Compliance with the Corporate Transparency Act (CTA) in the U.S requires updating Beneficial Owner Information Reports with FinCEN. Single-member LLCs and closely held corporations may only need a one-time report, but multi-member LLCs and corporations with multiple shareholders must continually update their beneficial owner information to avoid penalties of $500 per day, up to $10,000. Changes in ownership, management, or personal details must be reported within 30 days.