In Singapore’s dynamic business environment, GST registration isn’t necessarily a permanent fixture. Whether you are downsizing, closing your business, or shifting your service model to out-of-scope supplies, deregistration is a standard administrative process.
However, “stopping” GST isn’t as simple as ceasing to charge it. In 2026, the Inland Revenue Authority of Singapore (IRAS) has strict criteria for when and how a business can cancel its registration. At Hallmark Corporate Services, we guide businesses through this transition to ensure no “final filing” penalties are incurred.
Mandatory vs. Voluntary Deregistration
In 2026, there are two distinct paths to cancelling your GST registration:
A. Mandatory Cancellation (Compulsory)
You must apply for deregistration within 30 days if:
- Your business has stopped operating or has ceased making taxable supplies.
- The business has been sold or transferred as a whole to another person.
- Your business structure has changed (e.g., from a sole proprietorship to a private limited company).
B. Voluntary Cancellation
You may apply to deregister if:
- You are certain your taxable turnover for the next 12 months will be S$1 million or less.
- The 2-Year Rule: If you previously registered for GST on a voluntary basis, you must remain registered for at least 2 years before you are eligible to cancel.
The Final Compliance Hurdle: The GST F8 Return
Once IRAS approves your application, your most critical task is filing the GST F8 (Final Return). This is not a standard F5 return; it requires a “clean break” from the GST system.
- Accounting for Business Assets: If you held business assets on your last day of registration for which you previously claimed input tax, and the total market value of those assets exceeds S$10,000, you must account for output tax (at 9%) on these assets in your F8 return.
- Outstanding Supplies: You must account for GST on any supplies where goods were delivered or services performed before the cancellation date, even if the invoice is issued afterward.
- Timeline: The F8 return and any final tax payment must be submitted within one month of the end of your final accounting period.
Key Deregistration Requirements (2026 Checklist)
| Step | Action Required |
| Apply Online | Submit via myTax Portal (GST > Apply for Cancellation). |
| Stop Charging | Cease charging GST from the Effective Date of Cancellation. |
| Tax Invoices | Update your system to issue normal invoices (without GST). |
| Final Filing | Lodge the GST F8 return and settle outstanding balances. |
| Record Keeping | Retain all business and GST records for at least 5 years. |
Why Businesses Deregister in 2026
While being GST-registered allows for input tax claims, many small businesses in 2026 choose to deregister for three main reasons:
- Administrative Savings: Eliminating the cost of monthly or quarterly GST accounting and filing fees.
- Price Competitiveness: For businesses selling primarily to non-GST registered individuals (B2C), removing the 9% GST makes their prices more attractive.
- Audit Risk Mitigation: Reducing the complexity of tax governance and the risk of IRAS penalties for unintentional filing errors.
Common Pitfalls to Avoid
- Failing to Substantiate Projections: For voluntary deregistration, IRAS requires “objective evidence” (e.g., terminated contracts or sales forecasts) to prove your turnover will stay below S$1 million.
- Insolvent EPCs: If your company is being struck off or liquidated, the liquidator must ensure the F8 is filed before the company is dissolved.
- Late F8 Filing: In 2026, the penalty for late submission of an F8 return is an immediate S$200, plus S$200 for every month it remains outstanding (up to S$10,000).
A Clean Exit Strategy
Deregistering from GST is a strategic move that requires careful timing. Filing your final F8 incorrectly or missing the 30-day mandatory window can lead to “Estimated Notices of Assessment” and heavy penalties that follow directors even after a company is closed.
At Hallmark Corporate Services, we manage the entire GST Deregistration Cycle. Is your business turnover trending below the S$1 million mark? Would you like our tax specialists to review your eligibility for GST deregistration and manage your 2026 final filing today?