Create. Track. File. Grow — NextBill Handles Your Numbers So You Can Focus on Business

GST Calculator

Actual Amount
0.0
SGST
0.0
CGST
0.0
Total GST
0.0
Total Amount
0.0

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.

What is GST, and its application?

Goods and Services Tax (GST) is an indirect tax charged on the provision of goods and services. It has replaced various indirect taxes like Value Added Tax (VAT), sales tax, and purchase tax, among others. The GST law was passed by Parliament on March 29, 2017, and came into force on July 1, 2017. In this single domestic indirect tax regime, GST is charged at the time of sale across the nation.

How to use a GST calculator?

Using a GST amount calculator enables you to determine the tax payable simply by going through a simple process.

  • Select between GST Inclusive or GST Exclusive according to your requirement.
  • Enter the starting amount.
  • Choose the relevant GST rate; there is a list of pre-defined GST rates in this tool, so there is no need to look for a GST rate finder.
  • Click on Calculate to see the result. The result will show both the total sum and the pre-GST/post-GST amounts based on your original stipulations.
GST Inclusive

What is GST inclusive and GST exclusive?

GST Inclusive means the price already includes GST — you don’t add extra tax on top. For example, if something costs ₹1,000 inclusive of 18% GST, the tax is already part of the ₹1,000.
GST Exclusive means GST is added over the base price. So, if an item is ₹1,000 exclusive of 18% GST, the final amount becomes ₹1,180.
Inclusive keeps things simple for customers, while exclusive is useful for clear tax reporting in business.

How to calculate GST Inclusive and Exclusive?

1. GST Inclusive Formula

This is used when the GST is already included in the total price (you want to find the base price and GST portion).
Formula:
GST Amount= Total Price × [GST Rate ÷ (100 + GST Rate)]
Base Price= Total Price − GST Amount
Example:
  • Total price = ₹1,180
  • GST Rate = 18%
    GST Amount= 1180 × [18 ÷ (100 + 18)] = 1180 × 18/118 = ₹180
    Base Price= 1180 − 180 = ₹1,000

2. GST Exclusive Formula

This is used when the GST is not included in the price (you want to add GST to the base price).
Formula:
GST Amount= (Original Amount × GST Rate) ÷ 100
Total Price= Original Amount + GST Amount
Example:
  • Base price = ₹1,000
  • GST Rate = 18%
    GST Amount= (1000 × 18) ÷ 100 = ₹180
    Total Price= 1000 + 180 = ₹1,180

How to calculate Goods and Services Tax?

GST ApplicationsGST Applications

As a taxpayer, you must know the factors in every way, all the exempted goods, eligible ineligible ITC, and inter-state sales. One of the most important advantages of GST rates is that you can avoid paying an 18% interest rate, which you will have to pay in case when you pay less than you are supposed to pay.

Nextbill contact us banner

Experience next-level e-invoicing, GST filing, Inventory management, and many more- All in one platform

Frequently asked questions

Who is eligible to use GST calculator?

Toggle

Anyone can use a GST calculator, including businesses, retailers, wholesalers, manufacturers, accountants, and even consumers. It is designed for anyone who needs to calculate GST on goods or services.

What is GST calculator?

Toggle

A GST calculator is a digital tool that helps calculate the Goods and Services Tax on a product or service. It shows the GST amount and total cost based on the entered value and applicable tax rate.

What is the use of GST calculator?

Toggle

It is used to compute the GST amount quickly and accurately, either by adding GST to a base price or separating GST from a total amount. It simplifies billing, pricing, and tax planning.

On what basis is GST calculated?

Toggle

GST is calculated based on the taxable value of goods or services and the applicable GST rate (e.g., 5%, 12%, 18%, 28%). It also depends on whether the transaction is intra-state (CGST + SGST) or inter-state (IGST).

What taxes are subsumed under the GST?

Toggle

GST has replaced multiple indirect taxes, including: Central Excise Duty, Service Tax, Value Added Tax (VAT), Central Sales Tax (CST), Entry Tax, Luxury Tax, Entertainment Tax, and more.

How does the GST calculator work for manufacturers and wholesalers?

Toggle

It helps them calculate GST on the cost of production or wholesale price, determine selling price, and estimate tax liabilities. It also assists in calculating input tax credit and profit margins.

What advantage does the GST calculator offer?

Toggle

The GST calculator saves time, reduces errors, ensures accurate tax calculation, simplifies invoice preparation, and helps in tax compliance and better pricing decisions.

How can a buyer use the GST calculator?

Toggle

A buyer can use it to check the GST paid on purchases, verify if the tax charged is correct, and understand the tax breakdown on bills or invoices.

How to calculate GST using a GST calculator?

Toggle

Enter the amount (inclusive or exclusive of GST). Select the GST rate (e.g., 5%, 12%, 18%, 28%). The calculator will show the GST amount and total price (inclusive or exclusive)

How to calculate GST percentage?

Toggle

If price is exclusive of GST: GST Amount = (Original Amount × GST Rate) ÷ 100 If price is inclusive of GST: GST Amount = Original Amount × (GST Rate ÷ (100 + GST Rate))

Estimate Management
Send branded, professional estimates that impress —- and convert to invoices instantly.
E-Invoicing
Generate GST-ready e-invoices in a flash — with all details auto-filled and IRN-ready.
GST Filing
Auto-captured data, accurate returns, and one-click GST filing- stress-free, every month.
E-Way Bill
Create, manage, and track E-Way Bills without juggling portals or paperwork.
Inventory Management
Real-time inventory updates so you never miss a sale — or overstock again.
Purchase Management
Organize your purchases, vendors, and bills — all in one clean, bright view.

Smart Businesses Choose Smart Solutions – Book Your Demo Today

01

Book a time slot

02

Fill-in some details

03

Attend the demo