STR with owner stays Cost Segregation: Document checklist
Gather the records that resolve the scenario rather than uploading an unstructured folder. Resolve separate guest occupancy, personal use, and availability before modeling deductions using property-specific records.
The issue this scenario creates
Personal use can affect expense allocations and limitations. A booking platform's description does not settle the tax character of every day.
The main objective is to separate guest occupancy, personal use, and availability before modeling deductions. A useful analysis makes the ownership and timeline understandable before anyone applies a reclassification estimate. Do not replace missing history with an assumed new purchase or a generic depreciation percentage.
Document checklist approach
Organize original records by property, event, and date. Give the reviewer a short narrative of what happened and an index connecting each material cost to its supporting document. Identify missing information and the person most likely to provide it. A complete-looking folder can still omit the one record that establishes ownership, allocation, or timing.
Keep purchase and transfer documents, improvement evidence, prior tax schedules, and operating records separately labeled. Use a secure sharing process and exclude unnecessary private information. A bookkeeper, manager, contractor, or prior preparer can each hold part of the evidence. Ask for source records rather than relying only on their summary labels.
Scenario-specific evidence
Start with booking calendar, owner-use log, rental receipts, and improvement dates. Connect each record to the event it establishes. Explain conflicts and missing years rather than presenting a single unexplained number.
| Field | What to record |
|---|---|
| Main question | Separate guest occupancy, personal use, and availability before modeling deductions |
| Source documents | Booking calendar, owner-use log, rental receipts, and improvement dates |
| Known uncertainty | Estimating usable depreciation without considering personal use |
| Event timeline | Original acquisition or transfer; changes in rental use; additions, removals, and prior filing events. |
| Reconciliation | Supported opening amount, relevant adjustments, land and separate assets, prior treatment, and the cost pool used in the report. |
Hypothetical example
A beach property is rented for part of the summer and used by the owner during holidays.
The review should guard against estimating usable depreciation without considering personal use. Resolve that concern using the specific records above. The example illustrates a process question, not an available deduction or an actual completed client study.
Question to resolve before closing this task
Which source record is still missing, who holds it, and what decision depends on obtaining it?
Write down the response and retain the supporting record. Assign an owner to any remaining issue and confirm whether it changes the study scope, projected benefit, delivery timeline, or implementation cost. A property report and a usable deduction are separate steps in the workflow.
Practical completion checklist
- Identify the actual property owner and reporting taxpayer.
- Preserve original records and explain missing information.
- Keep existing assets separate from later additions and replacements.
- Confirm the provider and return preparer have accepted the same basis reconciliation.
- Retain the final report and the schedules actually implemented.
References and scope
- IRS Publication 551: acquisition, transferred, and adjusted basis
- IRS Publication 527: rental use, conversion, and expense considerations
- 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.