Singapore customs duty and GST on imports explained
Singapore customs duty is often misunderstood. Singapore is a highly open trading economy, but imported goods can still be subject to tax, permits and border controls. As of September 2026, Singapore Customs guidance states that duty applies mainly to four broad dutiable categories: intoxicating liquors, tobacco products, motor vehicles and petroleum products. Most other imported goods are non-dutiable, but they may still attract Goods and Services Tax, commonly known as GST, at the prevailing 9% rate unless a relief, suspension scheme or exemption applies.
For importers, the practical questions are straightforward: is the product dutiable, how is GST calculated, what permit is required, and does the shipment include controlled or prohibited goods?
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What Singapore customs duty means in practice
In Singapore import terminology, customs duty is not the same as GST. Customs duty and excise duty are targeted taxes imposed on dutiable goods. GST is a broad-based consumption tax imposed on most goods imported into Singapore. Singapore Customs also distinguishes between customs duty, which is levied on goods imported into Singapore, and excise duty, which may apply to goods manufactured in or imported into Singapore.
This distinction matters because many importers look for a single “import duty rate” and expect it to apply across all products. In Singapore, that assumption can produce inaccurate landed-cost estimates. A shipment of general merchandise, apparel, electronics, industrial parts or household goods may have no customs duty, but GST can still be payable at import. By contrast, a shipment of alcohol, tobacco, motor vehicles or petroleum products can involve both duty and GST, with GST calculated on a value that includes applicable duty.
Duty status also does not decide whether a product is controlled or prohibited. A non-dutiable product can still require approval from a competent authority. Food, medicines, telecommunications equipment, chemicals, strategic goods and other regulated items may need permits, licences or product-specific approvals before clearance.
The four main categories of dutiable goods
Singapore Customs identifies four broad categories of dutiable imported goods. These should be screened before an importer prepares a cost estimate, commercial invoice review or permit declaration.
| Category | How duty is commonly assessed | Key importer takeaway |
|---|---|---|
| Intoxicating liquors | Often by volume and alcoholic strength, or by dutiable content for certain products | Classification, alcohol strength and origin documentation can materially affect duty treatment. |
| Tobacco products | Often by weight, sticks or product-specific measurement | Tobacco compliance is strict, and duty/GST relief is limited compared with ordinary goods. |
| Motor vehicles | Often on customs value, with excise duty applying to vehicles such as motor cars | Vehicle imports require careful valuation and should not be treated like ordinary consumer goods. |
| Petroleum products and biodiesel blends | Often by volume, weight or dutiable fuel content | Product composition and fuel type can determine the calculation method. |
For alcohol, Singapore Customs gives calculation examples based on litres, duty rate and alcoholic strength. For cigarettes, duty can depend on the number of sticks and the weight of each stick, rounded according to Customs rules. For motor vehicles, Customs examples show duty calculated as a percentage of customs value. For petroleum products, examples use volume-based rates such as duty per decalitre, depending on the product.
These examples explain the calculation method, but they are not a substitute for the applicable duty schedule. Before goods are shipped, importers should check the product code, Harmonised System classification, Customs and Excise Duties reference, and any preferential tariff treatment that may be relevant.
How GST is calculated on imports
GST is usually the main tax cost for importers of non-dutiable goods because it applies broadly. Singapore Customs and IRAS guidance describe import GST as being levied at the prevailing rate on the Cost, Insurance and Freight value, commonly called CIF. For dutiable goods, GST is calculated on CIF plus applicable duty and other chargeable costs that form part of the import value.
The basic landed-tax logic can be summarised as follows:
- Non-dutiable goods: GST is generally calculated on the CIF value, unless an import relief, suspension arrangement or exemption applies.
- Dutiable goods: duty is calculated first according to the relevant duty method, and GST is then calculated on the taxable import value including duty.
- Controlled goods: GST and duty are separate from regulatory approvals; a shipment may require both tax payment and approval from another authority.
For example, if a non-dutiable shipment has a CIF value of S$10,000 and no import GST relief applies, the GST calculation at 9% would be S$900. If a dutiable shipment has a CIF value of S$10,000 and S$2,000 of duty, GST would generally be calculated on S$12,000, producing S$1,080 of GST at 9%. This simplified example is for cost planning only. Actual declarations should follow the approved permit, customs value, exchange rate and product classification used for the import.
The commercial point is simple: “duty-free” does not mean “tax-free.” In Singapore, many imported goods have zero customs duty but are still subject to GST when they enter customs territory for local use or consumption.
Low-value goods, courier shipments and the S$400 threshold
Small parcel importers need to consider a separate set of rules for low-value goods. IRAS and Singapore Customs guidance define low-value goods as goods with a sales value of S$400 or less that are imported into Singapore by air or post. The sales value refers to the price of the goods only and does not include transport, insurance, GST or customs duty.
Since 1 January 2023, GST treatment for imported low-value goods has depended partly on whether the overseas seller or marketplace is GST-registered under Singapore’s overseas vendor rules. If a qualifying item is bought from a GST-registered overseas supplier and imported by air or post, GST may be charged at the point of purchase. In that case, the supplier should provide the GST payment information needed by the delivery channel so that GST is not charged again at import.
If the overseas seller is not GST-registered, GST may be collected at the point of import when the shipment exceeds the relevant import relief threshold. Singapore Customs and IRAS guidance also note that the S$400 import relief for goods imported by air or post is based on CIF value, and it excludes intoxicating liquors and tobacco. This creates a common mismatch: a product can have a sales value of S$400 or less but a CIF value above S$400 once shipping and insurance are included.
