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Free tool

GST Calculator

Work out the tax on any amount in seconds. Enter a figure, pick a slab, and see the base price, CGST, SGST and total split out — whether your number already includes GST or not.

  • Inclusive & exclusive
  • All five slabs
  • No sign-up
Amount type
Actual Amount
0.0
SGST
0.0
CGST
0.0
Total GST
0.0
Total Amount
0.0
Beyond the calculator

How does NextBill help you to file GST?

You can use GST calculator from NextBill website in simple steps: You have to simply

  • Auto-fetches data from your invoices
  • Prepares GSTR-1, GSTR-3B & NIL returns
  • Match sales & purchase entries
  • One-click GST filing from dashboard
  • No manual work, no errors
  • 100% GSTN-compliant process
  • File monthly or quarterly with ease
Understanding GST

What is GST and how is it calculated?

The Goods and Services Tax (GST) is a comprehensive, destination-based tax system applied to the supply of goods and services in India. Introduced to streamline the taxation process, GST replaces a multitude of indirect taxes, such as VAT, service tax, and excise duty, creating a unified taxation system. Its primary goal is to simplify tax compliance for businesses and ensure transparency in tax administration.

GST is applicable to most goods and services, ensuring uniformity in taxation across the country. Businesses benefit from fewer tax filings, seamless input tax credits, and reduced tax burdens due to the elimination of cascading taxes.

The two modes

GST inclusive and GST exclusive amounts

GST Inclusive Amount
The total price that already includes the GST within the amount. If a product is priced at ₹118 and the GST rate is 18%, the base price is ₹100 and ₹18 is the GST. Base Price = GST Inclusive Amount ÷ (1 + GST Rate / 100).
GST Exclusive Amount
The price that does not include GST and reflects only the base price of the product or service. GST is added separately. A base price of ₹100 at 18% becomes ₹118. Total Amount = Base Price × (1 + GST Rate / 100).
CGST and SGST
On an intra-state sale the total GST is split evenly between the central and state governments, which is why the calculator shows each at half the total.
IGST
On an inter-state sale the whole amount is collected by the central government as a single IGST line rather than a CGST and SGST pair.
Questions

Frequently asked questions

GSTIN stands for Goods and Services Tax Identification Number. It is a unique 15-digit alphanumeric code assigned to every business or individual registered under the GST framework in India.

Next step

One platform, multiple plans — designed for every stage of business

Experience next-level e-invoicing, GST filing, inventory management and more, all in one place. Book a walkthrough and see it running on your own numbers.