How to Invoice a Client

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Getting paid reliably is less about the invoice itself and more about what happens before and after you send it. Here's the process, start to finish.

1. Agree on Scope Before You Start

Most payment disputes trace back to a mismatch between what the client expected and what they're being billed for. A short written proposal or estimate — even a few lines — that lists the work and the price, sent and agreed to before you start, heads this off. It also becomes the reference point if scope creeps.

2. Decide When You'll Invoice

For a short project, invoice on completion. For anything longer than a couple of weeks, invoice in stages — e.g. 50% up front, 50% on delivery, or monthly for ongoing work. Waiting until a large project is entirely finished to send a single invoice is the single biggest cause of cash-flow stress for freelancers and small shops.

3. Include Everything the Client Needs to Pay You

Your name/business, the client's name, a unique invoice number, the date, a due date or payment terms, an itemized breakdown of the work, the total, and how you accept payment. See the invoice template guide for a full example.

4. Set Clear Payment Terms

"Net 14" or "Net 30" (payment due 14 or 30 days after the invoice date) is standard. For new clients, shorter terms (or a deposit) reduce risk. State the term on the invoice itself — don't leave it implied.

5. Send It Promptly

Invoice as soon as the work (or milestone) is done. Delaying an invoice delays payment by the same amount — clients rarely pay early relative to when they receive it.

6. Follow Up on Late Payments

A friendly reminder a few days after the due date resolves most late payments — it's usually an oversight, not a refusal. Keep a record of what's been paid against each invoice so you know exactly who owes what without having to reconstruct it from memory or email threads.

7. Keep Records

Save every invoice and note every payment against it, even the small ones. This matters for your own cash-flow picture, for resolving any "did I pay that?" disputes, and at tax time.