Add or remove GST at Singapore's standard rate of 9%. Pre-set to SGD — switch modes to work forwards from a net price or backwards from a GST-inclusive total.
S$400.00 × 1.09 = S$436.00
Adding 9% GST to a smartwatch priced at S$400.00 (net) gives S$436.00 gross — that's S$36.00 of GST.
S$50.00 ÷ 1.09 = S$45.87
Removing 9% GST from a hawker feast marked S$50.00 (gross) leaves S$45.87 net — the GST portion is S$4.13.
| Rate | Applies to |
|---|---|
| 9% standard | Most goods and services |
| 0% | Zero-rated exports & international services; most local sales are standard-rated |
Businesses in Singapore generally must register for GST once taxable turnover reaches S$1,000,000 turnover. GST registration and returns are administered by Inland Revenue Authority of Singapore (IRAS).
The standard GST rate in Singapore is 9%. Reduced rates of 0% apply to items such as zero-rated exports & international services; most local sales are standard-rated. (Rates as of 2026-07-13.)
Divide the GST-inclusive price by 1.09 (that is, 1 + 9%). Removing 9% GST from a hawker feast marked S$50.00 (gross) leaves S$45.87 net — the GST portion is S$4.13.
Multiply the net price by 1.09. Adding 9% GST to a smartwatch priced at S$400.00 (net) gives S$436.00 gross — that's S$36.00 of GST.
You must register for GST in Singapore once your taxable turnover reaches S$1,000,000 turnover. Registration is handled by Inland Revenue Authority of Singapore (IRAS).
Rates and thresholds shown as of 2026-07-13. Tax rules change — confirm current figures with Inland Revenue Authority of Singapore (IRAS) before relying on them.