How to write an invoice (7 simple steps)
Updated June 2026
An invoice is a document that tells a client what they owe, for what, and how to pay. Here's exactly what to include — or skip the manual work and use the free invoice generator that builds it for you and exports a PDF in seconds.
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Make an invoice free →What every invoice needs
1A header that says "Invoice" + a unique invoice number. The number keeps your records organized — simple sequential (001, 002) or dated (2026-06-001) both work.
2Your business details. Name, address, email, phone — and your logo if you have one. Freelancers can use their full name.
3Your client's details ("Bill to"). Their name/company and, importantly, an email — that's who you'll send reminders to if it goes unpaid.
4Issue date and due date. Always set a clear due date (e.g. "Due July 1" or "Net 14"). Vague dates get paid late. See payment terms explained.
5Itemized line items. A row per service/product: description, quantity, rate, and amount. Be specific — clear invoices get questioned less.
6Subtotal, tax, and total due. Show the math so there are no surprises. Bold the total.
7How to pay + a note. List accepted payment methods (and ideally a payment link), plus a short thank-you or terms line.
After you send it: get paid
Writing the invoice is the easy part — the hard part is collecting. Most businesses lose money not because the invoice was wrong, but because nobody followed up. Track what's overdue and send polite reminders on a consistent schedule. Here are reminder templates and how to ask politely.
Tips for a faster-paying invoice
- Invoice immediately after the work — the longer you wait, the colder the payment.
- Use short terms (Net 7–14) instead of Net 30 to get paid weeks sooner.
- Include a payment link, not just a PDF — make paying one click.
- Number every invoice so you (and your client) can reference it easily.