Invoice generator (Singapore)
Create professional Singapore invoices for free with TopwebSuite. Bill your customers in dollars (SGD), apply GST where it's required, include your GST registration number and company branding, and export a clean, print-ready PDF in seconds — on the web or the Android app.
Whether you invoice local clients or export overseas, every invoice is itemised, calculates totals automatically, and looks professional enough to help you get paid faster. You can reuse customers and items, so the next Singapore invoice takes moments.
What a Singapore invoice should include
- A unique invoice number and the issue date
- Your business name, address and GST registration number
- Your customer's name and contact details
- An itemised list of goods or services with quantities and unit prices in dollars (SGD)
- GST shown as a separate line where applicable
- The subtotal, any discount, and the total amount due
- Payment terms, due date and accepted payment methods
How to create a invoice for Singapore
- Enter your business details and your GST registration number.
- Add your customer and a unique invoice number.
- List your items with prices in dollars (SGD), then apply GST or a discount if needed.
- Preview the invoice, then download the PDF or share it directly with your client.
Tax and registration in Singapore
GST in Singapore is administered by the Inland Revenue Authority of Singapore (IRAS), and it is worth confirming your current obligations there rather than relying on a figure stored in any software — rates and registration thresholds change.
If you are registered, show GST as a separate line on every invoice and include your GST registration number. If you are not registered, do not add GST — collecting tax you cannot remit is a compliance problem rather than a formatting choice.
Businesses trading in Singapore are normally incorporated or registered through the Accounting and Corporate Regulatory Authority (ACRA). Quoting your registration number alongside your GST registration number tends to speed up approval with corporate and government customers, who often will not process a invoice without both.
Frequently asked questions
What currency should I use on an invoice in Singapore?
Invoices in Singapore are normally issued in dollars (SGD). TopwebSuite supports SGD and 100+ other currencies, so you can bill local or international clients without switching tools.
Do I need to show GST on a Singapore invoice?
If you are registered for GST in Singapore, show it as a separate line and include your GST registration number. TopwebSuite lets you add GST and your GST registration number to every invoice in a couple of clicks.
Can I create a Singapore invoice for free?
Yes. The TopwebSuite invoice generator is free to use — create, download and send SGD invoices on the web or the Android app, with no card required to get started.
Who administers GST in Singapore?
GST in Singapore is administered by the Inland Revenue Authority of Singapore (IRAS). Rates and registration thresholds change, so confirm your current position with them or your accountant rather than relying on a software default.
Do I need a registration number on a Singapore invoice?
Your GST registration number is expected if you are registered for GST. Including your company registration number from the Accounting and Corporate Regulatory Authority (ACRA) as well tends to speed up processing with corporate and government customers, who frequently require both before paying.