Bonus Depreciation: How Lake Tahoe STR Owners Offset W-2 Income

Why this is the most powerful move in the STR playbook

Normally, residential rental property depreciates over 27.5 years — a slow, steady deduction. Bonus depreciation and cost segregation compress a large part of that into year one. For a high earner buying a Tahoe rental, that first-year deduction can be the difference between a great after-tax return and a merely good one.

Two things make 2026 notable. First, the law changed: the older bonus-depreciation phase-down (80% in 2023, 60% in 2024, 40% in 2025, headed to zero) was reversed by 2025 legislation, restoring 100% bonus depreciation for qualifying property placed in service after January 19, 2025. Second, Tahoe properties have a lot of "short-life" components — decks, hot tubs, built-ins, flooring, fixtures, landscaping, snow-related site improvements — exactly the assets a cost-seg study reclassifies into bonus-eligible buckets.

Step 1 — Cost segregation: turning one building into many assets

When you buy, the IRS sees one asset (the building) on a 27.5-year clock, plus non-depreciable land. A cost-segregation study — done by an engineering/tax firm — re-sorts the purchase into components:

• 5-year: appliances, carpet, certain fixtures, furniture
• 7-year: some furnishings and equipment
• 15-year: land improvements — driveway, landscaping, exterior decking, fencing
• 27.5-year: the remaining building shell

The 5-, 7-, and 15-year buckets are bonus-eligible. On a furnished Tahoe STR, those buckets are often a meaningful share of the building basis — which is why cost seg and STRs go together.

Step 2 — What drives the math on your property

The size of your first-year deduction comes down to four inputs. Rather than guess at numbers, here's what your CPA plugs in once you own the property:

• Depreciable building basis — purchase price minus the land allocation (land doesn't depreciate; the allocation is often 20–30%).
• Short-life percentage — the share the cost-seg study moves into 5/7/15-year buckets (commonly in the 20–35% range on a furnished STR).
• Bonus rate — 100% for qualifying 2026 property placed in service after Jan 19, 2025.
• Your marginal tax rate — federal, plus California if you're CA-taxed. The higher your rate, the more each dollar of deduction is worth.

Multiply building basis × short-life % × bonus rate to get the first-year deduction, then × your marginal rate for the rough tax saved. Want the real figure on a property you're considering? I'll model occupancy, length of stay, and the basis split before you buy — call (530) 317-0373.

The part everyone gets wrong: passive vs. non-passive

A big deduction is only useful if you can use it. By default, rental real estate losses are passive — they can only offset passive income, not your salary. For most people, the loss just carries forward, waiting.

Short-term rentals have a well-known exception. If the average period of customer use is seven days or less, the activity is generally not treated as a rental activity under the passive-activity rules. Combine that with material participation (the common tests: 500+ hours, or 100+ hours and more than anyone else) and the losses can become non-passive — able to offset W-2 and other active income. This is what people mean by the "STR loophole."

Two ways Tahoe owners blow it: average stay creeps over seven days (ski-season monthly rentals and long summer bookings pull the average up — and it's computed across all stays), or participation is too thin (a full-service manager does everything and you do nothing). This is exactly where being an operator earns its keep. Before a client buys, I'm already modeling occupancy and length of stay for revenue — the same inputs that decide whether the tax strategy is even available. A property that books mostly 10-night stays is a different tax animal than one running 3-night weekend turns. Start with vacation rental income by property type to see how stays and revenue line up.

The Tahoe / California–Nevada wrinkle

On the California side, the income-tax benefit of a big deduction is larger because California's income tax is high (up to 13.3%) — so the same deduction shelters more tax for a CA-taxed earner. But California does not fully conform to federal bonus depreciation, so your California return won't mirror the federal first-year write-off. You get the big number federally and a smaller, slower benefit at the state level.

On the Nevada side (Incline Village, Crystal Bay), there's no state income tax, so there's no state add-back to worry about — but also no state income for the deduction to shelter. The benefit is purely federal. For the broader comparison, see Lake Tahoe property taxes: CA vs. NV.

What I'd tell a client

• Confirm the property can legally be an STR first. A depreciation strategy built on a rental you can't permit is a house of cards. Start with the STR rules by county and the STR investment guide.
• Model length-of-stay before you buy, not after — it drives both revenue and tax eligibility.
• Get the cost-seg study from a reputable firm; a cheap "DIY" study is an audit magnet.
• Remember depreciation recapture. What you deduct now generally gets recaptured at sale — unless you roll it into a 1031 exchange. This works best as a multi-year plan.

If you want help finding a Tahoe property that works as a rental and as a tax strategy, that's the math I do before recommending anything. Call (530) 317-0373 or get in touch. For how this fits with title, 1031s, and financing, see the Lake Tahoe STR investment finance guide.

Frequently Asked Questions

Can short-term rental losses offset my W-2 income?

They can, if the rental is non-passive. That generally requires an average guest stay of seven days or less and material participation by you. If both are met, bonus depreciation and cost-seg losses can offset active income including your salary. The tests are specific — verify with a CPA.

What is the bonus depreciation percentage in 2026?

Under the 2025 tax law, 100% bonus depreciation was restored for qualifying property placed in service after January 19, 2025. Confirm the exact percentage and effective dates for your purchase with your CPA, since the rules changed mid-2025.

What is a cost-segregation study?

It's an engineering-based tax study that reclassifies parts of a property (appliances, flooring, decking, landscaping) into 5-, 7-, and 15-year depreciation categories that qualify for bonus depreciation, accelerating deductions into the early years of ownership.

Does California allow bonus depreciation?

California does not fully conform to federal bonus depreciation, so your California state return generally won't reflect the same first-year deduction as your federal return. Nevada has no state income tax, so the issue doesn't arise there. Confirm current treatment with your CPA.

What happens to the depreciation when I sell?

Depreciation is generally recaptured at sale and taxed, which can offset the upfront benefit. Many investors defer that by rolling the property into a 1031 exchange. Plan the exit alongside the deduction.