
Commingling Personal and Business Funds: How One Bad Habit Kills Deductions, Invites Audits, and Pierces Your LLC Shield
Mixing personal and business money in one account can void your LLC's liability shield, get legitimate deductions disallowed for lack of substantiation under IRC Section 162, and turn a routine audit into a full transaction pull. Here's what commingling looks like, why courts and the IRS punish it, and a five-step cleanup plan.










