GST calculation result
Tax amount: Rs 3,600.00
Base amountRs 20,000.00
GST rate18%
GST amountRs 3,600.00
Total (incl. GST)Rs 23,600.00
Simple method: GST amount = Base × Rate / 100. Inclusive total = Base + GST.
When this helps
- Generating quick quotations with GST added.
- Checking invoice calculations before sharing with clients.
- Comparing tax impact across 5%, 12%, 18%, and 28% slabs.