Singapore GST Calculator
Calculate Singapore Good & Service Tax at the current 9% rate. Instantly add or remove GST from any SGD amount.

Select Your Mode
Choose between "Add GST to Net" for creating quotes or "Extract GST from Total" to help reconcile receipts and expenses.

Enter Income
Input your SGD dollar amount. The calculator processes your input in real-time, displaying a breakdown of the net and tax components as you type.

See Breakdown
Switch the GST toggle ON (9%) for standard taxable items or OFF (0%) for GST-free food and residential rent to see your calculated totals.
GST Calculator
Singapore Goods and Services Tax at 9%
At a Glance
Since 1 January 2024
SGD per year (taxable turnover)
Due last day of following month
Raised from 8% on 1 Jan 2024
Amount Breakdown
How GST Is Calculated
Singapore GST is a broad-based consumption tax levied on most goods and services supplied in Singapore and on goods imported into Singapore. The current rate of 9% took effect on 1 January 2024. GST is charged on the value of the supply and is the same rate regardless of the transaction amount.
GST Amount = Price × 0.09
Total = Price × 1.09
Example: $100 × 1.09 = $109.00
Base Price = Total ÷ 1.09
GST Amount = Total − Base
Example: $109 ÷ 1.09 = $100.00
Miss a deadline and IRAS charges S$200+ — even on nil returns. Sleek handles your quarterly GST filing from S$100/month.
What Is (and Isn't) Subject to GST
Zero-Rated (0%) Supplies
- ✓ Exports of goods from Singapore
- ✓ International services (e.g. freight, logistics)
- ✓ International passenger transport
- ✓ Supplies made to overseas customers (conditions apply)
GST Exempt Supplies
- – Most financial services
- – Sale & lease of residential properties
- – Investment precious metals (IPM)
- – Digital payment tokens (since 1 Jan 2020)
GST Filing Deadlines
Most GST-registered businesses in Singapore file quarterly returns. The return and payment are due by the last day of the month following the end of your accounting period. Late filing or payment incurs a 5% late payment penalty, plus potential prosecution.
| Filing Frequency | Who It Applies To | Due Date | Example |
|---|---|---|---|
| Quarterly | Standard for most GST-registered businesses | Last day of month following quarter end | Jan–Mar return due 30 Apr |
| Monthly | Businesses that elect monthly filing (e.g. exporters) | Last day of the following month | Jan return due 28 Feb |
Key Quarterly GST Filing Due Dates
* GST returns must be filed and payment made electronically via myTax Portal. Always confirm your specific accounting period and due dates with IRAS.
GST Rate History
Singapore introduced GST in 1994 at a low rate to fund long-term government expenditure. The rate has been gradually increased over the years as part of Singapore's fiscal planning, with the most recent increase in January 2024 as announced in Budget 2022.
Why was GST raised to 9%? The Singapore government announced in Budget 2022 that GST would be raised in two stages to fund increased healthcare and social spending for an ageing population. An S$6 billion Assurance Package was provided to help Singaporeans offset the additional costs.
For educational purposes only. This content is designed to help you understand how Singapore GST works. It may not reflect your actual GST liability.
This tool does not constitute financial or tax advice. Your individual GST situation may differ due to specific exemptions, zero-rated supplies, or rulings that apply to you. Always consult a registered tax agent or accountant for personalised advice.
All GST rates and thresholds are sourced from the Inland Revenue Authority of Singapore (IRAS) and are verified as of March 2026. The current GST rate of 9% took effect on 1 January 2024. Rates are subject to change — always verify current rates directly with IRAS.
GST registration becomes compulsory once you hit S$1M. Sleek handles the full IRAS application for a one-time fee from S$400.
Frequently Asked Questions
Everything you need to know about Good & Service tax in Singapore.
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