Most short-term rental tax outcomes are decided months before anyone opens a tax return. Here is the year, laid out as a calendar, with the decisions that have to happen in each part of it.
My BnB Accelerator, LLC is a real estate acquisition firm, not a CPA firm. This is a plain English explanation so you can have an informed conversation with a qualified professional, not tax advice. Our tax partner is AE Tax Advisors, an independent firm.
January through March
- Close out last year's records. Export the full platform reservation history, compute the average period of customer use, and file it with the return. See documentation that holds up.
- Finalize the participation log for the prior year while the details are still recoverable.
- Have the strategy conversation for the current year, including whether an additional acquisition makes sense and what income you expect.
- Confirm the applicable bonus depreciation percentage for the current year with your CPA if you plan to buy. See bonus depreciation in 2026.
April through June
- Start the acquisition process if you intend to buy this year. A property placed in service in December has to be under contract well before then, and a spring start leaves room for a failed inspection or a slow lender.
- Review the running average stay for the first months of the year and adjust booking policy if it is drifting toward seven days.
- Verify your participation pace. If you are targeting the 100 hour test and are at fifteen hours in June, that is a problem you can still fix.
July through September
- Make the go or no go decision on a current year purchase. This is the last comfortable window for a December placed-in-service date on an existing property, and it is already too late for a build.
- Engage the cost segregation firm early if a study is planned, since scheduling compresses in the fourth quarter. See how to choose a firm.
- Model the exit scenarios before the study runs: sale, exchange, and long hold. See depreciation recapture explained.
- Review the management structure if participation is at risk. Changing it in September still leaves a quarter to accumulate hours.
The work that matters happens before December
We build acquisition timelines around your CPA's deadlines rather than the other way around.
Apply NowOctober through December
- Protect the placed-in-service date. Furnishing delays, utility connections, and photography scheduling are the three things that most commonly push a listing into January.
- List the property and accept bookings, since placed in service generally means ready and available for its intended use.
- Finish the year's participation hours, documented contemporaneously rather than backfilled.
- Check the annual average stay one final time, and decline a long booking in late December if it would break the average for the year.
- Reconcile the books so your CPA is not reconstructing them in March. See bookkeeping and records.
- Confirm the cost segregation study is complete or scheduled, with the placed-in-service date documented.
Continuous, all year
- Log participation hours as the work happens, with specific descriptions. See material participation and hour logs.
- Run every dollar through a dedicated account per property.
- Track the running average length of stay monthly rather than annually.
- Keep invoices with descriptions so repairs and improvements can be distinguished later.
- Save the cost segregation study permanently, not for one filing season.
None of this is complicated. All of it is close to impossible to reconstruct after the fact, which is why the calendar matters more than the knowledge. See the complete STR tax savings guide and our partner firm's material on short-term rental tax strategy.
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Frequently asked questions
When should I start buying if I want a current year tax deduction?
Practically, by the third quarter for an existing property, and earlier if financing or furnishing may be slow. A December placed-in-service date requires being under contract well before then, and builds or heavy renovations are generally out of reach for a current year deduction by midyear.
What tax tasks should short-term rental owners do quarterly?
Close out prior year records and finalize the participation log in the first quarter, start an acquisition and check the running average stay in the second, make the go or no go decision and engage a cost segregation firm in the third, and protect the placed-in-service date in the fourth.
What should I track continuously during the year?
Participation hours logged as work happens with specific descriptions, every dollar through a dedicated account per property, the running average length of stay monthly, invoices with descriptions so repairs and improvements can be distinguished, and permanent storage of any cost segregation study.
Can I fix a participation shortfall late in the year?
Sometimes. Discovering in June that you are behind leaves time to change the management structure or take on more of the work. Discovering it in February of the following year does not, which is why a midyear participation review is part of the calendar.