IRAS Tax Filing Agent · ACRA Registered Filing Agent

GST Registration & Filing Without the Guesswork

Register for GST correctly the first time, then keep every quarterly return filed on time, bundled with the accounting and bookkeeping that makes it accurate.

GST Registration from S$80 U.P S$400

New customers only, terms apply

Acra
Xero
Invoice Now
SMEs
Inland
Isca

Do You Need to Register for GST?

Your Turnover Has Crossed or Is Approaching S$1M

Once your taxable turnover exceeds S$1 million in a 12-month period, or you can see it coming, especially if you deal in imports, exports, or high-value goods, registration becomes compulsory. Getting ahead of it avoids backdated penalties.

You’re Registering Voluntarily

Registering early to claim input tax credits still means filing every period, even below the S$1M threshold.

You’re Buying Property or Machinery

Making a major purchase, commercial property, equipment, or renovation? Voluntary registration lets you claim back the GST paid as input tax, often a meaningful saving on a big-ticket purchase.

Transparent Pricing

Registration and Filing, Priced Separately

A one-time registration fee, and an ongoing filing plan that bundles your books with your GST returns.

GST Registration

Billed monthly, a good fit for active, growing businesses.

Promotional Price

S$80 S$400

One-time fee, new customers only

Eligibility checked before you pay
  • Eligibility assessment (compulsory or voluntary)
  • Preparation of IRAS application documents
  • Full submission and follow-up with IRAS
  • Guidance on your assigned filing cycle
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MOST POPULAR

Quarterly GST Filing & Compliance

Bundled with monthly accounting and bookkeeping.

From

S$500

Per month, onwards Includes accounting, bookkeeping & GST filing
  • Monthly accounting & bookkeeping
  • Input and output tax reviewed for accuracy
  • Quarterly GST F5 preparation & IRAS submission
  • Nil returns filed on schedule, never missed
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GST filing is bundled with accounting and bookkeeping, not sold as a standalone add-on because accurate filing depends on accurate books.

Why It’s Worth Doing Right

The Cost of Missing a Filing

IRAS doesn’t send reminders. One missed nil return costs more than a full quarter of staying compliant.

S$200

Per month, per missed or late return

From S$500

Per month, books and GST filing handled, penalty-free

Know Your Obligations

GST Rules Every Registered Business Should Know

  • Filing Deadline GST F5 is due by the last day of the month.
  • Nil Returns Are Mandatory Nil returns must still be filed. Late filings incur a S$200 penalty.
  • Current GST Rate GST is charged at 9% on standard-rated supplies.
  • Correcting a Mistake Small errors can be corrected in your next F5;
Is This You?

Why SMEs Come to Us for GST

Newly Crossed S$1M Turnover

Registration becomes compulsory within a set window once you cross the threshold, we handle the paperwork before the deadline pressure builds.

Filing Yourself Is Getting Risky

One misclassified input tax claim or one missed nil return is where the penalties start, we review every return before IRAS sees it.

Switching From Another Provider

We collect your past filings, confirm your next deadline, and take over your filing cycle, most handovers done within a week.

Why Think SME

The Same Firm for Compliance, Digital, and Financing

IRAS Tax Filing Agent

Authorised to prepare and submit your GST and tax filings directly with IRAS.

ACRA Registered Filing Agent

The same firm that can also handle your incorporation, secretary, and compliance filings.

Xero Certified Advisor

Your books and your GST filing run off the same accurate, real-time data.

EDGE Grant Eligible

As an IMDA Pre-Approved Vendor, your Xero setup may qualify for up to 50% EDGE grant support.

Financing When You Need It

Clean books make loan and financing applications smoother, through the same team, via our 60+ lender network.

Our Clients

Read Our Reviews

It has been a seamless, helpful and quick service from Think SME who helped opening multiple companies. Nick and Yee Lin are super helpful, courteous, customer friendly and quiet patient to answer all my questions & clarify all doubts. I highly recommend Think SME and i have already referred my other business contacts to work with them for their company incorporation as well as managing their corp secretary and annual filing work. Great Job Nick and Yee. Thanks for all your help

Registered Address & Accounting
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Sandy Elan 2 months ago · via Google

Think SME is a very professional company. Nick is very detailed and patience. He spend time to explain all the legal procedures a Company needs to adhere. During the whole meetup, he never rush through any grounds. Highly recommended if you are a new startup. Even not a new startup, you should consider Think SME.

