Factors Affecting Withholding
The amount of federal income tax withheld from an employee's taxable wages depend on number of factors:
- The marital status claimed on the employee's form W- 4.
- The number of withholding allowance claimed on the employee's form W- 4.
- Pay frequency (weekly, biweekly, semimonthly, etc.)
- Whether the wages are regular or supplemental.
- Any pretax deductions, example: 401(k) contributions.