Brunei taxes resident and non-resident companies on Brunei-source income, with individuals subject to no personal income tax at all. Brunei has no CFC regime. Brunei operates a self-assessment system for corporate tax.
The Brunei tax year follows the company's own fiscal year (calendar year is common).
Brunei's headline corporate income tax (CIT) rate is 18.5% (55% for petroleum operations).
0% - Brunei has no personal income tax; this applies regardless of nationality or residency status.
0% - Brunei has no VAT, GST, or general sales tax; excise duties apply to specific goods (tobacco, alcohol, motor vehicles, petroleum products) but there is no broad-based consumption tax.
In a distinctive feature of Brunei's tax system, the Income Tax Act's provisions do not apply to the personal income of individuals - arriving in and living in Brunei creates no personal income tax obligation whatsoever, irrespective of duration of stay. Tax is assessed and collected solely on the income of companies. A company is resident in Brunei if it is managed and controlled there. Both resident and non-resident companies (including branches) are taxed on income accruing in or derived from Brunei, or received in Brunei from abroad.
A non-Brunei entity has a Brunei permanent establishment through a fixed place of business or a dependent agent habitually concluding contracts in Brunei on the entity's behalf, following the OECD Model Treaty definition as applied under Brunei domestic law and any applicable tax treaty.
Brunei has no special rules for taxing the undistributed income of foreign subsidiaries. A corporation, whether Brunei-resident or not, is instead taxed on foreign income only when that income is actually received in Brunei - a remittance-basis approach for foreign income rather than CFC-style attribution of undistributed foreign profits.
No statutory thin capitalization ratio is identified in available sources. A related but distinct mechanism was found: foreign tax relief for tax paid on foreign-source income in a Commonwealth country offering reciprocal relief is limited to tax assessed at one-half of Brunei's own tax rate.
Brunei does not use an elective check-the-box classification system; entity classification generally follows the entity's actual legal characteristics. Brunei does not have a comprehensive ATAD2-style anti-hybrid regime.
No foreign bank account or foreign financial asset reporting regime exists requiring residents to separately disclose foreign accounts; consistent with Brunei's territorial system, foreign-source income falls outside the Brunei tax base entirely and is not reported on the annual tax return at all.
Brunei does not provide a broad participation exemption for foreign dividends in the European sense; relief from double taxation is available primarily through Brunei's foreign tax credit system.
Brunei has a foreign tax credit mechanism for foreign tax paid on foreign-source income also taxed in Brunei, capped at the Brunei tax otherwise due on that income.
Brunei has approximately 18 double taxation agreements in force, including the UK, Indonesia, China, Singapore, Vietnam, Bahrain, Oman, Japan, Pakistan, Malaysia, Hong Kong, Laos, Kuwait, Tajikistan, Qatar, and the UAE, per the U.S. State Department's Investment Climate Statement and TaxAtlas. Brunei has no comprehensive tax treaty with the United States. The Ministry of Finance and Economy (MOFE) website is the official, authoritative source for the current, complete list of signed and ratified treaties - preferred over third-party compilations, which may not reflect recently concluded or updated agreements.