GST registration checker

By MoneyBees

Check whether you must register for GST under IRAS's S$1 million retrospective and prospective tests, by when to apply and when you start charging 9%, with the zero-rated exemption, voluntary and overseas vendor rules.

Frequently asked questions

When must I register for GST in Singapore?

When your taxable turnover was more than S$1 million for a calendar year (retrospective view), or you expect it to be more than S$1 million in the next 12 months (prospective view). Taxable turnover is your standard-rated and zero-rated sales.

What is the deadline to register under the retrospective view?

Apply between 1 and 30 Jan of the year after the calendar year in which turnover passed S$1 million. You are registered from 1 Mar of that year.

What is the deadline under the prospective view?

Apply within 30 days of the date of your forecast. If the forecast is on or after 1 Jul 2025, you are registered 2 months from the forecast date. Before that, registration started on the 31st day.

What counts as a forecast?

A forecast must be backed by documents such as signed contracts or accepted quotations. A forecast based on market assessments, business plans or sales targets does not make you liable.

Do sales of equipment count towards the S$1 million?

No. Sales of capital assets such as machinery, equipment, office buildings and furniture are left out of taxable turnover, as are exempt and out-of-scope sales.

Can I avoid registering if most of my sales are exports?

If more than 90% of your taxable supplies are zero-rated, you can apply to IRAS for exemption from GST registration. IRAS reviews it if the share falls to 90% or below.

Can I register for GST voluntarily?

Yes. You must stay registered for at least 2 years, apply for GIRO, and usually complete IRAS's Overview of GST e-learning course. IRAS may ask for a guarantee.

What is the penalty for registering late?

IRAS backdates your registration and you pay GST on the sales since then. You may also face a fine of up to S$10,000 and a penalty of 10% of the GST due.

Do overseas businesses have to register?

Under the overseas vendor regime, yes, if global turnover is over S$1 million and sales of digital or remote services or low-value goods to Singapore consumers are over S$100,000 a year.

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