Federal Income Tax (FIT) is the tax your employer withholds from each paycheck based on the information you provided on Form W-4. The amount withheld depends on your filing status, number of dependents, additional withholding, and the current IRS tax brackets (10% to 37% for 2026). Unlike FICA, the amount withheld is an estimate — your actual tax liability is reconciled when you file your annual tax return. If too much was withheld, you get a refund; too little means you owe.
Common paystub code: FWT / FIT / FED
Generate a paystub showing Federal Income Tax (FIT) clearly with our free paystub generator, or browse the full payroll glossary (44+ terms explained).
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