Iowa Workers’ Comp Weekly Benefit Calculator (2025–2026)
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 your state.
Quick Answer
In Iowa, workers’ comp pays 80% of your average weekly spendable earnings — your effective after-tax wage — up to the current state maximum of $2,220 per week (2025 rate, per the Iowa Division of Workers’ Compensation). The minimum benefit is not a fixed dollar floor; it scales with your actual wage and can be as low as your full AWW if your wages are very low. If your calculated benefit exceeds $2,220, you are capped. If it falls below, you receive the calculated amount.
The state maximum is reset each year to 200% of Iowa’s State Average Weekly Wage (SAWW). The 2025 SAWW is approximately $1,110/week, making the cap $2,220. Verify the current figure at iowadivisionofworkerscompensation.gov before relying on this number for legal decisions.
From Shane
Look, when I was out after my 2015 knee injury, I thought “80% of my wages” meant I’d be mostly fine. I wasn’t. Nobody told me the number they were using for my “average weekly wage” was wrong — they cherry-picked 26 weeks that excluded my three biggest overtime months. My actual weekly benefit should have been $112 higher. Over a 14-week recovery, that was $1,568 I never got back because I didn’t know to check the math.
That’s why this page exists. You should know exactly what your check should be before it arrives. If it doesn’t match, you have a problem — and the earlier you catch it, the easier it is to fix. Print this page, run your own numbers, and compare against what you’re actually receiving. If there’s a gap, call a workers’ comp attorney immediately. Most offer free consultations, and in Iowa, attorney fees in comp cases are regulated and capped by the commissioner — you won’t get gouged.
The Exact Iowa Calculation Formula
Step 1: Determine Your Average Weekly Wage (AWW)
Iowa Code § 85.36 governs how AWW is calculated. The default method uses your gross wages from the 13 weeks immediately before your injury, divided by 13.
Formula:
AWW = Total Gross Wages in Last 13 Weeks ÷ 13
If you worked fewer than 13 weeks at that employer, only the weeks you actually worked are counted — you don’t get penalized with zero-week dilution.
If your wages are irregular, Iowa allows the commissioner to use a “fair and reasonable” alternative period or method. This is critical for seasonal workers and gig workers.
Step 2: Convert AWW to Spendable Weekly Earnings (SWE)
Iowa’s 80% figure applies to spendable earnings, not gross wages. This is actually more beneficial than it sounds in most cases, but the insurance company runs the tax calculation — and they sometimes run it wrong.
Iowa uses IRS withholding tables and state tax rates to estimate what you would have taken home. The result is your Spendable Weekly Earnings (SWE).
Formula:
Weekly Benefit = SWE × 80%
In practice, for most workers, SWE is roughly 85–92% of gross wages depending on filing status and dependents. The net effect: your weekly check usually ends up somewhere between 68% and 74% of your gross wages, not a full 80%.
Step 3: Apply the Cap
Weekly Benefit = MIN(SWE × 80%, $2,220)
Any gross weekly wage above approximately $2,775 will hit the cap for a single filer in most scenarios.
How Overtime, Bonuses, and Second Jobs Are Handled
| Wage Component | Included in Iowa AWW? | Notes |
|---|---|---|
| Regular hourly wages | ✅ Yes | Core of calculation |
| Overtime pay | ✅ Yes | Included in gross wages for 13-week period |
| Shift differentials | ✅ Yes | Part of gross earnings |
| Performance bonuses | ✅ If regular/recurring | One-time discretionary bonuses may be excluded |
| Holiday pay / vacation pay paid out | ✅ Yes | Treated as wages |
| Tips (reported) | ✅ Yes | Must be verifiable through W-2 or records |
| Second job wages | ✅ Yes, if employer had notice | Iowa § 85.36 — employer must have known you held concurrent employment |
| Second job wages (no employer notice) | ❌ No | This is a major trap — document that your employer knew |
| Per diem / expense reimbursements | ❌ No | Not wages |
Pre-Calculated Iowa Workers’ Comp Benefit Table (2025)
Assumptions: Single filer, no dependents, standard withholding. Actual spendable earnings vary. Use this as an estimate — run the exact spendable calculation for precision.
| Gross Weekly Wage | Est. Spendable Earnings | Weekly Benefit (80% SWE) | At Cap? |
|---|---|---|---|
| $300 | $284 | $227 | No |
| $400 | $374 | $299 | No |
| $500 | $463 | $370 | No |
| $600 | $551 | $441 | No |
| $700 | $638 | $510 | No |
| $800 | $725 | $580 | No |
| $900 | $810 | $648 | No |
| $1,000 | $894 | $715 | No |
| $1,100 | $977 | $782 | No |
| $1,200 | $1,059 | $847 | No |
| $1,300 | $1,140 | $912 | No |
| $1,400 | $1,220 | $976 | No |
| $1,500 | $1,299 | $1,039 | No |
| $1,600 | $1,376 | $1,101 | No |
| $1,700 | $1,452 | $1,162 | No |
| $1,800 | $1,527 | $1,222 | No |
| $1,900 | $1,601 | $1,281 | No |
| $2,000 | $1,673 | $1,338 | No |
| $2,100 | $1,744 | $1,395 | No |
| $2,200 | $1,813 | $1,450 | No |
| $2,300 | $1,881 | $1,505 | No |
| $2,400 | $1,948 | $1,558 | No |
| $2,500 | $2,014 | $1,611 | No |
| $2,600 | $2,079 | $1,663 | No |
| $2,700 | $2,143 | $1,714 | No |
| $2,800 | $2,206 | $1,765 | No |
| $2,900 | $2,268 | $1,814 | No |
| $3,000 | $2,329 | $1,863 | No |
Note: The $2,220 cap is not triggered until gross wages exceed approximately $3,400–$3,600/week for most single filers, because the spendable conversion reduces the base before the 80% multiplier is applied. High earners and married filers with multiple dependents will hit the cap at different gross wage levels. Workers earning above $2,775/week gross should run an exact spendable calculation using Iowa’s official withholding schedules.
