Remove GST (Reverse GST) Results at a Glance: Quick Reference Table
Sometimes you only need a ballpark figure. This page lists remove gst (reverse gst) results for a range of common inputs, so you can see the pattern at a glance.
| Inputs | GST included | Price before GST |
|---|---|---|
| Price including GST: 109 | S$9.00 | S$100.00 |
| Price including GST: 54.5 | S$4.50 | S$50.00 |
| Price including GST: 81.75 | S$6.75 | S$75.00 |
| Price including GST: 136 | S$11.23 | S$124.77 |
| Price including GST: 164 | S$13.54 | S$150.46 |
| Price including GST: 218 | S$18.00 | S$200.00 |
How these were worked out
GST portion = inclusive price × 9/109.
Singapore's tax system is simple by global standards, but the progressive bands, reliefs and the 9% GST still trip people up. A quick calculation helps you set aside the right amount before IRAS sends your notice of assessment, or check that a bill has been worked out correctly.
Tax planning in Singapore is mostly about timing and reliefs rather than complex structures. Topping up CPF, contributing to SRS and claiming every relief you qualify for can lower your marginal rate band, and the savings are larger for higher earners.
IRAS issues a notice of assessment, usually from April onwards, and tax is due within a month, although most people opt for interest-free GIRO instalments. Estimating your bill early means you can budget for it instead of being surprised.
The Goods and Services Tax rose from 8% to 9% on 1 January 2024. Businesses with taxable turnover above S$1 million must register, and GST-registered retailers must quote prices to consumers inclusive of GST, so most shelf prices already include it.
Tips
- SRS and CPF top-up relief save more tax the higher your marginal rate is.
- GST-registered businesses must show prices inclusive of GST to consumers, so a listed retail price already includes the 9%.
- Keep receipts and records for at least five years in case IRAS asks for them.
Related calculations
- Service Charge & GST Calculator: Restaurant bills in Singapore often show '++': a 10% service charge, then 9% GST on the subtotal.
- SRS Tax Savings Calculator: Shows how much tax you save by contributing to the Supplementary Retirement Scheme.
- CPF Cash Top-Up Tax Relief Calculator: Estimates the tax saved from Retirement Sum Topping-Up: up to S$8,000 for yourself and S$8,000 for family members.
- Rental (Lease) Stamp Duty Calculator: Calculates stamp duty on a tenancy agreement of four years or less at 0.4% of the total rent.
For your exact numbers, use the Remove GST Calculator (Reverse GST).
Run your own numbers: Remove GST Calculator (Reverse GST)