IN-MI reciprocity serves the Michiana corridor - South Bend/Elkhart IN to Niles/Sturgis MI - one of the busiest small-metro interstate commutes in the Midwest.
| Scenario | Form To File | Result |
|---|---|---|
| Live IN, work MI | MI-W4 (to skip MI) | No MI withholding. Pay IN tax only. |
| Live MI, work IN | WH-47 (to skip IN) | No IN withholding. Pay MI tax only. |
OBBBA 2026 (One Big Beautiful Bill Act) raised the federal SALT cap to $40,000. This matters for reciprocity commuters who itemize: your full home-state income tax is now more likely to be fully deductible on federal Schedule A, making the state-level tax difference between your home and work state a real after-tax driver of commute value. Check each state rate: IN top rate 2.95% flat + county (0.5-3%), MI top rate 4.25% flat.
Use the MI-W4 and claim the reciprocity exemption as an Indiana resident. Michigan state withholding stops. If you physically work in a Michigan city with a local income tax, the city tax still applies.
File IN form WH-47 (Certificate of Residence) with your Indiana employer. It stops BOTH Indiana state withholding and Indiana county tax withholding - Indiana is unusual in extending reciprocity to its county income tax.
2.95% flat, down from 3.0% in 2025 under Indiana’s phased cuts. A further cut to 2.9% is scheduled for 2027. Indiana counties add 0.5%-3% local income tax based on your county of residence on January 1.
No. Michigan city income taxes (e.g., Detroit 1.2% nonresident) apply to wages earned inside the city regardless of reciprocity. Niles and Sturgis have no city income tax, so most Michiana commuters are unaffected.
File a Michigan nonresident return (MI-1040 + Schedule NR) showing the wages as exempt under reciprocity to get a full refund, then submit the MI-W4 exemption so future checks withhold Indiana tax.
See exact post-reciprocity paycheck with IN or MI withholding.
Paycheck Calculator →Run the numbers for each state: Indiana Income Tax Calculator · Michigan Income Tax Calculator
Tax calculations are estimates for educational and informational purposes only. This site does not provide tax, legal, or financial advice. Tax laws change frequently. Always consult a qualified tax professional for advice specific to your situation. Data sourced from IRS publications and official state tax authority websites.
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