Form 8300 – Is Your Business Filing the Proper Cash Transaction Forms? Has your business ever received a large cash payment, and you were not quite sure what your reporting obligations were regarding that large payment? The general rule is that you must file Form 8300, Report of Cash Payments Over $10,000 Received in a Trade or Business, if your business receives more than $10,000 in cash from one buyer as a result of a single transaction or two or more related transactions. The Form 8300 provides valuable information to the Internal Revenue Service and the Financial Crimes Enforcement Network (FinCEN) in their efforts to combat money laundering. This is an important effort, since money laundering is a tool used to facilitate various criminal activities, ranging from tax evasion to terrorist financing to drug dealing, to hide the proceeds from their illegal activities.