John Kasperek, Jr., CPA


Managing Partner

John Kasperek, Jr. has worked in public accounting since June of 1979, after he earned his B.S. Degree in Accounting from Indiana University Northwest and subsequently successfully passed the CPA Exam in 1982. After working for three CPA firms, John started his own company in January of 1989 and incorporated his firm in 1995. He continues to lead his talented staff in all aspects of the business. 

John has provided hands-on governmental auditing and accounting services for over 35 years. He has performed audits under the Single Audit Act and OMB Uniform Guidance for school districts, townships and municipalities in the State of Illinois. He has also assisted municipalities in applying for federal grants under the U.S. Department of Health and Human Services, U.S. Department of Justice and the U.S. Department of Homeland Security. John has been active with numerous not-for-profit organizations and has aided their establishment, development and growth throughout the years.

John is a member of the American Institute of CPAs, Illinois CPA, treasurer of South Suburban College Foundation, treasurer of Calumet Memorial Park District, past president and member of the Calumet City Lions Club, and past president and member of the Calumet City Cavaliers. 

Additionally, John served as Finance Director for the City of Calumet City for 30 years with support from his firm. With his guidance and oversight, John Kasperek Co., Inc. provides a wide range of expert accounting and consultation services with a client-focused approach.

Contact John at This email address is being protected from spambots. You need JavaScript enabled to view it.


  • Our Clients

    Our Clients

    Our client list at John Kasperek Co., Inc. features a wide range of significant audit work including local governments, townships, school districts, municipal pension funds, not-for-profit organizations and common interest real estate associations. In addition, we also serve a variety of small business S-Corporations, Partnerships and individuals.

    We are happy to provide contact information for referrals upon request. Here is a sample of our client list.

  • Our Staff

    Our Staff

    Our team at John Kasperek Co., Inc., Certified Public Accountants is dedicated to providing quality, personalized financial guidance to local government, not-for-profit organizations, businesses, corporations and individuals.

    Managing Partner John Kasperek, Jr. has developed our team of professionals with an excellent working knowledge of the accounting principles and current standards to provide the highest level of excellence to our clients. Well known throughout Chicagoland area for his diverse expertise in all aspects of accounting, John has built a thriving company that serves the critical needs of the south suburban and northwest Indiana region.

    Please feel free to reach out to John or the rest of our team at John Kasperek Co., Inc. any time for answers to your questions. Email This email address is being protected from spambots. You need JavaScript enabled to view it. or call (708) 862-2262.

  • Our News

    Our News

    In order to better serve our clients, partners, friends and colleagues, John Kasperek Co., Inc. will issue a new monthly digital newsletter with relevant financial and accounting information, changes to auditing standards and procedures, news and announcements from our firm. Please email This email address is being protected from spambots. You need JavaScript enabled to view it. if you would like to be added to our digital newsletter distribution list.

    Additionally, we recently created an informative, consumer-focused accounting blog titled Your Friends that Count that is posted online at and is distributed through Facebook and LinkedIn.

    We will post press releases, announcements and stories from our firm to our Newsroom page.
  • Our Offices

    Our Offices

    John Kasperek Co., Inc.’s Corporate Office in Mokena is conveniently accessible from I-80 and Lagrange Road. JKC’s Calumet City Office is located near Torrence Avenue, I-80 and I-94. Our primary service area reaches throughout the Chicago Southland and Northwest Indiana region.

    We travel to our clients to provide services when and where they are needed.

    9980 190th Street, Unit A
    Mokena, IL 60448
    1471 Ring Road
    Calumet City, IL 60409
    (708) 862-2262
    This email address is being protected from spambots. You need JavaScript enabled to view it.