GST Registration Services in Singapore

GST registration becomes mandatory when your business’s taxable turnover exceeds S$1 million. At Ledgen Group, we provide professional GST registration services in Singapore, assisting businesses with eligibility assessment, IRAS document preparation, application submission, and post-registration support.

Whether your business has reached the compulsory registration threshold or is considering voluntary registration, our GST specialists manage the entire process on your behalf, ensuring compliance and a smooth registration experience from start to finish.

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GST Registration in Singapore

Ledgen Group provides professional GST registration services for businesses in Singapore, covering eligibility assessment, IRAS document preparation, submission, and post-registration support. Whether your business has crossed the compulsory registration threshold or is considering voluntary registration, our team manages the process on your behalf from start to finish.

Our GST registration service is priced at SGD 1,500, inclusive of all charges. Contact us for a quotation or book an appointment to discuss your requirements.

What Is GST?

Goods and Services Tax (GST) is a tax on the supply of goods and services in Singapore, currently charged at 9%. Registered businesses collect GST from their customers and remit it to the Inland Revenue Authority of Singapore (IRAS). In return, GST-registered businesses may claim back the GST paid on their qualifying business expenses, known as input tax.

Who Must Register for GST in Singapore?

GST registration becomes compulsory once a business’s taxable turnover exceeds S$1 million. There are two bases on which this obligation arises.

Retrospective Basis

If your taxable turnover for the last calendar year (1 January to 31 December) has exceeded S$1 million, you are required to notify IRAS within 30 days from the end of that calendar year. Your effective GST registration date will be the first day of the third month following the month in which you exceeded the threshold.

For example: if your taxable revenue for the calendar year ending 31 December 2024 exceeds S$1 million, you must notify IRAS by 30 January 2025.

Prospective Basis

GST registration is also required if you can reasonably expect your taxable turnover to exceed S$1 million in the next 12 months, for example because of a signed contract or secured business pipeline. You must notify IRAS within 30 days of that event occurring.

Since 1 July 2025, businesses registering on the prospective basis are given a two-month grace period before they need to start charging GST, extended from the previous one-month period. This applies where the forecast date falls on or after 1 July 2025. The 30-day notification deadline to IRAS is unchanged — the grace period only defers when you start charging GST, not when you must apply. From your effective registration date, you’re still required to keep proper records and file GST returns on time.

Businesses approaching the S$1 million threshold are advised to monitor their taxable supplies regularly and prepare early.

Voluntary GST Registration in Singapore

Businesses below the S$1 million threshold may choose to register voluntarily if it supports their operational or commercial needs. Common reasons include:

Claiming input tax. Businesses that incur substantial GST on expenses such as rent, renovation, equipment, or professional fees can recover that input tax through registration, reducing net operating costs.

Client or contractual requirements. Some larger corporates, statutory boards, and institutions require their suppliers to be GST-registered. Voluntary registration can open access to these engagements.

Planning ahead for growth. Registering before the compulsory threshold is crossed avoids compliance gaps and penalties during periods of rapid revenue growth.

Voluntary registration comes with conditions set by IRAS. Businesses must remain GST-registered for a minimum of two years, must be on interbank GIRO for GST payments and refunds, and must participate in GST InvoiceNow. Ledgen will confirm all applicable conditions as part of our eligibility review.

Special Cases: Reverse Charge and Overseas Vendor Registration

Certain businesses may be required to register for GST even if their turnover has not reached S$1 million.

Reverse Charge

If your business is not eligible for full input tax credit and purchases overseas services (such as software subscriptions, cloud services, or foreign consultancy) or imports low-value goods below S$400, you may be required to account for GST under the reverse charge regime. This typically applies to businesses such as charities, banks, insurance firms, and property developers with mixed-use activities.

Overseas Vendor Registration (OVR)

Overseas businesses without a physical presence in Singapore may need to register for GST if they supply remote services or low-value goods to non-GST-registered customers in Singapore, and their global turnover exceeds S$1 million. If you are a foreign business with Singapore customers, Ledgen can assess whether OVR applies to your situation.

Exemption from GST Registration

Businesses that make only zero-rated supplies, such as exports of goods from Singapore or the provision of international services, may apply to IRAS for an exemption from GST registration. Supporting documentation is required, as IRAS will review each application individually.

Consequences of Late GST Registration

Failing to register on time carries significant financial and legal risk. IRAS may:

• Require GST to be paid on past sales even where it was not charged to customers
• Backdate GST returns from the date liability to register arose
• Impose fines of up to S$10,000
• Apply a 10% penalty on any unpaid GST
• Initiate prosecution in serious cases

Voluntary disclosure to IRAS before penalties are imposed can help reduce the financial consequence of late registration. Ledgen has experience managing this process for businesses that discover a registration obligation after the fact.

What Our GST Registration Service Includes

Our GST registration service is priced at SGD 1,500, inclusive of all IRAS and administrative charges. The service covers:

• Assessment of whether compulsory or voluntary registration applies to your business
• Review of your taxable supplies and turnover against IRAS thresholds
• Preparation of all required IRAS registration documents
• Submission of the GST registration application to IRAS
• Follow-up with IRAS throughout the processing period
• Responses to any IRAS requests for clarification or additional documents
• Confirmation of your GST registration number and effective registration date

Please note that IRAS may in some cases request GST reports for one or more prior periods as part of the registration process. If this applies, additional fees will be discussed with you before they are incurred.

Contact us to discuss your situation before proceeding.

Documents Required for GST Registration

The documents required will vary depending on the type of registration. Ledgen will confirm the full checklist based on your business profile. The following are commonly requested by IRAS:

• Business profile from the Accounting and Corporate Regulatory Authority (ACRA)
• Financial statements or management accounts showing revenue
• Invoices, contracts, or sales records supporting the revenue figures
• Bank statements (typically three to six months)
• Description of business activities and the nature of taxable supplies

For voluntary registration, IRAS may also request evidence of intent to make taxable supplies, such as signed contracts or business plans.

The GST Registration Process

Step 1: Eligibility Assessment

Ledgen reviews your business’s taxable turnover, activities, and corporate profile to confirm which type of registration applies and whether any special regimes (reverse charge or OVR) are relevant.

Step 2: Document Preparation

We prepare and compile all documents required by IRAS, including the registration application form and supporting financial records.

Step 3: IRAS Submission

Ledgen submits your GST registration application through the IRAS myTax Portal and manages all correspondence with IRAS during the processing period.

Step 4: Registration Confirmation

IRAS typically takes two to six weeks to process a GST registration application, depending on the complexity of the business and whether additional documents are requested. Once approved, you will receive your GST registration number and effective date of registration.

GST Filing After Registration

Once registered, your business must file quarterly GST returns (Form F5 or F8) with IRAS and remit any GST payable by the relevant deadlines. Late or incorrect filing can result in penalties. Ledgen’s tax services team can assist with ongoing GST compliance, including quarterly return preparation and IRAS submission. Speak to us about our Singapore Tax Services if you require ongoing GST filing support.

Why Choose Ledgen Group for GST Registration?

Ledgen Group has provided corporate and tax services to businesses in Singapore since 2003. Our GST professional services team handles registration as part of a broader suite of tax, accounting, payroll, and corporate secretarial services, which means clients can manage their full compliance obligations through one firm. We stay current with IRAS regulatory requirements and handle all correspondence with the authority directly, so business owners can focus on their core operations.

Get in touch with us to discuss your GST registration requirements.