Singapore GST: A Guide for New Businesses

office worker calculating with documents

You didn’t start a business to stress over tax codes. You have goals to chase, customers to serve, and dreams to build. But when you’re setting up in Singapore, GST is one thing you can’t ignore.

Let’s get started. Keep reading to understand the must-know Singapore GST info for new business owners.

 

What Is GST in Singapore and How Does it Work?

Singapore GST (Goods and Services Tax) is a 9% consumption tax applied to most goods and services sold, as well as on imported goods. It’s a way the government collects revenue to support public services, like healthcare and education. But, not everything is taxed. Some goods and services like residential properties, most financial services, and exports are exempt.

In simple, here’s how it works:

  • GST is added to the selling price of most goods and services.
  • Businesses collect GST from customers and pass it on to the government.
  • Businesses can claim credits for the GST they pay on their purchases (called input tax), so the tax applies only to the added value.
  • If your business earns more than S$1 million in taxable turnover a year, you’re required to register for Singapore GST. Smaller businesses can still register voluntarily if it benefits them.

 

 

Who Needs to Register for Singapore GST?

Who Needs to Register for Singapore GST?

You need to register for Singapore GST if your business’s taxable turnover exceeds S$1 million, either in the past year or in the upcoming 12 months. This applies to both established and new businesses.

You must register if:

  • You’ve already earned over S$1 million in the past 12 months (retrospective basis).
  • You expect to earn over S$1 million in the next 12 months (prospective basis).
  • You’re an overseas business selling to customers in Singapore under the Overseas Vendor Registration (OVR) scheme.

Please note that those registration must be done within 30 days from when the obligation arises.  From 1 July 2025, you will have a two-month grace period before needing to charge GST after a prospective registration.

You can choose to register if:

  • Your sales are below S$1 million, but you want to claim GST refunds or boost your credibility.
  • You meet the basic conditions and get approval from IRAS.

Once you’re officially registered for Singapore GST, you will need to charge GST on your taxable sales, file your GST returns regularly, and make sure your payments are made on time. It’s also important to keep clear records for at least five years.

Registration is done online through IRAS myTax Portal and most approvals take around 10 working days.

 

 

How to Register for GST in Singapore

How to Register for GST in Singapore

You need to apply online through the IRAS myTax Portal to register. Follow this procedure to register:

1. Check if You Need to Register

You’re required to register if your taxable turnover exceeds S$1 million. You can also register voluntarily if it’s below that.

2. Complete a Short GST Course (for Voluntary Cases)

If you’re registering voluntarily, IRAS will ask you to complete a quick e-learning course to understand your GST responsibilities.

3. Collect your Documents

Prepare necessary documents such as business registration details, financial statements, and invoices in PDF format.

4. Submit your Application Online

Go to myTax Portal and log in with CorpPass. Fill out the form and upload your documents.

 

5. Wait for IRAS to review

Approval usually takes 10 to 30 working days. They may contact you if they need more details.

6. Start Charging GST

Once you’re registered, you’ll receive a GST number and your effective date. You must begin charging GST from that date.

 

 

What Happens After You Register for GST?

After you register for Singapore GST, you must start filing your GST returns regularly and stay compliant with your new responsibilities as follow:

1. Authorise the Right Person

Before anything else, make sure the person filing your Singapore GST return is authorised via SingPass under the GST (Filing and Applications) e-Service.

2. Gather Your Documents

Prepare all the relevant records like sales and purchase invoices, receipts, output tax collected and input tax paid. Most businesses file every quarter by default. If needed, you can apply to file monthly (with IRAS approval). Even if there is nothing to report you still need to file a ‘NIL’ return.

Note that each return must be filed within one month after your accounting period ends.

For example, if your period ends on March 31 your deadline is April 30.

3. File it Online Through myTax Portal

Access the IRAS myTax Portal using your SingPass to file your GST return electronically under “Business Tax Matters.”

4. Save Your Confirmation

After submitting, save or print the acknowledgement page. Hold on to all GST-related records for at least five years. That includes invoices, receipts, and statements. These documents support your filings and protect your business in case of audits.

5. Pay what You Owe on Time

Any GST collected (output tax) must be paid to IRAS by the filing deadline. If you’re using GIRO, you will get an extra 15 days to make payment.

6. Act Quickly if There’s an Error

Mistakes happen. If you find one after submitting, update IRAS as soon as possible to avoid penalties.

 

 

What are the Pros of Registering for Singapore GST

By becoming GST-registered, you unlock practical benefits that help your business grow, earn trust, and stay ahead in a competitive market. Let’s explore how registering for Singapore GST can make a difference for you:

1. Claim Input Tax Credits

When you’re registered for Singapore GST, you can offset the GST you pay on business expenses against the GST you collect from your sales. This means you get back money that can be reinvested into your business.

2. Enhance Your Credibility

Registered on GST can open doors to better deals, improved credit terms, and new business opportunities.

3. Protect Your Business

Nobody wants to deal with late filings or unexpected penalties. Singapore GST registration helps you stay on the right side of the law. It keeps your books clean and your business protected.

4. Open Bigger Doors

Being registered with GST gives you access to bigger contracts and higher-value deals since many larger organisations including government agencies, only work with GST-registered vendors.

 

What Challenges Should You Expect with GST?

Registering for and managing Singapore GST comes with real challenges. But being aware of them upfront can help you stay prepared. Let’s walk through the tricky parts and how you can manage them:

1. Charging GST Correctly isn’t Always Straightforward

From knowing which products or services are taxable to applying the right rate, handling Singapore GST accurately requires close attention. A simple mistake in how you bill different customers can lead to confusion or even loss. You can use accounting software that automates GST calculations based on your product categories. When in doubt, refer to the IRAS website or consult a GST specialist.

2. Record Keeping can be Overwhelming

Keeping five years worth of detailed GST records sounds exhausting, especially if you’re managing it solo. So, it’s best to start small. Use digital tools to store invoices and receipts in one place. Automate where possible, and create a simple monthly checklist to stay consistent.

3. GST Audits can be Stressful

Audits can happen unexpectedly, and it requires clean records and full transparency. You can manage it by keeping your documentation organized and updated. Consider setting quarterly internal reviews to catch issues early.

 

 

One Tax CM Can Make Your GST Compliance Easier

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You have already taken the first step by learning about Singapore GST. It’s completely normal if you’re feeling overwhelmed. You’re not expected to know it all. That is what One Tax CM is here for. 

We help new businesses handle GST registration, filing, and compliance, ensuring your business stays on track from the start. Let’s take that next step together. Visit www.onetaxcm.com to learn how we can support your business with expert tax services.

 

 

FAQ

1. What is taxable turnover?

Taxable turnover includes the total value of all standard-rated and zero-rated supplies made in Singapore, excluding exempt supplies, out-of-scope supplies, and sale of capital assets.

2. What are the GST rates and how do I handle rate changes?

The current GST rate is 9% (from 1 Jan 2024). Transitional rules apply for supplies spanning rate change dates, such as splitting GST rates on advance payments or deposits.

3. Is GST applicable to all goods and services sold in Singapore?

No, GST applies mainly to standard-rated supplies at 9%, but some goods and services are zero-rated (0%) or exempt, such as exports, international services, residential property sales, and most financial services.

4. What is the Overseas Vendor Registration (OVR) scheme?

Overseas businesses supplying remote services or low-value goods to Singapore consumers must register for GST if turnover thresholds are met and charge GST accordingly.

5. Can I claim GST on business expenses if I am not GST-registered?

No, only GST-registered businesses can claim input tax credits on GST paid for business purchases.