How to Make an Invoice (Free Generator, No Sign-Up)

First freelance gig, side-hustle sale, or small-business job — at some point someone says "just invoice me," and you need a document that looks professional and gets you paid. Here's exactly what goes on an invoice, and a free invoice generator that turns it into a clean PDF in about two minutes.

What every invoice must include

• The word "Invoice" and a unique invoice number (e.g. INV-001) — sequential numbers keep your bookkeeping and taxes sane.
• Your details — name or business name, address, email/phone.
• Client's details — who is being billed.
• Issue date and due date — "Net 30" means due 30 days after issue; shorter terms get you paid faster.
• Line items — description, quantity, unit price, and line total for each product or service.
• Subtotal, tax, and total due — with the tax rate shown. Unsure of the tax math? The Sales Tax Calculator handles GST/HST/VAT at any rate.
• Payment instructions — bank transfer details, PayPal, or however you accept money, plus any late-fee policy.

Make it in two minutes, free

Skip the Word template wrestling. The Invoice Generator lets you fill in your details, add line items with automatic totals and tax, and download a professional PDF — no account, no watermark, and nothing uploaded (it's generated entirely in your browser, so client data stays private).

Numbering and organizing invoices

Pick a scheme and stick to it: INV-2026-001 works for most. Keep a simple spreadsheet of number, client, amount, and status — future-you at tax time will be grateful. If you invoice the same client repeatedly, duplicate the previous invoice and bump the number and dates.

Getting paid on time

• Invoice immediately — every day you delay sending is a day added to payment.
• Short terms — Net 14 or even "due on receipt" is normal for freelancers.
• Follow up politely the day after the due date — our AI Email Writer drafts a firm-but-friendly payment reminder in seconds.
• Look professional end-to-end — a consistent email signature on the message carrying your invoice doesn't hurt.

Do you need to charge tax?

Depends on your jurisdiction, registration status, and what you sell — many freelancers below a revenue threshold don't charge sales tax at all. Check your local rules (in Canada, for example, GST/HST registration is required past $30,000 in revenue). When in doubt, ask an accountant; the invoice generator supports any rate including 0%.