Every time you make an overseas payment from your Singapore company, that transaction may trigger a withholding tax obligation under Section 45 of the Income Tax Act 1947. The rate depends on the type of payment, and in some cases, on where the work was performed.
IRAS holds your company responsible for applying the correct rate and filing on time, not the overseas recipient. If you miss a deadline or withhold at the wrong rate, the penalties fall directly on your business.
This guide covers the withholding tax rates in Singapore for each type of payment. We’ll also explain exemptions and treaty relief that can reduce them, and how to file correctly with IRAS.
What is Withholding Tax (WHT) in Singapore?
Withholding taxes are taxes borne by you as the payer from certain payments to non-resident individuals or companies. IRAS requires you to deduct a percentage of that payment and remit it directly to the tax authority before the money leaves the country under Section 45 of the Income Tax Act 1947.
Your company is essentially acting as a collection agent for IRAS. You withhold the tax at the point of payment, send that portion to the government, and pay the non-resident what remains. The obligation sits entirely with you as the payer, not with the overseas recipient.
Additionally, not every outbound payment triggers WHT. It applies to specific categories of income, such as interest, royalties, service fees, and directors' fees. Straightforward purchases of goods fall outside the net entirely. So do dividends paid by a Singapore company.
If you're coming from a country where employers withhold income tax from employee salaries each month, Singapore's system works differently. There is no monthly payroll withholding here. Employees file their own income tax returns annually and pay IRAS directly. The only payroll-related withholding occurs when a foreign employee leaves Singapore, where the employer must hold the final salary and file Form IR21 for tax clearance
Who counts as a non-resident?
Your withholding tax obligation depends on the residency status of the party you are paying. IRAS classifies this differently for companies and individuals.
For companies, residency is defined where your organization is controlled and managed. If the entity you are paying has its board meetings and key decision-making outside Singapore, that entity is a non-resident under IRAS rules, even if it was registered here. So when you pay your overseas parent company or a foreign vendor's headquarters managed from another jurisdiction, you are paying a non-resident.
For individuals, the threshold is 183 days of physical presence in a calendar year. Anyone present for fewer than 183 days is a non-resident for that year. This is most relevant when you bring in foreign consultants, speakers, or trainers for short engagements. Their fees are subject to withholding from the first dollar.
Withholding only applies when the payment type is covered under Singapore's WHT rules and the income is regarded as sourced in Singapore. The following sections break these down.
Payments that trigger withholding tax
Withholding tax in Singapore applies to the following types of payments made to non-residents:
- Interest, commissions, or fees connected with any loan or indebtedness (including interest on overdue trade accounts and credit terms from a foreign supplier)
- Royalties or payments for the right to use intellectual property
- Payments for the use of scientific, technical, industrial, or commercial knowledge
- Technical assistance and management service fees
- Rent for the use of movable property
- Payments for the purchase of real property from a non-resident property trader
- Fees paid to non-resident directors
- Fees paid to non-resident professionals (consultants, speakers, coaches, trainers)
- Distributions from a Real Estate Investment Trust (REIT) to qualifying non-resident non-individual investors
Payments for goods, pure trade purchases, and dividends from a Singapore company are not subject to withholding tax. Singapore does not impose withholding tax on dividends.
Withholding Tax (WHT) Rates in Singapore
The rate depends on the type of payment you make. The table below shows the standard domestic rates that apply where no double taxation agreement (DTA) reduces them.
| Payment type | WHT Rate | Notes |
|---|---|---|
| Interest, commissions, and loan-related fees | 15% | Final tax when the non-resident has no permanent establishment in Singapore |
| Royalties and payments for intellectual property use | 10% | Final tax for non-residents without a Singapore PE |
| Payments for scientific, technical, industrial, or commercial knowledge | 10% | Often overlaps with software and SaaS licensing |
| Technical assistance and management fees (work done in Singapore) | 17% (prevailing corporate tax rate) | Not a final tax. The non-resident company can file a return, claim expenses, and have the liability reassessed |
| Rent for movable property | 15% | Equipment, vehicles, and other movable assets |
| Payments to non-resident directors | 24% | Applies to board fees approved at the AGM |
| Payments to non-resident professionals | 15% on gross, or 24% on net income by election | The professional can elect the net basis if their deductible expenses are high enough to make it worthwhile |
| Real property purchase from a non-resident property trader | 15% | On the sale proceeds |
| REIT distributions to non-resident non-individual investors | 10% | Concessionary rate extended to 31 December 2030 under Budget 2025 |
One area that often confuses foreign-owned companies is software licensing and SaaS subscriptions. Under IRAS's Rights-Based Approach, the WHT treatment depends on what rights your company is actually acquiring. If you are purchasing software for your own internal use, such as a cloud subscription, a productivity suite, or a data platform, that payment is classified as a payment for a "copyrighted article" and is not subject to withholding tax.
