For inherited property in Phoenix, basis support starts with a defensible historical value rather than with the later sale price or tax outcome. Architectural character, additions, restoration, remodeling, lot pattern, and effective condition can matter more than year built alone when reconstructing an earlier market. The assignment should identify the valuation date first, then reconstruct the property and market needed to support that historical fair market value.
The appraiser's role is to develop a supported fair market value for the applicable historical date. The taxpayer, CPA, attorney, or other adviser determines how that value is used for basis and tax reporting. For Phoenix, the appraisal should consider historic districts only when it changes the subject's competitive position.
For basis-support valuation, Phoenix has numerous designated residential historic districts. Architectural character, additions, restoration, remodeling, lot pattern, and effective condition can matter more than year built alone when reconstructing an earlier market. The historical value record is stronger when this distinction is supported by sales from the same competitive segment.
The appraisal should support the real estate value on the applicable historical date. It does not calculate capital gains, determine the taxpayer's basis election, or replace advice from a CPA or attorney.
Date-of-death information, prior listings, photographs, permits, deeds, and improvement records can help create a durable historical value record. That evidence helps document the real estate value independently of whatever tax treatment is later applied.
A stepped-up-basis appraisal should document the property and market evidence clearly enough that the historical fair market value can be understood later, even if the property is sold or changed afterward.
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