How Real Estate Investors Can Use the One Big Beautiful Bill

By LocateMyWealth Research · Published September 8, 2026 · Last updated September 8, 2026

This content is for educational purposes and is not individualized tax, legal or investment advice. Tax rules depend on individual circumstances. Consult a qualified tax professional.

Real estate investors have paid close attention to the One Big Beautiful Bill Act (OBBBA) because depreciation timing is one of the most powerful levers in rental property economics. But the headlines about "100% bonus depreciation" can create a misleading impression that an entire property purchase can be written off immediately. It cannot. This article walks through what actually changed, what still does not qualify, and the guardrails — cost segregation mechanics, passive activity loss rules, and the 163(j) real property election — that determine how much of the benefit an individual investor can actually use.

This is general education about the tax law, not individualized advice for your portfolio.

What Changed for Real Estate Under OBBBA

Three provisions matter most for real estate investors:

1. Bonus depreciation restored to 100%. OBBBA reset the Section 168(k) bonus depreciation rate to 100% for qualifying property acquired and placed in service after January 19, 2025, removing the scheduled phase-down toward zero that was underway under the TCJA 1 2.
2. The Section 163(j) business interest limitation reverted to an EBITDA basis, permanently. For tax years beginning after December 31, 2024, adjusted taxable income for the 30% interest limitation test is again computed by adding back depreciation and amortization, which generally allows a larger interest deduction for leveraged real estate businesses 3 4.
3. Opportunity Zones made permanent, with a new framework starting in 2027. The program was set to sunset after 2026; OBBBA extends it indefinitely and introduces "OZ 2.0" rules — including a rolling deferral mechanism and updated zone designations — effective January 1, 2027 5 6.

None of these provisions change the fundamental structure of real property depreciation. That structure is the part investors most often misunderstand.

The 27.5-Year Shell Still Does Not Qualify for Bonus Depreciation

This is the single most important point in this article: the building structure itself is not bonus-depreciation-eligible property.

Under long-standing depreciation rules, residential rental real property is depreciated straight-line over 27.5 years, and most nonresidential (commercial) real property is depreciated straight-line over 39 years. Bonus depreciation under Section 168(k) only applies to property with a recovery period of 20 years or less — items like machinery, equipment, certain land improvements, and specific interior components identified separately from the building shell. OBBBA's restoration of the 100% bonus rate did not change which asset classes qualify; it only changed the applicable percentage for property that was already eligible 1.

In other words: buy a $400,000 rental house, and the land and the structural shell (foundation, framing, roof, windows, exterior walls, and most of the plumbing and electrical systems serving the whole building) still depreciate over 27.5 years no matter what OBBBA did. Only the components that a cost segregation study separately identifies — and that independently have a shorter MACRS recovery period — can be depreciated faster, and now potentially all in year one under 100% bonus depreciation.

What a Cost Segregation Study Actually Does

A cost segregation study is an engineering-based analysis performed by specialists (often engineers working with a CPA) that inspects a property and allocates portions of the purchase price to shorter-lived asset categories that would otherwise be lumped into the 27.5- or 39-year building bucket. The study does not create new deductions out of nothing — it reclassifies costs that were always there, so the depreciation that would have been spread over decades on certain components is instead available in the years those components' recovery periods dictate, and under OBBBA's restored 100% bonus rate, that acceleration can now mean claiming the entire reclassified amount in the year the property is placed in service.

Cost segregation studies typically make the most economic sense when:

• The property has a meaningful purchase price (many practitioners note the study's fee is more easily justified above a certain property value).
• The investor expects to hold the property long enough that recapture on sale is an acceptable tradeoff.
• The investor can actually use the resulting losses currently (see the passive activity loss discussion below) — otherwise the deductions are simply deferred rather than lost, which reduces their present-day value.

Worked Example: Component Allocation on a Rental Purchase

The following is an illustrative, simplified example using round numbers. It ignores state tax, closing costs, and land value assumptions specific to any real property, and is not a projection for any actual property.

Assume an investor buys a $500,000 single-family rental, with $100,000 allocated to land (non-depreciable) and $400,000 to the building and its components. Compare no cost segregation study versus a cost segregation study that reallocates part of the building cost.

Without a cost segregation study:

With a cost segregation study:

In this simplified illustration, the cost segregation study does not change the total depreciation available over the life of the property — it changes when it is available. The dramatic year-one increase (from roughly $14,500 to roughly $101,000) comes from the reclassified components qualifying for 100% bonus depreciation, while the building shell itself keeps depreciating slowly over 27.5 years regardless.