WHT at 10% only applies when your company acquires "copyright rights," meaning the right to commercially exploit, reproduce, modify, or sub-license the software's underlying IP. A standard SaaS subscription does not grant those rights. However, if your licence allows you to rebrand and resell the software to your own customers, that crosses into copyright territory and the 10% royalty rate applies.
If you’re not sure which rate applies to your cross-border payments, talk to our team in Singapore for a quick assessment. Book a free consultation here.
When Withholding Tax Applies to Cross-Border Service Fees
When your company pays a non-resident for technical or management services, the withholding rate depends on where that work was actually performed. Under Sections 12(6) and 12(7) of the Income Tax Act, WHT only applies to the portion of fees attributable to work done in Singapore. If the services were performed entirely outside Singapore, no withholding is required.
Let’s say your Singapore company pays a foreign consultancy for a market study. If the consultancy's team did all the research and analysis from their home country and never set foot in Singapore, that payment falls outside the withholding net. But if they send staff to Singapore to conduct interviews or deliver workshops on-site, the fees tied to that Singapore work are subject to withholding at 17%.
The key is documenting where the work was actually performed. IRAS will look at the substance of the arrangement, not the label on the invoice.
Double Taxation Agreements and Reduced Rates
Singapore has more than 90 active double taxation agreements. These treaties can significantly reduce the standard withholding tax rates, and in some cases, eliminate them altogether.
The reductions vary by treaty and by payment type. A DTA might lower the interest rate from 15% to 10%, or the royalty rate from 10% to 5%, depending on the other country. Some treaties set the rate on technical service fees at zero when the services are performed outside Singapore.
How to claim a reduced rate under a DTA
To apply a DTA rate instead of the domestic rate, the non-resident recipient must provide you with a valid Certificate of Residence (COR) issued by their home country's tax authority. You need this document before you pay, or at the very least by the filing deadline.
Without a valid COR, you must withhold at the full domestic rate. You can apply for a refund later once you obtain the certificate, but the process takes time and ties up cash.
One common mistake is applying the treaty rate without holding the COR first. IRAS will disallow the reduced rate during an audit and assess the full domestic rate plus penalties.
Our tax advisors in Singapore can assess your DTA eligibility and handle the COR documentation on your behalf.
Self-declaration for treaty benefits
When claiming exemption or a reduced rate, you must file a self-declaration form with IRAS to confirm the qualifying conditions have been met. This applies to both DTA relief and specific exemptions under the Income Tax Act.
Exemptions from Withholding Tax in Singapore
Certain payments are fully exempt from withholding tax under specific conditions. These generally include:
- Dividends from a Singapore company: Singapore does not impose withholding tax on dividends, even where a DTA assigns a dividend withholding rate. There is no need to withhold or file on dividend payments.
- Payments to Singapore branches of non-resident companies: If the non-resident you are paying operates a branch in Singapore, withholding tax is waived under Sections 12(6) and 12(7) of the Income Tax Act 1947. The branch still reports this income through its own annual tax return, but the payer does not need to withhold. This covers interest, commissions, royalties, and management fees paid to that branch.
- Section 12(6) payments by banks and specified financial institutions: All Section 12(6) payments made by banks, finance companies, and certain MAS-approved entities to non-residents for their trade or business are exempt from withholding tax. This includes interest and other loan-related payments. Exemption applies to contracts that take effect on or before 31 December 2031. A separate waiver also covers Section 12(6) payments these entities make to permanent establishments in Singapore, effective through the same date.
- Container lease payments: Payments to non-resident lessors under operating lease agreements are exempt from withholding tax. Budget 2025 extended this exemption to agreements entered into on or before 31 December 2031.
- True cost reimbursements: Genuine reimbursements at zero mark-up, when properly documented, do not attract withholding tax. But anything with a mark-up is treated as a fee and becomes subject to withholding. If IRAS cannot distinguish a reimbursement from a service fee, it will treat the payment as taxable.
