturer. Date of injury: March 15, 2025. Single filer, two dependents.
Earnings history (last 52 weeks before injury):
- Weeks worked: 41 of 52 (11 weeks unpaid during a factory retooling shutdown)
- Qualifying workweeks under MCL 418.371: 39 (two additional non-shutdown weeks excluded as he was on unpaid personal leave)
- Total gross wages over 39 weeks: $62,400
- Base pay: $49,920
- Mandatory overtime (avg. 6 hrs/week at $33/hr for 28 weeks): $5,544
- Shift differential (night premium, 39 weeks): $3,276
- Annual production bonus paid in January: $3,660
Gross AWW calculation:
$62,400 ÷ 39 = $1,600 gross AWW
After-tax spendable earnings (using WDCA 2025 table, single filer, 2 exemptions):
Approx. $1,386/week spendable
Benefit calculation:
$1,386 × 0.80 = $1,109/week
What Marcus’s employer initially paid: $940/week — because they excluded overtime and the bonus and used 52 weeks in the divisor.
Underpayment per week: $169. Over a 6-month claim: $4,394 in lost benefits.
Marcus caught the error by comparing his pay stubs to the WC-100 form. His attorney filed for a corrected wage calculation, and the insurer adjusted within 60 days.
Frequently Asked Questions
Q: Does Michigan workers’ comp count wages from a second job?
Direct Answer: Yes — if your primary employer knew about your second job at the time of injury, wages from that job are included in your AWW calculation.
Full Explanation: MCL 418.371(3) specifically addresses concurrent employment. If you were working two jobs simultaneously and your primary employer was aware of the second job (even informally), those wages must be included. The practical challenge is documentation. You need pay stubs or W-2s from the second employer to substantiate those wages. If your primary employer denies knowledge of the second job, you may need witness testimony or communications that demonstrate awareness. Insurers routinely dispute this, particularly for gig economy income, independent contract work, or cash-paid jobs. If the second employer income was reported on a 1099 and you can document the consistent earnings pattern, most magistrates will include it. Do not omit second-job income from your wage statement — it is one of the most significant AWW factors for workers in Michigan’s service and construction industries.
Q: How do bonuses affect my Michigan workers’ comp benefit?
Direct Answer: Regular and expected bonuses are included in your AWW. Truly discretionary one-time bonuses may be excluded, but employers misuse this exception constantly.
Full Explanation: Michigan courts have drawn a nuanced line on bonuses. If a bonus is tied to production metrics, attendance, or safety records and you reliably received it every year, it functions as regular compensation and belongs in your AWW. If it is a pure gift bonus — given at management’s sole discretion with no formula, paid some years and not others — it may legitimately be excluded. The distinction is fact-specific and frequently litigated. Courts look at: (1) whether the bonus was promised or expected, (2) whether it was tied to performance criteria, and (3) the historical pattern of payment. A Christmas bonus paid every year for six years is not truly discretionary. Document every bonus with a description of how it was earned. Request your employer’s written bonus policy if one exists. This documentation can be decisive in a wage dispute.
Q: What happens to my benefit if I return to work part-time?
Direct Answer: Michigan allows a partial (differential) benefit when you return to lighter-duty work at reduced wages. You receive the difference between your pre-injury earnings capacity and your current wages.
Full Explanation: Under MCL 418.361(1), if you return to work earning less than you did before the injury, you may be entitled to a weekly differential benefit. This is calculated as 80% of the difference between your after-tax AWW and your current after-tax wages. For example, if your pre-injury after-tax AWW was $900 and you now earn $500 after-tax in a
More Michigan Workers Comp Resources
See Also
- Michigan Workers’ Compensation: The Complete Guide for Injured Workers (2026)
- Michigan Workers’ Comp for Home Health Aides: The Complete 2026 Guide
- Michigan Workers’ Comp for Roofers: The Complete 2026 Guide
- Michigan Workers’ Comp for Security Guards: The Complete 2026 Guide
- How Long Can You Receive Workers’ Comp Benefits in Michigan? (2024 Guide)
Need help finding the right next step?
This article is general educational information, not personal advice. You can use our Contact and Feedback page to report a correction, suggest a topic, or—where available—optionally request a connection with an independent professional.