said by IowaCowboy:Have them audited by the IRS. If the rest of us cheat on our taxes, the IRS comes knocking at the door.
Public corporations are audited regularly by independent and internal auditors and the results certified to the SEC. Very few of 'the rest of us' could withstand that kind of scrutiny. I've spoken with many people that work in tax departments of large coporations and they are in regular contact with the IRS.