{"slug":"income-tax-usa","name":"United States Income Tax Calculator (2026)","category":"earn","tags":["tax","income"],"aliases":["United States tax calculator","tax calculator United States","United States income tax","income tax United States","income tax calculator United States","United States income tax rate","income tax United States rate","how much is income tax in United States","United States tax income","United States salary tax"],"region":"US","tagline":"2026 United States income tax: tax owed, effective rate, marginal rate, and take-home pay.","endpoint":"https://xearno.tools/api/v1/tools/income-tax-usa","page":"https://xearno.tools/t/income-tax-usa","description":"Computes United States personal income tax for 2026 using the official progressive brackets, and explains the number the way it actually works: your marginal rate versus your effective rate, how far you are from the next bracket, and exactly what this model excludes.","inputSchema":{"type":"object","properties":{"annualIncome":{"description":"Annual income (USD)","type":"number","minimum":0,"default":75000},"deduction":{"description":"Deductions (USD) Prefilled with the standard deduction/allowance.","type":"number","minimum":0,"default":16100}},"required":[],"additionalProperties":false},"methodology":["Cumulative progressive calculation: each slice of taxable income is taxed at its bracket's rate — 10% up to 12,400, 12% up to 50,400, 22% up to 105,700, … up to 37% at the top. Taxable income = annual income − deductions.","Basis: IRS Rev. Proc. 2025-32 (tax year 2026), single filer. Bracket tables are updated when the jurisdiction publishes new rates; the tax year is stated in the tool name so you never mistake stale rates for current ones.","Scope: personal income tax only. Excluded: state income tax, FICA (Social Security + Medicare), and credits; single filer with the standard deduction. Real filings involve credits, reliefs, and personal circumstances this calculator deliberately does not guess at."],"usage":"POST https://xearno.tools/api/v1/tools/income-tax-usa with a JSON body matching inputSchema."}