How to Create a Professional Invoice
A practical checklist for preparing a clear invoice that a client can understand and a business can file.
In this guide
Start with the basics
An invoice should make it obvious who is charging, who is being charged, what was supplied and how much is due. Include the business or seller details, customer details, invoice date and a unique invoice number.
Describe the work clearly
Avoid vague lines such as “services” when you can be more specific. List the product or service, quantity or hours, rate and line total. A client should be able to look at the invoice and understand what they are paying for without calling you for an explanation.
Show the money clearly
Separate the subtotal from discounts, taxes or other charges where applicable, then show the final amount due. If you charge in a currency other than your normal business currency, make that clear too.
Add payment terms
State when payment is expected and how the customer can pay. If you have agreed a deposit, milestone or late-payment arrangement, make sure the invoice reflects the actual agreement.
Keep a copy
A professional invoice is also a business record. Keep your issued invoices in an organised system so you can reconcile payments and find the original document later. Tax and record-keeping requirements vary by country, so use the applicable local rules for your business.
Try the related tool
If you came here because you need to do the calculation or create something now, you can use the matching KingToolsKit tool and then come back to the guide when you want the explanation.
Open the tool →