How to create an invoice in Singapore
A practical checklist for Singapore: required fields, GST wording, SGD amounts, numbering and payment terms.
Businesses in Singapore issue invoices that follow a recognisable format. This guide lists what a document should include, the tax terminology customers expect, and the conventions that help an invoice get approved and paid quickly.
What a Singapore invoice usually includes
- Business name and UEN
- Customer details for B2B
- Invoice number and date
- Description and amount
- GST breakdown and total in SGD
Field by field
This generator preconfigures Singapore conventions: the SGD currency, the GST label, DD/MM/YYYY dates and A4 paper size. You enter your details and line items; it calculates subtotal, discounts, tax and the grand total, then renders a print-ready PDF entirely in your browser.
- Postal code: Postal code
- Tax rates: GST — GST number
- Currency: SGD ($)
- Invoice date: DD/MM/YYYY
- Paper size: A4
Invoice numbering
Default numbering pattern: INV-2026-0042. Sequential numbering with the UEN visible is standard practice.
Tax terminology: GST
Invoices are labelled with the terminology Singapore businesses expect. Presets are provided as a starting point and are not tax advice.
- Standard rate: 9%
- Zero rate: 0%
Singapore consumer prices normally include GST at 9%.
Payment practice
Common payment terms used in Singapore: On receipt, 14 days, 30 days, 60 days. Always state a due date, and ask customers to quote the invoice number as the payment reference.
Invoicing notes for Singapore
UEN identifies the business
Your Unique Entity Number belongs on the invoice so corporate customers can verify the supplier.
Output tax detail
GST-registered sellers must show the GST amount charged per rate for the customer to claim it.
Regional invoices
Cross-border supplies are often zero-rated — state clearly when GST is not charged and why.
Frequently asked questions
Is this invoice generator free for businesses in Singapore?
Yes — free, unlimited and without an account. SGD formatting, GST labels and DD/MM/YYYY dates are preconfigured for Singapore.
Does the PDF use the right paper size?
Yes, A4 is preselected for Singapore, and you can switch between A4 and Letter at any time.
Are the tax presets accurate?
Presets are informational starting points. Tax obligations depend on your situation — verify current rates with a qualified professional before issuing a tax invoice.
Can I save and reuse an invoice?
Yes. Save a draft in this browser, duplicate it next month, or export and re-import the invoice as JSON.
Is my customer's data uploaded?
No. Everything is calculated and rendered in your browser; nothing is sent to a server to build the PDF.
Designed for common invoicing practices in Singapore. Requirements may vary by business, transaction type and jurisdiction. Please verify local requirements with a qualified professional.