How to calculate GST in India?

Enter the base amount and GST slab percentage. The calculator computes the tax amount added or removed from the total value.

What is Inclusive GST?

Inclusive GST means the tax is already included in the price. Our calculator helps you extract the original net price before tax.

Is GST mandatory for all businesses?

GST registration is mandatory for businesses with turnover exceeding threshold limits. Please consult an expert for specific compliance rules.

Can I use this for IGST?

Yes, you can toggle Advanced Mode to see Inter-State (IGST) or Intra-State (CGST + SGST) breakdowns.

Tax Calculator

GST Calculator India (Inclusive & Exclusive Mode)

Instantly calculate GST for your products or services. Switch between inclusive and exclusive modes, apply quantities, and get a detailed tax breakdown.

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Price + GST (Exclusive) Price inclusive of GST

Net Price (Before GST) 25,000

GST Rate (%)

Item Quantity

Supply Type

Total Net Price

Total GST Amount

Total Gross Price

CGST

SGST

IGST

Doughnut Breakdown

Understanding GST Calculations

Our online tools make tax calculations straightforward for both inclusive and exclusive scenarios:

Add GST (Price + GST):
Formula: GST Amount = (Original Price × GST Percentage) / 100
Example: If price is 1,000 and GST is 18%, tax is 180, total is 1,180.

Remove GST (Price inclusive of GST):
Formula: GST Amount = Price - (Price × (100 / (100 + GST Percentage)))
Example: If total bill is 1,180 and tax is 18%, tax is 180, original net price is 1,000.

Enable the "Advanced Mode" to handle quantity calculations and see the exact split between Central (CGST), State (SGST), or Integrated (IGST) taxes.

What exactly is CGST, SGST, and IGST?

CGST stands for Central GST and SGST for State GST. These are applied on sales within the same state (Intra-state). IGST (Integrated GST) is applied when selling to a different state (Inter-state).

How many GST slabs are currently in India?

India currently uses four major tax slabs: 5%, 12%, 18%, and 28%. Some items are exempt (0%). Our calculator supports all standard slabs.

Why use a GST calculator instead of manual math?

A calculator eliminates rounding errors and provides an instant breakdown of tax types, ensuring your billing or tax filing is accurate every single time.