The main purpose of the FinCEN Oversight and Accountability Act of 2025 is to enhance the operations and transparency of the Financial Crimes Enforcement Network (FinCEN). This legislation aims to ensure that Congress is well-informed about FinCEN's activities and to improve accountability within the agency. Key provisions of the Act include several measures designed to increase oversight and transparency. First, the Secretary of the Treasury is required to keep Congress updated on FinCEN's activities, especially any unlawful actions and the corrective measures taken.