What is non trade invoice?

A non-trade invoice is a billing document used for transactions that do not involve the exchange of goods or services typically associated with trade. It may be issued for various purposes, such as charging for fees, penalties, or reimbursements. Unlike trade invoices, which detail the sale of products, non-trade invoices usually focus on financial obligations outside of regular business transactions. Examples include invoices for consulting fees, service charges, or membership dues.