Our Identity

Established in 1971, McMahon & Associates has been serving Northwest Indiana and Chicago’s South Suburbs to help them grow their business. McMahon & Associates is locally-owned and offers a unique blend of big firm services and small firm care. From advanced tax expertise, IRS representation, audits, business valuations, estate planning and succession planning to basic bookkeeping and payroll services, clients find the services they need for every stage of their business or every stage of life.

Terry McMahon, CPA
President/CEO, Shareholder
Karen McMahon, EA
Account Manager, Corporate Treasurer, Shareholder
Marisa Smoljan, CPA
Tax Department Chair, Corporate Secretary, Shareholder
Jolanta Moore, DBA, CPA
Accounting & Audit Department Chair, Shareholder

Let Our Team

Work for you

As your partner for growth, CPAs and EAs at McMahon & Associates offer over 40 years of experience. Our tax professionals will help you create a tax plan that will save you time and money. As the Region’s #1 Accounting Firm for the past 15 years, our clients know they can count on our professionals in the short and long term.