In real estate investing circles, the phrase “paper loss” comes up constantly. It refers to a tax loss generated not by losing money, but by depreciation deductions that exceed the property’s net cash income, producing a loss on the tax return while the investor’s bank account shows positive cash flow. The mechanism behind these paper losses is the cost segregation study, and with 100% bonus depreciation now permanently reinstated under the One Big Beautiful Bill Act, the first-year deductions available to real estate investors are larger and more accessible than at any point in the past decade.
AE Tax Advisors, a boutique Montana-based tax advisory firm, has made cost segregation implementation a core part of its real estate tax practice. The firm has commissioned studies on hundreds of properties across every asset class, from single-family rentals to multi-million-dollar commercial buildings, and the results consistently demonstrate that cost segregation is the single highest-impact tax strategy available to real estate investors.
About AE Tax Advisors
AE Tax Advisors works exclusively with business owners and investors earning $500,000 or more annually. The firm’s real estate tax practice integrates cost segregation, entity structuring, and activity classification to ensure every property in a client’s portfolio is producing the maximum defensible tax benefit. The firm works with nationally recognized engineering firms that conduct physical inspections and produce IRS-compliant reports.
The Engineering Analysis Behind the Deduction
A cost segregation study is an engineering-based analysis that examines a building’s components and reclassifies them from the standard depreciation schedule into shorter recovery periods. Under normal rules, a residential rental is depreciated over 27.5 years and a commercial building over 39 years. These long schedules produce modest annual deductions. The study identifies components the IRS allows to be depreciated more rapidly. Cabinetry, countertops, and decorative fixtures typically fall into the 5-year category. Certain electrical, plumbing, and mechanical systems qualify for 7-year treatment. Landscaping, driveways, sidewalks, and site improvements are classified as 15-year property.
A properly conducted study identifies 20% to 40% of the building’s depreciable value as eligible for reclassification. With 100% bonus depreciation now permanent under the OBBBA, that entire reclassified amount can be deducted in the first year. AE Tax Advisors emphasizes that studies must be performed by qualified engineering firms that conduct physical inspections. The methodology has been upheld repeatedly in tax court, but desktop estimates or percentage-based shortcuts do not meet IRS documentation standards and can expose the investor to penalties. The firm works exclusively with engineering partners that produce audit-grade reports and stand behind their classifications in examination.
How the Numbers Work on a $1 Million Property
Consider an investor who purchases a $1 million commercial property. After subtracting land value, the depreciable building is worth $800,000. Under the standard 39-year schedule, annual depreciation is approximately $20,500. A cost segregation study identifies $240,000, or 30% of the building value, as eligible for accelerated depreciation. With 100% bonus depreciation, that $240,000 is deducted in full in year one. Standard depreciation on the remaining $560,000 adds another $14,300. Total first-year depreciation is approximately $254,300.
If the property generates $80,000 in net rental income after operating expenses, the depreciation creates a paper loss of approximately $174,300. The investor collected $80,000 in cash while their tax return shows a $174,300 loss. At the top marginal rate, that paper loss produces approximately $65,000 in tax savings. For investors who own multiple properties, these losses compound. AE Tax Advisors has clients whose portfolios of three to five properties generate combined paper losses exceeding $500,000, producing annual tax savings that exceed $185,000. The strategy works across virtually every property type. Single-family rentals, multi-family buildings, office space, retail, industrial, and mixed-use properties all contain reclassifiable components. The percentage varies by property type and construction quality, but AE Tax Advisors has never commissioned a cost segregation study that failed to produce meaningful savings.
Who Can Use the Loss and How
The ability to use a paper loss depends on how the property and investor are classified. For investors who qualify as Real Estate Professionals under IRC Section 469(c)(7), spending 750 or more hours annually in real estate activities and more than half of their working time in real estate, rental losses are non-passive and can offset any income. For short-term rental owners with an average guest stay of seven days or fewer and material participation, losses are also non-passive without requiring REPS.
For investors who do not meet either threshold, losses remain passive and can only offset passive income from other rental properties or investments. However, accumulated passive losses carry forward indefinitely and are fully released when the property is sold. AE Tax Advisors models each client’s activity classification and recommends the most tax-efficient ownership and participation structure for every property in their portfolio.
The Catch-Up Opportunity for Existing Properties
Investors who purchased properties in prior years without a cost segregation study are not limited to prospective benefits. AE Tax Advisors files IRS Form 3115, a change in accounting method, to capture all missed accelerated depreciation from prior years in a single Section 481(a) catch-up adjustment. This produces a one-time deduction in the current year that reflects every dollar of depreciation that should have been claimed but was not. For a property purchased five years ago, the catch-up can produce a six-figure deduction in a single year without amending any prior returns. AE Tax Advisors files Form 3115 for existing properties as a standard part of every new client engagement. The firm reviews the depreciation schedule on every property the client owns and identifies which ones would benefit from a cost segregation study and catch-up adjustment. In many cases, the catch-up deduction from existing properties produces larger first-year savings than the cost segregation on newly acquired properties.
The depreciation recapture at sale is real tax that must be factored into the analysis, taxed at ordinary income rates up to 25% under IRC Section 1250. However, the present value of the upfront savings dramatically exceeds the future cost of recapture. When combined with a 1031 exchange to defer recapture indefinitely, or a stepped-up basis at death to eliminate it permanently, the economic case for cost segregation becomes overwhelming.
What This Means for Investors Who Own Real Estate Without a Cost Segregation Study
If you own investment real estate and have not had a cost segregation study conducted, you are almost certainly overpaying your taxes. The savings are not marginal. They are measured in tens or hundreds of thousands of dollars per property. AE Tax Advisors reviews every client’s real estate portfolio and identifies properties where cost segregation will produce meaningful savings, including the Form 3115 catch-up for properties already in service.
The savings are not marginal. They are measured in tens or hundreds of thousands of dollars per property, and for investors with portfolios of multiple properties, the cumulative impact can reshape their entire tax picture. AE Tax Advisors has clients who entered their first engagement paying effective tax rates above 40% and, within the first year of implementing cost segregation across their portfolio, reduced that rate to below 20% on the same income. The properties still cash flow. The assets still appreciate. The only thing that changes is the tax bill.
To learn more about AE Tax Advisors, visit: https://www.aetaxadvisors.com