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Areas of Expertise

  • Gift, trust and estate taxation
  • US resident taxation
  • US nonresident taxation
  • International organization taxation
  • Tax research and advisory


  • IRS Enrollment Agent


  • MS, Taxation, University of Albany
  • BS, Accounting, University of Albany

Languages Spoken

  • English

Christina Kosier

Tax Supervisor

Christina is a Tax Supervisor at The Wolf Group with 13 years of experience in the Financial Services industry. At the Wolf Group, she:

  • Researches and advises clients on a range of gift, trust, and estate tax matters
  • Prepares tax returns for fiduciaries (trusts and estates), high-net-worth individuals, and family groups
  • Provides specialized tax services to clients with international concerns, including expatriates, inpatriates, and high-net-worth individuals with global assets, as well as international organization employees and retirees.

Before joining the Wolf Group, Christina worked in Goldman Sachs’s Gift, Trust, and Estate divisions. She provided trust and estate planning services and reporting guidance to financial managers in support of their clients’ tax matters. She also reviewed trust documents and prepared and reviewed gift tax returns, trust returns, and estate returns for Goldman Sachs/AYCO clients. Christina also previously worked in a mid-sized public accounting firm in New York, preparing individual, business, and fiduciary tax returns and conducting tax research.