US Federal + Indiana Tax Calculator

Guided estimator · tax years 2023–2025 · IRS + Indiana DOR

📲 Install on iPhone/iPad: tap the Share button, then “Add to Home Screen.”
Step 1 of 90% complete
Federal
$0
Indiana
$0
Combined
$0
    Read before you rely on this. Educational estimator only — not a substitute for filing with the IRS/Indiana DOR or advice from a licensed CPA/EA. Verify all figures. Tax-year 2025 amounts are provisional. County tax rates vary — enter your county's rate.
    Step 1

    Filing status & year

    Start here. These two choices set every bracket, deduction and rate used below.

    Step 2

    Income

    Enter every source of income for the year. Leave anything that doesn't apply at 0.

    taxed at LTCG rates; must be ≤ ordinary dividends
    taxed as ordinary income
    preferential rates
    taxable portion computed (up to 85%)
    flows to income; SE tax from Step 3
    Step 3

    Adjustments to income

    “Above-the-line” deductions that lower your AGI whether or not you itemize.

    Adjustments (Schedule 1, Part II)
    capped at $2,500
    computed from SE net earnings
    Self-employment
    15.3% on 92.35%; SS portion capped at wage base
    Step 4

    Deductions

    Take the standard deduction or itemize — the app uses the larger unless you force one. QBI is here too.

    Standard vs itemized
    additional standard deduction each
    additional standard deduction each
    Itemized (Schedule A)
    deductible only above 7.5% of AGI
    capped at $10,000
    QBI (Section 199A)
    20% of QBI, limited to 20% of (taxable income − net capital gains)
    Step 5

    Credits

    Credits reduce tax dollar-for-dollar. The Child Tax Credit and its phaseout are computed for you.

    $2,000 each; phaseout above 400k MFJ / 200k others
    $500 each; same phaseout
    enter credit amount
    see IRS EITC tables
    Step 6

    Other taxes

    Self-employment tax and the 0.9% Additional Medicare tax are computed automatically. Set the NIIT base here if needed.

    blank = auto (interest + dividends + capital gains)

    Self-employment tax (from Step 3), the 0.9% Additional Medicare tax on high earned income, and NIIT are added automatically and shown on the Review sheet.

    Step 7

    Payments & withholding

    What you've already paid toward federal tax. These determine your refund or balance due.

    Step 8

    Indiana state (Form IT-40)

    Indiana starts from your federal AGI. Enter Indiana-specific add-backs, deductions, exemptions and rates.

    Add-backs & deductions
    see in.gov/dor Schedule 1
    federally-taxed SS is not taxed by Indiana
    max $3,000
    Indiana exemptions (enter counts)
    1 = single, 2 = MFJ
    Rates, credits & payments
    look up your county rate on in.gov/dor
    Step 9

    Review & result

    Your full computation. The Federal / Indiana / Combined totals are in the summary bar above.

    💡 Smart suggestions

    Educational observations only — not financial or tax advice.

    Federal computation sheet
    Indiana computation sheet

    Sources to verify: Federal brackets, standard deductions and LTCG breakpoints — IRS Rev. Proc. inflation releases (irs.gov). Indiana rates, exemptions and county rates — in.gov/dor. 2025 figures are provisional.