Do you have to register for GST in Singapore? A List of Things Small Businesses Should Do
Taxes are a big part of running a business in Singapore, and the Goods and Services Tax (GST) is a big part of that. Many small and medium-sized businesses (SMEs)…
Taxes are a big part of running a business in Singapore, and the Goods and Services Tax (GST) is a big part of that. Many small and medium-sized businesses (SMEs) find it hard to understand the rules for registering for GST in Singapore. Do you need it? What are the benefits of signing up by yourself?
This simple checklist will help you understand what your GST duties are and how to fulfill them, so you can make the best decision for the future of your business.
Part 1: Does your business need to sign up for GST?
You must register for GST by law if your business meets one of the following conditions:
✅ The Past Turnover Threshold
In the last 12 months, your business’s taxable turnover at the end of any calendar quarter (like March 31 or June 30) has been more than S$1 million.
✅ The Future Turnover Limit
You have good reason to believe that your business’s taxable turnover will be more than S$1 million in the next year.
What does “taxable turnover” mean? This includes all income from supplies with a standard rate and a zero rate, but not from exempt supplies or sales made outside of Singapore.
Check your sales numbers every three months as a task. The clock starts ticking as soon as you walk in. You have 30 days to register for GST with IRAS.
Part 2: The Decision to Sign Up for GST
You can choose to register for GST even if your sales are less than S$1 million. This is a strategic choice that has a lot of pros and cons.
Voluntary registration has its benefits
- Claim Input Tax: You can get back the GST you paid on things you bought for your business and things you spent money on (this is called input tax). This can really help with cash flow, especially for new businesses that have to buy a lot of equipment.
- Enhanced Business Image: If your business is registered for GST, it may look bigger and more established, which can help when working with other GST-registered businesses.
- No Sudden Compliance Shock: By registering early, you can make sure that your business follows the GST rules from the start, so you won’t have to rush through the process when you reach the required level.
The Drawbacks and Responsibilities
- Increased Administrative Burden: You have to file GST returns every three months and keep detailed records for at least five years.
- Potential Cost to Customers: Adding 9% GST to your prices could make you less competitive than businesses that aren’t registered if most of your customers are consumers (B2C).
- Strict Compliance: Once you sign up, you must follow all of IRAS’s rules. Most of the time, voluntary registration lasts at least two years.
Part 3: How to file your GST and follow the rules
Once your business is registered, it will have to keep following the rules. You need to know this process very well.
How to File a GST Return in Singapore
After you sign up, IRAS will tell you how often you need to file. Most of the time, this happens every three months. Here are the steps to file your GST return in Singapore:
- Record Keeping: Keep all of your sales and purchase invoices, as well as any paperwork you need to import or export.
- Prepare Your GST Return: Add up the total GST you got from customers (output tax) and the total GST you paid to suppliers (input tax).
- File via myTax Portal: You can file your GST F5 return online. You pay IRAS the net amount, which is the difference between the output tax and the input tax. If your input tax is higher, you will get a refund.
Penalties for filing and paying late
IRAS will punish you severely for not following the rules:
- Late Filing: If you file your return after the due date, you will have to pay a S$200 fine right away, and you may have to pay more.
- Late Payment: If you don’t pay your taxes on time, you’ll have to pay a fine of 5% to 10% of the amount you owe.
- Legal Action: If you don’t follow the rules, you could be sued and even go to jail.
Part 4: Using technology and best practices to make it easier to follow the rules
Managing GST by hand doesn’t have to be a pain. The most important thing to do to make compliance work well is to use technology.
Using Xero to Easily Handle GST
Cloud-based accounting software like Xero can do a lot of the work for you when it comes to filing your GST:
- Automated Tracking: Xero keeps track of your GST on sales and purchases in real time.
- Accurate Reports: You can make your GST return report with just one click by getting data straight from your coded transactions.
- Digital Record Keeping: The platform can keep track of all invoices and receipts, which makes it easy for IRAS to see where the money is going.
Bookkeeping Best Practices for GST
When you have strong foundations, it’s easy to follow the rules. Follow these best practices for bookkeeping services:
- Code Transactions Correctly: Check to see that every transaction has the right GST code, like Exempt, Zero-Rated, or Standard-Rated.
- Reconcile Regularly: Use your accounting software to do monthly bank reconciliations to find and fix mistakes early.
- Keep Digital Copies: Use your software to scan and attach all the documents that support a transaction, such as invoices and receipts.
Conclusion: Picking the right GST for your small business
You need to make a very important choice about whether or not to register for GST in Singapore because it will change your prices, cash flow, and workload. This list makes it easy to see where you stand.
- You have 30 days to register if you’ve gone over the S$1 million limit.
- If you’re below the threshold, carefully weigh the pros and cons of voluntary registration, keeping in mind your customer base and cash flow needs.
Let Aura Partners Help You with Your GST Journey
It can be hard to grow your business in Singapore if you have to register for GST or are thinking about doing it voluntarily because of all the rules and paperwork.
Aura Partners (Singapore) Pte Ltd is the expert you can trust. Our specialized services help you understand and feel sure:
- GST Registration Service: We handle the entire application process with IRAS for our GST Registration Service. This makes sure that everything goes smoothly and without any mistakes.
- Ongoing GST Filing & Bookkeeping: Our team files your quarterly GST returns and keeps your books up to date with the best tools available, like Xero. This makes sure you follow all the rules and saves you time.
Don’t let the GST’s many rules and regulations get in your way. Get help from an expert right away.
Download our FREE “GST Registration Checklist” and speak to our specialists for a personalised consultation.

+65 6221 1768