- Payments for international submarine cable capacity: Treated as service fees and fall outside the withholding net when the services are performed outside Singapore. The exception is payments made under Indefeasible Rights of Use (IRU) agreements, where the payer holds significant control over the physical cables. These are technically subject to WHT, but IRAS has granted a tax exemption on IRU payments through 31 December 2028.
Singapore Withholding Tax Filing Deadlines and Penalties
You must file and pay the withheld tax to IRAS by the 15th of the second month following the date of payment. The payment date is determined by whichever comes first among the following:
- The date specified in the contract
- The invoice date
- The actual date you made the payment
- The date the non-resident was credited
For example, if you paid a non-resident consultant on 10 March, the filing and payment deadline is 15 May.
How to file withholding tax
Filing is done electronically through IRAS's myTax Portal using the S45 Withholding Tax form. Before your first filing, you need:
- A Corppass Administrator or Sub-Admin to create your account
- They must assign the S45 Withholding Tax filing service,
- Set your role as either a Preparer (can draft the form) or Approver (can submit it).
Even when a DTA or exemption reduces the withholding tax to zero, you must still file the return with IRAS. Filing and paying are two separate obligations, and the filing requirement stands regardless of whether any tax is actually due.
Penalties for late filing
If you miss the deadline, a 5% late payment penalty applies to the tax owed. If the tax remains unpaid 30 days after IRAS issues the penalty notice, an additional 1% per month is charged, up to a maximum of 15% of the unpaid tax.
IRAS can also recover the full tax amount from your company if you failed to withhold when you should have. The liability falls on the payer, regardless of what the contract says between the parties.
Manage Your Withholding Tax Compliance with Emerhub
If your company regularly pays overseas vendors or service providers, each of those payments carries a WHT obligation. Most new entrants and small companies need expert support to apply the correct rates and stay consistent across every payment month after month.
Emerhub's tax and accounting team in Singapore manages this cycle for foreign-owned companies. We handle the rate determination, the DTA analysis, the S45 filings through myTax Portal, and the COR documentation. Where an exemption or reduced rate applies, we can file the self-declaration forms on your behalf.
If you need support across the full compliance cycle, our team also manages corporate tax filings, GST, payroll, and annual returns. Talk to our Singapore team about your operations in Singapore, and we will explain where we can help.
Book a free consultation with our local advisors via the form below.
Frequently asked questions
Does withholding tax apply if the non-resident has never been to Singapore?
It depends on the type of payment, not on physical presence. Interest, royalties, and IP licensing payments are subject to withholding tax regardless of whether the recipient has visited Singapore. For technical and management service fees, withholding only applies to the portion of work done in Singapore. If the services were performed entirely overseas, no withholding is required on those fees.
Do I still need to file if the withholding tax rate is zero under a DTA?
It depends on why the rate is zero. If you are applying for a DTA that reduces the WHT rate to zero on income that would otherwise be taxable, you must still file the S45 return with IRAS. In that scenario, filing and payment are considered separate obligations. This changes if the services were performed entirely outside Singapore. In that case, the income is not deemed sourced here under Section 12(7), and no S45 filing is required at all.
Is withholding tax a cost to my company or to the non-resident?
The tax is levied on the non-resident's income, but the obligation to withhold and remit sits with your Singapore company. If you fail to withhold, IRAS will assess the full amount against your company, plus penalties. The gross payment (before withholding) is the amount your company can claim as a deductible business expense, not the withheld tax itself.
Are software subscriptions and SaaS payments subject to withholding tax in Singapore?
In most cases, software subscriptions and SaaS payments are not subject to WHT. IRAS uses a Rights-Based Approach to classify software payments. If your company is purchasing software or subscribing to a SaaS platform for its own internal business use, that payment is treated as a payment for a "copyrighted article" and is not subject to WHT. The 10% royalty rate only applies when your company acquires the right to commercially exploit the software, such as reproducing, modifying, or sub-licensing it. Standard tools like cloud platforms, productivity suites, and business SaaS subscriptions do not trigger withholding tax.
How do I know if a DTA applies to my payment?
Singapore has more than 90 active DTAs. You can check the IRAS website for the full list of treaty partners and the specific rates each treaty provides by payment type. Alternatively, our advisors can also review your eligibility with a free consultation. To claim a reduced rate, you need a valid Certificate of Residence from the non-resident's home tax authority. Without it, the full domestic rate applies, and you can apply for a refund later.