Key takeaways
- The GST rate in Singapore is currently 9%. IRAS says GST-registered businesses must charge and account for GST at 9% on sales of goods and services in Singapore, unless a sale is zero-rated or exempt (IRAS: current GST rates).
- IRAS says you must register for GST if your taxable turnover is more than S$1 million at the end of a calendar year (retrospective view), or is expected to be more than S$1 million in the next 12 months (prospective view).
- Retrospective: apply between 1 and 30 January of the following year, and you are registered from 1 March. Prospective: apply within 30 days of your forecast date.
- Voluntary registration means staying registered for at least 2 years, completing IRAS’s “Overview of GST” e-Learning course, using GIRO and, for applications from 1 April 2026, complying with the GST InvoiceNow Requirement.
- Your POS sales reports are the easiest way to track the threshold month by month. Once registered, set 9% GST, service charge and receipts correctly in the POS from your effective date, and not a day earlier.
- This is general information, not tax advice. Check your own position with IRAS or your accountant.
Most new cafés, stalls and restaurants in Singapore start out without GST registration. Then a good year arrives, a second outlet opens, or a catering contract lands, and the S$1 million question suddenly matters. Register too late and IRAS can backdate your registration, so you owe GST on sales you never charged it on. Register voluntarily without thinking it through and you are locked in for two years.
This guide sets out what IRAS actually requires, based on its published pages as of September 2026, and what changes in your outlet and your POS once you are registered. It does not replace advice from IRAS or a qualified accountant, especially if you own several businesses or entities.
Do you have to register? The S$1 million test
The main GST registration requirement in Singapore is a turnover test. IRAS’s page Do I need to register for GST says you must register if your taxable turnover is:
- Retrospective view: more than S$1 million at the end of the calendar year (1 January to 31 December); or
- Prospective view: expected to be more than S$1 million in the next 12 months.
Taxable turnover is the total value of taxable supplies made in Singapore, which includes standard-rated supplies (such as your food and drink sales) and zero-rated supplies. It excludes exempt supplies, out-of-scope supplies and the sale of capital assets, such as selling off old kitchen equipment or furniture.
Two points catch F&B owners out:
- How turnover is combined. For a sole proprietor, IRAS combines the turnover of all your sole proprietorship businesses, whether or not they are registered with ACRA. Two stalls under your own name are counted together. Partnerships with the same partners are also combined. A company is assessed on its own, together with any sole proprietorships the company owns.
- Turnover, not sales targets. IRAS says you do not need to register on a prospective basis if there is no certainty in your forecast, for example one based only on market assessment, business plans or sales targets. You do need supporting evidence, such as signed contracts, accepted quotations, or income statements showing the past 12 months were already close to S$1 million and trending up.
IRAS also provides a GST Registration Calculator on the same page, which is worth running with your accountant before you decide either way.
Timelines: when to apply and when registration starts
The two views have different deadlines. IRAS’s own examples are summarised below.
| Basis | When to apply | Effective date of registration |
|---|---|---|
| Retrospective: taxable turnover for 1 Jan to 31 Dec exceeded S$1 million | Between 1 and 30 January of the following year | 1 March of the following year |
| Prospective: you reasonably expect more than S$1 million in the next 12 months (liability arising on or after 1 July 2025) | Within 30 days after the date of your forecast | 2 months from the date of your forecast |
The two-month grace period for prospective registrations was announced by the Second Minister for Finance on 28 February 2025. Before that, registration took effect on the 31st day after the forecast date. Note that the deadline to apply is still 30 days.
There is also an exception. If you exceeded S$1 million in the calendar year but are certain that the next 12 months will not exceed it because of specific circumstances (IRAS lists examples such as large-scale downsizing, closure of outlets, loss of a major contract or cessation of business), and you keep documentary evidence and a detailed computation, you may not be required to register. You must still monitor turnover at the end of the next calendar year.
What happens if you are late
IRAS is clear about the consequences of late notification:
- Your registration is backdated to the date you should have been registered.
- You must account for and pay GST on past sales from that date, even if you did not collect GST from customers.
- You may face a fine of up to S$10,000 and a penalty equal to 10% of the GST due for late notification, and prosecution may apply.
IRAS says that if you apply and voluntarily disclose that you are late, it will generally waive the late notification fine and penalties, although the backdated GST is still payable. For a café on thin margins, several months of GST paid out of your own pocket is a real cash hit, which is why monitoring matters.
Voluntary registration: conditions and trade-offs
You can register voluntarily even when you are below the threshold. IRAS’s page on factors to consider before registering voluntarily and its e-Tax Guide Conditions for GST Voluntary Registration (published 30 January 2026) set out the rules.
Before you apply, you must:
- Have the company director, sole proprietor, partner, trustee or preparer of GST returns complete IRAS’s e-Learning course “Overview of GST” and its quiz. This is waived if the director or owner has experience managing other GST-registered businesses, or if your GST returns are prepared by an Accredited Tax Adviser or Accredited Tax Practitioner.
- Apply for GIRO for GST payments and refunds.
