Finance
GST Calculator
Add or remove Goods & Services Tax at any rate — works for India, Australia, NZ, Singapore, Canada.
Formulas:
Add GST: Total = Amount × (1 + GST%)
Remove GST: Base = Amount / (1 + GST%)
GST Amount = Total − Base
GST Rates by Country
| Country | Standard Rate |
| India | 5%, 12%, 18%, 28% |
| Australia | 10% |
| Canada | 5% (+ provincial) |
| Singapore | 9% |
| New Zealand | 15% |