- 14 - Cir. 2005), affg. T.C. Memo. 2003-212; Estate of Stone v. Commissioner, T.C. Memo. 2003-309). II. Application of Section 183 Before we address whether petitioner had the requisite profit motive based on the facts and circumstances, we first must address the threshold issue of whether petitioner’s equestrian and design undertakings constitute a single activity for purposes of deciding whether petitioner had the requisite profit motive under section 183. We believe in this case that the resolution of this issue skews all of the remaining issues in favor of the party who prevails. Petitioner’s arguments for profit motive all revolve around the assumption that the undertakings constitute one activity, while respondent’s arguments isolate the equestrian undertaking and its losses to argue that petitioner did not have the requisite profit motive. Whether Petitioner’s Undertakings May Be Treated as One Activity Multiple undertakings of a taxpayer may be treated as one activity if the undertakings are sufficiently interconnected. Sec. 1.183-1(d)(1), Income Tax Regs. The most important factors in making this determination are the degree of organizational and economic interrelationship of the undertakings, the business purpose served by carrying on the undertakings separately or together, and the similarity of the undertakings. Id. The Commissioner generally accepts the taxpayer’s characterization ofPage: Previous 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 NextLast modified: November 10, 2007