Singapore GST Calculator & Rate
Add Singaporean GST to a net price or take it out of a gross (tax-inclusive) amount, with Singapore's verified standard rate of 9% preloaded. All math runs locally in your browser.
Singapore GST calculator
Type an amount into any of the three boxes; the other two follow at the rate you pick.
GST = 100.00 × 9% = 9.00; gross = 100.00 + 9.00 = 109.00
Worked in whole cents: the tax is rounded to the nearest cent (half a cent goes up) and the other amount is the difference, so the boxes always add up. From a gross amount the tax is gross × rate ÷ (100 + rate); from a typed tax amount the net is worked back and your tax amount stays as typed. Your tax authority may set its own rounding rules for invoices.
How much is GST in Singapore?
The standard GST rate in Singapore is 9%. Other rates: 0% (exports, qualifying international services). Source: Ministry of Finance (MOF), verified 2026-09-25.
MOF: GST was 3% when introduced on 1 April 1994 and rose to 8% in 2023 and 9% in 2024. IRAS: the current rate is 9%; exported goods and international services are zero-rated.
Singapore GST worked examples
Add GST: gross = net × (1 + rate ÷ 100). Extract GST: tax = gross × rate ÷ (100 + rate), and net = gross − tax.
| Rate | Tax share of a gross price | Net 100 → tax / gross | Net 1,000 → tax / gross | Gross 100 → tax / net | Gross 1,000 → tax / net |
|---|---|---|---|---|---|
| 9% standard | 9/109 ≈ 8.2569% | 9.00 / 109.00 | 90.00 / 1,090.00 | 8.26 / 91.74 | 82.57 / 917.43 |
Issuing a GST-compliant invoice?
Rates are only half of it — what must appear on the invoice (tax numbers, rate per line, reverse-charge wording for cross-border B2B) is covered in the VAT & GST invoicing guide, and the free VAT invoice generator produces a compliant PDF. The full rate dataset behind this page (42 jurisdictions, source per row) is downloadable: CSV · JSON (CC BY 4.0).
Singapore GST FAQ
What is the GST rate in Singapore in 2026?
The standard GST rate in Singapore is 9%. Other rates: 0% (exports, qualifying international services). Source: Ministry of Finance (MOF), verified 2026-09-25. Rates change, so confirm against the linked source before filing anything.
How do I add GST to a net price?
Multiply the net amount by (1 + rate ÷ 100). At 9%, a net price of 100.00 becomes 109.00 gross, of which 9.00 is GST. The calculator on this page does it with Singapore's verified rates preloaded.
How do I work out the GST included in a gross price?
Multiply the gross (tax-inclusive) amount by rate ÷ (100 + rate), then subtract the result to get the net price. At 9% the share is 9/109 (about 8.2569%): a gross price of 100.00 contains 8.26 GST and 91.74 net. Type the gross amount into the calculator's gross box to do this for any amount.
Where does this rate come from?
Every rate in our dataset cites the source it was checked against. For Singapore, that is Ministry of Finance (MOF) (linked on this page), verified on 2026-09-25. The full 42-jurisdiction dataset is downloadable under CC BY 4.0, and every verification pass is logged in our public changelog.
Not tax advice. Rates and rules change; the verification date above tells you when we last confirmed this figure, not that it is still current today. Confirm against the linked official source before filing or invoicing.