Importers using courier, postal, forwarding or redelivery services should therefore check three values, not one: the item sales value, the CIF value and whether GST has already been charged by a GST-registered supplier. Keeping invoices, shipping invoices and marketplace GST details helps reduce the risk of double payment or clearance delay.
Import permits and declaration responsibilities
Commercial imports generally require a customs permit before goods are imported into Singapore. Singapore Customs guidance explains that importers need a Unique Entity Number, an activated Customs Account and a permit application through TradeNet, either directly or through a declaring agent. Once approved, the permit sets out clearance and payment conditions for duty and GST where applicable. See also: Compliance.
The importer is the party bringing goods into Singapore for its own account or for another party’s account. Where an overseas seller sells to a Singapore company and that local company is named as consignee on the commercial invoice, the local company is generally treated as the importer. This matters because the importer’s name on the permit can affect GST accounting and input tax recovery for GST-registered businesses.
Singapore Customs permit types distinguish between different tax and movement situations. For instance, there are permits used to account for GST on non-dutiable goods, permits for duty and GST on dutiable goods, and permits connected with warehouse, free trade zone or temporary import movements. Businesses should align the permit type with the actual cargo movement, tax status and intended use of the goods.
Common declaration risks include using the wrong HS code, under-declaring value, omitting insurance or freight from CIF, using the wrong importer identity, or assuming that a courier shipment needs no compliance review. Customs valuation and GST treatment should be checked before shipment, not after the goods arrive.
Reliefs, suspension schemes and preferential tariff treatment
Singapore’s import system includes reliefs and schemes that can change when tax is paid, although they do not remove compliance obligations. Goods imported into free trade zones, licensed warehouses or zero-GST warehouses may be under customs control, and duty or GST may be suspended until the goods are removed for local use or consumption. Singapore Customs describes the Licensed Warehouse Scheme as applying to dutiable goods such as liquor, tobacco, motor vehicles and petroleum products.
Temporary import arrangements may also be available for approved purposes such as repair, modification, treatment, exhibitions, demonstrations or testing, subject to the applicable conditions. These arrangements are not automatic, and dutiable goods may be excluded or treated differently depending on the scheme and approval.
Preferential tariff treatment under free trade agreements can matter where a dutiable product still has a customs duty component. Enterprise Singapore explains that FTAs deal with preferential tariffs, but preferential tariffs are separate from internal taxes such as GST. In other words, an FTA may reduce or eliminate customs duty for qualifying originating goods, but it does not normally eliminate import GST.
A 2026 example shows why origin documentation can still be commercially relevant in Singapore. Singapore Customs announced that, from 1 February 2026, customs duty for specified MERCOSUR-originating alcoholic beverage lines imported into Singapore would be zero-rated under the Mercosur-Singapore Free Trade Agreement, while excise duty would still apply at the respective rates. The lesson for importers is precise: preferential origin can reduce a customs duty element, but it does not automatically remove excise duty, GST or regulatory controls.
A practical checklist before importing into Singapore
For most traders, Singapore customs duty should be reviewed as one part of a wider import compliance check. Before shipping, importers should document the following points:
- Confirm the HS code and product description. Classification drives duty status, permit requirements and controlled goods checks.
- Check whether the goods fall into a dutiable category. Alcohol, tobacco, motor vehicles and petroleum products require extra attention.
- Calculate CIF value. Include the relevant cost, insurance and freight amounts, and use the applicable customs exchange rate where needed.
- Estimate GST separately from duty. Do not assume that zero duty means no GST.
- Review controlled or prohibited goods requirements. A non-dutiable product may still need approval from another Singapore authority.
- Choose the correct permit and importer name. This affects clearance, tax payment and GST accounting.
- Check whether relief, warehouse suspension or temporary import treatment is available. Apply before the goods move if prior approval is required.
- Keep evidence. Invoices, freight documents, insurance details, origin declarations, permits and GST payment records should be retained for audit and dispute resolution.
This structured review is especially useful for ecommerce sellers, regional distributors and procurement teams that ship mixed consignments. A shipment containing mostly non-dutiable goods can still be delayed if one item is controlled, dutiable or incorrectly declared.
Frequently asked questions
Does Singapore charge customs duty on all imports?
No. Singapore customs duty applies mainly to dutiable goods such as intoxicating liquors, tobacco products, motor vehicles and petroleum products. Most other goods are non-dutiable, although import GST may still apply.
Is GST the same as customs duty in Singapore?
No. GST is a broad consumption tax on imported goods and domestic supplies, while customs duty and excise duty apply only to specific dutiable categories. A non-dutiable import may still be subject to GST.
What is the current GST rate on imports into Singapore?
The prevailing GST rate is 9%, following the rate increase from 8% to 9% on 1 January 2024. Import GST is generally calculated on CIF value, and for dutiable goods on CIF plus applicable duty.
Do low-value ecommerce parcels always escape GST?
No. Low-value goods of S$400 or less imported by air or post may have GST charged at checkout when bought from a GST-registered overseas supplier. If GST is not charged at purchase, import GST treatment depends on the shipment value, mode of import and relief conditions.
Can a free trade agreement remove Singapore import GST?
Generally no. FTAs may reduce or eliminate customs duty for qualifying originating goods, but GST is an internal tax and normally remains payable unless a specific GST relief, suspension scheme or exemption applies.
For traders comparing customs rules across markets, the Customs archive provides related explainers on import duties, permits and cross-border compliance.
