An agreed-upon procedures is an engagement in which an auditor is engaged to carry out those procedures of an audit nature to which the auditor and the entity and any appropriate third parties have agreed and to report on factual findings. The recipients of the report form their own conclusions from the report by the auditor.

An agreed-upon procedures are not assurance engagements and are covered by International Standards on Related Services (ISRS).

An engagement to perform agreed-upon procedures may involve the auditor to performing certain procedures concerning individual items of financial data (for example, accounts payable, accounts receivable, purchases from related parties and sales and profits of a segment of an entity), a financial statement (for example, a balance sheet) or even a complete set of financial statements.