Income Tax Calculator 2026
Estimate your federal and state income tax for 2026 using the latest IRS brackets. Works for all 50 states and DC — no registration required.
How to Use the Income Tax Calculator
- Enter your annual gross income (W-2 wages, 1099, or self-employment revenue).
- Select your filing status: Single, Married Filing Jointly, or Head of Household.
- Pick a state to see combined federal + state liability, or choose a no-income-tax state for comparison.
- Review the estimated tax and effective rate, then compare states with the State Tax Burden Calculator.
Income Tax Calculation Formula
Federal tax applies progressive brackets to taxable income (gross income minus the standard or itemized deduction). State tax is then computed on the same or a state-adjusted base using that state's brackets. Total income tax = federal tax + state tax.
taxableIncome = grossIncome - deduction federalTax = sum(bracket_rate × income_in_bracket) stateTax = stateBrackets(taxableIncome) // 0 in no-income-tax states totalTax = federalTax + stateTax
State-by-State Income Tax Differences
States like California and New York levy top marginal rates above 10%, while the nine no-income-tax states (AK, FL, NV, NH, SD, TN, TX, WA, WY) add $0 of state income tax. For remote workers and relocating families, the difference can mean thousands of dollars per year — see our State Tax Burden Calculator to compare total burden including sales and property tax.
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Worked Example
Imagine a single filer in Texas with $80,000 of wages and no other income. Texas has no state income tax, so only federal tax applies. After the 2026 standard deduction of $15,000, taxable income is $65,000. The 2026 brackets are 10%, 12%, 22%, 24%, 32%, 35%, and 37%. The first $11,925 is taxed at 10% ($1,192.50), the next slice up to $48,475 at 12% ($4,386), and the remainder up to $65,000 at 22% ($3,645). Total federal tax is roughly $9,224, an effective rate near 11.5%. A resident of California with the same income would add a sizable state bill on top. The calculator layers federal and state rules automatically and shows both marginal and effective rates.
Common Mistakes to Avoid
A frequent error is treating the marginal bracket as if it applied to all income. Only the portion inside each bracket is taxed at that rate, so a 24% bracket does not mean 24% of everything. People also forget that nine states levy no broad-based income tax: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. New Hampshire taxes interest and dividends but not wages. Another slip is overlooking the standard deduction, which for 2026 is $15,000 single, $30,000 married filing jointly, and $22,500 head of household. Finally, mixing up filing status silently changes every bracket threshold, so confirm your status before reading any number off the table.
When to Consult a Tax Professional
Use the estimate for planning, but bring in an enrolled agent or CPA when your situation gets complicated. Multiple income sources, rental property, stock options, or a side business can move you between brackets in ways a simple calculator cannot capture. If you relocated mid-year across state lines, you may owe part-year returns in two states with differing rules. Foreign income, alimony, or large capital gains also warrant expert review. A professional is worth the fee when the estimated bill exceeds a few thousand dollars or when an audit would be costly. They can also confirm whether itemizing beats the standard deduction in your specific case.
Sources & Further Reading
The federal brackets and standard deduction amounts come from the IRS at IRS.gov. State-specific rates and filing rules are collected by the Federation of Tax Administrators at TaxAdmin.org. For historical and comparative context on state revenues, see the Census Bureau at Census.gov. These are the same figures the calculator uses, so the guidance here stays consistent with the numbers you see on screen.
Disclaimer: SaveTaxUS calculators provide estimates only and do not constitute official tax advice. All calculations run locally in your browser — we never upload your income, property, or financial data.
Data source: Rates are based on publicly available 2026 IRS federal brackets and state tax publications. For formal filing, consult a licensed CPA. Last updated: July 2026.