Living in Indiana, working in Kentucky
Reciprocal agreement · tax year 2026
You pay Indiana
$2,036
on a seventy-thousand wage
Kentucky would want
$2,332
The agreement is worth
$297
a year
File this
K-4
with your employer
What the agreement does for you
- This one pays. Living in Indiana and working in Kentucky, a seventy-thousand-dollar wage owes $2,036 at home. Kentucky would have charged $2,332. The agreement means you pay the lower one, keeping $297 a year that would otherwise have gone across the border.
- It does not stay the same as you earn more. On forty-five thousand dollars the Indiana bill is $1,298; on a hundred thousand it is $2,921. Kentucky would have charged $3,382 at that higher wage. The two states pull apart as the salary rises, which is why this matters more to a senior job than a starter one.
- None of this happens by itself. Living in Indiana, you have to hand your employer the exemption form for Kentucky, and keep doing it. Most states want it again each year. Miss it and Kentucky 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.
- The Indiana–Kentucky agreement delivers a substantive reduction for this direction of travel. On seventy thousand dollars of wages the home charge is $2,036 and the work state's would be $2,332, a spread of $297. ⚠️ The spread, not the work state's gross figure, is the correct measure: the ordinary resident-credit mechanism would otherwise leave a commuter paying approximately the higher of the two amounts in total across both returns.
- The differential is income-dependent rather than fixed. Indiana's liability runs $1,298 at forty-five thousand dollars and $2,921 at one hundred thousand, against $3,382 in Kentucky at the upper figure. Where one state applies a flat rate and the other a graduated schedule the gap widens or narrows monotonically with income, so a single-salary comparison understates how much the pairing matters across a career.
- 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 Kentucky tax regardless of the agreement's existence, and recovery then requires a nonresident return in Kentucky — 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
$2,285per paycheck
| Take-home, year | $59,410 |
|---|---|
| Tax, year | $15,591 |
| Share of pay taxed | 20.79% |
This is an average rate across all your pay — not the rate on your next dollar.
Indiana against Kentucky
A $75,000 salary
Compare with
+$864a year in Kentucky, once local prices are leveled
| Measure | Indiana | Kentucky |
|---|---|---|
| Take-home pay | $59,410 | $59,085 |
| Worth after local prices | $64,447 | $65,311 |
| Share of pay taxed | 20.79% | 21.22% |
| State sales tax | 7% | 6% |
| Groceries exempt here | Yes | Yes |
| Clothing exempt at $100 | No | No |
| Property tax rate | 0.74% | 0.75% |
| Price level | 92.2 | 90.5 |
| Housing prices | 71.4 | 62.9 |
| Fuel tax | 37¢ | 25¢ |
| Tobacco tax | $3.00 | $1.10 |
City income tax excluded. Sales-tax row: state-only. Exemptions: Indiana, Statewide average; Kentucky, Statewide average. Clothing: one $100 item; higher prices can change tax.
What you would need there
A $75,000 salary
Moving to
$73,831in Kentucky, for the same life
| To match take-home only | $75,485 |
|---|---|
| You could take a cut of | −$1,169 |
| Prices in Kentucky | 90 vs 92 |
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 Kentucky's whole charge.
| Wage | Indiana charges | Kentucky would charge | Agreement is worth |
|---|---|---|---|
| $45,000 | $1,298 | $1,457 | $159 |
| $70,000 | $2,036 | $2,332 | $297 |
| $100,000 | $2,921 | $3,382 | $462 |
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 Kentucky.
- ⚠️ And it is a deal between two states. City and county taxes are not part of it, and several of these states have them.
- The comparison here assumes a single filer and treats both states as taxing the same income. Your own numbers will differ.
- Every agreement in this dataset applies to wages and salaries only. Business, rental, gain and investment income sourced to Kentucky remains taxable there under ordinary nonresident rules, and a commuter with such income may still owe a Kentucky 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.
- Figures are computed for a single filer at the stated wage, treating Indiana's and Kentucky's definitions of taxable income as equivalent and modeling the resident credit as limited to the home state's own liability. Real returns diverge on filing status, deductions each state allows separately, and credit limitation rules — so these are comparative magnitudes, not a computation of anyone's liability.