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Singapore GST Invoice Guide (UEN + SGD PDF)

· · Reviewed by NestInvoice editorial team

GST-registered businesses in Singapore typically issue tax invoices that show who is charging GST, at what rate, and what the customer pays in SGD. Generator defaults often start near 9% — confirm current IRAS rules. UEN / GST registration details belong in the supplier block where required. This PDF helper is not an IRAS filing channel. Do not copy Malaysia SST or Australia GST rates onto SG invoices — use the hub /sg.

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Singapore tax invoice fields

Supplier name, GST registration / UEN details, invoice date, description of supplies, net, GST amount, and total payable — plus the usual number and customer fields from what to include.

Keep net, GST, and gross readable so AP teams can post the bill without guessing.

Rates and registration

Do not leave 9% on a zero-rated or exempt supply. If you are not GST-registered, clear Taxes.

Regional structure only: Australia GST, Malaysia SST, India GST.

PDF vs IRAS channels

A clear PDF helps the client pay. It does not replace IRAS reporting or any mandated e-invoice path. When the buyer needs an official structured document, treat this tool as a draft or annex.

Using the free generator

Open the Singapore GST generator or /sg. Add UEN or GST number under From, set Taxes, download PDF.

Steps: how to create an invoice. Overview: VAT on invoices.

  • Unique invoice number — never reuse
  • Edit or remove GST if you are not registered
  • Keep PDF copies with your records

Disclaimer

Not tax advice. Confirm IRAS requirements for your registration and supply type with official guidance or an adviser.

Related guides

Keep reading — these pages link the next steps in a normal billing workflow.

Try it free

Open the generator for this topic, edit in your browser, and download PDF — no account required. Drafts stay on your device.

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Frequently asked questions

Is GST always 9%?

9% is a common standard rate used as a generator default. Verify current IRAS rules for your goods or services.

What if I am not GST-registered?

Do not add GST lines. Use a no-GST layout or remove tax in the editor.

Same as Malaysia SST or Australia GST?

No. Singapore has its own IRAS rules and SGD. Use [/sg](/sg), not only an MY or AU generator.

Where do I put UEN / GST number?

Under From in the tax ID field. Add the client ID when required.

Quote or invoice?

A quote is a proposal. The tax invoice is the payment document — keep them separate in your records.