How It Works
Federal bracket estimate uses wages−traditional 401(k) deferral−basic standard deduction. Social Security=6.2% of wages up to $184,500 in 2026; Medicare=1.45% of wages.
Additional Medicare liability=0.9% above $200,000 single/head, $250,000 joint or $125,000 separate. Actual employer withholding rules differ from annual liability.
Scope and Limitations
- Under-65 ordinary-wage estimate with no tax credits, AMT, capital gains, dependent rules or special deductions. Enter state/local effective rate yourself; employer-specific benefits and W-4 withholding are not calculated. Models one employee only; other household income and a spouse’s separate payroll-tax base are not included.
Reference Sources
- IRS Revenue Procedure 2025-32: 2026 tax brackets and standard deductions
- SSA: 2026 contribution base
- IRS: Additional Medicare Tax
FAQs
How does this calculator work?
Federal bracket estimate uses wages−traditional 401(k) deferral−basic standard deduction. Social Security=6.2% of wages up to $184,500 in 2026; Medicare=1.45% of wages.
What assumptions should I check?
Under-65 ordinary-wage estimate with no tax credits, AMT, capital gains, dependent rules or special deductions. Enter state/local effective rate yourself; employer-specific benefits and W-4 withholding are not calculated. Models one employee only; other household income and a spouse’s separate payroll-tax base are not included. Additional Medicare liability=0.9% above $200,000 single/head, $250,000 joint or $125,000 separate. Actual employer withholding rules differ from annual liability.