GST Calculator Singapore (9%)
Add or remove GST from any SGD amount. The rate is editable, and the formulas below show the arithmetic so you can check any invoice by hand.
- Free
- No sign-up
- Nothing uploaded
- Updated for 2026
- Last reviewed October 2026
- Reviewed by the Owoode team
- S$ SGD
- GST 9%
- UEN
- A4
- English
Standard rate in Singapore is 9%.
Total with GST
$1,090.00
- Net amount$1,000.0091.7%
- GST$90.008.3%
- Net amount
- $1,000.00
- GST at 9%
- $90.00
- Gross amount
- $1,090.00
Reduced rates, zero rates and exemptions
Singapore has one GST rate. The 9% rate applies to every sale of goods and services in Singapore by a GST-registered business unless the supply is zero-rated or exempt, according to IRAS.
Zero-rated (0%) supplies are exports of goods and international services within section 21(3) of the GST Act. Not every service to an overseas customer qualifies. Exempt supplies, listed in the Fourth Schedule, include financial services, the sale and lease of residential property and the local supply of investment precious metals. Exempt supplies carry no GST and restrict how much input tax the business can claim.
Customer accounting applies to local sales of mobile phones, memory cards and off-the-shelf software above S$10,000 to a GST-registered customer for business use: the supplier charges no GST and the buyer accounts for it.
Prices shown, advertised or published to the public by a GST-registered business must be GST-inclusive.
How to calculate GST in Singapore
Add: tax = net × 0.09; gross = net × 1.09.
Remove: net = gross ÷ 1.09; tax = gross − net.
Standard rate in Singapore is 9%.