Tax calculators, PDF workspace, currency tools and more — all built for São Tomé & Príncipe. Accurate for DGCI regulations and the STN (Db).
São Tomé and Príncipe's tax system is administered by the Direction Generale des Impots (DGI) and applies a progressive personal income tax known as the Imposto sobre o Rendimento das Pessoas Singulares (IRS) with rates from 0% to 25%, denominated in the São Tomé Dobra (STN). The progressive tax structure features multiple bands that increase from a tax-free threshold through intermediate rates before reaching the top marginal rate of 25%, making it one of the more moderate maximum rates among African island nations. Employees contribute to the Instituto Nacional de Seguranca Social (INSS) for social security, with the combined employee and employer contributions covering pensions, disability, and survivors' benefits. The social security system primarily covers formal sector employees in both the public and private sectors. São Tomé and Príncipe applies a general sales tax on goods and services, with exemptions for essential items including basic foodstuffs and medical supplies. The fiscal year follows the calendar year, and employers must withhold income tax from employee salaries and remit it within established monthly deadlines. As one of Africa's smallest nations, the twin-island archipelago has a service-oriented economy driven by cocoa production, tourism, and fishing. The Dobra is pegged to the Euro through a fixed exchange rate agreement with Portugal, providing monetary stability for the country's small but growing economy. Recent discoveries of offshore oil reserves have the potential to transform the nation's fiscal landscape in the coming years. AfroTools provides free DGI-compliant IRS income tax calculators, INSS contribution tools, currency converters, and salary breakdown calculators for São Tomé and Príncipe. All tools are updated for the current tax year and offered at no cost.
Tools built specifically for São Tomé & Príncipe, plus tools available across all 54 African countries.
Key financial and tax information for São Tomé & Príncipe.
DGCI — São Tomé & Príncipe's revenue and tax administration.
STN (Db) — official currency of São Tomé & Príncipe.
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Rates and rules sourced from DGCI. Updated when legislation changes.
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