Seven-Day and Thirty-Day STR Tests
Answers to five connected questions about seven-day and thirty-day str tests. Review IRS sources, practical facts, records and filing responsibilities.
The decision this guide resolves
The seven-day test uses an average period of customer use, not a maximum length for every individual reservation.
A practical fact pattern
One extended booking changes a property’s annual average even though most guests stay weekends. Compute the average from records rather than changing the description of the rental.
Records to gather before deciding
- Actual occupied rental periods and total days
- Revenue by property class where relevant
- Guest service contracts and service logs
Frequently Asked Questions
How do I calculate average guest stay?
For the basic single-property calculation, divide total days in all rental periods by the number of rentals during the tax year. Use actual customer-use records and reconcile extended or combined periods. More than one class of property can require the revenue-weighted method described in Publication 925.
Does every reservation have to be seven days or less?
No. The exception generally asks whether average customer use is seven days or less. Some stays can be longer if the properly calculated annual average still meets the test. Keep the supporting reservation detail; an advertised minimum stay is not the calculation.
Does a 30-day average automatically qualify?
No. The 30-day-or-less exception also requires significant personal services. Evaluate the frequency, labor, nature and value of services under the passive rules. Ordinary maintenance or services excluded by the rule do not become significant merely because guests appreciate them.
Do vacant nights count as rental days in the average?
Unoccupied available nights do not add customer-use days or create new customer rentals. Distinguish availability from actual rental periods. Keep the booking ledger and use the precise customer-use rules rather than dividing occupied days by all calendar nights.
What if my average stay exceeds seven days?
Test the other rental-activity exceptions if the facts support them. If none applies, the rental real estate passive rules generally become relevant, including any real estate professional analysis. Do not report a nonpassive loss just because most individual reservations were short.
How to turn the answers into a return decision
Write down the property owner, affected tax year, the factual test being used and the evidence supporting it. Reconcile the amount on the study or workpaper with the return schedule, identify any limitation and assign the filing task to a named preparer. If a fact is missing, resolve it before treating the estimated deduction as usable.
Continue the planning sequence
Reviewed sources and scope
Reviewed November 8, 2026 by AE Tax Advisors. This is a federal planning resource; the facts, tax year, elections and state rules control the actual return. IRS publications explain rules but do not replace applicable law. The cost segregation audit guide is nonbinding examiner guidance and predates later bonus-depreciation changes.
Bring the facts to a scoped review
A study estimates asset classifications; a tax review determines eligible and currently usable deductions. Ask who reconciles basis, prepares any Form 3115 or amended return, and implements the final schedules. No tax saving or investment outcome is guaranteed.
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