An STR Renovation Timeline for Your Cost Segregation File
Organize acquisition, rental availability, later improvements, and replaced assets when a vacation rental opens or renovates in stages.
One property can have several important dates
The closing date, completion of a remodel, availability for rent, and first guest arrival may be different. Later projects can introduce more dates. Record what each date represents and retain the underlying evidence. The preparer can then assess the applicable placed-in-service treatment. A single first-booking screenshot should not be asked to explain every component acquired or improved over several years.
Create an event ledger
Use a row for acquisition, conversion, initial availability, each significant improvement, and any material change in use. Record the affected area, the supporting document, and whether the date is confirmed or estimated. Distinguish the date money was paid from the date work was completed or an item became available for its intended use. The timeline is a factual record, not an automatic eligibility calculation.
Reconcile renovations to existing assets
Provide the old depreciation schedule and identify components removed, retained, or replaced. A current room photograph can show what exists now while omitting what was present at acquisition. Ask the preparer how the existing ledger should be handled; do not erase an old asset merely because a contractor installed a replacement. Keep the work orders and removal descriptions with the new invoices.
Illustration: a cabin opens before the patio project
A cabin becomes available to rent after the interior work is finished. A patio improvement is completed later, and a furnishing replacement occurs the following season. Keep three documented events rather than treating all spending as one opening budget. Have the preparer review the relevant service dates and elections before the study output is implemented.
Account for use changes
Document personal stays, owner-only areas, periods of long-term rental, and changes to the guest configuration where relevant. Those facts may affect the preparer’s analysis even if the physical building remains unchanged. The study focuses on property costs and components; it should be coordinated with the return preparer’s review of how the property was used.
Close the timeline before filing
Ask the owner, property manager, and contractor to resolve conflicting dates. Mark remaining uncertainties explicitly and preserve the evidence used for the final conclusion. The IRS depreciation guidance discusses when depreciation begins and how improvements are treated. The downloadable project ledger helps collect facts for that analysis; it does not select tax years or calculate a deduction.
Download the improvement and timeline ledger. Blank organizing worksheet; no login required.
Technical reference: IRS Publication 946: service dates and improvements. Templates and examples are organizational aids, not tax conclusions.