2026 tax year · cross-border wages
Crossing a state line into or out of Kentucky
Kentucky taxes its residents on income earned anywhere, and taxes non-residents on work done inside it. Which return you file depends on which direction you commute.
Kentucky borders 9 states. They fall into 3 different situations, and which one applies decides whether you file one return or two.
Where Kentucky has a reciprocity agreement
Kentucky has wage reciprocity with Illinois, Indiana, Michigan, Ohio, Virginia, West Virginia and Wisconsin. Work in one of these and it will not tax your wages at all: you file its exemption certificate with your employer there, which stops its withholding, and report everything to Kentucky. There is no nonresident return.
| Work state | Exemption certificate | Its tax on your wages |
|---|---|---|
| Illinois | IL-W-5-NR | $0 |
| Indiana | WH-47 | $0 |
| Michigan | MI-W4 | $0 |
| Ohio | IT 4NR | $0 |
| Virginia | VA-4 | $0 |
| West Virginia | WV/IT-104R | $0 |
| Wisconsin | W-220 | $0 |
Reciprocity covers wages paid by an employer. It does not cover self-employment income, so a 1099 worker in Kentucky generally still sources income to where the work was done.
Where you file a nonresident return and claim a credit
Kentucky has no agreement with Missouri. Work in one of these and you file a nonresident return there, report the same income again to Kentucky, and claim a credit for what you already paid. The credit is capped at your Kentucky liability, so you are not taxed twice, the combined bill lands at roughly the higher of the two rates.
| Work state | Its tax | Kentucky after credit | Total | Rate that governs |
|---|---|---|---|---|
| Missouri | $3,190 | $0 | $3,190 | Missouri |
Where the work state takes nothing
Tennessee levies no personal income tax, so there is no return to file there and no credit to claim. But Kentucky still taxes the wages as a resident. The catch is withholding: an employer in Tennessee has no state income tax to withhold, so nothing is taken out for Kentucky either. The liability is real and nothing is being set aside against it, which usually means Kentucky estimated payments.
What Kentucky itself takes across a salary range
A single filer, taking the standard deduction. This is the figure every arrangement above is measured against, the tax Kentucky charges a resident, whether the work happened inside the state or over a line:
| Wages | Kentucky tax | Effective rate |
|---|---|---|
| $45,000 | $1,575 | 3.50% |
| $70,000 | $2,450 | 3.50% |
| $120,000 | $4,200 | 3.50% |
Coming the other way: living in a no-income-tax state, working in Kentucky
Tennessee border Kentucky and levy no personal income tax of their own. A resident of Tennessee who works in Kentucky has the simplest arrangement on this page and the least room to improve it: Kentucky taxes the wages earned inside it, $2,450 on $70,000, there is no home-state return, and so there is nothing to claim a credit against. Living across a border that charges nothing does not reduce the Kentucky bill by a cent.
Reciprocity cannot help either, even where Kentucky has agreements: reciprocity shifts the income to the home state's return, and a state with no income tax has no return to shift it to.
What Kentucky charges as your home state
Kentucky applies a single 3.5% rate to taxable income for 2026, so every extra dollar of wages is taxed at the same state rate.
On the 2026 rate itself: reduced from 4% to 3.5% on Jan 1, 2026.
Kentucky also has local income tax that the estimate above does not model, many cities/counties levy occupational tax.. Add it separately for where you live and work.
State income tax on wages only, 2026 rates. Not tax advice, what this does and doesn't cover.