São Tomé and Príncipe Net Salary Calculator 2026

How is net salary calculated in São Tomé and Príncipe?

In São Tomé and Príncipe, net salary is calculated by subtracting social security contributions (INSS (National Social Security)) and income tax (IRS (Personal Income Tax)) from the annual gross salary.

IRS (Personal Income Tax) uses a progressive scale. Rates range from 0 % for the lowest incomes to 25 % for the highest. Only the portion of income that falls within each bracket is taxed at that rate, never the full salary.

INSS (National Social Security) contributions amount to approximately 4 % of gross salary, funding the pension, healthcare and other social benefits available to employees in São Tomé and Príncipe.

This calculator uses official data from DGRCI São Tomé and Príncipe (dgrci.st) for 2026. Results are indicative; for exact calculations or specific situations (personal deductions, special regimes) consult a tax adviser or the country's tax authority.

The first STN 3,500/year is exempt. The employee contributes 4% to the INSS (pension and health). The employer adds 12%. The new dobra (STN) has been pegged to the euro (1 EUR = 24.5 STN) since 2018, when the old dobra was redenominated (1 STN = 1,000 STD).