What Should an Invoice Include?

Header and identification

The document should be labeled Invoice. Include a unique invoice number, invoice date, and due date. If you reference a purchase order, quote, or project ID, add it near the invoice number.

Seller and buyer details

Show your legal business name, address, email, and phone. Include VAT, GST, or tax ID when registered. The buyer section needs the customer legal name and full billing address, not only a contact person name.

Line items and amounts

List each product or service with quantity, unit price, and line total. Show subtotal, any discount, tax lines with rates, shipping if applicable, and total amount due in the stated currency.

Payment instructions

Tell the customer how to pay: bank name, account holder, account number, IBAN, SWIFT, or payment link. Ask them to use the invoice number as the payment reference so you can match incoming transfers.

How to create your invoice

1. 1. Add business details

   Enter your company name, address, and logo. These appear at the top of the invoice.

2. 2. Add customer and line items

   Describe what you sold or the what should an invoice include? services provided. Include quantity, rate, and tax where applicable.

3. 3. Download your PDF

   Review the preview, then download a print-ready PDF to email or send to your customer.

Features

• Unique invoice number
• Invoice and due dates
• Seller and buyer legal details
• Itemized line items
• Tax shown separately
• Total amount and currency
• Payment terms and methods

Common mistakes to avoid

• Missing invoice number or date, which makes tracking payments harder.
• Unclear line item descriptions that do not match what the customer expected.
• Forgetting payment terms or bank details, which delays payment.
• Incorrect tax treatment for your customer location or service type.