What Records Do I Need to Keep for My STR Tax Audit?
A defensible STR file needs more than receipts. You want booking reports, bank statements, platform summaries, property-level ledgers, depreciation schedules, mileage or travel support where relevant, and participation records if you are claiming nonpassive treatment.
Your audit file should answer four questions fast
First, how much gross income did the property generate? Second, where did the deductions come from? Third, how was depreciation calculated? Fourth, why is the activity passive or nonpassive on the return? If your records answer those four questions quickly, most tax preparation and audit work becomes easier. If not, every follow-up question turns into billable time and unnecessary risk.
Keep records by property and by tax year
A landlord with four Airbnb properties should be able to open a 2025 folder for one property and see income reports, expense support, bank reconciliation, insurance, mortgage statements, 1098, depreciation detail, licenses, and occupancy tax filings in one place. That structure matters for audits, refinances, and sale calculations. It also keeps one messy property from contaminating the books of the others. Multi-property systems fail when everything is stored at the portfolio level only.
| Record | Why you need it |
|---|---|
| Platform annual summaries | Tie gross bookings, fees, refunds, and taxes to reported income |
| Receipts and invoices | Support deductions and capitalization decisions |
| Depreciation schedule | Show basis, life, and placed-in-service dates |
| Time logs and support | Back nonpassive treatment or REPS claims |
Keep records long enough to matter
Basic income-tax records are often kept for years after filing, but basis records, improvement invoices, and depreciation support should usually be retained much longer because they affect sale gain calculations. Throwing away the $28,000 kitchen remodel invoice after three years can be expensive when you sell eight years later. The same principle applies to cost segregation reports and asset schedules. The property’s tax history is cumulative, not annual in isolation.
FAQ
Related questions
Digital copies are usually fine if they are legible, complete, and organized. What matters is that you can retrieve them and tie them to the ledger.
General tax records often need to be kept for multiple years, and basis or depreciation records should usually be retained for the entire ownership period plus the relevant post-sale period.
You should rebuild the file using bank statements, vendor invoices, emails, and platform records where possible. Missing documentation is much easier to address before an audit notice arrives.