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The Hack CPA S.C. Management Team

Established in 1998 by John Hack, we've grown to a firm consisting of six accounting professionals, all ready to serve you and help you fulfill your plans, goals and dreams.

Your success is our success, and all of us here at Hack CPA, S.C. look forward to working together with you to achieving the bright financial future you deserve!

Our Team

John J. Hack

Certified Public Accountant

John is a Certified Public Accountant with 20 years experience in large regional accounting firms. John started his accounting practice in 1998 so he could concentrate on the tax and accounting issues of closely held companies.

In addition to providing traditional tax and accounting services, John also assists companies in the following financial areas:

- Purchase and sale of a business
- Controllership services for companies that are not large enough to afford a full-time Chief Financial Officer
- Tax audits and tax litigation
- Tax research in areas such as federal income tax, Wisconsin income tax and Wisconsin sales tax.
- Business planning and budgeting

John received his Bachelor of Business Administration with a major in Accounting from the University of Wisconsin-Madison. He is a member of both the American Institute of Certified Public Accountants and the Wisconsin Institute of Certified Public Accountants.

John is available to assist you or your company. You can contact him by either telephone or email.

Debra A. Sibley, EA, MAFM

Enrolled Agent

Deb is a Manager at Hack CPA, S.C. with over 10 years of public accounting experience. Deb provides accounting & tax services to small businesses. As an Enrolled Agent, Deb is licensed to represent clients before the IRS.

In addition to providing traditional tax and accounting services, Deb specializes in the following areas:

-New business set ups
-Corporate and partnership tax
-Fiduciary estate and trust tax
-QuickBooks accounting support as a QuickBooks Pro Advisor for both Desktop and Online applications.

Deb received an Associate Degree in Marketing from Moraine Park Technical College, a Bachelor of Science Degree in Accounting from Upper Iowa University and a Masters Degree in Accounting & Financial Management from Keller Graduate School of Management .

Deb is a member of both the American Institute of Certified Public Accountants and the Wisconsin Institute of Public Accountants.