Net Pay Per Period Calculator
Combine federal, state, and FICA into one percentage if you know your effective withholding, then subtract fixed dollar amounts (401(k), insurance, etc.).
Net pay per period
Flat tax % of gross plus fixed dollar deductions (401k flat, benefits, etc.). Estimate only.
How this is calculated
Tax amount = gross × (tax % ÷ 100). Net pay = gross − tax amount − other deductions. This is a rough model—not payroll-system exact.
When to use it
- Approximating net after a salary change.
- Seeing sensitivity of net pay to withholding percentage.
- Planning cash flow when deductions are fixed per check.
Frequently asked questions
Why is my real net different?
Real checks use bracket tax, pre-tax vs post-tax rows, and rounding. Use this for direction, not exact payroll.
Can tax % exceed 100?
The tool warns above 80% to catch entry errors.
