How the gross-to-net calculation works
This calculator deliberately does not know any country's tax law. It does not look up brackets, allowances or social-security ceilings. Instead you supply a single effective tax rate, and it applies simple arithmetic to your gross annual pay:
tax = gross × effective rateretirement = gross × retirement %net per year = gross − tax − retirement − other yearly deductionsnet per paycheck = net per year ÷ pay periods
The pay-period divisor is 52 for weekly, 26 for every two weeks, 24 for twice a month, 12 for monthly and 1 for annual.
Worked example
Take a gross salary of 85,000, a 24% effective tax rate, a 6% retirement contribution and 1,200 a year of other deductions such as health insurance premiums.
- Tax: 85,000 × 0.24 = 20,400
- Retirement: 85,000 × 0.06 = 5,100
- Net per year: 85,000 − 20,400 − 5,100 − 1,200 = 58,300
- Biweekly paycheck: 58,300 ÷ 26 = about 2,242
- Monthly: 58,300 ÷ 12 = about 4,858
Finding your effective rate
Your effective rate is the total tax withheld divided by gross pay, not your top bracket. Take the year-to-date income tax and social or payroll contributions from a recent payslip, add them up, and divide by year-to-date gross. If your payslip shows 1,700 of tax and payroll deductions on 7,083 of gross for a month, your rate is about 24%. For background on what comes out of a paycheck, see Gross vs Net Pay explained.
Limits and common mistakes
- Pre-tax retirement contributions. The calculator takes tax on the full gross. In many countries a traditional 401(k) or pension contribution lowers taxable income, so your real take-home may be a little higher than shown. If your payslip rate was measured after the contribution, don't enter it twice.
- Graduated tax. A flat rate is an average. A raise taxed at your marginal rate will not raise take-home by
1 − effective rate. - Employer-side costs and bonuses. Employer contributions do not reduce your pay. Bonuses are often withheld at a different rate than salary.
- Extra paychecks. With biweekly pay there are 26 checks, so two months a year contain three. Budget from the annual figure, not from a single month.
Pay-frequency reference
| Frequency | Checks per year | Net on 58,300/yr |
|---|---|---|
| Weekly | 52 | about 1,121 |
| Every 2 weeks | 26 | about 2,242 |
| Twice a month | 24 | about 2,429 |
| Monthly | 12 | about 4,858 |
To turn a salary into an hourly rate, use the salary to hourly calculator. To check a percentage, try the percentage calculator.