The Bonus Depreciation Phase-Down: How Real Estate Investors Can Save $57,000+ in 2026
You bought a commercial building in 2024 expecting $100,000 in bonus depreciation. In 2026, that number is roughly $20,000 — and nobody sent you a memo. Bonus depreciation is the tax code's provision that lets you deduct a percentage of qualified property's cost in the first year it's placed in service, rather than spreading it over decades. And in 2026, that percentage sits at just 20% — down from 100% five years ago, and scheduled to hit zero in 2027. But here's what your CPA probably hasn't told you: at 20%, bonus depreciation still produces meaningful savings when paired with the right strategies. On a $1.2 million commercial property, combining cost segregation with the current bonus rate can unlock $57,000 or more in year-one deductions your current depreciation schedule is leaving behind.
What Actually Changed in 2026
The Tax Cuts and Jobs Act introduced 100% bonus depreciation on qualified property placed in service between 2018 and 2022. Then the phase-down began:
- 2023 — 80%
- 2024 — 60%
- 2025 — 40%
- 2026 — 20%
- 2027 — 0% (unless Congress extends it)
If you bought a $1.5 million multifamily property in 2023, you could take $300,000 in bonus depreciation on the personal property and improvements alone. The same purchase in 2026 generates roughly $60,000. That's still real money — but to capture it, you can't just wait for your CPA to handle depreciation the way they always have. You need a targeted strategy.
Cost Segregation: Your Best Lever in a 20% World
A cost segregation study is the single most effective tool for maximizing bonus depreciation at any rate — and at 20%, it's even more important because every dollar of reclassified property counts. We've covered cost segregation in depth before in our post on how a cost segregation study turns your building into a $150K deduction, but here's a focused look at how it plays in the 2026 landscape.
Instead of depreciating your entire building over 39 years (commercial) or 27.5 years (residential rental), a cost segregation study breaks the building into components with shorter recovery periods:
- 5-year property: Land improvements, site utilities, carpeting, specialty fixtures
- 7-year property: Office furniture, equipment, some fixtures
- 15-year property: Land improvements like parking lots, fencing, sidewalks
Real example. A surgeon in San Diego owned a $1.2 million medical office building he'd been depreciating straight-line over 39 years — about $30,000 per year. After a cost segregation study, $240,000 of the building was reclassified as 5-year property. At 20% bonus depreciation in 2026, that's an additional $48,000 deduction in year one alone — roughly 10 times the cost of the study.
Combined with regular MACRS depreciation on the remaining building value, his year-one deduction jumped from $30,000 to over $87,000. That's $57,000 in additional deductions he wouldn't have captured without the study.
Section 179 Fills the Gap
While bonus depreciation has dropped, Section 179 remains a powerful alternative. In 2026, you can expense up to $1.22 million in qualified property, with the deduction phasing out dollar-for-dollar once total equipment purchases exceed $3.05 million.
The key difference: Section 179 can create a net operating loss, while bonus depreciation typically can't push you into a loss that offsets non-passive income. For real estate investors with active participation or real estate professional status, Section 179 on tangible personal property — equipment, machinery, certain improvements — can offset ordinary income in ways bonus depreciation can't.
Use Section 179 for:
- Equipment and machinery used in your rental business
- Certain qualified improvement property
- Vehicles over 6,000 lbs (the heavy SUV play)
Use bonus depreciation for:
- Cost-segregated building components (5/7/15-year property)
- Used property acquired in 2026 (bonus applies to used property too)
- When you want to preserve your Section 179 limit for other purchases
They're not mutually exclusive. Stack them.
Qualified Improvement Property — Still in Play
Qualified Improvement Property — interior improvements to non-residential buildings like retail spaces, restaurants, and medical offices — was corrected to 15-year MACRS life under the CARES Act. That classification makes QIP eligible for both bonus depreciation and Section 179.
In 2026, a $500,000 buildout on a medical practice or retail space generates a $100,000 bonus depreciation deduction — 20% of the $500,000. Because QIP is 15-year property, the remaining $400,000 depreciates over 15 years instead of 39. That's roughly $26,000 per year versus $12,800.
If you're improving leased space or renovating a commercial property in 2026, QIP is a deduction you should not leave on the table.
The Multi-Property Play
For investors with multiple properties, the strategy compounds. A cost segregation study on each property individually — even at 20% bonus — can produce $40,000 to $60,000 in year-one deductions per property.
Consider an investor with three properties purchased or renovated in 2026:
| Property | Value | Cost-Seg Reclass | Bonus Deduction |
|---|---|---|---|
| Medical office (San Diego) | $1.2M | $240,000 | $48,000 |
| Retail strip (Frisco, TX) | $800K | $160,000 | $32,000 |
| Short-term rental (Panama City Beach) | $600K | $120,000 | $24,000 |
| Total | $2.6M | $520,000 | $104,000 |
That's $104,000 in bonus depreciation across three properties in a single year — even at 20%. Pair that with cost segregation's regular accelerated depreciation on the remaining reclassified amounts, and year-one deductions can approach $150,000 or more.
The key is timing. The study needs to happen in the same tax year the property is placed in service. If you bought a property in Q1 2026 and haven't done a study yet, there's still time. If you bought in 2025 and didn't do one, you can file a Form 3115 adjustment to capture the missed depreciation in 2026.
FAQ
Can I still claim bonus depreciation on used property in 2026?
Yes. Bonus depreciation applies to both new and used qualified property acquired and placed in service in 2026. The 20% rate is the same regardless of whether the property was previously owned.
What properties qualify for a cost segregation study?
Any commercial, industrial, or residential rental property valued at $500,000 or more is typically a strong candidate. Multifamily buildings, medical offices, retail spaces, warehouses, and self-storage facilities all benefit from cost segregation studies.
How much does a cost segregation study cost, and what's the ROI?
A professional cost segregation study typically costs $5,000 to $15,000 depending on property complexity. At 20% bonus in 2026, a study on a $1.2M property can produce $48,000 or more in year-one deductions, yielding roughly 5 to 10 times ROI in the first year alone.
Can I combine Section 179 and bonus depreciation on the same property?
Yes, but not on the same asset. Use Section 179 for tangible personal property like equipment and vehicles, and bonus depreciation for real property components reclassified through cost segregation. A coordinated strategy uses both.
What happens if I sell a property after claiming bonus depreciation?
The accelerated deductions are recaptured upon sale. Part of the gain may be taxed as ordinary income under Section 1245 recapture for personal property or as unrecaptured Section 1250 gain for real property. The time value of the deferred taxes still makes the strategy highly beneficial.
Does bonus depreciation affect real estate professional status calculations?
No. Depreciation deductions, including bonus, do not factor into the material participation tests used to qualify for real estate professional status. They only affect your taxable income after status is established.
Ready to stop leaving deductions on the table? Most CPAs file your return and disappear. We build year-round tax strategies for high-income earners and real estate investors — including cost segregation studies, entity structuring, and depreciation planning your current firm probably never mentions. Book a free 30-minute strategy session — no obligation, just straight answers about what you've been leaving on the table. Call (619) 280-2700 or email info@RoadmapTax.com.
