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Singapore GST Calculator

Standard GST rate: 9% · SGD · verified May 2026 · source: IRAS

S$
Net
SGD 100.00
GST
SGD 9.00
Gross
SGD 109.00

SGD 100.00 × 9% = SGD 9.00 GST, total SGD 109.00

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How GST works in Singapore

Singapore uses GST at a standard rate of 9%. This calculator shows the math at that rate, but the application of the rate to specific goods, services, or business situations depends on local rules.

For accurate, current information about GST in Singapore, please consult the official tax authority. Rules around registration thresholds, reduced rates, sector-specific exemptions, and filing requirements vary significantly by country.

Where to verify the current rate

The Singapore tax authority is responsible for current rates and rules. Check their official website for the latest information before relying on any calculator output for important decisions.

Official source: IRAS

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