1. Add the correct business and client details
Start with the legal or trading name you use for business, your contact details and any registration or tax identifiers that apply to you. Add the client’s correct billing name and address rather than relying on an informal project name.
- Confirm the client’s billing entity before sending.
- Use a consistent business name across invoices.
- Include applicable VAT or tax identifiers.
2. Give the invoice a unique number
Use a numbering system that makes each invoice easy to identify and retrieve. A simple sequence such as INV-2026-001 is usually clearer than a random filename. Keep the sequence consistent and do not silently reuse an old number.
3. Describe the work clearly
Line items should help someone who was not involved in the project understand the charge. Replace vague descriptions such as “services” with a specific deliverable, period or milestone. Add quantity and rate where they improve clarity.
4. Set issue, due and payment details
Show the invoice date and a specific due date. State the accepted payment method and include the information the client needs to pay. If a purchase order, project reference or client code is required, add it before sending.
5. Review totals before sending
Check currency, subtotal, discounts, VAT or other applicable tax, and the final amount due. Preview the PDF on both desktop and mobile so the client can read it without zooming or guessing which total is final.
6. Keep the invoice after sending
An invoice remains useful after it leaves your inbox. Store it against the client, record payments and keep notes about reminders. Invoice software makes that history easier to search than separate documents.