@jgwonkim, this is a fantastic and concise breakdown of the criteria and tax implications for small domestic corporations engaged in real estate rental and related activities! Your clear explanation of the ownership threshold, revenue composition, and employee count requirements makes this complex topic easily digestible. Highlighting the specific limitations on business entertainment expenses, vehicle costs, and the hefty penalty for non-compliance regarding the mandatory audit report is crucial information for business owners. The upcoming tax rate adjustment is also an important detail. Thank you for providing this valuable resource to the Steemit community! I'm sure many will find this incredibly useful. What are some common pitfalls you see small businesses making in this area?