Singapore · GST Reg. No.
Singapore GST Number Checker
Check a Singapore GST registration number — usually the business’s UEN — and see the registered business name.
What is a Singapore GST registration number?
A GST registration number identifies a business registered for Goods and Services Tax with the Inland Revenue Authority of Singapore (IRAS). For most businesses it is the same as their UEN — 200817984R for Google Asia Pacific Pte. Ltd. — while others receive a separate IRAS number, such as M2-1234567-K.
Singapore GST registration number formats
Either the business’s UEN, or an IRAS-issued number: M, eight digits and a letter.
IRAS illustration: M2-1234567-K (written M21234567K). Real example using a UEN: 200817984R (Google Asia Pacific Pte. Ltd.).
- Usually the UEN: Most GST-registered businesses use their UEN as their GST number.
- M-numbers: Separate IRAS numbers start with M and are often printed with hyphens; the checker removes them.
- Not found: A company that is not GST-registered — or uses a different GST number — will not be found.
- Business name: A registered number returns the business name.
How to check a Singapore GST number
- 1 Find the GST registration number on the supplier’s tax invoice.
- 2 Enter it above, with or without hyphens. The checker looks it up in the GST register.
- 3 Compare the returned business name with your supplier.
- 4 Need the background on Singapore IDs? Read our Singapore tax ID guide.
Frequently Asked Questions
What does a Singapore GST registration number look like?
For most businesses it is their UEN — for example 200817984R for Google Asia Pacific. Otherwise IRAS issues a separate number, typically M followed by 8 digits and a letter, written like M2-1234567-K.
Who gets a GST number that differs from the UEN?
IRAS issues a separate GST registration number where the UEN cannot be used — for example members of a GST group, divisions registered separately, and entities without a UEN.
How do I check whether a Singapore business is GST-registered?
Enter the GST registration number in the checker on this page: a registered number returns the business name. IRAS also offers a public GST Registered Business Search on its website, with no login needed.
Why is a real Singapore company not found?
Because it is not GST-registered under that number. Not every company is registered for GST, and some use a separate GST number. Check the UEN to confirm the format, and ACRA’s Bizfile to confirm the company exists.
What is the current GST rate in Singapore?
The standard GST rate has been 9% since 1 January 2024.
Does a GST invoice have to show the GST registration number?
Yes. A tax invoice issued by a GST-registered business must show its GST registration number.
Last reviewed: , against official sources.
Validate tax IDs at scale
Check Singapore GST numbers and tax IDs from 100+ countries in one API call.