Withholding tax (WHT) is one of the most commonly overlooked compliance obligations for Singapore companies that make payments to non-resident individuals or entities. When a Singapore company pays certain types of income — such as interest, royalties, service fees, or rental for movable property — to a non-resident recipient, the company is required to withhold a portion of the payment and remit it directly to IRAS on behalf of the recipient.

Failure to withhold and remit the correct amount exposes the paying company — not the recipient — to penalties and interest. This guide covers which payments trigger withholding tax obligations, the applicable rates, how to compute and remit WHT, and key exemptions that reduce the WHT burden.

What Is Withholding Tax?

Withholding tax is a mechanism for Singapore to collect income tax on Singapore-sourced income earned by non-residents. Rather than requiring the non-resident to file a Singapore tax return, IRAS collects the tax at source from the Singapore payer. The payer is required to deduct the tax from the gross payment and remit it to IRAS, paying the net amount to the recipient.

The legal basis for withholding tax in Singapore is primarily found in Section 45 of the Income Tax Act 1947, with specific provisions for different income types in Sections 45A through 45P. The full legislative text is available at Singapore Statutes Online.

Which Payments Attract Withholding Tax?

The following types of payments to non-residents are subject to Singapore withholding tax:

Interest (Section 12(6))

Interest paid to a non-resident on Singapore-sourced debt (loans from overseas lenders, intercompany debt from foreign parent or subsidiary companies, etc.) is subject to WHT at 15% on the gross amount. Exceptions apply under Singapore’s Double Taxation Agreements (DTAs) and for interest paid on approved bonds.

Royalties (Section 12(6))

Payments for the use of, or the right to use, intellectual property — including patents, trademarks, copyrights, know-how, software licences, and design rights — are royalties subject to WHT at 10% on the gross amount. If the DTA with the recipient’s jurisdiction provides a lower rate, that lower rate applies.

Management Fees and Technical Service Fees (Section 45)

Fees paid to non-resident companies for management services, technical assistance, or consulting services rendered in Singapore are subject to WHT at 17% (the prevailing corporate tax rate). This is one of the most common WHT triggers for Singapore companies with foreign parent companies or foreign service providers.

Note: Management fees for services rendered entirely outside Singapore are generally not subject to Singapore WHT. The distinction between Singapore-sourced services and foreign-sourced services is critical and is fact-dependent.

Rent on Movable Property

Payments for the use of movable property situated in Singapore (e.g., equipment, machinery, vehicles) are subject to WHT at 15% on the gross amount.

Director’s Remuneration

Director’s fees and other remuneration paid to non-resident directors (i.e., directors who are not tax resident in Singapore) are subject to WHT at 22%.

Payments to Non-Resident Professionals

Payments to non-resident individuals who perform professional services in Singapore (e.g., foreign lawyers, accountants, consultants working on a specific engagement in Singapore) are subject to WHT at 15%. This does not apply to services rendered entirely outside Singapore by a person who does not visit Singapore in connection with the engagement.

Double Taxation Agreements (DTAs)

Singapore has an extensive network of over 100 Double Taxation Agreements with countries around the world. Under these treaties, the WHT rate on certain types of income is reduced or eliminated. For example, Singapore’s DTA with many ASEAN countries, the US, UK, Germany, Japan, and others provides for reduced WHT rates on dividends, interest, and royalties.

To benefit from a DTA rate, the non-resident recipient must:

  • Be a resident of the relevant treaty country for tax purposes
  • Provide a Certificate of Residence (COR) from the tax authority of their home country
  • Be the beneficial owner of the income (not merely a conduit)

The Singapore company must retain the COR and any other supporting documents for at least 5 years. For full details, consult the IRAS withholding tax guide.

How to Compute Withholding Tax

Withholding tax is generally computed on the gross amount of the payment (before any deductions). The formula is:

WHT = Gross Payment × Applicable WHT Rate

The non-resident receives: Gross Payment − WHT

For example: if a Singapore company pays S$100,000 in royalties to a UK company (no DTA reduction), the WHT is S$10,000 (10% × S$100,000). The UK company receives S$90,000 and IRAS receives S$10,000.

When Must Withholding Tax Be Remitted?

Under the Income Tax Act, withholding tax must be paid to IRAS by the 15th of the month following the date the payment was made (or deemed to be made — e.g., when it was credited to the non-resident’s account). Late remittance attracts a penalty of 5% per annum on the amount outstanding, plus additional penalties for extended delays.

The Singapore company must file Form IR37 (or the relevant variant) with IRAS when making the withholding tax payment. This is done via IRAS’s myTax Portal. Records of all WHT payments must be retained for 5 years as part of the company’s tax records — consistent with your overall annual compliance calendar.

Common Pitfalls and Compliance Issues

  • Failing to withhold on intercompany management fees. Singapore subsidiaries of multinational groups routinely pay management fees to their foreign parent. These are frequently subject to WHT at 17%, which is often overlooked in routine payments.
  • Applying incorrect DTA rates without obtaining a COR. The DTA rate only applies if the correct documentation (COR) is obtained before payment. Applying DTA rates without documentation exposes the company to penalties.
  • Confusion between Section 45 (withholding) and Section 13(9) (Approved Royalties). Some royalty payments qualify for exemption under the Approved Royalties exemption regime, but this requires prior IRAS approval and specific conditions.
  • Not distinguishing between Singapore-sourced and foreign-sourced services. WHT applies only to Singapore-sourced income. Services entirely performed outside Singapore — where no services are rendered in Singapore — do not trigger WHT. However, the burden of proof falls on the company to document why WHT was not applied.

If you need legal and tax advice on withholding tax obligations — particularly for complex intercompany arrangements or DTA treaty claims — we can point you in the right direction. For the latest Singapore financial and tax news, keeping up with IRAS guidance is essential. Sound financial planning and investment decisions also depend on properly accounting for tax costs including withholding tax.

How Raffles Corporate Services Can Help

Raffles Corporate Services provides accounting, bookkeeping, and tax compliance services for Singapore companies, including guidance on withholding tax obligations. We help clients identify which of their payments attract WHT, prepare and file Form IR37, and ensure all required documentation (CORs, contracts, DTA claims) is properly maintained.

To speak with the team at Raffles Corporate Services, you can email [email protected] or call, SMS, or WhatsApp +65 8501 7133. We are happy to assist with any queries.

— The Editorial Team, Raffles Corporate Services