Free Invoice Generator – IRAS Compliant Singapore & General

Singapore Tax Invoice (IRAS-compliant): For GST-registered businesses. A full tax invoice is required when your customer is GST-registered and the transaction exceeds S$1,000. For S$1,000 and below, a simplified tax invoice is permitted — but this full template is always valid. For non-GST-registered businesses, use the General Invoice (do not label it "Tax Invoice").

Your Business SG Required

Logo (optional)

📎 Click to upload logo · PNG, JPG · Max 1MB

Logo appears in your PDF. Re-upload each session — not stored on servers.

Business Name *

GST Reg No. SG Required

Phone

Address

Bill To

Client Name *

Client Email

Client Address

Invoice Details SG Required

Invoice Date *

Due Date

Currency

Payment Terms

Line Items

Description	Qty	Unit Price	Amount

Tax & Totals

Apply GST 9% (Singapore standard rate)

Notes & Payment Info

Payment Instructions / Bank Details

Notes / Terms

Preview SG Tax Invoice

Invoice No.

Singapore IRAS Requirements

What makes a valid tax invoice?

For GST-registered businesses in Singapore, IRAS requires the following on every tax invoice.

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Supplier details

Your business name, address, and GST registration number must appear on every tax invoice.

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Sequential numbering

Invoice numbers must be unique and sequential (e.g. INV-0001, INV-0002). Gaps must be accounted for.

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Invoice date

The date of issue is required. This determines your GST reporting period.

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GST amount shown

The GST amount must be stated separately — not just included in the total. Current rate: 9%.

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Customer details

Required when total exceeds S$1,000 (full tax invoice). For S$1,000 and below, a simplified tax invoice with fewer fields is permitted — but a full invoice is always acceptable.

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"Tax Invoice" label

The document must be clearly labelled "Tax Invoice" — not just "Invoice" — to be IRAS-compliant.

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Simplified Tax Invoice

For transactions S$1,000 and below (incl. GST), a simplified tax invoice is permitted — fewer details required. This full template is still valid and accepted for all amounts.

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GST InvoiceNow (Future)

From April 2028–2031, IRAS will require GST-registered businesses to transmit invoice data via the InvoiceNow network. Not required now, but worth planning ahead.

Professional invoices, instantly

What makes a valid tax invoice?