Partial disposition evidence package
A proposed partial disposition needs an identifiable removed asset and support for its historical basis. Practical cost segregation buyer guidance from Stratum.
The decision this guide addresses
A proposed partial disposition needs an identifiable removed asset and support for its historical basis.
Provide original records, previous studies, replacement scope, and photographs showing what remained.
Make this review concrete
Start with the old asset's physical identity and original schedule. If historical component costs are unavailable, ask the preparer what reasonable method and procedural requirements apply. Retain the explanation rather than assuming the replacement price equals removed basis. Document salvage, sale, and retained portions so the calculation follows the actual event.
A practical review sequence
Have the preparer assess available basis-estimation methods and elections. Replacing a component does not automatically establish a deduction amount.
Begin with the actual property and engagement being considered. Keep a written distinction between confirmed facts, estimates, services being purchased, and decisions reserved for the return preparer. If a seller or provider presents only a headline benefit, ask for the underlying evidence and assumptions before making a comparison.
Working review sheet
| Field | What to record |
|---|---|
| Question to resolve | A proposed partial disposition needs an identifiable removed asset and support for its historical basis. |
| Evidence or explanation to request | Provide original records, previous studies, replacement scope, and photographs showing what remained. |
| Review action | Have the preparer assess available basis-estimation methods and elections. Replacing a component does not automatically establish a deduction amount. |
| Responsible party | Name the owner, study provider, technical reviewer, or return preparer who can answer this particular question. |
| Acceptance record | Document the answer, its supporting reference, unresolved items, and the version of the report or engagement to which it applies. |
A hypothetical problem to recognize
A roof replacement occurs years after acquisition without an original roof-specific cost record.
Treat the missing explanation as an open item. Ask for a written response, connect it to the affected records, and determine whether it changes the proposed scope or feasibility. This scenario is an editorial illustration, not a testimonial or evidence that a particular provider has performed deficient work.
Questions for the next conversation
What evidence supports the proposed conclusion for this property? Which facts or records could change the answer? Who is responsible for resolving them, and is that work included in the quoted engagement? These questions are more useful when they identify a specific document, asset row, or service than when they request a general assurance of quality.
Ask what the final deliverable will contain and how the preparer will receive it. Where the question affects costs or implementation, request a revised written scope rather than relying on a sales-call recollection. Where it affects tax treatment, the preparer should apply the current rules to the taxpayer rather than extrapolate from another property.
Complete the decision record
Retain the relevant proposal, response, source documents, final report version, and implementation notes in the property file. Record what remains unresolved and whether it must be addressed before engagement, before report delivery, or before filing. A documented decision is easier to review later than an unexplained schedule or an isolated benefit estimate.
Stratum focuses on component evidence and reporting. Broader tax planning, method changes, state calculations, and return preparation need defined responsibilities and an agreed scope. Confirm those roles so the property work produces a useful handoff rather than an assumption that one purchased service includes every related task.
References and scope
- IRS Cost Segregation Audit Technique Guide, Publication 5653
- IRS Publication 551: acquisition, transferred, and adjusted basis
- IRS Publication 946: depreciation, ownership, methods, and timing
These references explain the underlying tax framework. The checklists and scenarios on this page are editorial tools for gathering evidence, not quotations or asset-specific rulings from the IRS. The audit guide is examination guidance, not an official pronouncement of law or certification of a provider. A return preparer must apply current authority to the particular property, taxpayer, and filing year.