Zero-Rated Supply GST Singapore: What Qualifies and How It Differs From Exempt Supplies

Last updated: September 2026 | Category: TAX

A zero-rated supply is a sale of goods or services that IRAS taxes at 0% GST rather than the standard rate, most commonly exported goods and qualifying international services, while still counting as a taxable supply that lets the business claim back GST it paid on its own business inputs.

Not financial advice. All figures for educational reference only. Data as at September 2026.

Key Takeaways

Zero-rated supplies are taxed at 0%, but businesses making them can still claim Input Tax Credit on related business expenses — a key difference from GST-exempt supplies.
The two main categories are exported goods and qualifying “international services” defined under Section 21(3) of the GST Act, such as services supplied to an overseas client.
If a business’s input tax exceeds its output tax, which is common for exporters, IRAS will process a GST refund within the standard timeframe.
To zero-rate an export, the supplier must be certain at the time of supply that the goods have been or will be exported, and must hold the required supporting documentation.
Zero-rated and GST-exempt supplies are often confused but are treated very differently: zero-rated is 0% tax with input credit intact, while exempt supplies fall outside the GST system entirely and generally block input tax claims.

What Is a Zero-Rated Supply?

Singapore’s Goods and Services Tax (GST) applies at the prevailing standard rate to most local sales of goods and services. Zero-rating is a specific carve-out that keeps Singapore-based exporters and international service providers competitive globally by ensuring GST does not get layered onto goods and services ultimately consumed outside Singapore.

The mechanism works by classifying the sale as taxable, but at a 0% rate. This distinction matters enormously in practice: because the supply is still legally “taxable,” the business making it remains fully entitled to claim back the GST it paid on its own purchases and overheads (input tax), exactly as if it had charged the standard rate. This is what separates zero-rating from a GST exemption, which removes the transaction from the GST system altogether and typically blocks input tax recovery.

How Does a Zero-Rated Supply Work in Singapore?

IRAS recognises two broad categories of zero-rated supply:

Exported goods: all goods physically exported out of Singapore are zero-rated, including goods sold to an overseas customer and goods delivered directly from a place outside Singapore to another place outside Singapore.
International services: services supplied to an overseas person or business that fall within the categories defined under Section 21(3) of the GST Act — for example, services directly connected with goods or land located outside Singapore, or services supplied to a customer who belongs outside Singapore and benefits from the service overseas.

A business must be able to demonstrate, at the point of supply, that it was certain the goods had been or would be exported, and must retain the export documentation IRAS requires (such as shipping and customs records) to support the zero-rating in the event of an audit. Businesses whose sales are predominantly zero-rated, such as export-focused manufacturers, frequently end up in a net GST refund position each accounting period, since their input tax on local purchases and overheads regularly exceeds the (zero) output tax they charge on sales.

a Zero-Rated Supply Example

A Singapore-based electronics distributor sells S$500,000 worth of components to a customer in Vietnam, shipped directly from its Singapore warehouse. Because the goods are exported, the sale is zero-rated — the distributor charges 0% GST to the Vietnamese customer, but still reports the S$500,000 as a taxable supply on its GST return.

In the same period, the distributor pays S$28,000 in GST on local rent, utilities, and supplier purchases. Because it is making taxable (zero-rated) supplies, it can claim back the full S$28,000 as input tax, resulting in a GST refund from IRAS for that period, since it collected no output tax to offset against.

Advantages of a Zero-Rated Supply

Keeps Singapore exporters price-competitive in overseas markets by ensuring no local GST is embedded in the export price.
Full input tax recovery preserved, unlike exempt supplies, so exporters do not absorb GST as a hidden cost on their business inputs.
Supports Singapore’s role as a regional trade and services hub, encouraging export-oriented and international service businesses to base operations here.
Predictable, rules-based categories under the GST Act, giving businesses clarity on which transactions qualify.

Risks and Limitations

Zero-rating an export incorrectly, or without adequate supporting documentation, can lead IRAS to reclassify the supply as standard-rated, with GST, penalties and interest then due retroactively.
The distinction between zero-rated and exempt supplies is frequently misunderstood, and misclassifying a supply can either understate GST owed or wrongly forfeit legitimate input tax claims.
Businesses must maintain robust export and service-delivery documentation, which adds an administrative compliance burden compared to standard-rated domestic sales.
Qualifying a service as “international” under Section 21(3) involves detailed conditions around where the customer belongs and where the service is consumed, which is not always straightforward to apply.
A business heavily reliant on zero-rated sales may find itself in a persistent GST refund position, which can attract more frequent IRAS review of its filings.

Zero-Rated Supply vs GST-Exempt Supply

Feature	Zero-Rated Supply	GST-Exempt Supply
GST rate charged	0%	No GST charged — outside the GST system
Counted as a taxable supply?	Yes	No
Input tax (GST paid on business costs) claimable?	Yes, in full	Generally no
Typical examples	Exported goods, qualifying international services	Financial services, sale/lease of residential property
Effect on GST registration threshold	Counts toward the S$1 million registration threshold	Generally excluded from the threshold calculation

Source: IRAS GST e-Tax Guides on exports and exempt supplies, as at September 2026

The Bottom Line

For Singapore-based exporters and service providers, correctly identifying and documenting zero-rated supplies is not just a compliance formality — it directly determines whether GST paid on business costs can be recovered in full. Getting the zero-rated versus exempt classification wrong is one of the more common and costly GST filing errors IRAS flags on review.

Frequently Asked Questions

What is a zero-rated supply under Singapore GST?

A zero-rated supply is a sale of goods or services taxed at 0% GST, most commonly exported goods and qualifying international services, that still counts as a taxable supply and lets the business claim back GST paid on its own business inputs.

What is the difference between zero-rated and GST-exempt supplies?

Zero-rated supplies are taxed at 0% but remain taxable supplies with full input tax recovery, while exempt supplies fall outside the GST system entirely and generally do not allow input tax to be claimed.

What qualifies as a zero-rated export in Singapore?

Goods physically exported out of Singapore qualify for zero-rating, provided the supplier is certain at the point of supply that the goods have been or will be exported, and holds the required supporting export documentation.

Can a business claim GST refunds on zero-rated supplies?

Yes. If a business’s input tax on local purchases and overheads exceeds the output tax it charges (which is 0% on zero-rated sales), IRAS will process a GST refund for the difference within the standard timeframe.

What are examples of zero-rated international services?

International services under Section 21(3) of the GST Act include services directly connected with goods or land located outside Singapore, and services supplied to an overseas customer who belongs outside Singapore and receives the benefit of the service there.

Zero-Rated Supply GST Singapore