What to include in a freelance invoice
- Name matching your W-9. Your own name or your LLC, exactly as on the W-9 you gave the client, so their payment records and any 1099 reporting line up.
- Client PO or project code. The purchase order, project code or contact name the client gave you, because accounts teams route contractor invoices by that reference.
- Hours by date or week. Hours per task or per week with the rate shown separately, so the client can match them against timesheets or tracked time.
- Milestone delivered. Which milestone or deliverable this invoice covers and when it was approved, so the client pays the stage they actually signed off.
- Expenses with receipts. Travel, software or materials paid on the client's behalf, at cost with receipts attached, kept apart from the fee for your time.
- Retainer period covered. For retainer clients, the month or date range the fee covers and any hours used beyond the included block, billed on their own line.
- Contract or SOW reference. The statement of work or contract date the invoice bills against, so rates and scope trace back to what both sides signed.




