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Mongolia vs São Tomé and Príncipe: tax rates compared

Between the two, São Tomé and Príncipe's income tax rate (25%) tops Mongolia's (20%) by 5pp. The 200-country average is 28%: both sit below it. Mongolia's figure is dated 2026-06-08 and São Tomé and Príncipe's 2009-10-08, so the two rates come from different data vintages.

Verified data covers four of the six tracked tax types for both countries; every rate below is cited to its source and dated.

At a glance

0102030405060Income20%25%Corporate25%VAT10%15%Capital Gains10%15%
four shared taxes, side by side
Tax MN STDifference
Income Tax20%25%ST +5 pplargest gap
Corporate Tax25%25%match
VAT10%15%ST +5 pp
Capital Gains Tax10%15%ST +5 pp

Income Tax

Income Tax, side by side
CountryRateSource
Mongolia20%Source: PWC Worldwide Tax Summaries — Mongolia (Individual, Taxes on personal income) · as of 2026-06-08
São Tomé and Príncipe25%Source: Diário da República (official gazette), São Tomé e Príncipe — Lei n.º 11/2009, Código do Imposto sobre o Rendimento das Pessoas Singulares (IRS), Art. 66 · as of 2009-10-08
Difference−5 ppSão Tomé and Príncipe higher

Corporate Tax

Corporate Tax, side by side
CountryRateSource
Mongolia25%Source: Tax Foundation — Worldwide Corporate Tax Rates · as of 2025-01-01
São Tomé and Príncipe25%Source: Tax Foundation — Worldwide Corporate Tax Rates · as of 2025-01-01
Difference0 ppdisplayed rates match

There's no gap here — Mongolia and São Tomé and Príncipe both post a corporate tax rate of 25%. The 201-country average is 22.6%: both sit above it.

VAT

VAT, side by side
CountryRateSource
Mongolia10%Source: PWC Worldwide Tax Summaries — Mongolia (Corporate, Other taxes) · as of 2026-06-08
São Tomé and Príncipe15%Source: Ministério do Planeamento, Finanças e Economia Azul (São Tomé e Príncipe) — Manual do IVA 2023 · as of 2023-06-01
Difference−5 ppSão Tomé and Príncipe higher

Between the two, São Tomé and Príncipe's VAT rate (15%) tops Mongolia's (10%) by 5pp. The 181-country average is 15%: Mongolia sits below it, São Tomé and Príncipe matches the world average. Mongolia's figure is dated 2026-06-08 and São Tomé and Príncipe's 2023-06-01, so the two rates come from different data vintages.

Capital Gains Tax

Capital Gains Tax, side by side
CountryRateSource
Mongolia10%Source: PwC Worldwide Tax Summaries — Mongolia (Individual, Income determination) · as of 2026-06-08
São Tomé and Príncipe15%Source: Diário da República (official gazette), São Tomé e Príncipe — Lei n.º 11/2009, Código do Imposto sobre o Rendimento das Pessoas Singulares (IRS), Articles 27, 69 and 70 · as of 2009-10-08
Difference−5 ppSão Tomé and Príncipe higher

Between the two, São Tomé and Príncipe's capital gains tax rate (15%) tops Mongolia's (10%) by 5pp. The 175-country average is 10.3%: Mongolia sits below it, São Tomé and Príncipe sits above it. Mongolia's figure is dated 2026-06-08 and São Tomé and Príncipe's 2009-10-08, so the two rates come from different data vintages.

Not covered for both countries yet: Crypto Tax, Wealth Tax.