The trust fund recovery penalty is the IRS's sharpest collection tool, and most people who get hit by it never saw it coming. When a business fails to pay over withheld payroll taxes, Section 6672 lets the government assess the entire trust fund portion — personally — against anyone who was a responsible person who willfully failed to pay. Owners, officers, bookkeepers, sometimes outside accountants. The business's debt becomes your debt, dollar for dollar.
The Two Words That Decide Everything
Responsible means you had the status, duty, and authority to direct payments — signature authority, control over which bills got paid, a real voice in the money. Willful doesn't mean malicious; it means you knew the taxes were due and paid someone else instead. The IRS reads both words as broadly as it can, sweeping in people whose titles outran their actual control. That's where these cases are won: the office manager who signed checks only as directed, the investor who never touched operations, the officer who discovered the problem after the money was already gone.
The Interview Is the Battlefield
The penalty case is built in the Form 4180 interview — a Revenue Officer walking you through questions engineered to establish responsibility and willfulness from your own mouth. Sitting for that interview alone is how cooperative, honest people assess themselves. You have the right to representation in that room, and the answers need to be true, precise, and no wider than the questions.
If you're one of several people exposed, understand: the IRS asserts against everyone and collects from whoever's easiest. Being the most solvent person in the room is its own kind of risk. Get counsel before the interview, not after.