This is the row labeled federal income tax withheld, sometimes printed as FIT, sometimes as U.S. income tax. It sits at the head of the required deduction block, above the FICA pair, and the amount beside it is money the employer holds back and sends in for the period rather than paying it to the worker.
Payroll arrives at the figure by taking the taxable wages for the period, matching them against a rate schedule published as tables or as a percentage method, and adjusting for what the employee declared on the form kept in the personnel file. The declared inputs are the filing status, whether another job or a working spouse is involved, and any additional flat amount to take out each period.
The mistake is reading the row as the tax owed. It is one of a series of payments toward a liability settled later, where credits and other income change the arithmetic. A year of withheld amounts that ends below the eventual bill is short; one that ends above it produces a refund. The row is a schedule, not a verdict.
Across a year the row is the least stable of the tax lines. It moves when the declaration changes, when a raise pushes the period into a higher bracket slice, when a bonus arrives, and when a second job withholds as though it were the only one. State and local rows use the same machinery on their own rules and sit beside it.
Withholding on a Bi-Weekly Period
| Line | Amount |
|---|---|
| Gross pay for the period | $2,200 |
| Federal income tax withheld | −$218 |
| State income tax withheld | −$99 |
| Social Security at 6.2% | −$136 |
| Medicare at 1.45% | −$32 |
| Net pay for the period | $1,715 |
Four tax rows subtract from 2,200 and leave 1,715, and the arithmetic closes to the dollar: the deductions total 485. Federal withholding is by far the largest of the four and the only one shaped by a declaration, which is why it is the row people question. The figures are illustrative, not an actual record.
Frequently asked questions
Why did my federal withholding change this period?
The row is derived from the period’s taxable wages and from the declaration on file, so a change in either one moves it. A raise, a bonus, a period with more hours than usual, an unpaid week that shifts the annualization, or a revised form all produce a different figure. If none of those happened and the amount still moved, compare the taxable wages with the gross before assuming the rate changed.
Is withholding the same as the tax I owe?
They are two different quantities that only meet at the end of the year. Withholding is a per-period estimate collected along the way; the liability is computed once, later, on the whole year including income payroll never saw. When the two disagree, one side of the difference is settled or refunded, and the withheld row was never meant to be exact.
Is state income tax part of the same row?
It is printed separately, usually a row or two below the federal amount, because a separate authority sets the rate and a separate account receives the money. States with no wage tax produce no such row at all, and working in a state different from the residence state can generate two sets of rows with a credit mechanism between them. Local and school-district taxes sit in the same block and are often the smallest lines on the page.
Where to read on
- how the form behind the federal row is completed
- the employee declaration the rate schedules are read against
- the two fixed-rate rows that sit below this one
- where each tax row falls between gross and deposit
- generate a pay stub showing your withholding as its own row
- voluntary withholding and wage base in the 25-term glossary