USUS · 2025 federal + state · Free

Income Tax Calculator USA 2026

Estimate federal income tax, a simplified flat state rate, and FICA — with 401(k), IRA, and HSA reducing AGI in real time.

2025 federal + simplified state + FICA — updates as you type.

Not applied in this simplified model (no credits). For illustration only.

State tax uses a flat effective rate on taxable income — not your actual state brackets. FICA: Social Security 6.2% on wages up to $176,100 and Medicare 1.45% on all wages shown.

Gross income$85,000
Pre-tax deductions (401k + IRA + HSA)$0
AGI$85,000
Standard deduction$15,000
Taxable income$70,000
Federal income tax$10,314
State income tax (9.30% flat)$6,510
FICA (Social Security + Medicare)$6,503

SS $5,270.00 · Medicare $1,232.50

Total tax$23,327
Effective tax rate27.44%
Marginal rate (federal + state on ordinary income)31.30%

Federal 22.00% + state 9.30%

Estimated take-home

$61,674 / yr

$5,139 / month

Federal brackets (2025 · Single)

10%$0 – $11,925
12%$11,926 – $48,475
22%$48,476 – $103,350
Your bracket
24%$103,351 – $197,300
32%$197,301 – $243,725
35%$243,726 – $609,350
37%$609,351+

Disclaimer

This tool is for education only and is not tax advice. State tax uses a single approximate rate, not your actual brackets, credits, or local taxes. Actual liability depends on your full return and IRS and state rules. Cashsembly is not affiliated with the IRS.

Frequently asked questions

How is federal income tax calculated in the US?

Federal income tax is calculated using progressive tax brackets. For 2025, rates range from 10% to 37%. Each portion of your taxable income is taxed at the corresponding rate, not your entire income at one rate.

What is AGI and why does it matter?

AGI (Adjusted Gross Income) is your gross income minus above-the-line deductions like 401(k), IRA, and HSA contributions. AGI determines your eligibility for credits and deductions, and is the base for calculating your taxable income.

Which states have no income tax in 2026?

As of 2026, these states have no state income tax: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming.

What is FICA tax?

FICA stands for Federal Insurance Contributions Act. It includes Social Security tax (6.2% on wages up to $176,100) and Medicare tax (1.45% on all wages). Your employer matches these amounts.

What is the standard deduction for 2025?

The 2025 standard deduction is $15,000 for single filers, $30,000 for married filing jointly, and $22,500 for head of household. Taxpayers aged 65 or older receive an additional $6,000 deduction.

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