Source-cited draft: corporate income tax for Brunei (tax year 2025) — rates, thresholds and rules with primary-source citations. Unverified; pending local-accountant review.
Source-cited draft.Written from sources but not reviewed by a licensed practitioner, so it may be incomplete or wrong. General reference only; don't file or take a position on it without professional review.
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Every figure is drawn from this Tax Guide and cited to its source.
Standard corporate income tax rate
18.5%Income Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/taxes-on-corporate-income
Threshold relief on first BND 100,000 of chargeable income
First BND 100,000 effectively taxed on 25% of chargeable income (i.e. reduced effective rate) (approx — confirm mechanism)Income Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/taxes-on-corporate-income
Threshold relief on next BND 150,000 of chargeable income
Next BND 150,000 effectively taxed on 50% of chargeable income (approx — confirm mechanism)Income Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/taxes-on-corporate-income
Chargeable income above BND 250,000
Taxed at the full 18.5% statutory rateIncome Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/taxes-on-corporate-income
MSME turnover exemption
Companies with gross sales / turnover not exceeding BND 1,000,000 are exempt from corporate income taxIncome Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/taxes-on-corporate-income
Newly incorporated company exemption
First BND 100,000 of chargeable income exempt for the first three consecutive years of assessmentIncome Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/taxes-on-corporate-income
Oil and gas exploration and production rate
55%Income Tax (Petroleum) Act (Cap. 119) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/taxes-on-corporate-income
Tax base
Chargeable income = Brunei-source income and gains of an income nature, less allowable deductions and capital allowancesIncome Tax Act (Cap. 35)
Withholding tax on dividends
0% — no withholding tax on dividends paid to non-residentsIncome Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/withholding-taxes
Withholding tax on interest to non-residents
2.5%Income Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/withholding-taxes
Withholding tax on royalties to non-residents
10%Income Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/withholding-taxes
Withholding tax on technical fees / management fees to non-residents
10%Income Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/withholding-taxes
Withholding tax remittance deadline
Within 14 days of payment, remitted to the Collector of Income TaxIncome Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/withholding-taxes
Estimated Chargeable Income (ECI) deadline
Within 3 months after the end of the accounting periodIncome Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/tax-administration
Corporate return filing and payment deadline
Return filed and tax paid by 30 June of the year of assessmentIncome Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/tax-administration
Late payment penalty
5% penalty on unpaid tax, plus an additional 1% per month if unpaid after 60 days, capped at 12% additional (approx — confirm)Income Tax Act (Cap. 35) — https://taxsummaries.pwc.com/brunei-darussalam/corporate/tax-administration
Rendered from the canonical facts model. General reference only — confirm with a qualified professional before acting.
Brunei's standard corporate income tax rate is 18.5% for resident and non-resident companies. Generous start-up and MSME reliefs apply, and oil and gas upstream profits are taxed at a much higher special rate. Figures should be confirmed against the current Income Tax Act and MoFE guidance.
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Other Brunei computations in the OpenAccountants Tax Library.