Belgium Transfer Pricing Guide

Arm's Length Principle and Specific Belgian Rules

• Article 185, §2 WIB/92 — the arm's length clause: Belgian law codifies the arm's length principle in Article 185, §2 of the Belgian Income Tax Code (WIB/92). The provision states that: "Where an associated enterprise carries on business with another associated enterprise under conditions different from those that would be made between independent enterprises, any profits that would have accrued to one of the enterprises but have been shifted to the other may be included in the profits of the first enterprise." This mirrors the OECD Model Tax Convention Article 9. The burden of proof shifts to the taxpayer to demonstrate that the transaction price is at arm's length — if the FOD Financiën / SPF Finances challenges the pricing.
• Secret commission rule (Article 57 WIB/92): Belgium has a unique secret commission rule — payments (commissions, brokerage fees, intermediaries' fees) made to a non-resident recipient are non-deductible if the recipient is not specifically identified by name and address in the tax return or supporting documentation. The rule is designed to prevent undisclosed cross-border payments. To ensure deductibility, the taxpayer must: (a) identify the recipient by name, address, and amount in the annual tax return, (b) retain a written agreement or invoice showing the service provided, (c) demonstrate that the service was actually rendered and the fee was at arm's length. The penalty for non-compliance is the denial of the deduction (the payment is added back to taxable income).
• Belgian TP Decree of 22 February 2023: The Royal Decree of 22 February 2023 clarified the Belgian TP rules for intangible transactions — implementing the OECD BEPS Action 8-10 guidelines on hard-to-value intangibles (HTVI). The decree introduces: (a) the "commensurate with income" standard — the return on intangibles must be consistent with the income they generate over their economic life, (b) the DEMPE analysis requirement (Development, Enhancement, Maintenance, Protection, Exploitation) for intangible-related transactions, (c) the specific documentation requirements for cost contribution arrangements (CCAs) and royalty payments.

Documentation Requirements

• Three-tier documentation (OECD BEPS Action 13): Belgium requires the standard three-tier OECD TP documentation: (a) master file — a high-level overview of the multinational group's business, its global TP policies, and its allocation of income and economic activity, (b) local file — a detailed analysis of the Belgian entity's related-party transactions, including a functional analysis, benchmarking study, and transfer pricing documentation for each material transaction, (c) country-by-country (CbC) report — for groups with consolidated group revenue of €750M or more in the preceding financial year. The CbC report is filed with the National Bank of Belgium (NBB) and shared automatically with tax authorities in other jurisdictions under the OECD CbC Reporting framework.
• Filing deadlines: The master file and local file must be available within 30 days of a request from the Belgian tax authorities. They do not need to be filed automatically with the annual tax return — but must be maintained and ready for inspection. The CbC report must be filed within 12 months of the end of the group's financial year. The Belgian entity must also file an annual TP information return (the "281.XX" form for payments to related parties) with the corporate tax return.
• Penalties for inadequate documentation: If the taxpayer fails to provide adequate TP documentation within 30 days of a request, the tax authorities may apply: (a) a 10% surcharge on the additional tax assessment resulting from the TP adjustment, (b) a 50% surcharge if the documentation is deliberately incomplete or misleading (the "kwade trouw" / "mauvaise foi" — bad faith penalty). The documentation must include a benchmarking study (a search for comparable independent transactions) for each material related-party transaction.

Advance Pricing Agreements (APAs) and Rulings

• Dienst Voorafgaande Beslissingen (DVK) / Service des Décisions Anticipées (SDA): The Belgian Ruling Commission (the Advance Decision Service) can issue binding advance pricing agreements (APAs) and advance tax rulings (ATRs) on transfer pricing matters. The ruling process is: (a) the taxpayer submits a ruling request (the "aanvraag voorafgaande beslissing" / "demande de décision anticipée") describing the transaction, the proposed TP method, and supporting documentation, (b) the Ruling Commission reviews the request within 3–6 months, (c) if approved, the ruling is binding on the tax authorities for the period specified (typically 3–5 years). The ruling can cover: the TP method for intercompany transactions, the profit split for a Belgian permanent establishment, the valuation of intangibles, and the terms of a cost contribution arrangement.
• APA application fee: There is an application fee of €12,500 for bilateral or multilateral APA requests (involving a tax treaty partner). Unilateral APAs (Belgian-only) are subject to a fee of €6,250. Small and medium-sized enterprises (SMEs) — as defined under Belgian law — pay a reduced fee of €2,000 for unilateral APAs. The fee is non-refundable regardless of the outcome. The ruling is published in an anonymised form on the Ruling Commission website.

Specific TP Risk Areas in Belgium

• Management fees: Belgium has strict rules on management fees (intragroup service fees). The 2021 circular clarified that: (a) management fees must be supported by a detailed service agreement and a functional analysis, (b) the service must provide a "real and tangible benefit" to the Belgian entity, (c) the fee must be at arm's length (typically cost-plus 5–10%). If the service is duplicative or provides only a "shareholder benefit" (the cost of being part of a group), the fee is non-deductible. The FOD Financiën frequently challenges management fee deductions.
• Royalty payments and ATAD: Royalty payments to related parties are subject to: (a) the ATAD interest limitation rule (the 30% EBITDA cap — interest and royalty deductions are limited to 30% of tax-adjusted EBITDA), (b) the specific Belgian "anti-abuse" rule under Article 198, §1, 9° — payments to related parties in low-tax jurisdictions (tax rate <15%) or countries on the EU blacklist are non-deductible unless the taxpayer demonstrates valid business reasons, (c) the ATAD anti-hybrid rules — payments that are deductible in Belgium but not included in the recipient's taxable income (hybrid mismatches) are denied deduction.
• Financing transactions (thin capitalisation): Belgium's thin capitalisation rules limit the deductibility of interest on loans from related parties: (a) the ATAD 30% EBITDA cap (the "earnings stripping rule") — net interest expense is deductible only up to 30% of tax-adjusted EBITDA or €3M (whichever is higher), (b) the specific Belgian "thin cap" rule — interest on loans from directors, shareholders, or group companies exceeding certain thresholds may be recharacterised as dividends (and thus non-deductible). The Belgian tax authorities also scrutinise: back-to-back loan structures, excessive debt levels compared to equity (the debt-equity ratio), and the arm's length nature of the interest rate.

For the corporate tax framework, see our Corporate Tax Guide →. For the interaction between TP and holding company structures, see our Holding Companies Guide →. For cross-border restructuring and permanent establishment issues, see our Permanent Establishment Guide →. For the official guidance, see the FOD Financiën TP portal.