THE DOOD TOOLBOX / ACCOUNTING
Free GST calculator
Add GST to a base amount or work backwards from a tax-inclusive total. Choose the rate that applies to your transaction.
YOUR BREAKDOWN
Every rupee, accounted for.
- Base amount
- ₹10,000.00
- Total GST
- ₹1,800.00
- Total with GST
- ₹11,800.00
The initial 18% is an example, not a rate recommendation. Values are rounded to two decimals for display. This tool calculates total GST, not CGST/SGST allocation or cess.
How to add or remove GST
For a tax-exclusive amount, multiply the base by the rate divided by 100 to find the tax. Add the tax to the base for your total. For a tax-inclusive amount, divide the total by 1 + rate ÷ 100 to recover the base.
For example, ₹10,000 before tax at an illustrative 18% gives ₹1,800 in GST and ₹11,800 overall. Entering ₹11,800 as an inclusive amount at the same rate returns ₹10,000 before tax.
Use the right rate for the supply
Confirm the applicable classification, rate and transaction treatment with your accountant and the official CBIC rate resources. This arithmetic tool does not determine tax liability, eligibility, exemptions or filing requirements.
Connect the calculation to your accounts
Store the applicable tax treatment with your item or service, then check it during invoice review. An approved invoice should carry the same values into your accounting workflow. Read our invoicing workflow guide for the handoff steps.
Amounts entered here are calculated in your browser and are not submitted by this tool.
MAKE IT PART OF YOUR WORKFLOW
A useful tool. A connected business.
Bring your customer, inventory and accounting workflows together. Tell us where the handoff gets difficult.
