Can I Use the STR Loophole on a Vacation Home I Mostly Use Myself?
Somebody in every forum wants to rent the lake house as little as possible and still take the big deduction. The tax code saw that coming in 1976.
A guide by Taxstra Tax & Accounting · CPA-led tax strategy for business owners
Written by Bryan Martin, CPA, Managing Partner and Founder of Taxstra. Last updated August 18, 2026.
The short answer
Almost certainly not. If your personal use exceeds the greater of 14 days or 10% of the days actually rented at fair value, Section 280A treats the home as a residence and caps your deductions at your rental income. You cannot show a loss, and a strategy built on a large Year 1 loss has nothing to work with. Add a token listing at a price nobody pays and you have a profit-motive problem on top. The loophole rewards people running a real rental, not people decorating a vacation home with a deduction.
The 14-day / 10% line, with real numbers
Section 280A draws one bright line. Your property becomes a "residence" for the tax year if personal use exceeds the greater of 14 days, or 10% of the days it was rented to others at fair rental. Because of the word greater, the 10% branch only helps once you clear 140 rented days:
| Days rented at fair value | Your personal-use ceiling | Why |
|---|---|---|
| 35 (a five-week season) | 14 days | 10% would be 3.5, so the 14-day floor governs |
| 100 | 14 days | 10% is 10, still below the floor |
| 200 | 20 days | 10% of 200 finally beats 14 |
| 280 (busy full-year STR) | 28 days | High-occupancy properties earn the most personal room |
And "personal use" is broader than your own vacations. Days used by your spouse, kids, siblings, or parents count. Days anyone stays at below-market rent count. A week you swap with another owner counts. The main carve-outs: days a family member pays fair rent for a home that is their principal residence, and days you spend working substantially full time on repairs and maintenance.
Cross the line and the damage is mechanical: deductions are limited to rental income under 280A(c)(5). Depreciation from a cost segregation study cannot create a loss. Excess deductions carry forward, but for a strategy whose whole engine is a large current-year loss against W-2 income, capped means dead. This is the same trap flagged as a top mistake in our main STR loophole guide.
The person who wants to rent as little as possible
Now to the honest version of the question, the one that shows up in every thread: "What is the minimum I can rent it so I still get the deduction?" Two problems stack up fast.
Problem one is arithmetic. Rent only 30 nights and your personal ceiling is 14 days, a number a family lake house blows through by July. Problem two is profit motive. An activity has to be conducted for profit for its losses to mean anything. A listing priced 3x the market that books two desperation weekends, a calendar blocked all summer, house rules designed to repel guests: an examiner reads that file as a personal residence wearing a costume, and the hobby loss rules give them the tool to disallow it. The day counts are not even the first fight you lose.
There is no clever middle path here. Either the property is a business you sometimes visit, or it is a retreat you sometimes rent. The tax results follow the reality.
Two owners of the same $700K mountain cabin
- Owner A: rents 160 nights at market, uses it 12 days, avg stay 4 nights, logs 120 hours
- Real STR
- Owner A result: 280A residence test passed (12 < 16), loophole available if all other tests met
- Loss can offset W-2
- Owner B: rents 22 nights (priced high on purpose), family uses it 40 days
- Residence
- Owner B result: 40 days personal vs 14-day cap; deductions limited to the small rental income
- No loss, no loophole
Same cabin, same mortgage, same cost segregation potential. The only difference is how the owners actually used it. Illustrative numbers; every test is measured on your actual calendar.
What to do instead, honestly
Three legitimate configurations for a home you love using:
- Run it as a real STR and budget your 14 days. Off-season weekdays are yours; peak weeks earn revenue. Many owners find 14 well-chosen days is most of what they were actually using anyway. Track every day in the same log as your participation hours.
- Embrace the under-15-day rule. If it is genuinely a family place, rent it fewer than 15 days a year (a festival week, a championship weekend) and collect that income completely tax-free under 280A(g). No deductions, no loophole, zero complexity.
- Buy the STR as its own asset. The cleanest answer we give high earners: keep the lake house personal, and run the loophole on a separate property purchased and operated as a business from day one.
Want to keep the lake house AND a defensible tax position?
Walk us through your situation and we'll tell you how we can help. 30 minutes, free, no pressure.
Frequently Asked Questions
How many days can I personally use my STR without killing the loophole?
Stay under the greater of 14 days or 10% of the days the home is rented at fair value. Cross that line and the home is treated as a residence under Section 280A, which caps your deductions at rental income. No loss means no W-2 offset, which is the entire point of the strategy.
Do repair and maintenance days count as personal use?
Days spent substantially full-time on repairs and maintenance do not count as personal use, even if family members are there for the weekend. Document what you worked on: receipts, before-and-after photos, and your time log. A ski trip with one lightbulb changed does not qualify.
Can I let family or friends stay for free or at a discount?
Days used by family members generally count as your personal use unless the home is their principal residence and they pay fair rent. Days rented to anyone below fair market rent are also personal use days. Deep friend discounts are one of the most common silent 280A failures.
What if I list the property at a price nobody would ever pay?
Listing at an unrealistic price to keep the calendar clear for yourself undermines the profit motive behind the whole activity. If the facts show the property was really held for personal enjoyment, deductions can be attacked under the hobby loss rules regardless of the day counts. An examiner will compare your nightly rate to the market.
Can I rent my vacation home for two weeks and pay no tax on the income?
Yes, that is the separate 14-day rule in Section 280A(g): if the home is rented fewer than 15 days in the year, the rental income is not taxable at all, and no rental deductions are allowed. It is a nice perk for an occasionally rented second home, but it is the opposite of the STR loophole, which requires running a real rental business.
Does renting to relatives at full market rate fix the personal-use problem?
Mostly no. Days used by family members count as YOUR personal use even when they pay fair rent, with one narrow exception: a relative paying fair rent for a home that is their principal residence. A market-rate ski week for your brother is still a personal-use day on your 280A count. The family-rate discount version is worse still, since below-market days are personal use for anyone, related or not.
Related STR Loophole Questions
Find the Right Strategy for a Home You Actually Use
Book a free 30-minute call to walk through your situation. We'll tell you exactly how our CPA-led team can help, and whether we're the right fit.
What to Expect on the Call
This page is educational, not individualized tax advice. Short-term rental tax outcomes depend on your specific facts: your hours, your booking history, your personal use, and your documentation. Savings vary by client and results are not typical of every situation. Consult a qualified tax professional before acting on anything here.