- Provide a guarantee if IRAS requires one.
After registration, you must:
- Remain GST-registered for at least 2 years.
- Maintain GIRO for GST payments and refunds.
- Make taxable supplies within 2 years if you had not started when you applied.
- Comply fully with the responsibilities of a GST-registered business.
- Comply with the GST InvoiceNow Requirement where it applies to you (see the next section).
IRAS says it may cancel your registration if you do not meet these conditions. If you are closing or selling the business, see our guide to selling an F&B business for the GST steps.
Does voluntary registration make sense for an F&B outlet?
The main benefit is claiming the GST you pay on purchases (input tax), subject to IRAS’s conditions. That helps most when your suppliers, landlord and equipment vendors charge GST. The cost is that most of your customers are consumers who cannot claim GST back, so you either raise menu prices or absorb it. IRAS’s own example shows the effect: on a S$200 sale where you keep the price unchanged, GST is S$16.51 (9/109 of S$200), and gross profit falls from S$100 to S$83.49. Because you are locked in for two years, IRAS advises assessing the costs and benefits over a two-year period.
IRAS also notes one practical upside: if you are close to the threshold, registering voluntarily means you no longer need to monitor turnover constantly.
InvoiceNow for new voluntary registrants
InvoiceNow is Singapore’s Peppol-based e-invoicing network. Under IRAS’s GST InvoiceNow Requirement, GST-registered businesses must submit invoice data to IRAS through InvoiceNow-Ready Solutions, in phases:
| Implementation date | Who it applies to |
|---|---|
| 1 Nov 2025 | Companies that register for GST voluntarily within 6 months of incorporation |
| 1 Apr 2026 | Businesses that apply for voluntary GST registration on or after 1 Apr 2026, regardless of incorporation date or business structure |
| 1 Apr 2028 | Businesses that apply for compulsory GST registration on or after 1 Apr 2028, and existing GST-registered businesses with total annual supplies of S$200,000 or less |
| 1 Apr 2029 to 1 Apr 2031 | Remaining existing GST-registered businesses, phased by total annual supplies |
So if you register voluntarily today, InvoiceNow applies from the start. If you register compulsorily, the phase that applies depends on when you register and your annual supplies. IRAS says it has notified businesses registered before 2026 of their implementation date and will tell others later, and it publishes an implementation date calculator. We cover what InvoiceNow involves for a restaurant, and how it relates to your POS and accounting software, in our InvoiceNow guide for Singapore businesses.
How to apply
IRAS’s page on applying for GST registration sets out five steps:
- Decide the type of registration: compulsory or voluntary.
- Complete the e-Learning course. It is compulsory for voluntary registrants (subject to the exceptions above) and IRAS encourages all applicants to take it.
- Submit the application on myTax Portal, with supporting documents attached in softcopy.
- Processing. IRAS says it processes 60% of applications within 10 working days and the rest within 30 days, provided GIRO (for voluntary registrants) and any requested documents or guarantee are in place.
- Notification. IRAS sends a letter with your GST registration number and effective date of registration. Voluntary registrants are registered within 2 weeks of the approval letter.
IRAS is explicit that you must not charge or collect GST before your effective date of registration. That date is what drives your POS switch-over.
What changes in your outlet once you are registered
IRAS’s page on the responsibilities of a GST-registered business lists what you must do from your effective date. For an F&B business, these are the ones that touch daily operations:
- Charge GST at 9%. The current GST rate is 9% on standard-rated supplies in Singapore.
- Price display. Prices shown to the public must generally include GST. IRAS gives hotels and F&B outlets that impose a service charge a concession to show GST-exclusive prices with a prominent statement, but takeaway-only items not subject to service charge must be shown GST-inclusive. We explain the rules, with worked bill calculations, in service charge and GST for Singapore restaurants.
- Tax invoices and receipts. Your GST registration number must appear on tax invoices, simplified tax invoices and receipts. See what a GST tax invoice or receipt must show for the full list. IRAS allows a simplified tax invoice where the total payable, including GST, does not exceed S$1,000, which covers most restaurant bills. Corporate catering orders above that need a full tax invoice. Our guide to catering POS and invoicing covers the order side.
- Records. Keep business and accounting records for at least 5 years, even after you stop trading or deregister. See how to close a restaurant in Singapore for the wider checklist.
- Notify changes such as a change in ownership or business constitution within 30 days.
Filing GST F5 returns
GST returns (form GST F5) are filed on myTax Portal, and both the return and payment are due one month after the end of each accounting period, per IRAS’s due dates page. The standard accounting periods are quarterly, aligned to your financial year-end, and you can ask IRAS for monthly filing, per its page on changing GST accounting periods. You must file a nil return even in a period with no activity. Our step-by-step guide to filing GST F5 returns explains each box. IRAS may impose a S$200 late-submission penalty, then S$200 for each further completed month outstanding, up to S$10,000 per return, and a 5% penalty on GST paid late. We look at planning for these payments in restaurant cash flow management, and at how accounting software helps in best accounting software for F&B in Singapore.
