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🇸🇬GST 9%

Singapore GST & Invoicing Guide for Businesses (2026)

GST 9%, IRAS registration, and UEN on invoices — the complete compliance guide

Last updated: 30 April 2026 · Written by the Hisabi team

TL;DR — the key facts

  • GST rate is 9% (raised from 8% on 1 January 2024). Mandatory registration threshold: SGD 1 million annual taxable turnover.
  • IRAS (Inland Revenue Authority of Singapore) administers GST. Quarterly returns are standard.
  • Every GST tax invoice must include your GST registration number (in the format M12-3456789-0) and UEN.
  • Singapore has no capital gains tax and no withholding tax on dividends. Corporate income tax rate is 17%.

What you need to know

Singaporetax & invoicing — covered

GST

Singapore GST at 9%

GST was raised from 8% to 9% on 1 January 2024. Most goods and services are standard-rated. Exports and international services are zero-rated. Financial services, residential property, and precious metals are exempt.

  • Mandatory registration: SGD 1 million taxable turnover in past 12 months or expected in next 12 months
  • Voluntary registration available below SGD 1 million
  • Quarterly GST returns due 1 month after period end
  • GST registration number format: M12-3456789-0
Corporate Tax

Singapore Corporate Income Tax

Singapore's corporate tax rate is 17% — one of the lowest in the region. New startups receive a 75% exemption on the first SGD 100,000 of chargeable income for the first 3 years.

  • Corporate tax rate: 17% of chargeable income
  • Startup exemption: 75% on first SGD 100,000 + 50% on next SGD 100,000 (first 3 years)
  • Partial tax exemption for established companies: 75% on first SGD 10,000 + 50% on next SGD 190,000
  • No capital gains tax; no withholding tax on dividends
Invoicing

GST Invoice Requirements

A full GST tax invoice is required for all B2B supplies to GST-registered customers. Simplified invoices (amounts under SGD 1,000) do not require buyer details.

  • Supplier name, GST registration number, and UEN
  • Buyer's name and address (full invoice) or just totals (simplified)
  • Invoice number and date
  • Description of supply and GST rate
  • GST amount and total amount including GST

Timeline

Key compliance dates

  1. January 2023

    GST raised from 7% to 8%.

  2. January 2024

    GST raised from 8% to 9%.

GST and invoicing compliance

Frequently asked questions — Singapore

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9%, raised from 8% on 1 January 2024. Singapore raised GST in two steps (7% → 8% in 2023, 8% → 9% in 2024) as part of its fiscal consolidation plan. This rate is expected to remain stable for the near term.

Businesses with taxable turnover exceeding SGD 1 million in the past 12 months, or expected to exceed SGD 1 million in the next 12 months, must register. Voluntary registration is available and can be beneficial for input tax credit claims.

UEN (Unique Entity Number) is Singapore's business identifier, similar to a company registration number. It should appear on all business documents including invoices. GST-registered businesses must also display their GST registration number on tax invoices.

Supplier name, address, GST registration number, and UEN; buyer's name and address; unique invoice number; invoice date; description of goods or services; GST rate and amount; and total amount including GST.

Corporate income tax is 17%, one of the lowest in Asia. There is no capital gains tax and no withholding tax on dividends paid to residents. There is no personal income tax on overseas income for individuals. GST is the main indirect tax businesses need to manage.

Hisabi handles this for you

GST-compliant invoices, automatically

Hisabi generates invoices with the correct tax fields, GST Reg. No. display, and currency for Singapore. Start free — no credit card required.

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