KXAN (AUSTIN) -- President Donald Trump signed a series of executive orders following his inauguration on Monday, including a freeze on hiring federal workers except for positions related to immigration enforcement, national security and public safety.  Trump also ordered the Office of Management and Budget, OMB, to submit a plan to reduce the size of the federal workforce before mid-April.  The Internal Revenue Service (IRS) is included in the agencies that would not be able to bring in new employees. The federal government’s official employment site, USAJOBS, shows the IRS has hundreds of vacancies it had been looking to fill. Many of those vacancies are based in Texas, but the agency could not provide a count as to how many. The ACLU is making plans to fight Trump’s promises of immigrant raids and mass deportations The president's executive order is expected to last at least 90 days for all federal agencies, except the IRS. Trump ordered the freeze to remain in effect for the IRS until the Treasury Secretary determines it is of national interest to lift the order.  The president's “America First Priorities” list provides some insight into why he ordered the freeze. In the list posted on Jan. 20, his office wrote “[Trump] will freeze bureaucrat hiring except in essential areas to end the onslaught of useless and overpaid DEI activists buried in the federal workforce.” U.S. Rep. Lloyd Doggett, D-Austin, believes the order will further harm the IRS, which - according to the 2025 National Taxpayer Advocate report – is already struggling with processing delays for returns and identity theft victims. READ: Trump signs multiple executive orders on first day “The effort being made right at the time that tax season is about upon us will mean that tax refunds arrive late, that tax processing is slow, that government loses revenue,” Doggett said. The National Taxpayer Advocate, which is an independent organization within the IRS, also found continuing challenges with employee recruitment, hiring, and retention is one of the most serious problems facing the agency. “I think the real goal here is to protect tax cheats. There's been a steady reduction in the funding for tax enforcement, and so some of the most wealthy people in the country avoid paying their fair share of taxes, and the burden shifts to working families and small businesses,” Doggett added. KXAN reached out to the White House for comment but has not heard back.