Even as their office struggled with a large budget deficit, managers in the technology office of the Department of Veterans Affairs awarded $24 million in bonuses to thousands of employees in 2007 and 2008, according to a new investigative report.

The report, by the department’s Office of Inspector General, concluded that the managers “were not fiscally responsible in administering awards” and that one senior manager in particular, Jennifer S. Duncan, “acted as if she was given a blank checkbook to write unlimited monetary awards.”

The report was one of two sharply critical reviews of the department’s Office of Information and Technology that were issued this week by the inspector general. The reports document evidence of widespread nepotism, abuse of authority and improper hiring under a former assistant secretary, Robert Howard.

The investigators found that Mr. Howard, who left the department in January, had “an inappropriate relationship” with one of his subordinates, Katherine Adair Martinez, who remains a deputy assistant secretary. Ms. Martinez is also accused in one report of abusing her position to help a friend get a job and to transfer her own job to Florida, even though she spent 60 percent of her time in Washington.