How to invoice as a freelancer

Everything a working freelancer needs to know about getting paid: what belongs on the invoice, how to number and time it, and the habits that make clients pay on time.

The seven things every invoice needs

Wherever you are and whatever you do, a professional invoice carries: your identity (name or business name, address, email, tax ID if registered), the client's identity, a unique sequential number, an issue date and a due date, line items with quantity and rate, the total (with any tax shown separately), and how to pay you. Miss the last one and you've added a round-trip email to every payment.

Numbering that survives an audit

Pick a scheme and never break it: INV-2026-001, incremented by one, no gaps, no reuse — even for cancelled invoices (issue a credit note instead of deleting). Sequential numbering is a legal requirement in much of the world and a sanity requirement everywhere else. Your future accountant will meet you through these numbers; be kind to them.

Payment terms that actually work

Fourteen days is the freelance default; thirty is standard with corporates, whose accounts-payable runs are monthly anyway. Whatever you choose, the due date goes on the invoice as a date, not just "Net 14" — dates are enforceable and unambiguous. Two habits speed payment more than any wording: invoice immediately on delivery, and make paying one step (full bank details or a payment link in the notes).

Describe outcomes, not activity

The person approving your invoice is often not the person you worked with. "Landing page copy — 4 pages, 2 revision rounds" sails through approval; "professional services" gets queried. Split different rates onto different lines, reference the quote or purchase order if one exists, and keep each line self-explanatory.

Tax, briefly

If you're VAT/GST/sales-tax registered, show the tax as its own line with the rate, and include your tax ID and usually the client's. Cross-border B2B services within the EU typically reverse-charge — the invoice then needs both VAT IDs and a "VAT reverse charged" note. The rules are jurisdiction-specific; a one-hour session with a local accountant when you start freelancing pays for itself many times over.

Getting paid on time

Late payment is mostly a systems problem. Invoice the day you deliver. Remind the day after the due date — briefly, warmly, with the invoice reattached. For new or large clients, take a deposit (25–50%) before starting; it filters out the clients who were never going to pay and funds the work of everyone else. And keep every invoice as a PDF in one folder: the years pass faster than you think.

Common questions