Accurate quarterly GST returns, registration support, and e-invoicing readiness — so a GST-registered business stays clean with IRAS and never scrambles at the filing deadline.
GST is one of those obligations that looks simple from the outside and turns out to have a lot of edges. Once a business is registered, every sale and purchase carries a tax treatment, every quarter brings a return, and every figure in that return has to reconcile back to the books. When the coding drifts during the period, the filing becomes a guessing exercise — and GST is precisely the area IRAS examines most closely.
Our GST filing service keeps that whole cycle in order. We check whether and when you need to register, set up correct GST coding in your accounting system, prepare and submit each quarterly GST F5 return on time, and keep you ready for the move to InvoiceNow e-invoicing. The standard GST rate in Singapore is 9%, and the work is in applying it correctly across every transaction, not just on the headline number.
This service suits a range of situations where GST is becoming real work rather than an afterthought:
Most GST problems are not exotic. They build up quietly through the period and only surface when a return is being prepared or when IRAS reviews it. The recurring ones we see and fix:
Clean, consistent coding during the quarter is what makes the return at the end of it accurate. We keep that discipline so the filing is a confirmation, not a reconstruction.
Onboarding is light. To take on your GST filing we typically need:
Where you are already on Xero, we work directly in your file rather than moving your books onto a closed system.
The engagement is built to be predictable. The steps are straightforward:
GST filing also sits naturally inside a broader accounting and tax engagement, which includes GST alongside your monthly books and annual corporate tax — useful if you would rather have one team handle the whole compliance calendar.
Registration becomes compulsory once your taxable turnover exceeds S$1 million over the past four quarters, or when you reasonably expect it to exceed S$1 million in the next 12 months. Once you cross either test you must register with IRAS within the prescribed window. We monitor your rolling turnover so you register on time and avoid late-registration penalties and back-dated liability.
You can register voluntarily before reaching the S$1 million threshold. It can make sense when most of your customers are themselves GST-registered, or when you incur significant GST on purchases that you would like to claim back as input tax. The trade-off is that you take on quarterly filing obligations and must stay registered for a minimum period. We help you weigh the cash-flow and administrative impact before you decide.
Most GST-registered businesses file the GST F5 return quarterly, covering a three-month accounting period, with payment of any net GST due to IRAS shortly after the period ends. Some businesses are placed on a monthly cycle. We prepare and submit each return on schedule and reconcile it back to your accounts so the numbers tie out.
Frequent errors include claiming input tax on blocked or non-business expenses, applying the wrong GST treatment to overseas or zero-rated supplies, charging GST before the registration date, and mismatches between the return and the underlying accounting records. These are exactly the items IRAS looks at on review. Clean, consistent GST coding through the period prevents most of them.
InvoiceNow is Singapore's national e-invoicing network, based on the Peppol framework and overseen by IMDA, and IRAS is phasing in a requirement for GST-registered businesses to transmit invoice data through it. The exact start dates depend on your circumstances. We help you understand whether and when it applies to you and get your invoicing set up so the transition is smooth.
Yes. We prepare and submit your GST registration with IRAS, advise on the effective date, set up correct GST coding in your accounting system, and take over the recurring quarterly returns from there. If you are already registered, we can review your existing setup and pick up the filings going forward.
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