trustOur focused approach to an audit is to provide value in addition to rigorous assurance. What constitutes value is different in each case, and our approach is to customize our audit strategy to the unique needs of each client. The key features of our approach are:

Focus on Key Risks
The methodology is designed to more closely align our audit process with your underlying risks. It recognizes that by understanding your associated risks and their relationship to the inherent and control risk components of audit risk, we can develop more effective and efficient audit strategies, as well as provide timely communications to you.
Emphasis on Controls
We identify internal controls, including key performance indicators used by management, to determine whether processes meet their financial reporting objectives and the operating and compliance objectives that are relevant to the accuracy of the financial statements. Using a controls-based process approach, we evaluate and, when appropriate, test the effectiveness of internal controls and make a combined assessment of inherent and control risk for significant accounts and the related financial statement assertions.
Analytical and Data Analysis Procedures
With our increased knowledge of your institution and service area, and our greater focus on your identified risks, we utilize data analysis procedures to provide audit evidence from which we gain significant audit assurance or identify areas requiring further investigation.
Building and Sharing Knowledge
We share our knowledge by giving our engagement team access to the firm’s expertise through our knowledge databases. These assist us to access valuable engagement knowledge with respect to:

• Addressing significant accounting and auditing issues
• Developing solution-oriented services for you
• Understanding industry-specific issues
• Keeping up to date with current developments, both inside and outside the firm
We aim to provide a high quality service by creating a team with the skill and experience to tailor our methodology and apply our knowledge to your needs. Emphasis is placed on staff continuity and knowledge sharing within the team. 


  • 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.