Tax Percentage Calculator
Calculate the effective tax percentage from base amount and tax charged.
Amounts
₹
₹
Calculated Rate
Effective Tax Rate18.00%
Base Amount₹10,000.00
Tax Amount₹1,800.00
Total Amount₹11,800.00
Calculate the effective tax percentage from base amount and tax charged.
Find out what GST rate was charged on any transaction using this free GST rate calculator.
A GST rate calculator determines the GST percentage applied to a transaction when you know the base price and the GST amount. Enter these two values and the tool instantly tells you the effective GST rate.
This is particularly useful when you receive an invoice that shows amounts but not the rate, or when you want to verify whether a supplier charged the correct GST slab.
Suppliers sometimes apply the wrong GST rate due to classification errors or mistakes. If you are a GST-registered business claiming input tax credit, paying more GST than required is a loss. Paying less GST than required creates a compliance risk.
Using a GST rate calculator to verify charges takes just seconds and can save you money and compliance problems.
Enter the base price (price before GST) and the GST amount shown on the invoice. The calculator divides the GST by the base and multiplies by 100 to give the effective GST rate.
Compare this rate to the expected GST slab for your product or service. Standard Indian GST slabs are 0%, 5%, 12%, 18%, and 28%.
A restaurant bill with 5% GST, a software service with 18%, a luxury item with 28%, or an agricultural product that should be exempt. If the rate you calculate does not match expectations, question the invoice.
Also use this when converting older invoices in non-standard formats where the rate was not explicitly stated.
Claiming input tax credit requires that GST was validly charged at the correct rate under the GST Act. If a supplier applied the wrong rate, your input tax credit claim could be rejected during GST return reconciliation.
Always verify the GST rate on purchases before filing your GSTR returns.
Tez Invoice is our free online invoice generator. No sign up. No watermark. Download clean PDF or JPEG invoices in seconds, right from your browser.
Common questions about GST Rate Calculator: Determine GST Rate from Base and Tax Amounts on Tez Invoice.
It finds the GST rate from a base price and GST amount. Divide the GST by the base price and multiply by 100.
Enter the base price and the GST amount from the invoice. The calculator shows the exact GST rate applied.
Yes. Free with no sign up.
It may indicate an error in the invoice. Standard GST slabs in India are 0%, 5%, 12%, 18%, and 28%.
You can only claim valid input tax credit for GST charged at the correct rate. An incorrect rate may make your ITC claim invalid.
Yes. Fully responsive.
No. In-browser calculations only.
Yes. The calculator works for goods and services alike.
0%, 5%, 12%, 18%, and 28% are the main GST rates in India.
Use the free Invoice Generator on Tez Invoice.