Singapore Invoice Creator — With GST at 9% Built In
Create professional invoices for Singapore. Pre-configured with SGD, GST at 9%, and the fields Singapore tax authorities expect — no signup required.
How to Create an Invoice for Singapore
Our Singapore invoice creator is pre-configured with SGD currency, 9% GST, and the fields IRAS (Inland Revenue Authority of Singapore) requires. Enter your UEN, GST registration number, business details, and line items — the tool generates a tax invoice suitable for both B2B and B2C transactions. Suitable for sole proprietors, partnerships, limited companies, and Singapore-registered branches of foreign entities.
What to Include on a Singapore Invoice
A Singapore tax invoice must include 'Tax invoice' wording prominently, your business name, address, UEN, and GST registration number, the customer's name and address (for invoices over S$1,000), the date of issue, a unique invoice number, a description of goods or services, the GST-exclusive amount, the GST rate and amount (or a statement that GST is included), and the total payable. For invoices with mixed rates, break out each rate clearly.
Tips for Singapore Invoicing
Register for GST as soon as your turnover crosses S$1 million in any 12-month period (rolling assessment, not calendar-year). Voluntary registration is allowed and worth considering if your customers are primarily GST-registered businesses. Keep records for at least 5 years per the GST Act. Use IRAS's GST-registered business search to verify your B2B customers' GST status before applying reverse-charge rules. Consider e-invoicing via the Peppol network — IRAS actively supports it.
Quick definitions
- GST
- Singapore's 9% consumption tax (raised from 8% in January 2024). Mandatory registration once turnover crosses S$1 million in any 12-month period.
- UEN
- Unique Entity Number — the 9–10 character identifier assigned by ACRA to every Singapore business. Required on invoices alongside the GST registration number where applicable.
- Tax invoice
- IRAS term for an invoice that includes GST. Must include 'Tax invoice' wording, supplier's GST number, and prescribed fields. Required for input-tax claims by the buyer.
- Reverse-charge GST
- For imported services purchased by Singapore GST-registered businesses for non-fully-taxable activities, the buyer self-accounts for GST. Applies to financial services, real estate, etc.
Frequently Asked Questions
Do I need to charge GST on Singapore invoices?
You must charge 9% GST if you're registered for GST (mandatory once turnover crosses S$1 million in any 12-month period, or expected to in the next 12 months). Some supplies are zero-rated (exports, international services) or exempt (financial services, residential property sales). If not registered, you cannot charge GST.
What is a UEN and do I need one on invoices?
The UEN (Unique Entity Number) is Singapore's standard identifier for businesses, issued by ACRA. It's required on tax invoices and other official documents. Sole proprietors use a 9-digit UEN, limited companies a 9-character UEN with the entity-type suffix, and other entities the appropriate format. Look it up free at uen.gov.sg.
What payment terms are standard in Singapore?
Net 30 is the most common term in Singapore B2B. Net 60 and Net 90 are common for large MNCs and government clients. The Government's Prompt Payment Guidelines target Net 30 for SME suppliers. Late-payment interest can be charged if stated in the contract — typically 1–1.5% monthly, capped by the Civil Law Act.
What is the Singapore reverse-charge GST regime?
Singapore's reverse charge applies to GST-registered businesses making non-fully-taxable supplies (banks, insurers, residential property owners) who import services from overseas suppliers. The recipient self-accounts for GST on the imported service. Mark relevant invoices 'Subject to reverse charge under section 14(1) GST Act' for clarity.
Can sole proprietors issue Singapore tax invoices?
Yes — sole proprietors can issue tax invoices once they have a UEN and (if applicable) a GST registration. Below the S$1m threshold, you issue regular invoices without GST. Many freelancers operate as sole proprietors registered with ACRA but unregistered for GST until they cross the threshold.
Does Singapore require e-invoicing?
Not mandatorily, but IRAS strongly encourages Peppol e-invoicing through the InvoiceNow network. From November 2025, all newly GST-registered companies must use InvoiceNow for B2B and B2G transactions; existing registered companies are being phased in through 2026. Set up via your accounting software or an IRAS-approved Access Point.
Need more than a one-time Singapore invoice?
InvoiceQuickly tracks payments, sends reminders, and automates your invoicing workflow. It handles Singapore tax compliance automatically.
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