Living in Illinois, working in Michigan
Reciprocal agreement · tax year 2026
You pay Illinois
$3,320
on a seventy-thousand wage
Michigan would want
$2,724
The agreement is worth
$0
in money — the gain is one return, not two
File this
MI-W4
with your employer
What the agreement does for you
- Here is the honest answer for Illinois to Michigan: this agreement saves you paperwork, not money. Illinois charges $3,320 on a seventy-thousand-dollar wage and Michigan would charge $2,724 — less. You would have ended up paying the Illinois amount either way. What you gain is one tax return instead of two, and the right state taking the right amount out of every paycheck.
- Watch what happens as the salary grows. At forty-five thousand dollars Illinois takes $2,083. At a hundred thousand it takes $4,805, while Michigan would have wanted $3,999. The distance between two states is rarely a fixed amount — it is a function of what you earn.
- None of this happens by itself. Living in Illinois, you have to hand your employer the exemption form for Michigan, and keep doing it. Most states want it again each year. Miss it and Michigan withholds from every paycheck as though no agreement existed. You would get it back by filing there, which is the very thing the agreement was meant to spare you.
- For this direction the agreement is procedural rather than pecuniary. Illinois's charge of $3,320 at seventy thousand dollars exceeds Michigan's $2,724, so the resident-credit mechanism would have produced the same total liability without any agreement at all. ⭐ The benefit is real but administrative: a single return rather than a resident-plus-nonresident pair, correct withholding through the year instead of a refund claim against the work state, and no cash-flow cost from over-withholding.
- Scaling matters here: Illinois charges $2,083 on forty-five thousand dollars and $4,805 on one hundred thousand, where Michigan would levy $3,999 on the latter. Because state schedules differ in both rate and structure, the interstate differential is a function of income rather than a constant, and comparisons drawn at a single salary generalize poorly.
- The exemption is elective and employee-initiated: the certificate must be filed with the employer, and most agreement states require renewal annually. ⚠️ Without it on file the employer is obliged to withhold Michigan tax regardless of the agreement's existence, and recovery then requires a nonresident return in Michigan — restoring precisely the compliance burden the agreement removes, with the cash held by the wrong state until the claim is processed.
What lands in your account
A $75,000 salary
Filing as
Paid
$2,232per paycheck
| Take-home, year | $58,025 |
|---|---|
| Tax, year | $16,975 |
| Share of pay taxed | 22.63% |
This is an average rate across all your pay — not the rate on your next dollar.
Illinois against Michigan
A $75,000 salary
Compare with
+$3,581a year in Michigan, once local prices are leveled
| Measure | Illinois | Michigan |
|---|---|---|
| Take-home pay | $58,025 | $58,656 |
| Worth after local prices | $58,697 | $62,278 |
| Share of pay taxed | 22.63% | 21.79% |
| State sales tax | 6.25% | 6% |
| Groceries exempt here | Yes | Yes |
| Clothing exempt at $100 | No | No |
| Property tax rate | 2.01% | 1.25% |
| Price level | 98.9 | 94.2 |
| Housing prices | 92.4 | 78.9 |
| Fuel tax | 49.6¢ | 52.4¢ |
| Tobacco tax | $2.98 | $2.00 |
City income tax excluded. Sales-tax row: state-only. Exemptions: Illinois, Statewide average; Michigan, Statewide average. Clothing: one $100 item; higher prices can change tax.
What you would need there
A $75,000 salary
Moving to
$69,898in Michigan, for the same life
| To match take-home only | $74,045 |
|---|---|
| You could take a cut of | −$5,102 |
| Prices in Michigan | 94 vs 99 |
State taxes and state price levels only. No city tax, and no housing market.
What each state would charge, across the ladder
Reference wages for a single filer, not a claim about anyone's salary. The last column is the difference the agreement actually removes — which is the gap between the two states, not Michigan's whole charge.
| Wage | Illinois charges | Michigan would charge | Agreement is worth |
|---|---|---|---|
| $45,000 | $2,083 | $1,662 | $0 |
| $70,000 | $3,320 | $2,724 | $0 |
| $100,000 | $4,805 | $3,999 | $0 |
What this page cannot tell you
- This covers wages from a job. It does not cover self-employment, rent or investment income — those follow the ordinary rules for Michigan.
- ⚠️ And it is a deal between two states. City and county taxes are not part of it, and several of these states have them.
- Every agreement in this dataset applies to wages and salaries only. Business, rental, gain and investment income sourced to Michigan remains taxable there under ordinary nonresident rules, and a commuter with such income may still owe a Michigan return notwithstanding the agreement.
- ⚠️ Reciprocity binds the state layer only and commonly does NOT extend to municipal or county income taxes — Pennsylvania's local earned income tax is the standard example, remaining payable at the place of employment despite the state-level agreement. Local liabilities are excluded from every figure on this page.