What the Law Says vs. What Actually Happens
The Law Says: Use All 13 Weeks of Actual Earnings
What Actually Happens: Insurers Exclude High-Wage Weeks
This is the single most common AWW error I’ve seen and researched. Insurance adjusters — many handling 150+ claims at once — will sometimes:
- Exclude weeks with overtime, labeling them “anomalous” when overtime was actually routine
- Start the 13-week window after a slow period, shifting the calculation to capture lower-earning weeks
- Ignore a concurrent part-time job you held even when your primary employer clearly knew about it (required on many onboarding forms)
- Use W-2 annual wages divided by 52 instead of the actual 13-week period — which underrepresents you if you took unpaid leave or had a slow stretch early in the year
How to Catch It:
- Pull your paystubs for the 13 weeks before your injury. Add every penny of gross wages.
- Divide by 13. That is your AWW.
- Compare it to the AWW listed in your First Report of Injury or your benefit payment notice.
- If the insurer’s number is lower than yours by more than a few dollars, demand a written explanation of their calculation method.
Real Case Example: Fluctuating Hours + Overtime
Worker: Maria, 38, production line supervisor at a food processing plant in Waterloo, Iowa. Injured her shoulder in March 2025.
Her last 13 weeks of gross wages:
| Week | Gross Pay | Notes |
|---|---|---|
| Week 1 | $1,420 | OT: 8 hrs |
| Week 2 | $1,180 | Regular |
| Week 3 | $1,390 | OT: 6 hrs |
| Week 4 | $980 | Short week (took 2 days PTO) |
| Week 5 | $1,210 | Regular |
| Week 6 | $1,450 | OT: 10 hrs |
| Week 7 | $1,200 | Regular |
| Week 8 | $1,380 | OT: 6 hrs |
| Week 9 | $1,190 | Regular |
| Week 10 | $1,420 | OT: 8 hrs |
| Week 11 | $1,200 | Regular |
| Week 12 | $1,160 | Regular |
| Week 13 | $1,400 | OT: 7 hrs |
| Total | $15,780 |
Correct AWW: $15,780 ÷ 13 = $1,213.85/week
Insurer’s AWW (after excluding 5 OT weeks as “irregular”): $1,153.00/week — a $60.85 weekly shortfall.
Impact over a 16-week recovery: $60.85 × 16 = $973.60 underpaid
Maria’s overtime was not irregular — it was scheduled production overtime that occurred in 8 of 13 weeks. Iowa law requires it be included. Her attorney caught this on day one.
Frequently Asked Questions
Q: Does Iowa workers’ comp pay 80% of my gross wage or net wage?
Direct Answer: Neither, technically. Iowa pays 80% of your spendable earnings, which is a calculated estimate of your after-tax take-home pay.
Detailed Explanation: The Iowa legislature designed the spendable earnings approach to replace what you actually had available to spend, not to punish you by taxing a tax. The insurance company uses IRS federal withholding tables combined with Iowa state income tax rates to estimate what you would have taken home on your AWW. That estimated net — your Spendable Weekly Earnings — is then multiplied by 80%. This system is generally more favorable than a straight 80% of gross because your gross-to-net conversion often puts you above what a flat 80%-of-gross calculation would yield. However, the calculation depends heavily on your claimed dependents and filing status. If the insurer uses the wrong filing status — single instead of married, for example — they underestimate your spendable earnings and underpay you. Always verify that the filing status they used matches your actual W-4.
Q: What if I worked a second job when I got hurt?
Direct Answer: Your second job wages can be included in your Iowa AWW — but only if your primary employer had actual knowledge that you held that second job at the time of your injury.
Detailed Explanation: Iowa Code § 85.36 includes concurrent employment wages in the AWW calculation when the employer had notice. “Notice” has been interpreted broadly by Iowa courts and can include: a disclosed second job on your employment application, a conversation with a supervisor, your schedule showing you were unavailable certain hours, or documentation that HR was aware. If you can establish notice — even informal notice — those wages belong in your AWW. This matters enormously for workers who hold multiple part-time positions. A warehouse worker earning $600/week at their primary job and $350/week at a weekend retail job has a very different AWW than the insurer might calculate if they only look at one paycheck. Document this now. Get a copy of your original employment application and any records showing the employer’s awareness of your other work.
Q: What happens to my benefit if I go back
More Iowa Workers Comp Resources
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