US Income Tax Calculator

Marginal: your tax rate on the NEXT dollar earned (22% if in 22% bracket). Effective: total tax / total income (typically 10–20%). Your marginal rate is higher; don't confuse them.

2024: standard $13,850 single, $27,700 married. Itemize if deductions > standard (mortgage interest, state taxes capped $10k, charitable). Most itemize now post-TCJA.

Above-the-line: 401k, IRA contributions, student loan interest, HSA, etc. These reduce AGI directly. Reduce tax + FICA. Itemized deductions then further reduce taxable income.