Profile
Our History
Our firm was originally established as “O’Rourke Tax Service, Inc.” in 1989. Since its inception, the firm has grown considerably and has a long history of providing exceptional tax and accounting services to our clients. The firm’s growth can be attributed to the trust our clients have in us, many of whom have continued to refer us to their friends and family.
A New Chapter
On January 1st, 2025, after 35 years of serving clients, O’Rourke Tax Service, Inc. was sold to Koehler CPA LLC. Although ownership has changed, we continue to operate under the O’Rourke Tax Service name and remain dedicated to providing the highest level of service to our clients.
Cory Koehler, CPA
Cory is the Managing Member of O’Rourke Tax Service. He graduated summa cum laude from Marian University of Fond du Lac, where he received two Bachelor’s of Business Administration degrees in Finance and Accounting. Cory is licensed by the State of Wisconsin as a Certified Public Accountant (CPA) and is a member of the American Institute of Certified Public Accountants (AICPA). As a licensed professional, he is able to practice before the IRS and represent clients on tax matters. Well equipped to handle most situations, Cory specializes in small business tax and related accounting services. Contact Cory at:
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Steven F. O’Rourke, EA | Senior Tax Preparer
Steve is the former President of O’Rourke Tax Service, Inc. and continues to serve many of his previous clients. Steve has a Bachelors of Business Administration degree in Accounting from the University of Wisconsin, Oshkosh. He has over 40 years of experience in tax planning and preparation. He is an Enrolled Agent, licensed to practice before the IRS. Steve has taught nationwide tax seminars for the National Association of Tax Professionals (NATP) for the past 35 years, and recently for Back to Basics Income Tax Seminars. Contact Steve via email at:
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Charles Kohls, EA | Senior Tax Preparer
Chuck has been with O’Rourke Tax Service since its inception in 1989. He has a Bachelors of Business Administration degree in Finance from the University of Wisconsin, Oshkosh. He is an Enrolled Agent licensed to practice before the IRS. Chuck has over 35 years experience in income tax preparation. Contact Chuck at:
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Tami Kohls | Senior Tax Preparer
Tami has been with the O’Rourke Tax Service team and preparing tax returns for over 20 years. Tami is experienced with individual tax returns and is knowledgeable in rental activities. Contact Tami at:
Dylan Coakley | Tax Preparer
Dylan has been a part of the O’Rourke Tax Service team since 2023 and holds an Associates degree in Accounting from Fox Valley Technical College (FVTC). Dylan prepares several hundred tax returns each year and also provides accounting and payroll services to many of our business clients year-round. Contact Dylan at:
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Julie Kunde | Office Manager
Julie has been a part of the O’Rourke Tax Service team since 2021. Julie helps with the daily operations of O’Rourke Tax Service and helps manage schedules, systems, and client relations. She is dedicated to creating a welcoming environment for our clients. Contact Julie at:
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