What? In order to get a refund, that means you have to overpaid what you owe. It's pretty simple. If you are not putting in enough, the fraudster cannot get a refund as you still owe. Like, where is the break down? They would have to know how much you have paid, and then file so many deductions that it'd probably trigger an audit. If you file that many audits not with an account signing off of them, I could only imagine that would trigger an audit as well. Then again, the IRS has been beaten so badly that they barely have enough employees to function.