Federal Income Tax Calculator 2026
Estimate federal income tax for 2026 using the projected IRS brackets and standard deduction. Supports all four filing statuses and pre-tax 401(k)/HSA adjustments.
FINANCEEstimate your 2026 federal income tax using the projected IRS brackets and 2026 standard deduction. Supports single, married filing jointly, married filing separately, and head of household.
Uses progressive brackets stacking: each band of income is taxed at its marginal rate. Pre-tax contributions (Traditional 401(k), HSA, FSA) reduce AGI and therefore taxable income. The standard deduction in 2026 is projected at $15,750 single / $31,500 MFJ. Marginal vs effective rate: marginal is the rate on the next dollar earned; effective is total tax divided by gross income.
Federal Income Tax Calculator (2026)
Estimate your 2026 federal income tax using the IRS projected brackets and standard deduction. Does not include FICA (Social Security + Medicare), state income tax, or refundable credits.
2026 brackets projected per IRS indexing rules. Does not include FICA (7.65% on wages up to the SS wage base), state income tax, NIIT, AMT, refundable credits (EITC, CTC), or capital gains. For an accurate filing, use tax software or consult a CPA.