Understanding GST Registration in Singapore

A comprehensive guide simplifying the critical aspects and criteria of GST Registration in Singapore.

Updated on
Feb 26, 2024
min read
Fees and Taxes
Jump to sections
Share this article

Step-by-step Guide to Understanding GST Registration in Singapore

Recognizing Mandatory GST Registration

The primary requirement for GST registration in Singapore lies in the taxable turnover. A business must register if its taxable turnover surpasses S$1 million at the end of the calendar year or is predicted to exceed S$1 million in the subsequent 12 months. This means that if your business's sales, excluding GST, reach or are expected to reach S$1 million, you are obligated to register for GST.

Voluntary GST Registration

Businesses that don't mandatorily meet the turnover threshold can willingly opt for GST registration. Voluntary registration can be advantageous in certain situations. For example, if your business primarily deals with other GST-registered businesses, registering for GST allows you to claim input tax credits and recover the GST paid on your business expenses.

Reverse Charge and Overseas Vendor Registration

In specific scenarios, companies might need to sign up for the reverse charge regime or the overseas vendor registration. This rule applies when they avail services from international suppliers, import low-value goods, and don’t qualify for full input tax credit. If your business falls into these categories, it is crucial to understand the requirements and obligations associated with these registration schemes.

Late Registration Implications

Non-compliance to timely GST registration can lead to penalties. Companies failing to register on time will see their registration date retroactively revised to when they were obligated to apply. They'll then be required to pay GST on all previous sales from that date, regardless of whether it was collected from customers or not. Penalties can reach a whopping $10,000, plus an additional 10% penalty of the due GST. Therefore, it is crucial to ensure that you register for GST in a timely manner to avoid these penalties.

Calculating Business Turnover:

GST implications and registration requirements vary depending on the business type, as each has a different method of computing taxable turnover:

For Sole-proprietorship: Combine the turnover of all sole-proprietorship businesses and any income from trades or professions. This means that if you have multiple sole-proprietorship businesses or additional income from trades or professions, you need to aggregate the turnover from all these sources to determine if you meet the GST registration threshold.

For Partnership: Merge the turnover of all partnership businesses with the same partner composition. If you are a partner in multiple partnerships, you need to combine the turnover from all these partnerships to assess your eligibility for GST registration.

For Company: Calculate the turnover of the company. If the company owns sole-proprietorship businesses, combine the company and its sole-proprietorship businesses' turnover. If your company has multiple sources of income or owns sole-proprietorship businesses, you need to aggregate the turnover from all these sources to determine if your company meets the GST registration threshold.


Ensuring a thorough understanding of GST registration requirements and abiding by them is paramount for every company operating in Singapore. A timely and correct GST registration not only saves you from heavy penalties but also boosts your business's integrity, indirectly fostering trust with your customers. So, navigate with this guide, ace your GST registration, and pave the way to business success in Singapore. Remember to consult with a professional tax advisor or the Inland Revenue Authority of Singapore (IRAS) for personalized advice and guidance tailored to your specific business circumstances.

Launch Your Business with Confidence

We're here for you every step of the journey. From company formation to compliance, we've got your back. Let’s get it right, from the start.

Frequently Asked Questions

Have other questions? Contact us now

No items found.
Try the Stellar Company Assistant Now
Click here
Stellar Company Assistant (AI)
Stellar helps business owner to manage corporate services such as incorporation, tax filing and more.