Tax Calculators (2026)

Federal deductions, phaseouts and the cliff edges that quietly raise your marginal rate.

SALT Deduction Calculator How much of your state and local tax payment survives the 30% phaseout. AMT Calculator Alternative Minimum Tax owed once your exemption starts eroding. Tips, Overtime, Car Loan & Senior Deductions Stack all four OBBBA deductions with their separate MAGI phaseouts. Quarterly Estimated Tax Calculator Self-employment tax, income tax and the safe harbor that avoids a penalty. Severance Pay Tax Calculator What actually lands in your account after supplemental withholding.

About these tax calculators

These 2026 tax calculators cover the parts of the federal code where a rule of thumb costs real money: the SALT cap and its 30% phaseout, the Alternative Minimum Tax exemption that erodes above $500,000, the four new OBBBA deductions for tips, overtime, car loan interest and seniors, quarterly estimated taxes for the self-employed, and what actually lands in your account from a severance package. Every constant comes from the IRS Revenue Procedure or Notice that set it, and each page shows the date it was last verified. Nothing you type is transmitted anywhere — the calculations run entirely in your browser. Each page also prints the formula it applies, so you can check the arithmetic yourself rather than take the result on trust.