Indiana Estimated Tax Payments Calculator

2026 rules

Enter your expected income to see what to send Indiana and the IRS each quarter.

Your numbers

Filing status

Self-employment or business profit

W-2 wages

Other income (interest, dividends, gains, rental)

Indiana tax withheld from paychecks

Last year's Indiana tax (total on your return)

Leave at 0 to use this year's estimate only.

Federal tax withheld

Last year's federal tax (Form 1040 line 24)

Local income tax rate

Every Indiana county sets its own income tax rate.

Result

Indiana quarterly payment$520

Projected federal tax (incl. SE tax)$17,147
Projected Indiana tax$2,311
Indiana amount to pay in estimates$2,080
Indiana payment 1 · Apr 15, 2026$520
Indiana payment 2 · Jun 15, 2026$520
Indiana payment 3 · Sep 15, 2026$520
Indiana payment 4 · Jan 15, 2027$520
Federal amount to pay in estimates$15,433
Federal payment · Apr 15, 2026$3,858
Federal payment · Jun 15, 2026$3,858
Federal payment · Sep 15, 2026$3,858
Federal payment · Jan 15, 2027$3,858
First payment, state and federal$4,378

Indiana at a glance

Due dates: Apr 15, 2026, Jun 15, 2026, Sep 15, 2026, Jan 15, 2027
Rates: Indiana has a flat 2.95% income tax.

Indiana tax brackets for 2026

All filers (taxable income)
Rate	Taxable income
2.95%	over $0

Questions

When are Indiana estimated tax payments due for 2026?

Apr 15, 2026, Jun 15, 2026, Sep 15, 2026, Jan 15, 2027.

How much do I need to pay to avoid a penalty?

This calculator uses the federal safe harbor: 90% of this year's tax, or 100% of last year's (110% if your AGI is over $150,000), less withholding. A few states use a different share of the current year's tax, so check the Indiana estimated-tax instructions too.