Invoice Generator

An invoice is a request for payment listing what you sold, the amounts and when payment is due. This free invoice generator builds a clean invoice from your business and customer details, with automatic subtotal, discount, tax and total.

How to use the Invoice Generator

  1. Enter your business and customer details and invoice number.
  2. Add line items with quantity and price, then set tax and discount.
  3. Check the preview and download the PDF or print.

How it works

Totals use: Subtotal = Σ(quantity × unit price); Discount = Subtotal × %; Tax = (Subtotal − Discount) × %; Total = Subtotal − Discount + Tax. The live preview updates as you type; download a PDF or print directly.

Worked example

Two lines totalling 5,000 with 18% tax give an invoice total of 5,900.

Good to know

Your seller details are remembered in this browser only. No invoice data is uploaded.

Frequently asked questions

Yes, free with no sign-up or watermark.

A unique invoice number and clear payment terms help with bookkeeping and getting paid on time; requirements vary by country.

BillGen provides general-purpose tools; verify important outputs before relying on them.