Free GST Calculator

Instantly add or remove GST from your prices. Get a clean breakdown of CGST and SGST splits for your invoices.

Ad Space

How to Use the GST Calculator

Generating invoices and filing taxes requires precise calculations. Our free online GST Calculator helps you instantly compute GST amounts, whether you need to add taxes to a base price or extract taxes from an inclusive final price.

To Add GST (Exclusive), enter your base product price, select the GST slab (such as 18%), and calculate. The tool will add the tax on top, providing you with the final total price. This is perfect for pricing catalogs or wholesale invoicing.

To Remove GST (Inclusive), toggle the tool mode and enter your total receipt amount. The tool will mathematically extract the GST, revealing the original base amount before taxes were applied. This is incredibly useful when processing receipts for accounting where only the grand total is known.

Additionally, the calculator provides a clean split of the total GST into CGST (Central GST) and SGST (State GST) halves, which is required for intra-state billing and accounting in India.

Disclaimer: This tool is provided for general calculation and educational purposes only. Always consult a certified tax professional or accountant for official GST filing, returns, and compliance.

Frequently Asked Questions

How do you calculate GST?

To add GST: GST Amount = (Base Amount × GST Rate) / 100. To remove GST from an inclusive total: Base Amount = Total Amount / (1 + (GST Rate / 100)).

What are CGST and SGST?

CGST (Central Goods and Services Tax) and SGST (State Goods and Services Tax) are two components of GST applied to intra-state sales in India. They equally split the total GST rate (e.g., an 18% GST is split into 9% CGST and 9% SGST).

Can I calculate a custom GST rate?

Yes! While the tool defaults to the standard 5%, 12%, 18%, and 28% slabs, you can select 'Custom' from the dropdown to enter any percentage rate you need.

Ad Space