FREE TOOL · SINGAPORE GST

GST registration eligibility checker

Check whether your Singapore business may need compulsory GST registration based on last year's taxable turnover and the next 12 months' expected turnover.

Free to useNo email requiredBased on current IRAS tests

Is the business already GST-registered?

YesNo

Taxable turnover for the last completed calendar year

Include standard-rated and zero-rated supplies. Exclude exempt and out-of-scope supplies and sales of capital assets.

Do you reasonably expect taxable turnover to exceed S$1 million in the next 12 months?

YesNoNot sure

Which best describes the supplies included in your turnover?

Mostly local taxable sales (9% GST)Mostly exports or zero-rated servicesMixed supplies or not sure

Your result will appear here

Answer the questions to check the retrospective and prospective GST registration tests.

Retrospective test

Registration is generally compulsory when taxable turnover for the completed calendar year was more than S$1 million.

Prospective test

Registration is generally compulsory when there are reasonable grounds to expect taxable turnover above S$1 million in the next 12 months.

Scope and official guidance

This checker covers the common compulsory-registration tests for local businesses. It does not determine special cases involving overseas vendors, reverse charge, business transfers, aggregation rules or exemption applications.

Read the IRAS registration guidance

This tool provides general information and is not a ruling or tax advice. Confirm your position with IRAS or a qualified adviser before acting. Rules checked 27 June 2026.