“As if asking for a budget increase while still awarding bonuses to IRS employees that owe back taxes wasn’t rich enough, today we learn the IRS spent federal funds to rehire those with known, and often serious, employment problems,” Senate Finance Committee Chairman Orrin Hatch (R-Utah) said in a statement.

“IRS employees must be held to high standards to ensure that taxpayers are protected, and there is no reason to hire employees who have already failed to uphold those expectations. Sadly, such double standards often fall on the backs of hard-working taxpayers.”

In all, the inspector general found that more than one in 10 of the employees that the IRS rehired between January 2010 and September 2013 — 824 of 7,168 — had prior employment issues. Of those, 141 had documented tax problems.