Business Details
37 Years
experience
Trusted Accounting & Audit Services in Mokena, IL
Founded in 1989, John Kasperek Co has established itself as a trusted provider of accounting, auditing, and consulting services for governmental entities, nonprofits, businesses, and individuals across the Chicago Southland and Northwest Indiana regions. Our team of Certified Public Accountants and professionals brings decades of combined experience in municipal and educational auditing, budget preparation, tax compliance, and internal control systems. Recognized as a Level 3 auditor by the Illinois Office of the Auditor Generalthe highest certificationwe maintain rigorous quality standards through triennial peer reviews with zero deficiencies.Our client-centric approach combines hands-on service with advanced data security measures, including secure file sharing protocols to protect sensitive information. We specialize in customized solutions for labor union contract negotiations, economic incentive agreements, fraud risk assessments, and grant accounting, while offering year-round support for payroll, sales tax, and business startup needs. Our commitment to excellence is demonstrated through our long-standing client relationships and our role as trusted advisors in both public and private sectors.
Services
Auditing
Tax Preparation
Governmental Consulting
Payroll Services
Peer Review
Details
- Year established: 1989
Highlights and features
- We offer 35+ years of specialized expertise in governmental and nonprofit accounting.
- Our team holds Level 3 auditor certification from the Illinois Office of the Auditor General.
- We implement secure file sharing systems for client data protection.
- Our peer-reviewed quality control processes maintain zero deficiencies since 2025.
- We provide customized solutions for municipal budgeting and labor negotiations.
Associations and certifications
- ISO 9001
- Illinois Office of the Auditor General Level 3 Auditor
Services
Governmental Auditing
Our specialized auditing services for local governments include compliance reviews, financial statement audits, and internal control assessments. We help municipalities meet regulatory requirements while identifying operational efficiencies. Our team's expertise in public sector accounting ensures accurate reporting and adherence to GASB standards.
Tax Preparation
We provide comprehensive tax preparation services for individuals, S-Corporations, and partnerships. Our CPAs stay current with federal and state tax code changes to maximize deductions while ensuring compliance. Clients receive personalized guidance through in-person consultations or secure electronic document exchange.
Payroll Services
Our payroll solutions include tax withholding calculations, regulatory filings, and year-end reporting. We handle federal and state payroll tax returns while maintaining compliance with changing labor laws. Clients benefit from accurate, timely processing integrated with their accounting systems.
Budget Consulting
We assist municipalities with budget preparation, real estate tax levy planning, and grant accounting. Our consultants analyze revenue streams and expenditure patterns to create sustainable financial plans. Services include forecasting models and compliance with governmental accounting standards.
Peer Review
As part of our commitment to excellence, we conduct triennial peer reviews validated by independent firms. This process evaluates our audit methodologies against AICPA standards, ensuring continuous improvement in our accounting practices and client service delivery.
People
John Kasperek Jr.
Managing Partner
Certified Public Accountant with 35+ years of experience in governmental accounting. Recognized expert in municipal audits and nonprofit financial consulting. Leads firm strategy while maintaining active client relationships.
Stephanie Blanco
Partner
CPA specializing in tax compliance and financial reporting. Manages client relationships for corporate and individual clients. Provides expertise in payroll tax regulations and business startup accounting.
Katie Marr
CPA
Auditing specialist with focus on nonprofit organizations. Coordinates peer review processes and implements quality control measures. Provides training on updated accounting standards.
Cristiano Miroballi
CPA
Governmental accounting expert handling budget preparation and grant compliance. Advises on pension fund audits and internal control systems for municipal clients.
Lauren Pflugradt
Accounting Professional
Supports tax preparation and payroll services for small businesses. Manages client document processing through secure electronic systems. Provides technical support for accounting software implementations.
Questions
What accounting services do you offer?
We provide auditing, tax preparation, payroll processing, budget consulting, and peer review services for governmental agencies, nonprofits, businesses, and individuals.
Which areas do you serve?
We primarily serve Chicago Southland and Northwest Indiana regions, with offices in Mokena and Calumet City, Illinois.
How can I submit tax documents?
Clients can submit documents in-person, by mail, or through our secure electronic file sharing system with provided access credentials.
Are you certified auditors?
Yes, we hold Level 3 auditor certification from the Illinois Office of the Auditor General—the highest available governmental audit certification.
Do you offer business startup assistance?
Yes, we help new businesses with accounting system setup, tax registration, and compliance requirements for payroll and sales tax reporting.
Reviews (1)
Donald Hummel
Mar 04, 2018
Report
The Kasperek Accounting Company is very professional, friendly and businesslike in all manners! If you need the best in our local area then. Contact Kasperek Acct. Co. Satisfied Customer 12 Yrs. Don W Hummel Bullseye Corp.
