Does it support InvoiceNow?

Billed focuses on professional invoice creation and payment tracking. For InvoiceNow (Peppol) network transmission, you may need an IMDA-approved access point provider alongside Billed.

How does it handle GST at 9%?

The software calculates 9% GST on taxable supplies, zero-rates exports, and marks exempt categories. All invoices display your GST registration number and per-line tax breakdown.

Can I invoice government statutory boards?

Yes. Store Vendors@Gov details and follow agency-specific submission requirements. Government clients may require InvoiceNow for e-invoice delivery.

When can I use a simplified tax invoice in Singapore?

Simplified tax invoices are generally permitted for taxable supplies of S$1,000 or less (including GST) to a GST-registered customer, subject to IRAS conditions. Your invoice must still show your name, address, GST registration number, date, invoice number, total amount payable, and GST amount or statement that GST is included. For larger or more complex supplies, issue a full tax invoice with complete buyer details.

How do I show PayNow on invoices correctly?

Include your entity's UEN-linked PayNow proxy or a PayNow QR so payers can transfer instantly from their banking app. Add a unique payment reference or invoice number in the narration field so finance teams can match receipts. Pair PayNow with written bank details for clients who still use GIRO or FAST for batch payments.

What records must I keep for IRAS GST audits?

Keep tax invoices, simplified tax invoices where used, credit and debit notes, import permits, and accounting records for at least five years. Store them in order by tax period and tie them to your GST F5 figures. Digital copies are acceptable if they are complete, legible, and available on request.

How should I invoice overseas clients from Singapore?

Many exports of goods and certain international services are zero-rated if the place-of-supply and documentary rules are met. State zero percent GST on the invoice, keep evidence of export or overseas consumption, and retain contracts or shipping documents. If reverse charge applies to your customer, label the supply clearly and coordinate with their tax adviser.

Can I invoice in foreign currency for Singapore GST?

You can quote in USD or other currencies, but GST reporting is in SGD. Convert using an IRAS-approved exchange rate for the supply date and show how FX was applied if buyers need clarity. Ensure the tax invoice still allows the buyer to identify GST amounts or inclusive pricing per IRAS guidance.

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Singaporean invoicing software must handle 9% GST, display your GST registration number, and produce tax invoices that meet IRAS (Inland Revenue Authority of Singapore) requirements. Simplified tax invoices are allowed for supplies under S$1,000 when the rules apply, while full tax invoices need clear buyer and seller particulars, invoice date, description of goods or services, and a GST breakdown buyers can rely on for input tax claims. Zero-rated exports, exempt supplies, and reverse-charge scenarios should be labeled consistently so your GST F5 return reconciles cleanly each quarter.

InvoiceNow—Singapore’s Peppol-based e-invoicing network promoted by IMDA and IRAS—is increasingly part of how large buyers and government-related entities expect to receive bills. Even if you issue PDFs today, keep supplier and buyer data structured so you can adopt an access point or ERP handoff without re-keying. Align invoice numbering, credit notes, and dates with your accounting period to avoid timing mismatches on returns.

PayNow (UEN or QR) is now a default expectation for fast settlement alongside GIRO and FAST bank transfers. Put payment references, PO numbers, and UEN on every invoice to cut AP queries. Retain tax invoices, debit and credit notes, and supporting import documents for at least five years as IRAS expects, including after GST deregistration where applicable. Practical tip: reconcile PayNow receipts to invoice numbers weekly so year-end and audit trails stay painless.

Regional headquarters and shared-service centers often require cost-center or project codes on PDFs—mirror those in line descriptions or memo fields even before InvoiceNow goes live. If your business is partially exempt from GST, keep standard-rated revenue clearly tagged so your accountant can support input-tax apportionment schedules IRAS may review.

Compliance & invoicing expectations in Singapore

Local rules change over time; use these themes as a checklist and confirm details with a qualified adviser for your situation.

Tax Compliance

Calculate 9% GST on taxable supplies. Display GST registration number. Support zero-rated exports and exempt supply categories. Handle simplified tax invoices for amounts under S$1,000.

Currency & Payments

Invoice in SGD with PayNow UEN, GIRO, and FAST bank details. Convert foreign currency to SGD for GST reporting using approved exchange rates.

E-Invoicing Rules

InvoiceNow (Peppol) is promoted by IMDA and IRAS with phased adoption for GST-registered businesses. Newly registered GST businesses may face InvoiceNow requirements.

Record Keeping

Retain GST records for at least five years per IRAS requirements, even after deregistration. Include tax invoices, credit notes, and import permits.

Practical invoicing tools for businesses billing from or into Singapore.

How Billed supports Singapore invoicing

IRAS-compliant tax invoices

Generate invoices with GST registration number, 9% GST breakdown, and all IRAS-required fields. Simplified format auto-applies for supplies under S$1,000.

How to choose invoicing software for Singapore

Use this checklist when evaluating any invoicing tool for Singapore-based businesses.

Local tax support

Can it handle Singapore-specific tax rules (rates, exemptions, filing formats)?

Currency & language

Does it support the local currency and languages used in Singapore?

Compliance ready

Does it generate invoices that meet local legal requirements for tax credits and audits?

Payment integrations

Does it connect with payment methods popular in Singapore?

Scalability

Can it grow with your business — recurring billing, multi-client, team access?

Affordability

Does it offer a free tier or trial so you can evaluate before committing?

Feature	Billed	Generic tools
Singapore tax lines	Configurable	Varies
Local currency	Yes	Usually
Free plan	Yes	Sometimes
Recurring invoices	Included	Paid plans
Payment tracking	Built-in	Limited

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Frequently Asked Questions

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