Singapore GST Invoices

Free Invoice Generator Singapore

Create professional GST-compliant invoices for your Singapore business. No signup required.

Invoice generator form

Your business Business name Tax ID / VAT Email Phone Address line 1 Address line 2

City / Suburb State / Region Postal code

Country

Bill to (client) Business name Tax ID / VAT Email Phone Address line 1 Address line 2

City / Suburb State / Region Postal code

Country

Invoice details Invoice number PO number Issue date Due date Currency

Line items

Description	Qty	Unit price	Tax %

Totals Subtotal Discount Tax total Total amount due

Payment details Bank name Account name Routing / Sort code Account number Payment reference

Notes Notes to client

Open interactive editor

Tax

GST at 9%

Currency

SGD ($)

Business registration

UEN

Country

Singapore

Why Use Our Free Singapore Invoice Generator?

9% GST Ready

Automatically calculate and display Singapore's 9% GST — required once your taxable turnover exceeds S$1 million.

UEN Compatible

Add your Unique Entity Number (UEN) to every invoice for IRAS compliance and professional credibility.

SGD Currency Support

Invoices display amounts in Singapore Dollars with correct formatting for local clients.

Invoice requirements in Singapore

What a compliant invoice needs in Singapore:

✓ If GST-registered, display the words 'Tax Invoice' and show 9% GST separately
✓ Include your UEN (Unique Entity Number) on business invoices
✓ GST registration is compulsory once taxable turnover exceeds S$1 million
✓ Show the GST registration number when you are GST-registered

Invoicing tips for Singapore

✓ Keep records for at least 5 years as required by IRAS
✓ Bank transfer (PayNow/FAST) is the most common B2B payment method in Singapore
✓ Show both GST-exclusive and GST-inclusive totals for clarity
✓ Use clear, itemised descriptions for each service or product

Common mistakes to avoid

✓ Charging GST while not GST-registered
✓ Using the old 8% rate instead of the current 9% GST
✓ Omitting the UEN or GST registration number
✓ Not labelling the document a 'Tax Invoice' when GST is charged

Singapore invoicing FAQ

Do I need to charge GST on invoices in Singapore?

Only if you are GST-registered. Registration is compulsory once your taxable turnover exceeds S$1 million in a 12-month period; below that you can register voluntarily. GST-registered businesses must issue tax invoices showing 9% GST.

What must a Singapore tax invoice include?

A valid tax invoice should show the words 'Tax Invoice', your business name and UEN, your GST registration number, the invoice date and number, the client's details, an itemised description, the GST amount at 9%, and the total payable.

What is a UEN?

The Unique Entity Number (UEN) is the standard identification number for entities registered in Singapore (with ACRA). Including it on invoices helps clients verify your business and supports IRAS compliance.

Free Invoice Generator Singapore

Invoice generator form

Why Use Our Free Singapore Invoice Generator?

9% GST Ready

UEN Compatible

SGD Currency Support

Invoice requirements in Singapore

Invoicing tips for Singapore

Common mistakes to avoid

Singapore invoicing FAQ

Do I need to charge GST on invoices in Singapore?

What must a Singapore tax invoice include?

What is a UEN?

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