Two investments can produce similar pre-tax returns and very different after-tax outcomes. That is one reason experienced real estate investors pay attention not only to purchase price, cash flow and exit value, but also to depreciation.

For U.S. taxpayers, income-producing real estate generally allows the owner to deduct the cost of the depreciable property over time. Residential rental buildings are generally depreciated over 27.5 years for federal tax purposes, while land is not depreciable.

A cost segregation study can accelerate part of those deductions by identifying building components that qualify for shorter recovery periods. In the right investment, that can create a substantial timing benefit for investors.

Depreciation is a non-cash expense

Depreciation is unusual because it can reduce taxable income without requiring an equivalent current cash expenditure.

Imagine that an apartment property generates positive operating cash flow. For tax purposes, the partnership may also claim depreciation deductions attributable to the building and eligible improvements. As a result, the taxable income allocated to an investor may be lower than the cash distributed to that investor—and in some cases the tax reporting can show a loss even while the investment is distributing cash.

That difference between cash economics and taxable income is one of the distinctive characteristics of real estate investing.

What cost segregation does

Without a cost segregation study, much of the depreciable basis of an apartment property may be treated as long-lived residential rental property.

A cost segregation study examines the property in much greater detail and separates qualifying components into shorter-lived tax categories. Depending on the asset, items such as certain floor coverings, appliances, specialty electrical components, landscaping, site improvements and other qualifying property may be depreciated over shorter recovery periods than the building itself.

The IRS has a dedicated Cost Segregation Audit Technique Guide because the classification of building components can materially affect depreciation deductions. A properly prepared study is therefore not simply an aggressive estimate; it should be a supportable engineering- and tax-based analysis of the actual property.

Why timing matters

A dollar of tax deduction today is generally more valuable than the same deduction many years from now because the investor retains the use of that capital in the meantime.

Accelerating depreciation does not necessarily increase the total amount that can ever be depreciated. Instead, it can move deductions forward into earlier years. That can improve near-term after-tax cash flow and leave more capital available to reinvest.

Current federal law makes the timing particularly relevant. Under legislation enacted in 2025, certain qualified property acquired and placed in service after January 19, 2025 can again qualify for a 100% special depreciation allowance, commonly referred to as bonus depreciation. Whether a particular cost-segregated component qualifies depends on its classification, timing and the taxpayer's circumstances.

In practice, this means some shorter-lived components identified in a cost segregation study may be eligible for very rapid depreciation rather than being written off gradually over many years.

A simple conceptual example

Suppose an investor contributes $100,000 to a multifamily partnership. The investment produces cash distributions during the year, but the partnership also allocates depreciation generated by the property.

The investor's K-1 may therefore report taxable income that is substantially below the amount of cash received—or may report a tax loss.

That does not mean every investor can automatically use that loss against salary, professional income or investment income. The federal passive-activity, basis and at-risk rules can limit when losses are currently deductible. For many limited partners, rental real estate losses are passive and may generally be used against passive income or carried forward until they can be used under the applicable rules.

The economic benefit is therefore investor-specific. The important point is that depreciation can materially change the timing of tax, even when it does not eliminate tax permanently.

Tax deferral is still economically valuable

Tax efficiency is sometimes described too casually as “tax-free cash flow.” That is not the way we think about it.

Depreciation can defer taxable income, and portions of depreciation may be subject to recapture or other tax consequences when a property is sold. Investors may also recognize capital gain on appreciation. The correct analysis therefore considers the entire investment life cycle rather than looking only at the first year's K-1.

But deferral itself can have real value.

If an investor can keep more capital working for several years before paying tax, that retained capital can potentially be reinvested or compounded elsewhere. The benefit is not that tax disappears; it is that the timing of tax can improve the investor's after-tax economics.

Why this matters in underwriting

At The Laager Group, we do not acquire a property because it produces a large depreciation deduction. The real estate must work as real estate first: purchase basis, cash flow, financing, market fundamentals and execution remain primary.

But once an attractive investment has been identified, tax efficiency is an important part of the investor outcome. When appropriate, a professionally prepared cost segregation study can help investors capture depreciation earlier and potentially increase after-tax cash flow during the hold period.

That is why we believe investors should look at more than headline IRR or equity multiple. The amount an investor keeps after tax matters too.