Federal employees owe a total of $3.3 billion in back taxes to the federal government, according to Internal Revenue Service data released Thursday.

In all, 318,462 federal employees owed back taxes as of last Sept. 30 — an increase of 2.6% from the previous year. (snip)

The highest rates of tax delinquency are at small federal agencies dealing with civil rights and the disabled: The National Council on Disability (11.54%), the Committee for Purchase from People Who Are Blind (10%) and the Civil Rights Commission (9.52%).

Outside the Treasury Department, the most conscientious taxpayers are active-duty military personnel, who have a delinquency rate of just 1.7%.