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Free GST arithmetic

GST Calculator

Add GST to a base amount using common Indian GST rates.

GST amount = Base × GST %. Total = Base + GST. The chips for 0, 5, 12, 18 and 28% are common Indian GST rates, not a statement of how insurance is taxed.

Inputs

Up to ₹99,99,99,999

0–100%

Estimate

Arithmetic only. Confirm the GST rate that applies to your invoice with a tax advisor.

GST amount
₹1,800.00
Total amount
₹11,800.00

Keep the numbers. InsuOrg does not replace GST filing software. History stays in this browser.

What this tool does

Use this when you need a quick GST add-on for a fee, invoice line or internal estimate. Confirm the correct rate for the actual supply with your tax advisor.

Formula

GST = Base amount × (GST % ÷ 100). Total payable = Base + GST.

Example

Base ₹10,000 at 18%: GST ₹1,800, total ₹11,800.

How to use it

Enter the fields, run the estimate or copy the wording, then paste into WhatsApp, email or a worksheet. This marketing site does not keep a server-side file. This browser can keep a short local history. Saving onto a policy, commission or renewal in the product requires an InsuOrg workspace.

Limitations

This tool does not encode insurance-specific GST exemptions, reverse charge or composition rules. It will not file returns.

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InsuOrg product — the workspace these tools point toward.

Questions

Which GST rate should insurance brokers use?

It depends on the supply. This calculator does not hardcode an insurance GST position. Pick the rate that applies to that invoice.

Is 18% the official insurance GST rate here?

No. 18% is only a common shortcut chip. You can type any rate.

Need the desk, not only the calculator?

12-minute walkthrough: Overview → one file → My Day.

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