July 1, 2026

Buying the STR Is Not Enough: Hours, Cost Seg, and Bonus Depreciation by State

Posted Monday, July 6, 2026

The Situation

Lyle W. from Washington is a high W-2 earner sitting at the 32% federal tax bracket. He and his wife, also W-2 earner, came to WCG ready to buy their first short-term rental and use every available depreciation tool to reduce their tax bill. In a discovery session with Andy Pearson, EA, Tax Supervisor with WCG CPAs & Advisors, they mapped out the numbers: a purchase price around $350,000 plus $80,000 to $100,000 in renovations, putting total deployed capital near $450,000. They’re also selling RSUs this year to fund the purchase, which adds a meaningful layer to year-one planning.

The Strategy

Three things need to work together.

First, the short-term rental tax loophole. For rental losses to offset W-2 income, two conditions have to be met: the average guest stay has to be seven days or less, and Lyle and his wife have to materially participate. The most commonly used test is 100 hours combined, with both spouses outpacing everyone else, as individuals, working on the property, including cleaners and their co-hosting arrangement. One thing many people miss: hours logged before the property is placed in service do not count toward material participation. The clock starts when the property is ready and available for guests, not when renovation begins.

Second, cost segregation.professional study breaks the asset into shorter-lived categories, including 5-year, 7-year, and 15-year property, alongside land and building. The shorter-lived components qualify for bonus depreciation or Section 179, making them fully deductible in year one. WCG uses 28% of building basis as a starting benchmark for what is typically eligible.

Third, state rules cut both ways. Bonus depreciation conformity applies to both the state where the property sits and the state where the owners file as residents. The two interact, and that confluence can reduce or complicate the federal benefit depending on where each stands. California is the well-known example of a state that disallows federal bonus depreciation entirely and significantly limits Section 179. It is worth mapping both states before committing to a market.

The Outcome

With $50,000 allocated to land, the building basis is $400,000. At 28% eligible for acceleration, that is $112,000 in first-year deductions. At 32%, that comes to roughly $35,000 in federal tax savings before renovation costs are layered in. Those improvements, including planned outdoor additions, may also qualify for accelerated treatment.

The year Lyle and his wife buy, renovate, and sell RSUs is also the year cost seg deductions are largest. That timing is not a coincidence. That is the plan.

Total Taxes Saved

~$35,000

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The tax advisors, business consultants and rental property experts at WCG CPAs & Advisors are not salespeople; we are not putting lipstick on a pig expecting you to love it. Our job remains being professionally detached, giving you information and letting you decide within our ethical guidelines and your risk profiles.

We see far too many crazy schemes and half-baked ideas from attorneys and wealth managers. In some cases, they are good ideas. In most cases, all the entities, layering and mixed ownership is only the illusion of precision. As Chris Rock says, just because you can drive your car with your feet doesn’t make it a good idea. In other words, let’s not automatically convert “you can” into “you must.”

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