Pat Haas

Areas of Expertise

  • International Organization Employee Taxation


  • CPA, Licensed in Maryland


  • BA, Economics, University of North Carolina at Chapel Hill
  • Graduate Courses in Economics, Duke University

Languages Spoken

  • English

Pat Haas

Senior Tax Specialist

Pat is a CPA and Senior Tax Specialist at The Wolf Group, with more than 30 years of experience in individual and expatriate taxation. She is an expert in international organization taxation, including tax policies and practices at The World Bank and International Monetary Fund.

Prior to joining The Wolf Group in 2009, Pat worked within The World Bank’s internal tax department for 13 years, advising international organization employees and retirees on their tax treatments, allowances, reimbursements, and tax options after retirement. She also led Bank seminars, such as The World Bank on Overseas Assignment and Income Tax Matters.

Over the years, Pat has worked with employees and retirees of a wide variety of international organizations, including the World Bank (IBRD), International Monetary Fund (IMF), Inter-American Development Bank (IDB), United Nations (UN), Asian Development Bank (ADB), Organisation for Economic Cooperation and Development (OECD), Pan-American Health Organization (PAHO), and International Food Policy Research Institute (IFPRI).

As a result, Pat is well-versed in the nuances of international organization taxation, including the treatment of U.S. citizens, green card holders, G-4 and G-5 visa holders, contractors, employees, and retirees, for a wide variety of organizations.

When not at work, Pat enjoys traveling, plays, and cooking.