Professional Auditing Services

Walworth County, Wisconsin is soliciting proposals for comprehensive Professional Auditing Services through Request for Proposal (RFP) 26-040, with proposals due electronically via the Bonfire Portal by May 18, 2026, at 10:00 a.m. local time. The county seeks a qualified and experienced firm to provide annual financial audits for the year ending December 31, 2026 (with preliminary fieldwork in November 2026 and final fieldwork in April 2027), Single Audits for federal and state grants (to be completed between May and July 2027), and a Lakeland Health Care Center Medicaid Report Audit (scheduled for May 2027). The selected firm must deliver detailed, data-driven audit results with supporting documentation, all required reporting, and presentations to stakeholders to support long-term financial planning, ensure compliance with applicable standards, and provide transparent fiscal oversight. Deliverables include detailed audit plans due by February 15, 2027, final reports due by June 3, 2027, the Single Audit report due no later than July 30, 2027, and the Medicaid compliance report due by July 15, 2027. Required qualifications include a minimum of five years of verifiable governmental audit experience with prior work on Wisconsin government entities, proper Wisconsin licensing, and current non-debarred status. Proposers must maintain professional liability insurance of at least $1 million per occurrence and $2 million aggregate, along with commercial general liability coverage of $1 million per occurrence and $2 million aggregate. Questions must be submitted by April 28, 2026, with presentations and interviews scheduled for June 16-18, 2026, and contract award anticipated by July 23, 2026. The contract will commence October 1, 2026, for an initial three-year term with an option to automatically renew for one additional two-year period unless either party cancels within 120 days prior to expiration.

The RFP contains no explicit set-asides or restrictions limiting participation to disadvantaged enterprises or other protected classifications; however, all contractors must comply with nondiscrimination and affirmative action standards and provide debarment and suspension certifications. The incumbent auditor is Baker Tilly US, LLP, which completed the 2024 audit and issued reports on May 23, 2025 and July 30, 2025, respectively, indicating the county's current audit standards and expectations for reporting quality. Walworth County operates 22 departments utilizing Tyler Technologies Munis software for its integrated financial system, which the selected firm must be capable of evaluating and auditing. The county serves a population of approximately 107,415 across 576 square miles with 2024 total expenditures of $234.9 million, a 2026 tax levy of $64.0 million, and approximately 1,000 employees, indicating the scope and complexity of the audit engagement. While the RFP does not explicitly state the award value, the county requires proposed pricing as firm, not-to-exceed costs with separate line items for the Financial Audit, Single Audit, and Lakeland Health Care Center Medicaid audit, with all travel and mileage expenses prohibited from additional charges. Labor costs must remain firm for contract years proposed, with future adjustments limited to the lower of the Employment Cost Index for the Midwest or 3 percent annually, subject to 30-day written notice, and proposers must also provide hourly rates for Partners, Managers, Supervisory Staff, and Staff for any additional services beyond the defined scope.