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Multiemployer Benefit Plans

Withum's Multiemployer Benefit Plan specialists provide value beyond the numbers and compliance where it matters. Let us help you be in a position of strength.

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Withum is among the few firms in the nation that specializes in multiemployer benefit plan audit and advisory services. Our experience includes multiemployer benefit plans of all sizes, including plans with over 500,000 participants and assets over $15 billion.

Industry Specialists

Withum is among the few accounting firms that specialize in multiemployer benefit plan audit and advisory services. We service multiemployer benefit plan clients of all sizes, including plans with over 500,000 participants and assets of $15 billion.

Withum’s Multiemployer Benefit Plan Practice Group professionals are specialists in Employee Retirement Income Security Act (ERISA), Department of Labor (DOL) and Internal Revenue Service (IRS) compliance and are nationally recognized for their expertise.

The Multiemployer Benefit Plan Practice Group includes several highly-qualified specialists in the areas of tax compliance and benefit claims processing. Few other Firms employ professionals that are exclusively dedicated to these specific areas.

Firm Partners and professionals are very active in industry associations, serving on the International Foundation of Employee Benefit Plans’ (IFEBP) Board of Directors, as well as various IFEBP committees. Additionally, Withum Partners have served on the American Institute of Certified Public Accountants (AICPA) Employee Benefit Plan Expert Panel. The Firm plays an annual role in drafting changes to or developing new sections of, industry pronouncements and guides and Firm professionals frequently teach industry best practices and standards.

Services and Capabilities


  • Financial Statement Audits: Full Scope and Limited Scope
  • Payroll/Employer Compliance Audits
  • Health Claims Audit
  • Shared Expense Allocation Studies
  • Form 5500 Preparation, Review and Compliance Assistance
  • IRS & State Tax Compliance: Forms 990, 990-T, State
  • Tax Returns, Forms 5471 & 8865
  • Top Heavy Testing


  • Simulated Claims Processing
  • Retirement Claims Paid, Denied and Appealed
  • Data Security and Retention Consulting
  • Salary Surveys and Benefit Comparisons
  • Plan Expense Trends and Industry Comparison
  • Internal Control Evaluation and Consulting
  • Operational Reviews

Fiduciary Protection

  • Trustee Education
  • Forensic Auditing
  • Merger Due Diligence and Consulting
  • Cybersecurity Evaluation
  • Trustee Expense Reimbursement Review



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