AmeriSouth XXXII v. Commissioner: the government's cost segregation counterattack

AmeriSouth XXXII, Ltd. v. Commissioner, T.C. Memo 2012-67, is the leading modern example of the IRS dismantling a cost segregation study in court. AmeriSouth, a partnership that bought a Texas garden apartment complex for $10.25 million, used a study to reclassify roughly $3.4 million of the property into 5- and 15-year MACRS classes. The Tax Court went through the disputed components one by one and sustained the Commissioner on nearly all of them, holding that site utilities, much of the plumbing and electrical work, cabinets, and finish items were structural components of 27.5-year residential rental property. The opinion doubles as a cautionary tale in litigation conduct: AmeriSouth stopped responding to the court, its counsel was permitted to withdraw, and the court treated the government's unanswered factual assertions as conceded.

The dispute

AmeriSouth acquired the Garden House apartments in Mesquite, Texas in 2003, spent several million dollars on renovations, and commissioned a cost segregation study. The study allocated about a third of the total basis away from 27.5-year residential rental property: site preparation and earthwork, water distribution and sanitary sewer systems, gas lines, special plumbing and electrical connections, interior finishes, cabinets and countertops, and similar categories claimed as 5-year personal property or 15-year land improvements. The IRS disallowed most of the acceleration, and the partnership petitioned the Tax Court.

The holding

The court largely sustained the Commissioner. Working through the categories under Treas. Reg. §1.48-1(e) and the ITC-era case law preserved by Hospital Corp of America v. Commissioner, 109 T.C. 21 (1997), it held that most of the contested assets were structural components or otherwise part of the building: water and sewer lines serving the buildings, kitchen sinks and their plumbing, cabinets and countertops, branch wiring to kitchen appliances, interior doors and trim, and more. The recurring rationale was functional. In an apartment complex, kitchens, plumbing, and wiring are not accessories to some separate business conducted inside the building — operating a dwelling is the business, so assets relating to the maintenance or operation of the building are structural. A few minor items survived, but the overwhelming share of the $3.4 million went back to 27.5 years.

The reasoning that matters

Two threads deserve attention. Substantively, the court refused to let restaurant and hospital precedents transplant into residential property. Cases like Hospital Corp of America turned on equipment-specific systems serving a distinct business function; an apartment's sink serves the apartment. Where the taxpayer argued a whirlpool-tub analogy or relied on the "accessory to a business" line of authority, the court answered that a residential landlord's business is the building, collapsing the distinction the study depended on.

Procedurally, AmeriSouth simply quit. It stopped responding to discovery, to the IRS, and to the court; its lawyers withdrew; and under the court's rules, factual assertions in the Commissioner's briefs that went unanswered were deemed conceded. Whatever engineering arguments might have been available were never made. A study's paper conclusions do not defend themselves — someone has to show up with the drawings, the invoices, and the expert.

What it means for claims today

The IRS's Cost Segregation Audit Techniques Guide tells examiners to review studies component by component, and AmeriSouth is what that looks like when it reaches court. Practical consequences: residential rental studies deserve conservative scoping, because the dwelling-function reasoning reaches most interior components; positions borrowed from commercial or hospitality precedents need a genuine functional analog, not a category label; and every reclassified asset in a return claiming accelerated depreciation on Form 4562 should be traceable to documents the taxpayer can actually produce years later. The case does not repudiate cost segregation — the framework of Pub 946 classes and Hospital Corp of America classification is intact — but it prices in the cost of overreach, and of silence.

Related reading

• How cost segregation became law — where AmeriSouth sits in the doctrine
• Hospital Corp of America v. Commissioner — the precedent AmeriSouth could not stretch
• Audit readiness and documentation — building the file that AmeriSouth never produced