Business & Sales

What Is an Invoice?

An invoice is a document a seller sends to a buyer requesting payment for goods or services provided. It typically lists the seller and buyer, an invoice number and date, a description of items or services, quantities, prices, taxes, the total due, and the payment terms and due date.

Invoice vs. Receipt

An invoice requests payment; a receipt confirms that payment has been received.

Common Invoice Details

Besides the amount due, invoices often include a purchase order reference, the tax registration number where required, accepted payment methods, and bank details. Numbering invoices sequentially makes them easier to track for accounting and tax records.

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Last updated: September 27, 2026. This definition is for general educational purposes only. It is not financial, investment, tax, legal, or medical advice, and it does not recommend any product or course of action. For decisions about your own situation, consult a qualified professional.