How the Texas estimate works
Enter gross pay for one pay period, federal W-4 adjustments, and the state details shown above. Federal withholding follows Publication 15-T and FICA applies to current and year-to-date wages. Texas individual state income tax is shown as zero; the page does not describe the paycheck as tax-free.
Example: For a biweekly entry, Publication 15-T uses 26 pay periods for the federal calculation while Social Security and Medicare apply to the current paycheck and applicable wage-to-date limits. The calculator does not assume any unentered benefit deduction or invent a tax result.
Weekly, biweekly, semimonthly, and monthly are the supported paycheck frequencies. “Annual salary” is an earnings input and the annual view is a simple period multiplication; neither is an annual payroll-period method. The special Form W-4 adjustment for nonresident aliens is not modeled.