Indiana
bonus tax calculator.

Calculate state and January 1 residence-county withholding on a one-time Indiana bonus.

Your cash bonus

Gross bonus ($)

Regular gross already paid in this period ($)

Bonus payment date

Regular pay frequency

Federal methodFederal income tax was withheld from regular wages this or last year, and this bonus is separately identifiedFederal filing status

SS wages BEFORE regular pay and bonus ($)

Medicare wages BEFORE regular pay and bonus ($)

Earlier supplemental wages this year ($)

Federal prior wages exclude both the entered regular pay and bonus. Earlier supplemental wages include common-control employers. W-4 Step 2 is off, adjustments zero. No earlier bonus in this same pay period.

Indiana settings

The state method below is independent of the federal method.

January 1 residence county

Additional income withholding on bonus ($)

Other incremental local / payroll deductions ($)

This is a one-time nonperiodic bonus, so no WH-4 allowances are subtracted. My January 1 residence county is selected below.Payroll confirmed all remaining deductions attributable to this bonus, including zero if none; no duplicated state/county/premium amountsI live and work in Indiana. This is a separately paid cash W-2 bonus AFTER the entered regular wages, in the same payroll period, with no earlier bonus that period. No pretax benefit deductions, state exemptions, stock awards, gross-up or cross-state wages apply.

State treatment of this bonus

Nonperiodic bonuses use the 2.95% state rate and the applicable county rate without subtracting regular WH-4 exemptions.

A worked bonus example

A $5,000 bonus with Marion County selected produces $147.50 state and $101 county withholding.

When this estimate does not apply

County rates are verified through September 2026. October paydates are blocked pending the next county-rate review.

Regular resident W-2 wages, separately paid cash bonus after the entered regular wages, in the same payroll period only. A bonus paid before those regular wages is not supported. No benefit changes, state exemptions, stock awards, gross-up, or earlier supplemental payment in that period. Federal assumptions are shown in the form. Withholding is a payment toward tax, not the final tax bill.

Sources and related tools

Reviewed August 31, 2026. Calculate regular Indiana pay · Federal bonus methods · Coverage and methodology