Take gross pay down to take-home. Stack the deductions — taxes, benefits, retirement — subtract them from gross, and you have net pay. The pattern is just percentages and subtraction, kept tidy and rounded.
The example
Gross $4,000 with tax, retirement, and a fixed benefit deduction.
| A | B | |
|---|---|---|
| 1 | Item | Amount |
| 2 | Gross | $4,000.00 |
| 3 | Tax 18% | −$720.00 |
| 4 | 401(k) 5% | −$200.00 |
| 5 | Benefits | −$150.00 |
| 6 | Net pay | $2,930.00 |
The formula
Subtract each deduction from gross:
How it works
Each deduction is a slice of gross, then subtracted:
- Compute percentage deductions from gross: tax =
gross × taxRate, retirement =gross × rate. ROUND each to 2 decimals. - Add any fixed deductions (benefits, parking) as flat dollar amounts.
- Net pay =
gross − (sum of all deductions). - Keep each deduction in its own cell so the stub is auditable; the net formula just subtracts the column.
This is a simplified model. Real payroll has pre-tax vs post-tax order, wage caps (Social Security), bracketed withholding, and local rules. Use this for estimates and illustration — not as a substitute for payroll software or tax advice.
Try it: interactive demo
Set gross, tax %, retirement %, fixed deductions.
Variations
Pre-tax retirement
Reduce taxable pay first:
Effective take-home %
Net as a share of gross:
Annual from per-period
Scale up:
Pitfalls & errors
Order of deductions matters. Pre-tax items (401(k), some benefits) reduce taxable pay before tax is computed. Model the order your situation actually uses.
Round each deduction. Rounding only the final net can leave the stub’s lines not adding up to the total.
Not tax advice. Real withholding uses brackets and caps. Treat this as an estimate.
Practice workbook
Frequently asked questions
How do I calculate net pay from gross in Excel?
How do I handle pre-tax deductions?
Is this accurate for real payroll?
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