Instant Tax & Invoice Computation

Free Online GST Calculator

Calculate Goods and Services Tax (GST) online in seconds. Add GST to net amounts or remove GST from gross prices with standard tax slabs (5%, 12%, 18%, 28%).

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Inclusive & Exclusive Modes

Easily calculate the net pre-tax price from an MRP, or add tax to your product billing amount.

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Standard & Custom Slabs

Pre-configured with standard 5%, 12%, 18%, and 28% brackets plus custom percentage support.

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CGST & SGST Split

Displays equal Central GST and State GST tax breakdown for domestic billing compliance.

Understanding Goods & Services Tax (GST)

Goods and Services Tax is a comprehensive destination-based indirect tax levied on the manufacture, sale, and consumption of goods and services. When computing invoices or analyzing receipts, you frequently need to either add GST (Exclusive) or remove GST (Inclusive).

1
Enter Base or Total Amount

Input the financial sum you wish to calculate tax on.

2
Select Tax Rate

Pick from standard slabs (5%, 12%, 18%, 28%) or enter a custom rate.

3
Choose Mode

Toggle between Add GST (tax exclusive) or Remove GST (tax inclusive) for instant numbers.

Frequently Asked Questions

How do I remove GST from an inclusive price?
The formula to extract GST from an inclusive amount is: GST Amount = Total Price - [Total Price × (100 / (100 + GST%))]. The original net amount is Total Price - GST Amount.
How is GST divided between CGST and SGST?
For intra-state transactions, the total GST is split equally: 50% goes to CGST (Central Government) and 50% to SGST (State Government).
Is this calculator suitable for invoicing and business accounting?
Yes, the formulas match standard Indian GST and international VAT accounting practices.

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