Singapore GST Calculator: Add or Remove 9% GST

Add or remove Singapore GST in one step: 9% since 1 January 2024, with the older 8% and 7% rates for past invoices, and the price before and after tax.

GST
β€”Price before GST
β€”Price with GST

Only GST-registered businesses charge GST; registration is compulsory above S$1 million of taxable turnover a year. Financial services, residential rent and some other supplies are exempt.

What it does


Singapore's goods and services tax (GST) is 9% since 1 January 2024, after 8% in 2023 and 7% before. To add GST multiply the price by 1.09; to remove it from a price with GST divide by 1.09, so the GST is 9/109 of the total. Prices shown to consumers must include GST.

How to use it


  1. Type the amount.
  2. Choose whether to add or remove GST and the rate.
  3. Read the GST and the prices before and after tax.

The arithmetic runs in your browser. Nothing you type is sent anywhere and nothing is stored, so you can use these with real numbers.

Frequently asked questions


How much GST is in S$109?
S$9: the price before GST is S$100.

When did GST rise to 9%?
On 1 January 2024, after 8% in 2023.

Do tourists get GST back?
Yes, through the Tourist Refund Scheme on purchases of S$100 or more at participating shops, claimed at the airport.

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