Business Loan & Property Cashout
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Choon Seng Seow 7 months ago · via Google

We've been working with Think SME for our company's accounting and tax matters, and the experience has been excellent from day one. A special mention to Nick, who has been incredibly responsive, knowledgeable, and patient throughout the process. Whether it's tax filing, compliance matters, or answering our day-to-day accounting questions, he always provides clear and practical advice that gives us confidence that everything is being handled properly.

Company Incorporation
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Joel Ang 3 months ago · via Google

We were looking at refinancing of our loan and gotten the consulting services of Mr Thomas Wee from ThinkSME. Thomas is very experienced and knowledgeable and he helps us to get the best deal possible and guides us through the entire process smoothly. Thanks Thomas for the good job

Business Loan & Property Cashout
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Ho Doris 7 months ago · via Google

Evelyn is very helpful and help me with my company matters promptly. Highly recommend Think SME to all SMEs looking for accounting and financial advisory.

GST Filing & EDGE Xero
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Cynthia Tan 5 months ago · via Google
Common Questions

Questions SMEs Ask Us First

How much does it cost to set up a company in Singapore?
Think SME's all-in company setup package starts from S$888, which covers the ACRA government registration fee, company constitution preparation, registered office address, and first-year corporate secretarial service. The ACRA government fee alone is S$315, our professional package bundles everything a new Singapore company needs from day one. Contact us for a full transparent quote tailored to your business structure.
When must my Singapore company register for GST?
You must register for GST within 30 days once your taxable turnover goes over S$1 million: either at the end of a calendar year (retrospective basis) or when you expect it to exceed S$1 million in the next 12 months (prospective basis). Below that threshold, registration is voluntary, and if you register voluntarily you must stay registered for at least two years. Once registered, you charge GST at 9% and file returns with IRAS, usually every quarter. We can check whether you need to register and handle the application and filings for you.
How fast can Think SME incorporate my Singapore company?
Once we have your documents and identity checks completed, most companies are incorporated within 24 hours, because the name is approved instantly and ACRA registers the company the same day. It takes longer if your proposed name contains words that ACRA refers to another authority (for example “bank”, “law” or “school”), or if a foreign founder still needs a locally resident director, which we can provide. Everything is done online, so you don’t need to be in Singapore.
What is the corporate tax rate in Singapore?
Singapore charges a flat 17% corporate income tax on chargeable income, and exemptions bring the effective rate well below that for most SMEs. A new company can claim the Start-Up Tax Exemption for its first three Years of Assessment (75% of the first S$100,000 and 50% of the next S$100,000 exempt). Other companies get the Partial Tax Exemption (75% of the first S$10,000 and 50% of the next S$190,000). Corporate Income Tax rebates announced in the Budget can reduce the bill further in some years. Try our tax calculator for an estimate.
My bank rejected my SME loan application, what can I do?
A rejection from one bank doesn’t mean you can’t get financing. Every lender has its own criteria for years in operation, revenue, profitability, industry and credit history, so a profile one bank turns down can suit another. Our ex-banker team reviews your financials, explains why you were declined and matches you against 60+ banks and alternative lenders, including government-assisted Enterprise Financing Scheme loans. The assessment is free and doesn’t commit you to anything.
What makes Think SME different from competitors?
One team covers your whole journey: incorporation, corporate secretary, registered address, accounting, GST and corporate tax, plus business financing and grants. We’re an ACRA Registered Filing Agent, an IMDA pre-approved vendor and Xero Certified Advisors, and our financing team of former bankers compares 60+ lenders for you. Pricing is transparent and agreed upfront, and our clients rate us 4.9 on Google.

Ready to file with confidence?

Computation and filing bundled, from S$850 per Year of Assessment.