Question 1

What is GST?

Accepted Answer

Goods and Services Tax (GST) is an indirect tax levied on the supply of goods and services in India. It replaced multiple earlier taxes like VAT, service tax, and excise duty with a single, unified tax system.

Question 2

How does this GST calculator work?

Accepted Answer

This calculator works in two modes. 'Add GST' calculates the GST amount and total invoice value from a base price that excludes tax. 'Remove GST' extracts the GST component and base price from a tax-inclusive amount, which is useful when you only know the final price.

Question 3

What are the standard GST rates in India?

Accepted Answer

India follows a slab-based GST structure with rates of 5%, 12%, 18%, and 28% for most goods and services, along with a 0% rate for essential items. Some special categories like gold and rough diamonds have separate rates outside these standard slabs.

Question 4

What is the difference between CGST and SGST?

Accepted Answer

For transactions within the same state, GST is split equally between Central GST (CGST) and State GST (SGST), collected by the central and state governments respectively. For inter-state transactions, a single Integrated GST (IGST) is charged instead.

Question 5

How do I calculate GST from a total amount?

Accepted Answer

Select 'Remove GST' mode and enter the tax-inclusive total amount. The calculator divides the total by (1 + GST rate/100) to find the base price, then subtracts it from the total to get the GST amount.

Question 6

Is GST calculated on MRP?

Accepted Answer

GST is typically included in the MRP (Maximum Retail Price) of a product. To find out how much GST is embedded in an MRP, use the 'Remove GST' mode with the MRP as your input amount.

Question 7

Who needs to register for GST?

Accepted Answer

Businesses with an annual turnover above the threshold specified by GST law (which varies by state and business type) are required to register for GST. Certain businesses, like those making inter-state supplies, must register regardless of turnover.

Question 8

Can GST rates change over time?

Accepted Answer

Yes. GST rates are periodically revised by the GST Council based on economic policy. This calculator lets you enter any custom rate, so you can recalculate with updated rates whenever they change.

Question 9

Is this GST calculator accurate?

Accepted Answer

Yes. The calculator uses the standard GST formulas used across accounting and invoicing. However, always verify GST rates for your specific goods or services category, as some items have exemptions or special rates.

Question 10

Is this GST calculator free to use?

Accepted Answer

Yes. The CalcMint GST Calculator is completely free to use. You can calculate unlimited GST scenarios without registration or hidden charges.

GST Calculator

How GST is Calculated

Add GST Formula

GST Calculation Example

Worked Example

CGST & SGST Split

Intra-State Tax Split

Frequently Asked Questions