Jason Gierhahn, <span class="title">CPA, CFE</span>

Jason Gierhahn, CPA, CFETax Manager

P 312.670.7444 | F 312.670.8301

As a manager in ORBA’s Tax Group, Jason Gierhahn offers strategic tax planning and technical advice to his tax clients, including social service agencies, associations, educational institutions and foundations, credit unions and banks, 401(k) plans, closely held businesses and individuals.

With nearly 20 years of experience, he is adept in preparing and managing financial statement audits, non-profit and corporate tax returns, state and local taxation issues, and assisting clients with their setup to become tax exempt and understanding taxation of flow-through entities, including S corporations.

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Firm News


ORBA’s Stephanie Zaleski-Braatz Appointed to Illinois CPA Society’s Board of Directors
CHICAGO — ORBA, one of Chicago ’s largest independent accounting, tax and consulting firms, is pleased to announce that Stephanie Zaleski-Braatz, CPA has been named to the Illinois CPA Society's (ICPAS) Board of Directors. She will serve in this role for a three-year term through March 2027.

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seminars & events


ORBA will gladly provide you with hard copies of the useful guides listed below. Select which guides you would like to receive and submit the form below.

  • Tax Pocket Guide
  • Tax Planning Guide
  • Records Retention Schedule
  • Auto, Travel & Business Log

request guide

Forward Thinking
Forward Thinking