How this number is made
Most payslips are gross pay minus income tax, minus the employee’s social contribution, minus a pension, minus anything else that leaves before the bank transfer. If you know the percents that actually hit your check, the net is arithmetic. You do not need another country’s bracket table.
- Use your effective income-tax rate: tax paid divided by gross, not the highest band on a poster.
- Social contribution is the employee share only. The employer’s share never entered your gross.
- Put union dues, garnishments, or a fixed health premium in the other-deduction field, in the same period as the gross.
Formula
Net = gross × (1 − income tax − social contribution − pension) − other deductions. A yearly gross is divided by 12 for the monthly line.
Worked example
€4,000 a month with 20% income tax, 12% social contribution, and 5% pension leaves €2,520. Tax is €800, social contribution €480, pension €200. The year is €48,000 gross and €30,240 net.
Questions
Why not use the US paycheck page?
That page is 2026 federal brackets, FICA, and a state percent. It will mis-state a salary in another country. Use this page when the tax is best described as a percent of gross.
What if my country has brackets?
Estimate the effective rate from a recent payslip: income tax on the stub divided by gross. Type that percent. It will drift if a raise pushes you into a new band.