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Singapore GST Calculator (9%)

Singapore GST rate is 9% on all domestic supplies of goods and imported remote services. Calculate both forward tax addition and backward reverse extraction on any gross receipt amount.

Standard Statutory Rate

Singapore standard Goods and Services Tax rate is 9%

Currency: S$ (SGD) • Reverse Multiplier: 1 + 0.09

S$
Net Price:S$100.00
GST (9%):+S$9.00
Total Gross:
S$109.00

This tax calculator runs entirely client-side. No invoice amounts or business figures are saved or transmitted.

How GST is calculated in Singapore

In Singapore, the statutory goods and services tax rate of 9% is applied to taxable products and services.

Add Tax (Exclusive): Gross = Net × (1 + 0.09)

Reverse Tax (Inclusive): Net = Gross ÷ (1 + 0.09)

Extracted Tax: Tax Amount = Gross - Net

Invoicing & Compliance Best Practices

  • Tax Invoices: Clearly separate the pre-tax net sum from the statutory 9% GST line item.
  • Reverse Charge: For cross-border B2B purchases, verify whether reverse-charge accounting mechanisms apply under local regulations.
  • Exemptions: Certain essential items (such as healthcare, education, or staple foods) may qualify for zero-rating or reduced rates.

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