When this guide is useful
A report uses cost data that may reflect a different date or scope from the property project.
The distinction that matters
Identify the estimate source, date, location and adjustment method. Estimated replacement cost does not automatically equal the taxpayer's historical cost basis.
A worked situation to investigate
An older rental has few invoices, and a provider develops an estimate using current cost information and documented adjustments.
The example is illustrative. Begin with the underlying event and its source documents, then separate missing facts from disagreements about their treatment. Work through the checks below in the order that matches your file, rather than treating a completed checklist as a tax conclusion.
Build a traceable handoff
Identify the affected person, entity or property and the relevant period. Keep original evidence, corrections and the reviewer's written conclusion connected. If the facts change after review, preserve the earlier version and ask whether the change affects implementation.