States · Wisconsin
Wisconsin plans that need their first audit
27 retirement plans sponsored by Wisconsin employers filed Form 5500-SF for 2025 and ended the year with 121 or more participants with account balances. Under the 80-120 rule they start 2026 above the large-plan threshold, so plan year 2026 is generally their first audited year. That ranks Wisconsin number 25 of 53 states and territories on the current forecast list.
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27Wisconsin plans on the forecast list (27 are 401(k) plans)
132Wisconsin plans at 100-120 participants on the watch list
131median participants with balances at the end of 2025
$6.5mmedian net plan assets at the end of 2025
Industries
Who sponsors these plans
Industry of the plan sponsor (NAICS sector) for the 27 forecast plans in Wisconsin.
| Industry | Plans | Share |
|---|---|---|
| Manufacturing | 7 | 26% |
| Professional services | 4 | 15% |
| Real estate | 3 | 11% |
| Retail | 3 | 11% |
| Transportation | 2 | 7% |
| Construction | 2 | 7% |
Where
Cities with several plans
Milwaukee (7), Waukesha (3).
Already audited
New large plans
3 Wisconsin plans filed their first Form 5500 in the last season directly as large plans with an auditor's report. They show which firms win new plans from the start.
Auditor market
Who audits employee benefit plans in Wisconsin today
174 audit firms signed 1,970 audits of Wisconsin plans in the last complete filing year (Schedule H, plan year 2024). The largest by number of plan audits:
| Audit firm | Plan audits | Share in Wisconsin |
|---|---|---|
| Cliftonlarsonallen LLP | 363 | 18.4% |
| Wipfli LLP | 317 | 16.1% |
| Baker Tilly US, LLP | 229 | 11.6% |
| Vrakas S.c. | 136 | 6.9% |
| Sikich CPA LLC | 97 | 4.9% |
| Hawkins Ash CPAS, LLP | 90 | 4.6% |
| Reilly, Penner & Benton LLP | 57 | 2.9% |
| Grant Thornton LLP | 54 | 2.7% |
Counted from the accountant firm name and EIN on Schedule H. Firms that merged during the year can appear under the old name.
Timing
Deadlines for the Wisconsin plans on the list
For calendar-year plans the first audited Form 5500 (plan year 2026) is due on 31 July 2027, or 15 October 2027 with a Form 5558 extension. Most sponsors engage their auditor after the plan year closes, so the window to introduce your firm is now through early 2027. How the audit requirement works.
The full Wisconsin list includes every forecast plan with sponsor, EIN, plan number, city, industry, participant trend, net assets and deadlines, plus the watch list and monthly updates. $290 per year for one state at the founding price, $990 nationwide, with a 30-day money-back guarantee. See pricing.
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