When this guide is useful
Project costs include design, permits, oversight and other indirect amounts.
The distinction that matters
Keep the source costs and allocation method visible. Indirect costs should not vanish from the total or be assigned solely to maximize a desired deduction.
A worked situation to investigate
A new rental project has architect, permit and construction management invoices separate from the builder's contract.
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.