Singapore compliance guide
Singapore Compliance Workflows in Cloud Accounting
GST returns, InvoiceNow, XBRL filing through BizFile+ and IRAS submission readiness — what your accounting software has to support, and where the work actually lands.
The year at a glance
The Singapore compliance calendar
A Singapore company's year has a predictable rhythm. Quarterly GST returns are due one month after each accounting period. Estimated Chargeable Income filing follows soon after year-end. Corporate tax returns and financial statements come later, with XBRL filing through BizFile+ alongside. Annual return filing with ACRA sits in the same window.
Software that keeps records current makes each deadline routine. Software that does not turns every one of them into a project — and into a phone call to your accountant the week before the due date.
- Quarterly GST returns filed through the IRAS myTax Portal, due one month after each accounting period closes.
- After year-end Estimated Chargeable Income filing, based on figures that should already reconcile to your books.
- Filing season Corporate tax returns and financial statements, prepared alongside XBRL data for ACRA.
- Same window Annual return filing with ACRA through BizFile+, tied to the financial statements you just closed.
Indirect tax
GST registration and the reporting cycle
You must register for GST once taxable turnover exceeds S$1 million in a twelve-month period, or at the end of a calendar year if you expect to exceed it. Once registered, you file returns quarterly by default, though monthly filing is available.
Your software needs to track output tax on sales and input tax on purchases separately, handle zero-rated and exempt supplies, and produce a report that maps to the GST F5 fields. When that mapping is clean, a quarterly return is a review task. When it is not, someone rebuilds the return by hand from a spreadsheet every quarter.
What to check before you file
- Output tax and input tax reported as separate lines, never as one net figure.
- Zero-rated exports and exempt supplies classified at the transaction, not after the fact.
- A report layout you can trace back to individual invoices if IRAS asks questions later.
- GST treatment set in the chart of accounts, so new codes inherit it automatically.
What InvoiceNow changes for SMEs
InvoiceNow is Singapore's nationwide e-invoicing network, built on the Peppol framework. It lets businesses exchange invoices directly between accounting systems rather than by email and PDF. For senders, it reduces data entry and disputes over invoice details. For receivers, it means supplier invoices can flow into accounts payable automatically.
Readiness requires more than a compatible format. Your software needs an actual connection to the network, and someone on your side who decides what happens when a supplier invoice arrives unattended.
Where the work shifts
- Outbound invoices
- Issued from your accounting system into the network, so buyer-side keying stops at the other end.
- Inbound invoices
- Supplier invoices land in accounts payable instead of an inbox, ready for approval routing.
- The part people skip
- Enabling outbound only. Inbound stays manual and you keep the same data entry load you meant to remove.
Statutory reporting
XBRL filing through BizFile+
Most Singapore-incorporated companies file financial statements with ACRA in XBRL. The format is structured, machine-readable, and follows a taxonomy ACRA publishes. Small companies filing the simpler FSH framework have fewer data points to tag; larger ones file the full framework.
Your accounting software either prepares this data or leaves your filing agent to map it from reports. The second option is common and workable — it just moves the cost. Ask which framework applies to your company, then ask whether the tagged data can come out of the system you already use or whether someone rebuilds it from a trial balance each year.
Check vendor credibilityPreparing for IRAS filing
The IRAS myTax Portal is where GST returns and corporate tax filings are submitted, and the portal expects figures that reconcile to your books. Software contributes by keeping a clean audit trail, generating reports aligned with IRAS requirements, and letting you export the underlying data if IRAS asks questions later.
The filing itself stays with you or your tax agent. What software changes is how long it takes to answer the questions that come after — a single transaction queried six months later, a GST figure that has to be explained line by line.
Record keeping obligations
Singapore requires business records to be kept for five years from the end of the relevant year of assessment. That includes invoices, receipts, bank statements, and contracts.
Cloud accounting helps because records live in one searchable system rather than a filing cabinet. It also raises a question worth asking every vendor before you commit: how do you export everything if we switch platforms?
Where accountants fit in the workflow
Most SMEs do not file alone. Your accountant or tax agent reviews the numbers, prepares submissions, and signs off. The software choice affects them as much as you.
Ask your accountant which platforms they already work with, what report formats they prefer, and whether they charge extra for XBRL preparation. Their answer often settles the decision faster than any comparison table — and it tells you where the friction will land next quarter.
Common compliance mistakes
A few problems recur across companies of every size. None of them are dramatic on their own.
- Chart of accounts Set up without GST treatment in mind, so every return needs manual adjustment.
- Reconciliation timing Bank reconciliation left until quarter-end, making errors hard to trace back to the source.
- One-way e-invoicing InvoiceNow enabled for outbound only, leaving supplier invoices to be keyed in by hand.
- Currency handling Multi-currency transactions recorded at the wrong rate and only corrected at year-end.
Together these add days to every filing cycle. Fixing the chart of accounts takes an afternoon; living with it costs a little every quarter, forever.
Choosing software around compliance
Work backwards from your obligations. If you file GST quarterly, GST reporting quality comes first. If you trade business-to-business, InvoiceNow readiness is close behind. If you file XBRL, confirm the export format before you sign anything.
Then check support: who helps you configure this, and who answers when the first return looks wrong? Compliance fit beats feature breadth every time.
Ask us directly
If a compliance question is blocking a software decision, send it over. We work with Singapore SMEs and their accountants on exactly these workflows.
- Phone
- +65 6271 8509
- [email protected]
- Office
- 71 Robinson Road, #14-01, Singapore 068895
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- Monday to Friday, 9:00 AM – 6:00 PM (SGT)