The Federal Withholding Calculator projects full-year federal income tax withholding from year-to-date withholding, remaining pay periods, and withholding per paycheck. It then compares that projection with an estimated annual federal tax liability.
This helps employees identify a possible overpayment or shortfall while there is still time to review Form W-4 choices. Enter only federal income tax withholding. The estimate excludes Social Security, Medicare, state, and local withholding and does not reproduce payroll withholding tables.
1. Enter year-to-date withholding
Use the federal income tax withholding total from the latest paystub.
2. Count remaining pay periods
Include paychecks still expected in the calendar year.
3. Enter withholding per paycheck
Use the current federal amount per regular paycheck.
4. Enter annual liability
Use a separate tax estimate.
5. Review the projected gap
Consider rechecking after pay or withholding changes.
A positive difference suggests possible overwithholding; a negative difference suggests a possible shortfall.
Actual withholding can change with pay, bonuses, benefits, and a new Form W-4.
Given: $4,200 withheld, 12 pay periods remaining, $350 per paycheck, and $9,200 estimated liability.
Calculation: Projected withholding = $4,200 + (12 × $350) = $8,400. Difference = $8,400 − $9,200 = −$800.
Result: Projected withholding is $800 below the entered liability.
No. Enter only federal income tax withholding.
Add expected bonus withholding to year-to-date withholding when paid, or adjust the projected total separately.
No. Final liability and payments may change before filing.
No. It is a planning estimate based only on the values entered. A filed return may include rules, limits, elections, phaseouts, and forms that this simplified calculator does not model.
No unless a field explicitly asks for them. These tools focus on federal planning amounts and keep state, local, Social Security, and Medicare taxes separate.