A forthcoming federal watchdog report is expected to detail "excessive spending" by the Internal Revenue Service on conferences, a congressional committee announced Friday.

Remember that GSA conference hosted in Las Vegas? Word is the IRS might have done something similar. (Ethan Miller/Associated Press)

The House Oversight and Government Reform Committee is scheduled to hold a hearing on Thursday to hear details of the report by the Treasury Inspector General for Tax Administration, the same entity that confirmed accusations that the IRS's tax-exempt unit had been unfairly targeting certain groups seeking tax-exempt status.

The committee, in its official announcement, on Friday said the hearing will focus on "an upcoming audit uncovering information about excessive spending at IRS conferences."

The announcement did not say who is scheduled to testify.

Spending on conferences paid for and hosted by federal agencies has been an especially sensitive topic since a similar watchdog report revealed last year that the General Services Administration spent upward of $800,000 on a regional conference and awards ceremony in Las Vegas for employees.

The report sparked outrage on Capitol Hill and the White House and led to the removal of the GSA administrator and other senior officials, a situation not unlike the scandal that has unfolded at the IRS in recent weeks.

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