GST Calculator India
Calculate Goods and Services Tax (GST) at different slab rates (5%, 12%, 18%, 28%) in India. Add or remove GST, understand CGST, SGST, and IGST with our authoritative tool.
How to use
Enter the base amount, select an applicable GST rate, and choose whether to add or remove GST. Results refresh automatically or via the Calculate button.
Methodology
When adding GST, the calculator multiplies the net amount by (1 + GST rate / 100). When removing, it divides the total by the same factor to extract the net and GST portions.
Full original guide (expanded)
This GST calculator is designed for individuals and businesses in India to calculate Goods and Services Tax across slab rates. The results include a net amount, GST amount, and total (or base) value.
Data Source and Approach
The computations rely on official GST rates published by the Government of India. See the official GST rates page for up-to-date slabs (5%, 12%, 18%, 28%).
The Formula Explained
Adding GST: Total = Net × (1 + GST Rate / 100).
Removing GST: Net = Total / (1 + GST Rate / 100).
Glossary of Variables
- Net Amount: The value before GST is applied.
- GST Rate (%): The percentage rate used.
- GST Amount: The tax portion added or removed.
- Total Amount: Final value after applying or extracting GST.
How It Works: A Step-by-Step Example
For example, a net amount of ₹1,000 with an 18% GST rate results in ₹180 GST and ₹1,180 total.
Frequently Asked Questions (FAQ)
What is GST? Goods and Services Tax is a value-added tax applied to domestic consumption in India.
How do I calculate GST? Use the formulas above to add or remove GST from any amount.
What are the slab rates? Common rates are 5%, 12%, 18%, and 28%.
What is the difference between CGST, SGST, and IGST? CGST and SGST apply to intra-state supplies, while IGST applies across states.
Is the calculator valid nationwide? Yes, it applies across all Indian states under the unified GST system.