When should I use reverse GST?

Use reverse GST when the amount you have already includes GST and you need the base value and GST component separately.

Which GST rates are supported?

It supports the common India GST slabs: 0%, 5%, 12%, 18%, and 28%.

Does this split CGST/SGST and IGST?

This tool splits total into base and total GST. For CGST/SGST vs IGST breakup, use the CGST/SGST/IGST splitter tool.

Does the tool store my amounts?

No. The calculation runs in your browser and values aren’t stored on our servers.

Reverse GST Calculator

Name: Reverse GST Calculator
Availability: InStock
Author: Toolspy

Calculate base amount and GST component from total amount. Perfect for invoice analysis and tax breakdown with all GST rates

Privacy-First • No Data Collection

Reverse GST Calculator

Calculate base amount and GST component from total amount with Toolspy's professional reverse GST calculator. Perfect for invoice analysis and tax breakdown.

Reverse GST Calculator

Enter total amount to find base amount and GST component

Total Amount (₹) - GST Inclusive

Enter the final amount that already includes GST

GST Rate

GST Rates

0% (Exempt)

12%

18%

Selected

28%

Quick Tips

Use this when you have the final price and need to find the base amount

Perfect for analyzing invoices and understanding tax breakdown

All calculations are done locally for privacy

Common Use Cases

Invoice Analysis: Break down total invoice amount

Tax Planning: Understand tax component in prices

Price Comparison: Compare base prices across vendors

Financial Analysis: Analyze cost structures