Invoices in a sentence. PDF in a click.

Billfinch is a free invoice generator with no sign-up. In ChatGPT, describe who you're billing and for what. It adds up the line items, discount, tax, and shipping to the cent and gives you a clean, professional PDF to download, print, or send.

Just describe it "Invoice Harbor & Pine for 32 hours of design at $95, plus a $2,400 logo, 8.25% tax, Net 30."

Math you can trust Line totals, discounts, tax on taxable lines, shipping, deposits, and balance due, rounded to the cent.

No account, nothing stored The PDF is rebuilt from the link itself. We don't keep your invoices or your clients' details.

See a sample invoice

Letter or A4, any currency (USD, EUR, GBP, CAD, AUD, INR, JPY, and more), with your own accent color, PO number, payment details, and notes.

Open the sample PDF

How it works

Add Billfinch in ChatGPT and ask for an invoice in plain words.
Check the invoice card: sender, Bill to, dates, line items, and totals.
Download the PDF, open it to print, or export the line items as a CSV. Ask for changes in the chat and get a fresh copy.

Guides

Free Invoice TemplateA free invoice template you can follow or generate as a PDF: sender, client, invoice number, dates, line items, discount, tax, and balance due. No sign-up.How to Write an InvoiceHow to write an invoice that gets paid: required fields, numbering, payment terms, line items, tax, and a worked example with a 5% discount and 8.25% tax.Freelancer InvoiceHow to invoice as a freelancer: hourly and fixed-fee lines, tax, Net 30 terms, and a worked example for 32 hours at $95 plus a $2,400 deliverable.Contractor InvoiceHow to write a contractor invoice: labor and materials lines, tax on materials, progress billing against a contract, and a clear balance due.

Invoices in a sentence. PDF in a click.

See a sample invoice

How it works

Guides

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