You finished the work, the client is happy, and now comes the part nobody teaches you: asking for the money. A good first invoice does two things — it makes you look like you've done this a hundred times, and it removes every possible excuse for a delayed payment. Here's exactly what to put on it.
What every invoice must include
- Your details — your name (or business name), address, and email. If you're tax-registered, include your tax ID; many clients' finance teams won't process an invoice without it.
- The client's details — the legal name of the business paying you, not just your contact's first name. Ask your contact who the invoice should be addressed to; large companies often need a specific entity name.
- An invoice number — unique and sequential (more on this below).
- Issue date and due date — "whenever you get a chance" is not a due date. Fourteen days is a common default for freelance work.
- Line items — what you did, quantity, rate, and the amount. Specific descriptions get paid faster because nobody has to email you asking what "design work" means.
- The total — with tax broken out separately if you charge it.
- Payment instructions — how, exactly, should they pay you? Bank details, a payment link, or "reply and I'll send an ACH request" — anything is better than silence. Put it in the terms field.
Pick a numbering scheme you won't regret
Start with INV-001 and count up, or use a year-prefixed scheme like INV-2026-001 if you like a clean slate each January. Two rules: never reuse a number (accountants and tax authorities both care), and don't start at INV-001 if it bothers you to look new — plenty of freelancers start at INV-100.
A complete first invoice
Here's a realistic example for a freelance designer billing a small business for a branding project:
Example: Maya's first invoice — $1,400 branding project
Maya Torres billed Juniper Coffee Co. three fixed-price line items: logo design ($900), business cards ($250), and a one-page brand guide ($250). Invoice INV-001, due in 14 days, with payment instructions and a delivery note in the terms. Click below to open this exact invoice in the editor and swap in your own details.
Mistakes that delay your payment
- Sending it to the wrong person. Your day-to-day contact often isn't the one who pays. Ask "should I send the invoice to you or to accounts?" — one sentence that saves two weeks.
- Vague line items. "Consulting — $1,400" invites questions. Three specific lines that add to $1,400 don't.
- No due date. Without one, your invoice enters the "eventually" pile.
- Making them ask how to pay. Every extra email round-trip adds days.
- Sending an editable file. Send a PDF, not a Word or Excel file — it looks final because it is.
When to send, and what to say
Send the invoice the same day the work is delivered — attaching it to the delivery email is ideal, because that's the moment your work has maximum perceived value. The email itself can be two sentences: "Thanks again for the project — final files are attached. I've also attached invoice INV-001 for $1,400, due September 24."
If the due date passes, follow up on day one — politely and without apology. Most late payments are forgetfulness, not malice, and a prompt nudge trains clients that your invoices don't drift.
Ready to send yours? Create a freelance invoice free — no signup, and the PDF downloads in seconds. For what to write in the terms field, see our guide to invoice payment terms with examples.