When a Singapore company makes certain types of payments to non-resident individuals or foreign entities, it is generally required to withhold a portion of the payment and remit it to the Inland Revenue Authority of Singapore (IRAS) on the payee’s behalf. This mechanism — known as withholding tax — is one of the most misunderstood areas of Singapore tax compliance. Many businesses, especially those engaging overseas consultants, technology vendors, or intellectual property licensors, discover their withholding tax obligations only after the fact, often at the cost of significant penalties and interest.

This guide explains which payments trigger withholding tax in Singapore, the applicable rates under the Income Tax Act 1947, how to file and pay on time, and how Double Taxation Agreements (DTAs) can reduce or eliminate the obligation.

What Is Withholding Tax and When Does It Apply?

Withholding tax (WHT) is a deduction at source — the payer withholds a percentage of the payment and remits it directly to IRAS, rather than paying the full amount to the payee. The legal basis is Section 45 of the Income Tax Act, which imposes the withholding obligation on the person making the payment.

Withholding tax applies specifically when payments are made to non-residents of Singapore — whether individuals or entities — for income that is sourced in Singapore. A non-resident is generally a foreign company without a permanent establishment in Singapore, or an individual physically present in Singapore for fewer than 183 days in a calendar year.

Does it apply to Singapore residents?

Withholding tax does not generally apply to payments made to Singapore tax residents — individuals ordinarily resident in Singapore, or companies incorporated and managed in Singapore. However, there is an exception: for interest and royalty payments, WHT applies even if the recipient is Singapore-resident, unless specific exemptions apply. Most companies focus on the non-resident WHT obligation, which is where the risk of non-compliance tends to concentrate.

Common Payments Subject to Withholding Tax in Singapore

The following categories of payments to non-residents typically trigger a WHT obligation under the Income Tax Act:

Interest (Section 12(6)(a))

Interest paid to a non-resident lender on a loan used in Singapore is subject to WHT at 15% (or the DTA rate, if lower). This is particularly relevant for companies with shareholder loans from foreign parent companies or cross-border intercompany financing.

Royalties and licence fees (Section 12(6)(b))

Payments for the use of or the right to use intellectual property — including patents, trademarks, copyrights, software licences, and know-how — are subject to WHT at 10% of the gross payment (or the DTA rate). Software subscriptions and SaaS fees from overseas vendors sometimes fall under this category, depending on whether the arrangement constitutes a licence to use IP or a simple service provision.

Technical service fees (Section 12(7))

Fees for management, technical, and consultancy services provided by non-residents are subject to WHT if the services are performed in Singapore — at 17% of the gross payment (the prevailing corporate tax rate), though in practice a concessionary effective rate applies through the process of “grossing up” net income. Non-residents may elect to be assessed on net income instead, which requires filing an income tax return in Singapore.

Rental of moveable property

Rental payments to non-residents for moveable property used in Singapore (such as equipment, machinery, or vehicles) are subject to WHT at 15% of the gross rental.

Director’s fees (non-resident directors)

Director’s fees paid to non-resident directors of Singapore companies are subject to WHT at 22%. This applies even if the director performs their duties entirely outside Singapore.

How to File and Pay Withholding Tax

WHT is filed and paid via myTax Portal using a Corppass account. The deadline is strict: you must file and pay by the 15th of the second month following the month in which you made the payment to the non-resident.

For example, if you pay an overseas consultant S$10,000 for services rendered in Singapore in June 2026, you must withhold the applicable percentage and remit it to IRAS by 15 August 2026.

Step-by-step filing process

  1. Log in to myTax Portal with your company’s Corppass.
  2. Go to Withholding Tax → File Withholding Tax.
  3. Enter the payment details: payee’s name, country of residence, payment date, nature of payment, gross amount, WHT rate, and WHT amount withheld.
  4. Submit and pay the WHT amount due via GIRO, PayNow Corporate, or eNETS.
  5. Provide the payee with a WHT certificate (Form IR37/A/B/C/D as appropriate) showing the amount withheld — they can use this to claim a credit in their home country’s tax return.

Late filing and payment attract a 5% late payment penalty on the WHT amount outstanding, plus 1% per month of delay up to a maximum of 15%.

Double Taxation Agreements: Reducing Your WHT Rate

Singapore has an extensive network of over 90 comprehensive Double Taxation Agreements (DTAs) with countries around the world. These treaties often reduce or eliminate the domestic WHT rates described above.

For example, under Singapore’s DTA with the United Kingdom, the WHT rate on royalties may be reduced to 0% or a lower treaty rate. Under the DTA with India, the rate on interest may be reduced to 10% instead of the domestic 15%.

How to apply the DTA rate

To apply a reduced DTA rate, the non-resident payee must provide a valid Certificate of Residence issued by their home country’s tax authority, confirming that they are a tax resident of that DTA country. The Singapore payer then withholds at the reduced DTA rate and submits the reduced rate application together with the Certificate of Residence when filing on myTax Portal. IRAS will approve the reduced rate if the documentation is complete.

Without a Certificate of Residence, the domestic WHT rate applies by default — even if the payee is from a DTA country.

Common Compliance Pitfalls

Withholding tax non-compliance is more common than many businesses realise. Watch out for these frequent errors:

  • Paying overseas SaaS or software vendors without considering WHT. Many businesses assume that cloud software subscriptions are not subject to WHT. In some cases — particularly where the arrangement grants rights to use IP — IRAS may treat the payment as a royalty triggering WHT.
  • Netting instead of grossing up. If you agreed to pay a net amount to the vendor and then try to deduct WHT from that net, you may be calculating the liability incorrectly. Consult a tax advisor on gross-up calculations.
  • Missing the filing deadline. The 15th of the second month rule catches many companies out, especially for one-off payments. Set a calendar reminder as soon as a payment is made.
  • Failing to obtain a Certificate of Residence. Many companies apply DTA rates without collecting the required certificate, creating a potential IRAS audit exposure.
  • Not recognising that WHT applies to services rendered in Singapore. Even a short consulting engagement by a foreign expert in Singapore can trigger WHT on their fees.

Withholding Tax and Your GST Obligations

Withholding tax and GST are separate obligations. Overseas vendors who charge Singapore GST under the Overseas Vendor Registration (OVR) regime are doing so separately from WHT. Your company may have both a WHT obligation (on the service fee component) and a GST obligation (if you are GST-registered and can claim the GST back). Understanding how these two taxes interact is part of good cross-border tax management. You can read more about GST registration in Singapore separately.

Need Help with Withholding Tax Compliance?

Withholding tax compliance requires an understanding of Singapore’s income tax legislation, your company’s DTA entitlements, and IRAS’s administrative processes. For most growing companies, embedding WHT checks into your accounts payable process — so that every payment to a non-resident is automatically reviewed — is the most effective way to stay compliant without manual effort.

Raffles Corporate Services provides corporate tax compliance services for Singapore companies, including withholding tax advisory, filing support, and DTA rate applications. Contact our tax team to review your company’s WHT obligations and ensure you are fully up to date.

— The Editorial Team, Raffles Corporate Services