What are the tax advantages of performing a cost segregation study on investment property?

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The result is accelerated depreciation, which can create substantial near-term tax savings.

For investors, developers, partnerships, and property owners, the primary advantage is timing. Depreciation is not an out-of-pocket expense, yet it reduces taxable income. A properly executed cost segregation study allows owners to recognize larger deductions earlier in the life of the property, improving liquidity and freeing up capital for reinvestment, debt reduction, renovations, or acquisitions.

Below are some of the most significant tax advantages associated with a cost segregation study real estate strategy.

1. Accelerated depreciation deductions

The most immediate benefit is the ability to reclassify certain building components into shorter recovery periods. Items such as carpeting, specialty lighting, cabinetry, decorative finishes, parking lots, sidewalks, landscaping, and certain electrical systems may qualify for accelerated depreciation instead of being depreciated over decades.

For example, under Internal Revenue Code Sections 1245 and 1250, portions of a building may be classified as personal property or land improvements rather than structural components.

• Increased first-year write-offs through bonus depreciation

Recent federal tax legislation restored 100% bonus depreciation for eligible assets acquired after January 19, 2025. That change dramatically increased the value of cost segregation study benefits because qualifying five-, seven-, and 15-year assets may now be fully deducted in the year they are placed in service.

A property owner purchasing a $5 million apartment complex, for instance, may discover through a study that $1.5 million qualifies for shorter-life treatment. Assuming eligibility requirements are met, that $1.5 million could potentially be deducted immediately rather than spread over decades.

• Improved cash flow

Reducing taxable income early in ownership preserves working capital. This is particularly valuable for real estate investors managing leverage, capital improvements, or expansion plans.

In many cases, the increased cash flow generated from accelerated depreciation becomes more valuable than the deduction itself because it provides flexibility during the critical early years of ownership.

• Opportunities for residential rental property owners

A cost segregation study residential rental property analysis can be especially effective for apartment complexes, student housing, senior living communities, and short-term rental portfolios because these properties often contain a significant amount of assets that may qualify for shorter MACRS recovery periods.

Residential rental properties may include components such as appliances, carpeting, cabinetry, decorative finishes, certain electrical or plumbing systems, and land improvements that can qualify for accelerated depreciation treatment when properly identified and classified.

• Ability to perform look-back studies

A study does not have to occur in the acquisition year to provide value. Property owners who missed the opportunity initially may still perform a retroactive study and file IRS Form 3115, Application for Change in Accounting Method.

This allows taxpayers to “catch up” missed depreciation deductions in the current year without amending prior returns.

• Stronger audit support through engineering-based analysis

The IRS scrutinizes aggressive depreciation positions, which makes documentation critical. Engineering-based studies supported by construction records, site inspections, cost detail, and tax authority guidance provide significantly stronger audit defensibility.

A quality study should include:

• Asset classifications
 • Supporting tax authority references
 • Engineering methodology
 • Photographs and cost detail
 • Allocation schedules

This documentation helps substantiate the depreciation treatment if challenged.

• Tax planning flexibility during renovations and conversions

Major renovations or adaptive reuse projects often create additional depreciation opportunities. Converting office space into apartments, renovating hospitality properties, or expanding mixed-use developments may justify a new analysis.

In many situations, the tax savings generated from newly identified shorter-life assets can offset a meaningful portion of renovation costs.

• Estate and succession planning advantages

Cost segregation may also create estate-planning opportunities. When depreciable real estate is inherited, heirs may receive a stepped-up basis equal to the property’s fair market value at death under current tax rules. The heirs may then begin a new depreciation schedule based on that stepped-up basis.

• Potential alignment with other tax incentives

A study may uncover additional federal tax opportunities tied to energy efficiency and construction improvements.

These can include:

• Section 179D deductions for energy-efficient commercial buildings
 • Section 45L credits for qualifying residential construction
 • State-level incentive programs
 • Additional depreciation planning opportunities

For investors already working with Tax Credits & Incentives Services, combining these strategies can increase the overall tax impact of a project.

1. Better long-term tax strategy integration

Cost segregation should not exist in isolation. It works best when coordinated with broader Real Estate Accounting Services, entity structuring, financing decisions, disposition planning, and multistate tax considerations.

While accelerated depreciation creates immediate advantages, investors must also evaluate future depreciation recapture exposure, potential 1031 exchange implications, and holding period strategy.

For many property owners, however, the present-value benefit of accelerating deductions substantially outweighs future recapture concerns, especially when assets are held long term.

A cost segregation study is not appropriate for every property. Smaller projects with limited depreciable basis may not justify the cost of the analysis, and short holding periods can reduce overall benefit. Still, for many real estate investors, the strategy remains one of the most powerful tools available to improve after-tax cash flow and maximize real estate investment performance.

How BT Can Help

For more than four decades, Bennett Thrasher has provided businesses and individuals with strategic business guidance and solutions through professional tax, audit, advisory, and business process outsourcing services. Contact Rick Suid, Partner in Bennett Thrasher’s Financial Reporting & Assurance practice with extensive Real Estate industry experience, or call us at 770.396.2200.

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