Question 1

What is the GST rate in Singapore?

Accepted Answer

Singapore's GST is 9%. Some supplies may be zero-rated or exempt. Always confirm the correct treatment with Inland Revenue Authority of Singapore (IRAS) or a qualified local tax professional.

Question 2

How do I add GST to a price?

Accepted Answer

Multiply the net amount by the GST rate and add it to the net. This calculator does it for you — enter your amount and pick "Add GST".

Question 3

How do I remove GST from a GST-inclusive total?

Accepted Answer

Divide the total by (1 + the rate) to get the net amount, then subtract it from the total to get the GST. Switch this tool to "Remove GST" to do it automatically.

Question 4

When must a business register for GST in Singapore?

Accepted Answer

S$1,000,000 taxable turnover (past or expected next 12 months). Thresholds and rules change, so confirm the current position with IRAS (Inland Revenue Authority of Singapore (IRAS)) or a tax professional.

Question 5

Does Tallium AI calculate GST automatically?

Accepted Answer

Yes. Tallium AI tags GST on every sale, expense and invoice as you trade and builds a GST F5 return-ready summary, so you don't calculate it by hand at filing time.

Singapore GST calculator

GST in Singapore, in plain English

Questions

Stop calculating GST by hand