Free Invoice Generator with Calculated Totals

Create a formatted invoice from seller, buyer and line-item details. Calculate subtotal, discount, tax and total online without an account or AI key.

Free · No AI API key required

How to use this tool

Prepare a readable invoice with line-item calculations, a percentage discount and a flat tax rate. The tool calculates totals from the numbers you supply and returns a formatted text document.

  1. Enter the invoice number, seller, buyer and due date.
  2. Add items as a JSON array with description, qty and unitPrice. Set discount and tax percentages if needed.
  3. Generate the invoice, verify the figures and details, then copy or download the result.

Example to try

[{"description":"Design","qty":2,"unitPrice":500}]

Supported use and limits

The output is a formatted text document, not an accounting system or a dedicated PDF export. Tax is a flat percentage; jurisdiction-specific invoice requirements are not checked.

Can I use multiple currencies or tax rates in one invoice?

Use one consistent currency and one flat tax percentage per document. The tool does not perform currency conversion or calculate different tax rules for individual items.

Free to use without an account. Submitted input is processed on our server. How Sarvam Tools works.