Mauritania Wealth Tax Guide 2026

Overview — No Wealth Tax in Mauritania

Mauritania does not impose an annual tax on net wealth, net worth, or total assets. The only tax related to wealth is the registration duty payable when property is transferred (by sale, gift, or inheritance). Financial assets including cash, bank deposits, listed shares, bonds, and Treasury bills are not subject to any annual wealth or holding tax. There is no solidarity surcharge or wealth-based levy. The government relies on income taxes (IRPP, IS), consumption taxes (TVA), and transaction-based taxes rather than periodic wealth taxes.

Registration Duty — The Wealth Proxy

Registration duty (droit d'enregistrement) at 5% is payable on the transfer of immovable property. While not a wealth tax per se, it is the closest Mauritanian tax to a wealth levy. It applies only when property changes hands, not annually. The duty is calculated on the higher of the purchase price or market value. Reduced rates apply for family transfers (inheritance and gifts to close relatives).

Taxes on Assets vs. No Wealth Tax

While Mauritania has no annual wealth tax, it does impose transaction and income taxes on assets: registration duty of 5% on property transfers, capital gains tax on property disposals (via IRPP or CIT), rental income tax (under IRPP), dividend WHT at 10%, and interest WHT at 10%. These taxes apply when an asset generates income or is transferred, not on the mere holding of the asset.

Wealth Tax Proposals

There has been periodic discussion in Mauritania about introducing a wealth tax to address fiscal deficits, but no concrete proposals have been enacted. The government has focused on improving compliance with existing taxes and broadening the tax base through digitalisation. A comprehensive wealth tax remains unlikely in the near term due to administrative complexity and concerns about capital flight.

FAQs

Do I need to declare my assets annually in Mauritania?

There is no annual wealth declaration requirement for tax purposes in Mauritania. However, anti-money laundering regulations require financial institutions to report large cash transactions.

Are there any taxes on crypto holdings if I don't sell?

No, merely holding digital assets does not trigger any tax in Mauritania. Tax arises only when crypto is disposed of, at which point it may be taxed as income.

Could Mauritania introduce a wealth tax in the future?

While there have been discussions, a wealth tax is not currently under active consideration. The focus is on improving existing tax compliance.

Disclaimer

This guide provides general information about wealth taxation in Mauritania for the 2026 tax year. Tax laws may change. Always consult with a qualified Mauritanian tax advisor or the Direction Générale des Impôts for advice specific to your situation. InvestmentKit does not provide tax advice.