Setting up your POS for GST
The day your registration takes effect, every bill from your POS needs to be right. A short checklist:
- Switch-over date. Schedule the GST change for the opening of business on your effective date. Bills before that date must not carry GST. If you open before midnight and close after, agree with your accountant how to handle bills that straddle the date.
- Rate and order of calculation. Set GST at 9%, calculated on the total including service charge. IRAS’s F&B example is S$100 of food, S$10 service charge, S$9.90 GST on S$110, S$119.90 total (see IRAS’s hotel and F&B page).
- Tax-inclusive or exclusive items. Decide which menu items are priced GST-inclusive (for example, takeaway-only items without service charge) and which are GST-exclusive with service charge, and make sure the menu, QR ordering page and online ordering page show prices consistently.
- Receipt header. Add your GST registration number and make sure the receipt shows the GST amount.
- Delivery and online sales. Check how sales through delivery platforms and your own online ordering page are recorded, and ask your accountant how each should be reported.
- Reports. Make sure you can pull GST collected, service charge, discounts and net sales by period, matching your GST accounting periods.
ChaChaCha applies 9% GST and service charge to bills automatically, with manager-approved waivers, and its reports give you sales by period to review against the threshold and your GST returns. If you use Xero, ChaChaCha’s Xero integration connects your POS sales to your books, so your accountant is not retyping daily totals before each GST F5. Payments across PayNow, NETS and cards come with automated reconciliation, which makes the quarter-end review shorter. We can walk you through the GST and service charge settings for your outlet before your effective date: contact us.
Worked example: a growing café watching the threshold (hypothetical)
The café and figures below are hypothetical, for illustration only. A single-outlet café, owned by a private limited company, sells only standard-rated food and drinks in Singapore. The owner exports monthly net sales (excluding GST, which it does not charge yet, and excluding any sale of old equipment) from the POS each month.
| Period | Net sales (S$) | Running total (S$) |
|---|---|---|
| Oct to Dec 2025 | 195,000 (62k, 65k, 68k) | n/a (previous calendar year) |
| Jan to Mar 2026 | 217,000 (70k, 72k, 75k) | 217,000 calendar year to date |
| Apr to Jun 2026 | 240,000 (78k, 80k, 82k) | 457,000 calendar year to date |
| Jul to Sep 2026 | 263,000 (85k, 88k, 90k) | 720,000 calendar year to date; 915,000 over the past 12 months |
Calendar-year sales from January to September 2026 total S$720,000. What should the owner do?
- Retrospective check: if October to December adds more than S$280,000 (roughly S$93,000 a month, which the trend suggests is possible), the 2026 calendar year exceeds S$1 million. The café would then apply between 1 and 30 January 2027 and be registered from 1 March 2027.
- Prospective check: the rolling 12 months are already S$915,000 and rising every month. IRAS’s own example of a business with a past-12-month turnover of S$900,000 growing 15% a year is treated as a forecast that triggers registration. If the owner reasonably expects more than S$1 million in the next 12 months, the café must apply within 30 days of that forecast date, and registration takes effect 2 months after it.
- The practical step: at the end of September, the owner takes the POS monthly sales report, the P&L and the growth trend to the accountant and decides, in writing, whether the prospective view applies. If it does, the application goes in by the end of October.
- Pricing decision: the owner also decides whether to add 9% GST on top of current prices, adjust the menu, or absorb part of it, and plans the menu reprint and POS switch-over for the effective date.
The point of the example is that a monthly POS export takes minutes, and it is far cheaper than finding out in February that your registration has been backdated.
Deregistration: cancelling GST registration
IRAS’s page on cancelling GST registration covers both compulsory and voluntary cancellation.
- Compulsory: you must apply within 30 days when you stop making taxable supplies and do not intend to resume, your business ceases, the business is transferred as a whole to someone else, or the form of your business entity changes (for example, from sole proprietorship to private limited company).
- Voluntary: you may apply if you are no longer liable to register. If you registered voluntarily, you must first have been registered for at least 2 years.
- After cancellation: you must not charge or collect GST or issue tax invoices from the effective date of cancellation. Remove GST and the registration number from your POS receipts on that date.
- Final return (GST F8): you account for GST up to the last day of registration and, if the total open market value exceeds S$10,000, on business assets held on that day for which input tax was claimed, including fixed assets such as kitchen equipment and unsold inventory.
If you are selling or closing an outlet, bring GST into the plan early. The F8 and the asset rule can create a bill at the worst possible time.
Sources
- IRAS: Do I need to register for GST
- IRAS: Factors to consider before registering voluntarily for GST and e-Tax Guide: Conditions for GST Voluntary Registration
- IRAS: Applying for GST registration
- IRAS: GST InvoiceNow Requirement
- IRAS: Responsibilities of a GST-registered business and Current GST rates
- IRAS: Due dates and requests for extension and Changing GST accounting periods
- IRAS: Cancelling GST registration and Hotel and food & beverage
This article is general information based on IRAS pages checked in September 2026. It is not tax advice. Rules change, so check with IRAS or your accountant before acting.
