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 Your Amount
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.
SG GST Calculator
9% rate · Effective from 1 January 2024
At SGD 1M annual turnover, GST registration is compulsory.
You must apply within 30 days of crossing SGD 1M in the past 12 months — late registration attracts a 10% penalty plus back-dated GST.
At a Glance
Key thresholds & IRAS deadlines
- IRAS-registered filing agent
- Includes voluntary & compulsory routes
- 9% GST claim-back on input tax from day one
How GST Is Calculated
Singapore GST is a flat 9% rate applied to most goods and services. Calculation is straightforward whether you're adding GST to a net price or extracting it from a GST-inclusive total.
Adding GST
When pricing a product or service excluding GST, multiply by 1.09 to find the GST-inclusive total.
Total = Price × 1.09
Example: SGD 100 × 1.09 = SGD 109.00
Extracting GST
When working backwards from a GST-inclusive amount, divide by 1.09 — or take 9/109 (the IRAS tax fraction) to find the GST portion directly.
GST = Total × 9/109
Example: SGD 109 ÷ 1.09 = SGD 100.00
What Is (and Isn't) Subject to GST
Most goods and services sold in Singapore are standard-rated at 9%. Other supplies fall into two main categories where no GST is charged: zero-rated (where input tax credits remain claimable) and exempt (where credits cannot be claimed). Out-of-scope supplies sit entirely outside the GST system.
Zero-Rated (0%) Supplies
- ✓Exports of goods from Singapore
- ✓International services (freight, logistics, telecoms)
- ✓International passenger transport
- ✓Supplies to overseas customers (conditions apply)
- ✓Sale of goods stored in Free Trade Zones
Exempt Supplies (No Credits)
- –Most financial services (loans, insurance, securities)
- –Sale and lease of residential properties
- –Investment Precious Metals (IPM)
- –Digital payment tokens (since 1 Jan 2020)
GST Filing Cycles & Due Dates
GST-registered businesses lodge returns through Form F5 via the IRAS myTax Portal. The return and payment are due 1 month after the end of the prescribed accounting period. Late filing attracts an immediate SGD 200 penalty, plus an additional SGD 200 per completed month, capped at SGD 10,000 per return. Late payment attracts a 5% penalty immediately, then 2% per month after 60 days, capped at 50% of the unpaid tax.
| Filing Cycle | Who It Applies To | Due Date |
|---|---|---|
| Quarterly | Default for most GST-registered businesses | Last day of month after period end |
| Monthly | Elected (commonly exporters in regular refund position) | Last day of the following month |
| Annual | Available to limited approved cases only | Subject to IRAS approval |
Standard Quarterly Filing Due Dates
Default accounting periods for a calendar-aligned filer. Specific accounting periods are assigned by IRAS at registration and may differ.
GST Rate History
Singapore introduced GST on 1 April 1994 at 3% to broaden the tax base and reduce reliance on direct taxation. The rate has been raised five times, most recently in two stages announced in Budget 2022 to fund increased healthcare and social spending for an ageing population.
Frequently Asked Questions
Common questions about Singapore GST — registration, rates, zero-rated and exempt supplies, filing deadlines, and tax invoices — answers verified against official IRAS guidance.
Important Disclaimer
For educational and informational purposes only. This calculator produces estimates based on the inputs provided and the official IRAS Goods and Services Tax (GST) settings effective from 1 January 2024. The standard GST rate is 9%, raised from 8% on 1 January 2024 as the second stage of the two-stage increase announced in Budget 2022. The compulsory registration threshold is SGD 1 million in annual taxable turnover, assessed on both retrospective and prospective bases. Standard accounting periods are quarterly with the GST F5 return and payment due within 1 month after the end of the accounting period. Late submission attracts an immediate SGD 200 penalty plus SGD 200 for every additional completed month, capped at SGD 10,000 per return. Late payment attracts a 5% penalty on unpaid tax, with an additional 2% per month after 60 days, capped at 50% of the unpaid tax.
No warranty of accuracy. While Money Snap takes reasonable care to source figures from official authorities (IRAS, MAS, MoneySense), this calculator is provided "as is" without any express or implied warranty as to accuracy, completeness, timeliness, or fitness for any particular purpose. GST rules, registration thresholds, accounting period assignments, due dates and penalty rates change from time to time — figures shown may be out of date, and individual circumstances such as Reverse Charge supplies, Overseas Vendor Registration (OVR) regime, exempt supplies, mixed supplies, GST groups, or international transactions not captured by the inputs may materially affect actual GST obligations.
Not financial or tax advice. Information provided is general in nature only and does not take into account your business circumstances, structure, or industry. Results do not constitute financial, tax, or legal advice and use of this calculator does not create an advisory relationship. Before relying on any figure shown, obtain personalised advice from a registered tax agent, accountant, or seek formal guidance directly from IRAS.
Limitation of liability. To the maximum extent permitted by law, Money Snap accepts no liability for any loss, damage, cost, or expense — direct or indirect — arising from reliance on this calculator or the information it produces. Users are responsible for verifying all figures with the relevant authority before relying on them. Use of this calculator is subject to our Terms of Use.
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