Singapore GST Calculator 2026 (9%)
Calculate Singapore Goods and Services Tax (GST) at the current 9% rate. Add GST to a net amount, or remove GST from an inclusive total. Includes the S$1 million business registration threshold check and a 7% historical comparison toggle.
Singapore GST in 2026
Singapore's Goods and Services Tax (GST) is a broad-based consumption tax applied on the supply of goods and services in Singapore and on goods imported into Singapore. The rate increased from 8% to 9% on 1 January 2024, completing the staged increase announced in Budget 2022. As of 2026, the rate remains 9% (source: iras.gov.sg GST).
GST is administered by the Inland Revenue Authority of Singapore (IRAS). It is similar to VAT in many jurisdictions but with key Singapore-specific features: zero-rated international services, exempt residential property and financial services, and a relatively narrow exemption list compared to many countries.
Who Must Register for GST
Compulsory registration applies if your taxable turnover exceeds S$1 million in the past 12 months OR is reasonably expected to exceed S$1 million in the next 12 months. Voluntary registration is allowed for businesses below the threshold who want to claim input GST. Late registration triggers retrospective backdating to when you should have registered, plus penalties (source: iras.gov.sg registration).
Once registered, GST-registered businesses must charge 9% GST on standard-rated supplies, file GST F5 returns quarterly (or monthly for high-volume businesses), and remit net GST (output GST minus claimable input GST) to IRAS by the due date.
How to Add or Remove GST
To add 9% GST to a net amount: multiply by 1.09 (e.g., S$100 net + 9% GST = S$109 gross). To remove GST from a gross amount: divide by 1.09 (e.g., S$109 gross ÷ 1.09 = S$100 net; GST amount = S$109 − S$100 = S$9). The GST-extraction formula avoids the common error of taking 9% of the gross (which would understate the GST and overstate the net).
2025 Reverse Charge Updates and Overseas Vendor Registration
Since 1 January 2023, Singapore extended its GST regime to cover imported services and remote services from overseas suppliers, requiring overseas vendors with global turnover over S$1M and Singapore B2C sales over S$100K to register for GST under the Overseas Vendor Registration (OVR) regime. From 2025, low-value goods (under S$400) imported by air/post are also GST-taxable under OVR rules. Singapore consumers may notice GST showing on Amazon US, eBay, and Shein invoices for the first time.
For broader Singapore tax planning, see our CPF retirement calculator and SRS tax relief calculator. For corporate tax matters, the Singapore corporate tax calculator handles Form C-S and S/EI returns.
Last updated April 2026. Sources: iras.gov.sg GST, Ministry of Finance Singapore.