Business & Work
Singapore GST Calculator - Add or Remove 9% GST
Add or remove Singapore GST - 9% rate pre-filled, in SGD.
Free to useNo sign-up requiredNo watermarkRuns in your browser
Last reviewed: 30 September 2026 by Vishal Senthilkumar
Singapore's GST rate has been 9% since 1 January 2024, having risen from 8% in 2023 and 7% before that. This calculator has the current 9% rate pre-filled, so you can go straight to entering an amount in SGD.
It works in both directions: add GST to a price, or work out the GST-exclusive amount and the GST itself from a GST-inclusive price. Exports and international services are typically zero-rated rather than taxed at the standard rate.
How this tool works
Choose add or remove
Adding GST to a price and extracting it from a GST-inclusive price are different calculations.
The 9% rate is already set
Tap 0% instead for zero-rated goods and services.
Enter the amount in SGD
The GST-exclusive price if adding GST, or the total if removing it.
How it works
Adding GST multiplies the amount by 9% and adds it on. Removing GST divides the GST-inclusive total by 1.09 to get the GST-exclusive amount - not a straight subtraction of 9%, which would overstate the GST.
Singapore's GST rate has changed twice in recent years (7% to 8% in 2023, then 8% to 9% in 2024), so it is always worth double-checking you are using the current figure rather than an outdated one from an older source.
Worked examples
S$100 plus 9% GST
GST is S$9, so the total charged is S$109.
An S$109 price that already includes 9% GST
The GST-exclusive amount is S$100 and the GST is S$9.
Frequently asked questions
What is the current GST rate in Singapore?
9%, effective since 1 January 2024.
What was the GST rate before 2024?
8% from 1 January 2023 to 31 December 2023, and 7% before that.
Is this official IRAS guidance?
No - this is a general calculation tool. Confirm the correct GST treatment for your specific goods or services with IRAS or an accountant.