What Should Be Included on an Invoice?
Identity: who is billing whom
An invoice begins with two parties. Your details — business name, address, email, phone, and tax or VAT number if you have one — establish who is owed. The client's details do the same in reverse and make the document valid for their bookkeeping. Getting names and addresses exactly right matters: many businesses cannot process an invoice that does not match the entity on their purchase order.
Reference: numbers and dates
A unique invoice number lets both sides reference the document unambiguously, and it is usually required for tax records. The issue date marks when the invoice was created; the due date sets the payment deadline. Together they drive everything from reminders to late-fee calculations.
Money: items, tax, and totals
The heart of the invoice is the itemized list: each product or service with a description, quantity, and unit price. From there the subtotal, any discount, the tax line, and any shipping or fees combine into the grand total. If a payment has already been made, show it and the remaining balance.
Terms and payment details
Payment terms tell the client when payment is expected. Payment details tell them how to pay. A notes field is useful for project specifics, and a footer is the place for a thank-you or a short late-payment policy. None of these are decorative — each one removes a reason for an invoice to stall.