Samoa Cross-Border Tax Guide: WHT 15%, DTTs, Transfer Pricing 2026
Samoa's cross-border tax framework features withholding taxes on outbound payments (dividends 15%, interest 15%, royalties 15%), Double Taxation Treaties with Australia and New Zealand, and transfer pricing rules aligned with OECD guidelines. Here is how cross-border taxation works in 2026.
Cross-border taxation in Samoa is governed by the Income Tax Act 2012 and Samoa's Double Taxation Treaties. The system is designed to facilitate international trade and investment while protecting Samoa's tax base. Withholding tax rates apply to certain payments from Samoan residents to non-residents. Transfer pricing rules ensure that transactions between related parties are conducted at arm's length. The MOR administers cross-border tax matters. Investment income tax →
Real-world example: An Australian company receives WST 100,000 in dividends from its Samoan subsidiary. Domestic WHT at 15% = WST 15,000. Under the Samoa-Australia DTT, the rate may be reduced. A New Zealand company licensing software to a Samoan company receives WST 50,000 in royalties: domestic WHT 15% = WST 7,500, but under the Samoa-NZ DTT, the rate may be reduced. Corporate tax overview →
Withholding Tax Rates
- Dividends to non-residents: 15% (may be reduced under DTT)
- Interest to non-residents: 15% (may be reduced under DTT)
- Royalties to non-residents: 15% (may be reduced under DTT)
WHT applies to payments made by Samoan residents to non-residents. The payer is responsible for withholding and remitting the tax to the MOR. Treaty relief requires the recipient to provide a Certificate of Tax Residency and beneficial ownership declaration.
Double Taxation Treaties
Samoa has DTTs with Australia and New Zealand. Treaties generally provide for:
- Dividends: Reduced rates compared to the domestic 15%
- Interest: Reduced rates compared to the domestic 15%
- Royalties: Reduced rates compared to the domestic 15%
- Business profits: Only taxable in the source country if there is a permanent establishment
- Employment income: Taxable in the work country (subject to the 183-day exemption for short assignments)
Samoa has a limited treaty network but is exploring expansion. For non-treaty countries, the domestic 15% WHT rate applies on all three categories of outbound payments.
Transfer Pricing
Samoa's transfer pricing rules follow the OECD Transfer Pricing Guidelines. Key requirements include:
- Arm's length principle: Transactions between related parties must be conducted as if between independent entities
- Documentation: Taxpayers should maintain transfer pricing documentation
- Methods: Acceptable methods include comparable uncontrolled price (CUP), cost plus, resale price, transactional net margin method (TNMM), and profit split
Samoa has no exchange controls, allowing free movement of capital in and out of the country.
Permanent Establishment Risk
Non-resident companies may create a taxable presence (permanent establishment) in Samoa through: a fixed place of business (office, branch, workshop, construction site exceeding 6 months), a dependent agent with authority to conclude contracts, or provision of services through employees for more than 183 days in any 12-month period. A PE is subject to CIT on profits attributable to the PE.
Can I repatriate profits from Samoa tax-free?
Dividends paid to non-resident shareholders attract 15% WHT (subject to treaty reduction). Interest and royalties paid to non-residents also attract 15% WHT.
What is the procedure for claiming DTT benefits?
The non-resident must provide the Samoan payer with a completed Treaty Relief Application form, a Certificate of Tax Residency from the home country tax authority, and a declaration of beneficial ownership. The payer then applies the treaty rate at source.