Why it exists
After the courts confirmed that property qualifying as tangible personal property under the investment tax credit rules keeps that character for depreciation, the Service chose to publish a standard rather than litigate building by building.
The result is a manual describing what examiners look for. It is public, and reading it is the single most useful hour an owner considering a study can spend.
The thirteen elements
The guide describes the characteristics of a quality study: preparer expertise in construction and engineering; a stated methodology; an appropriate costing method; reconciliation of total costed to capitalised basis; explanation of the legal basis for each classification; documentation of a site inspection; a complete asset listing by recovery period; allocation of indirect costs; identification of 1245 versus 1250 property; treatment of land and non-depreciable costs; documented placed-in-service dates; consideration of the tangible property regulations; and a report a third party can follow without calling the author.
Ask any firm quoting you a study whether their report addresses all thirteen. The answer tells you a great deal.
The costing methodologies, ranked
The guide discusses several approaches and is candid about their relative reliability: detailed engineering cost estimates from actual records at the top, detailed engineering estimates from cost data next, then survey or letter methods, residual estimation and sampling approaches, and rule-of-thumb allocations at the bottom.
A report that will not name its methodology is telling you which end it sits at.
Industry-specific guidance
The guide includes chapters addressing particular property types — casinos, restaurants, retail, biotechnology, pharmaceutical, auto dealerships — describing components the Service expects to see treated a particular way in each.
Where an examiner has specific expectations for your property type, a study that ignores them is inviting a question.
What it does not say
It does not set acceptable reclassification percentages. There is no threshold above which a study is automatically challenged. What matters is whether the classifications are supported by evidence and reasoning appropriate to the building.
How to use it
Read it before you engage a firm. Ask how their report maps to it. Then read the methodology section of the report you receive and check that it does what it says. That is genuine due diligence, and it takes an afternoon.
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