At 401kPlanAuditCPA, we offer comprehensive 401(k) audit and compliance services for businesses throughout Illinois — including Chicago, Naperville, Springfield, Peoria, and Rockford.
Our experienced CPAs and ERISA professionals ensure your employee benefit plan complies fully with Department of Labor (DOL) and IRS regulations, providing the accuracy, insight, and support your organization needs.
401(k) Plan Audit Services in Illinois
Your Trusted Illinois 401(k) Audit and Compliance Partner
If your company in Illinois has 100 or more eligible participants, you are required by ERISA to undergo an independent 401(k) plan audit annually.
Our audit process is efficient, secure, and tailored to the needs of Illinois employers — designed to minimize disruption while ensuring complete compliance and reliable reporting.
Why Illinois Businesses Need Specialized 401(k) Audit Support
ERISA and DOL Compliance Made Simple
Our team ensures your plan meets all federal ERISA and DOL regulations. We perform complete operational reviews, test transactions, and verify that participant data, payroll, and plan documents align with regulatory standards.
Industry Expertise for Illinois Employers
From Chicago’s corporate headquarters to manufacturing plants in Peoria and small businesses in Springfield, we understand Illinois’s economic diversity and tailor our audit approach to match each company’s structure and industry.
Regional Responsiveness and Local Insight
Our secure, technology-driven process allows for both remote and hybrid audits — ideal for multi-location organizations or those with distributed workforces across Illinois.
Our Illinois 401(k) Audit & Compliance Services
Independent 401(k) Plan Audits
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Full-scope and limited-scope ERISA audits
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Review of plan design, eligibility, contributions, loans, and distributions
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Verification of internal controls and fiduciary compliance
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Summary of findings and recommendations to strengthen plan operations
Form 5500 Preparation and Filing
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Accurate and timely preparation of Form 5500
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Compliance with DOL and IRS submission standards
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Guidance through filing extensions and error corrections
Plan Consulting and Compliance Advisory
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Review of plan operations and documentation
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Nondiscrimination testing and compliance corrections
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Fiduciary training and operational guidance
Illinois-Focused Expertise
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Understanding of Illinois industries like manufacturing, logistics, finance, education, and healthcare
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Familiarity with state labor dynamics and multi-site employers
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Responsive service and dedicated support aligned to Central Time
The Benefits of Working With Us for Illinois Businesses
Specialized 401(k) Plan Expertise
Unlike general accounting firms, we focus on benefit plans.
Risk Reduction
We identify compliance gaps before they become costly issues.
Time & Cost Savings
Our streamlined process minimizes disruption for HR and finance teams.
Trusted Advisors
We don’t just audit—we guide and consult for long-term success.
Nationwide Service
Supporting businesses of all sizes and industries across the US.
Common Questions from Illinois Plan Sponsors
Do Illinois businesses have unique 401(k) audit requirements?
The requirements are federal under ERISA, but Illinois employers often operate multi-state payrolls or unionized environments that require additional audit considerations — which our team handles with care and expertise.
When is the audit and Form 5500 deadline?
The standard filing deadline is seven months after your plan year-end, with a possible 2.5-month extension. We help Alabama employers stay on track with all required documentation.
How much does a 401(k) plan audit cost in Illinois?
Our audit fees are based on plan size and complexity, with flat-rate pricing to ensure clarity and predictability.
Industries We Serve
We work with a diverse range of high-net-worth individuals and businesses across multiple industries, including:
Healthcare Organizations
Healthcare providers often face complex payroll structures, multiple benefit plans, and strict compliance requirements.
Technology Companies
Tech firms with fast-growing workforces often struggle with eligibility tracking and timely filings.
Manufacturing & Industrial Firms
Manufacturing companies often manage high employee turnover and complex contribution structures.
Professional Services Firms
Law firms, accounting firms, marketing agencies, and other service providers need reliable compliance support to avoid client-facing disruptions.
Schedule Your 401(k) Audit Consultation Today
Don’t leave compliance to chance. At 401(k) Plan Audit CPA, we specialize in 401(k) audits, Form 5500 preparation, and employee benefit plan consulting. Whether you’re preparing for your first audit or managing a large retirement plan, our CPAs provide the expertise and peace of mind you need.
