Singapore Invoice Template

Singapore's straightforward 9% GST system makes invoicing simpler than many other jurisdictions, but the city-state's business culture is precise about what must appear on every commercial document. Eonebill's Singapore Invoice Template is built for the Lion City's requirements: UEN numbers prominently displayed, IRAS-compliant GST calculations, SGD currency formatting, and all fields that Singapore businesses and their clients expect to see. Whether you run a fintech startup in the CBD, a logistics company in Jurong, or a freelance design practice in Tiong Bahru, this template produces clean, professional, IRAS-compliant invoices in seconds.

What Makes a Singapore Invoice Different

Singapore occupies a unique position in Southeast Asia's business landscape. It is one of the most trade-friendly jurisdictions in the world, with a GST system that is deliberately simple compared to India's multi-tier structure or France's e-invoicing mandates. The current 9% GST rate applies uniformly to most goods and services, with exemptions for financial services, residential property leases, and investment precious metals. This simplicity means Singapore invoices can focus more on clarity and professionalism than on navigating complex tax calculations.

The most distinctive identifier on a Singapore invoice is the UEN (Unique Entity Number). Issued by the Government of Singapore, the UEN replaced the old Company Registration Number (Co. Reg. No.) format for official business communications. Every invoice, receipt, and official document should carry the UEN. For foreign companies operating branches in Singapore, a separate Singapore branch UEN is issued, which is distinct from the overseas parent company's registration number.

Singapore also operates a strict invoice-based record-keeping system under IRAS (Inland Revenue Authority of Singapore) regulations. GST-registered businesses must retain all tax invoices and receipts for at least five years. A compliant invoice from a GST-registered supplier must clearly show the GST registration number (which begins with M2- followed by digits), the word "GST" or "Goods and Services Tax," the GST amount charged, and the rate applied. Customers who are also GST-registered can use this information to claim input tax credits.

Key Requirements for Singapore Invoices

Legal Mandatory Fields

A GST-compliant Singapore invoice must include: the words "Tax Invoice" or "Invoice" prominently; supplier's business name and UEN; supplier's GST registration number (M2-XXXXXXX); supplier's registered address; date of issue (invoice date); a unique invoice number; customer's business name and address; description of goods or services supplied; quantity and unit price; total amount excluding GST; GST rate applied (currently 9%); GST amount; total amount payable including GST; and payment terms. For GST-exempt supplies, the invoice must clearly state "Exempt Supply" or "Zero-rated Supply" as applicable.

Tax Identification Numbers

Singapore uses two primary identifiers. The UEN (Unique Entity Number) is the mandatory business identifier for all entities registered in Singapore: local companies show as 10 characters (e.g., 202012345A), and foreign companies show with an S or T prefix. The GST Registration Number is a 12-character identifier issued by IRAS upon GST registration, formatted as M2- followed by 8 digits (e.g., M2-12345678). Both should appear on business documents. Sole proprietors and partnerships use their UEN from ACRA registration.

Currency and Number Formatting

Singapore invoices use Singapore Dollars (SGD, S$). The S$ symbol or the written form "SGD" appears before the amount without a space: S$1,250.00 or SGD 1,250.00. The standard international format with commas for thousands and a decimal point applies (e.g., S$125,000.00). Eonebill's Singapore template automatically formats all amounts correctly, and for international clients, supports dual-currency display showing USD equivalents alongside SGD.

Sample Singapore Invoice with Localised Data

Vertex Digital Solutions Pte. Ltd., a digital marketing agency incorporated in Singapore, UEN 202012345A, GST Registration M2-87654321, with registered office at 8 Marina View, Asia Square Tower 1, #12-01, Singapore 018960, invoices Apex Trading Co. Pte. Ltd., UEN 201923456B, 3 Church Street, Samsung Hub, #20-01, Singapore 049317, for digital marketing services. Invoice number VDS-2026-0414, dated 14 April 2026. Line items: "Digital Marketing Strategy & Campaign Management — April 2026" at S$5,500.00, "Website UX Review & Optimisation Report" at S$1,800.00, and "Social Media Content Creation (8 posts)" at S$2,200.00. Subtotal: S$9,500.00. GST at 9% adds S$855.00. Total amount payable: S$10,355.00. Payment terms: Net30. PayNow to UEN 202012345A or bank transfer to DBS Bank, Account 1234567890. Note: This is a GST-inclusive tax invoice. GST Registration: M2-87654321.

How to Create a Singapore Invoice with Eonebill

Choose Eonebill's Singapore Invoice Template. Enter your company name and UEN — this is the most distinctly Singaporean field and should be accurate for IRAS record-keeping. Add your GST registration number (M2- format) if you are GST-registered. Include your client's UEN and business details. Add your line items with clear descriptions. Select whether each item is standard-rated (9% GST), zero-rated, or exempt — the template calculates the GST automatically. Set your payment terms (Net30 is standard), add your PayNow details or bank account for GIRO transfers, and download your PDF. Eonebill's Singapore template is GST-compliant with the current 9% rate and automatically flags when the rate changes to 10%.

Related Templates

• Consulting Invoice Template — Singapore consulting and professional services firms
• Freelance Invoice Template — Singapore freelancers and independent contractors
• Marketing Invoice Template — Digital marketing agencies and creative studios in Singapore
• Net30 Invoice Template — Standard B2B payment terms for Singapore businesses