Are Utah agencies bound by stipulations of fact in administrative proceedings? Yeargin, Inc. v. State Tax Commission Explained

Background and Facts

Yeargin, Inc. served as a contractor for constructing an ammonium perchlorate manufacturing facility near Cedar City, Utah. The parties entered into a stipulation of facts stating that “title to all materials purchased for use at the WECCO facility passed directly to WECCO from the suppliers.” Nearly three years later, the State Tax Commission’s Auditing Division sought to be relieved from this stipulation, claiming it had entered into the agreement under a mistake of fact after discovering additional evidence showing Yeargin had issued purchase orders and paid for some materials.

Key Legal Issues

The central issues were whether the Commission was bound by the parties’ stipulation of facts and whether Yeargin qualified as a real property contractor liable for sales tax under Utah Code section 59-12-103 and Utah Administrative Rule 865-19-58S. To be a real property contractor, Yeargin must have both converted materials into real property and purchased or owned those materials.

Court’s Analysis and Holding

The Utah Supreme Court held that the Commission remained bound by the stipulation. While the Division’s opposition memorandum constituted a request for relief, it was filed thirty-two months after the stipulation was entered and nearly twenty-four months after the Division claims it discovered the alleged mistake. The Court found this motion untimely under precedents requiring “seasonable” filing of such requests. The Court emphasized that stipulations of fact have “all the binding effect of findings of fact and conclusions of law” and “cannot be met by evidence tending to show that the facts are otherwise.” Since the stipulation clearly stated that WECCO, not Yeargin, held title to all materials, Yeargin could not be considered the purchaser or owner required for real property contractor liability.

Practice Implications

This decision reinforces that administrative agencies are bound by stipulations under the same principles governing judicial proceedings. Practitioners should carefully review all facts before entering stipulations and file any motions for relief promptly after discovering errors. The Court noted that allowing parties to escape stipulations too easily would discourage their use and create litigation inefficiencies. The case was remanded for consideration of alternative theories of tax liability not addressed by the court of appeals.