The Passive Activity Loss Rules Still Apply

A large year-one deduction is only valuable if you can use it. Under the passive activity loss (PAL) rules, rental real estate is generally treated as a passive activity, meaning losses from it can typically only offset passive income from other activities — not wages or active business income — unless one of two exceptions applies:

• Real estate professional status: the taxpayer spends more than half of their working time and more than 750 hours per year materially participating in real property trades or businesses in which they materially participate, which then allows rental losses to offset non-passive income.
• The $25,000 active participation allowance: available to taxpayers who actively participate in a rental activity, but it phases out as modified adjusted gross income rises above certain thresholds and is unavailable to higher-income taxpayers.

OBBBA did not eliminate the passive activity loss rules. An investor who generates a large bonus-depreciation-driven loss through cost segregation but does not qualify for either exception may find that loss suspended and carried forward rather than usable in the current year. This is one of the most common points of confusion — and disappointment — for investors who assume bonus depreciation automatically produces an immediate tax refund.

The Business Interest Limitation and the Real Property Trade or Business Election

Real estate is often financed with significant debt, which makes Section 163(j) relevant. OBBBA's permanent restoration of the EBITDA-based adjusted taxable income computation (rather than the stricter EBIT basis used from 2022–2024) generally increases the amount of business interest expense a leveraged real estate operation can deduct 3.

Separately, real property trades or businesses have long had the option to elect out of the 163(j) limitation entirely under Section 163(j)(7). The tradeoff: an electing real property trade or business must depreciate its residential rental property and other applicable real property under the longer Alternative Depreciation System (ADS) lives, and — critically — real property depreciated under ADS is generally not eligible for bonus depreciation. In effect, the election trades away bonus depreciation on real property in exchange for an unlimited interest deduction.

Whether that trade makes sense depends on:

• How much debt the property carries relative to its income (highly leveraged deals may value the interest deduction more).
• How much bonus depreciation the investor would otherwise generate through cost segregation.
• Whether the investor already faces passive loss limitations that would make the bonus depreciation less useful in the near term anyway.

This is a structural, often irrevocable-feeling decision that should be modeled with a CPA before a property closes, not after.

Opportunity Zones: The 2027 Framework

Investors have used Qualified Opportunity Funds (QOFs) since 2018 to defer and potentially reduce capital gains by reinvesting them into designated low-income communities. OBBBA made the program permanent instead of letting it expire after 2026, but it also restructured the mechanics for investments made under the new framework beginning January 1, 2027 — including a rolling deferral period tied to the investment date rather than a fixed sunset, updated zone eligibility criteria, and enhanced incentives for rural Qualified Opportunity Funds 5 6 7.

For real estate investors specifically, QOF investments have generally required substantial improvement of acquired property (roughly doubling the basis in the building within a set period) to qualify, and that structural requirement is expected to carry into the new framework in some form. Investors evaluating a QOF investment near the 2026/2027 transition should ask their CPA whether investing under the current rules or waiting for the 2027 framework better fits their capital gain timing and target property. For a broader look at sourcing the underlying deals, see our guide on how to find undervalued properties and our overview of real estate tax strategies.

Questions to Ask Your CPA

• Does my planned property purchase qualify for a cost segregation study, and does the study's cost make sense relative to my purchase price and expected holding period?
• Based on my current income and involvement in the property, do the passive activity loss rules limit how much of a bonus-depreciation-driven loss I can actually use this year?
• Do I qualify as a real estate professional, or does the $25,000 active participation allowance apply to me at my income level?
• Given my leverage on this property, would electing out of Section 163(j) as a real property trade or business (and giving up bonus depreciation on the real property) produce a better after-tax result than staying subject to the interest limitation?
• If I'm considering a Qualified Opportunity Fund investment, should I invest before or after the January 1, 2027 transition to the new framework?
• How does my state treat bonus depreciation and cost segregation — does my state conform to the federal rules, or does it require an addback?
• What is my realistic depreciation recapture exposure when I eventually sell, given the accelerated deductions I'm claiming now?

Because so much of the real benefit here depends on your income level, participation in the property, financing structure, and state tax rules, these are exactly the questions to bring to a qualified tax professional before you commission a cost segregation study or make an Opportunity Zone commitment. To model the cash-flow and return impact of different depreciation and financing scenarios yourself first, try LocateMyWealth's Tax Strategy Planner and Rental ROI Calculator. Business owners evaluating equipment purchases and R&D expensing alongside their real estate holdings may also want to read our companion article on OBBBA business tax opportunities, and every investor building a broader plan should start with our real estate investing pillar guide.