What GST rate does this calculator use?
This page uses Singapore's current prevailing GST rate of 9% for standard-rated supplies. It also distinguishes between zero-rated supplies at 0% and exempt supplies where GST is not charged.
Finance calculator
GST Calculator
Calculate Singapore GST using the current 9% standard rate and the official IRAS distinction between standard-rated, zero-rated, and exempt supplies.
Mode
GST is charged at 9% for standard-rated supplies made in Singapore.
What this page is based on
IRAS states that GST is charged at the prevailing rate of 9% on standard-rated supplies made in Singapore. IRAS also explains that exported goods and qualifying international services may be zero-rated at 0%, while exempt supplies are not charged GST.
Official references checked on April 10, 2026: IRAS When to Charge GST and IRAS Supplies Exempt from GST.
What this calculator does not cover
It does not cover every special GST regime. Customer accounting, imported services, imported low-value goods, and other detailed cases can require separate treatment under IRAS rules.
Frequently asked questions
What is the difference between zero-rated and exempt supplies?
IRAS treats zero-rated supplies as taxable supplies charged at 0%, while exempt supplies are not charged GST. That distinction matters for tax treatment even though both show 0% GST on this calculator.
Can I use this calculator for every business case?
No. IRAS has specific rules for customer accounting, imported services, low-value goods, and other special cases. This page is meant for straightforward standard-rated, zero-rated, and exempt supply calculations.
How do I remove GST from a GST-inclusive amount?
For a standard-rated supply, the GST portion is extracted from the inclusive amount using the GST fraction method rather than by simply taking 9% of the gross amount.
More finance tools
All finance tools →Salary Calculator
PAYEstimate salary after tax, take-home pay, and employer cost across major countries.
UAE Salary Calculator
AEDCalculate monthly UAE net salary from basic salary, allowances, overtime, and deductions.
UAE Gratuity Calculator
EOSEstimate UAE end-of-service gratuity from monthly basic salary, contract dates, and unpaid leave.
UAE Visa Cost Calculator
VISAEstimate total UAE visa fees including government charges, medical, Emirates ID, and typing centre costs.
Mortgage Calculator
MTGCalculate monthly home loan payments with down payment, property tax, and insurance.
DTI Calculator
DTICalculate debt-to-income ratio from gross monthly income and recurring monthly debt payments using the CFPB definition.