GST Calculator - LokSevaPortal

GST Calculator

Instantly calculate exclusive (Add GST) or inclusive (Remove GST) tax amounts. View a clear breakdown of CGST and SGST for your invoices and billing.

Initial Amount (₹)

1,00,000

GST Slab Rate (%)

18%

Net Amount

Before tax

GST Amount

Total tax payable

Total Amount

After tax

Tax Breakdown

Net Amount

GST Applied

Total Price

CGST and SGST are equally divided (9% each for an 18% slab).

Invoice Breakdown

Detailed split of base price and tax components

18% GST Applied

Description	Net Amount	CGST (Central)	SGST (State)	Total Amount

Understanding GST Calculations

Goods and Services Tax (GST) is an indirect tax used in India on the supply of goods and services. It is a comprehensive, multistage, destination-based tax.

Add GST (Exclusive)

Use this when the product/service price is given without tax, and you need to calculate how much tax to add to arrive at the final billing amount. Formula: GST Amount = (Base Price × GST Rate) / 100.

Remove GST (Inclusive)

Use this when the given price already includes tax, and you need to reverse-calculate to find the original base price and the tax component. Formula: Base Price = Total Price - [Total Price × (100 / (100 + GST Rate))].

Frequently Asked Questions

The primary GST slabs in India are 5%, 12%, 18%, and 28%. Some essential goods are exempt (0%), while certain precious stones and metals have special rates (like 0.25% or 3%).

For intra-state sales (within the same state), the GST is split equally into CGST (Central) and SGST (State). For inter-state sales (between different states), a single IGST (Integrated) is applied, which equals the total GST rate.

Yes. This calculator is built using pure HTML, CSS, and JS with zero external dependencies. You can paste the entire block directly into an Elementor HTML widget and it will work perfectly.

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