Equatorial Guinea Cross-Border Tax Guide 2026

Overview — Cross-Border Taxation in Equatorial Guinea

Equatorial Guinea's cross-border tax rules are governed by the General Tax Code, CEMAC directives, and applicable double tax treaties. The Ministerio de Hacienda has been strengthening its international tax capacity, including participation in the OECD's BEPS Inclusive Framework. Multinational enterprises operating in Equatorial Guinea — particularly in the oil and gas sector — must comply with transfer pricing documentation requirements, thin capitalisation rules, and withholding tax obligations. Non-residents earning Equatorial Guinea-source income are generally subject to withholding tax at 25%, which may be reduced under applicable treaties. The CEMAC Commission has issued directives harmonising transfer pricing rules and tax procedures across member states. Oil and gas accounts for approximately 90% of exports, making the hydrocarbons sector the dominant focus of cross-border tax compliance.

Transfer Pricing — CEMAC/OECD Guidelines

Equatorial Guinea's transfer pricing rules follow the CEMAC Common Code on Transfer Pricing, aligned with OECD guidelines. Related-party transactions must be priced at arm's length. Related parties include companies under common control, parent-subsidiary relationships, and individuals with significant influence (direct or indirect ownership of 25% or more). Documentation requirements include a master file and local file for groups meeting thresholds. Acceptable methods include CUP, Cost Plus, Resale Price, TNMM, and Profit Split. Advance Pricing Agreements (APAs) are available through the CEMAC Commission. Penalties for non-compliance range from 10% to 40% of the tax adjustment plus interest.

Thin Capitalisation

Equatorial Guinea's thin capitalisation rules limit interest deductions on related-party debt. The maximum allowable debt-to-equity ratio is 1.5:1. Interest on debt exceeding this ratio is disallowed as a deduction and may be reclassified as a dividend for withholding tax purposes. The rules apply to all related-party debt, including loans from foreign parent companies and sister companies. Certain long-term financing from approved financial institutions and public infrastructure projects may be exempt. The DGI may also apply general anti-avoidance rules where debt arrangements lack commercial substance.

Withholding Taxes to Non-Residents — 25% Uniform Rate

Payments to non-residents from Equatorial Guinea-source income are subject to withholding tax at a uniform 25% rate:

• Dividends — 25% (may be reduced under applicable DTTs)
• Interest — 25%
• Royalties — 25%
• Management and technical fees — 25%
• Branch profits remittance — 15%
• Rental income (non-resident landlord) — 25% withholding as final tax

The person making the payment must withhold the tax and remit it within 15 days of payment. Treaty relief requires the non-resident to provide a Certificate of Tax Residency.

Controlled Foreign Company (CFC) Rules

Equatorial Guinea's CFC rules (under CEMAC directive) attribute certain passive income of a foreign company to its Equatorial Guinea resident shareholders where the foreign company is controlled by residents. A foreign company is a CFC if residents hold more than 50% of the shares, voting rights, or entitlements to profits. The attributed income includes dividends, interest, royalties, rent, and capital gains of the CFC — but only if the foreign jurisdiction has a preferential tax regime (effective tax rate less than half of Equatorial Guinea's standard CIT rate of 35%). Active business income of the CFC is not attributed.

CEMAC Regional Integration

Equatorial Guinea benefits from the CEMAC regional integration framework for cross-border taxation within the region:

• No withholding tax on dividends, interest, or royalties paid to residents of other CEMAC countries (under the CEMAC non-discrimination principle)
• Common external tariff (CET) for imports from outside CEMAC
• Harmonised corporate tax base and VAT rules across CEMAC
• Coordination of tax audits for companies operating in multiple CEMAC states
• Regional dispute resolution mechanism through the CEMAC Commission
• BVMAC regional stock exchange for capital raising within CEMAC

Oil & Gas Production-Sharing Contracts

The oil and gas sector dominates Equatorial Guinea's cross-border tax landscape. International oil companies operate under production-sharing contracts (PSCs) with the government, which contain specific fiscal terms including the applicable CIT rate (65–75%), cost recovery limits, and royalty rates. These contractual terms override the standard tax provisions in many cases. The Ministry of Mines and Hydrocarbons and GEPetrol (the state oil company) manage the government's interests. Transfer pricing for oil and gas transactions is subject to particular scrutiny given the high value of intra-group transactions.

FAQs

Do I need to register for tax in Equatorial Guinea as a non-resident investor?

Non-residents earning Equatorial Guinea-source income generally do not need to register if the income is subject to final withholding tax. However, a non-resident with a permanent establishment must register and file corporate tax returns.

How do I claim a refund of excess WHT?

A non-resident may claim a refund if WHT was deducted at the full statutory rate when a reduced treaty rate should have applied. The refund claim is submitted with supporting documents.

Does Equatorial Guinea have a General Anti-Avoidance Rule (GAAR)?

Yes, the General Tax Code includes a GAAR that allows the tax authority to recharacterise transactions entered into for tax avoidance purposes.

Disclaimer

This guide provides general information about Equatorial Guinea cross-border taxation for the 2026 tax year. Tax laws and treaty provisions may change. Always consult with a qualified Equatorial Guinean international tax advisor or the Ministerio de Hacienda for advice specific to your situation. InvestmentKit does not provide tax advice.