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Cost Segregation
Glossary

Cost Segregation Before Selling a Property

Owners approaching a property sale sometimes wonder whether completing a cost segregation study before closing still makes financial sense. The question is legitimate: the study accelerates depreciation deductions, but selling the property shortly after triggers depreciation recapture on those same deductions. The net economic outcome depends on the remaining time before sale, the magnitude of eligible components, and the applicable tax rates at both the deduction and recapture stages.

This guide evaluates cost segregation before selling in detail, including the mechanics of how a cost segregation study interacts with sale timing, what a cost segregation prior to sale analysis should include, and when the approach makes economic sense versus when it does not. For general context on how cost segregation works, see the main guide.

TL;DR -- Key Takeaway

Cost segregation before selling can generate meaningful tax savings in the tax year prior to the sale year, but only if there is sufficient time and eligible basis to justify the study cost. A lookback study through Form 3115 can capture prior-year depreciation through a current-year deduction, but the recapture triggered at sale must be factored in. The analysis is most favorable when the owner has at least one full tax year between study completion and closing, a high marginal tax rate, and substantial personal property components eligible for reclassification.

Does Cost Segregation Before Selling Make Sense?

Cost segregation before selling can make sense in specific circumstances, but it requires careful analysis. Unlike the acquisition scenario, where there are many years ahead to benefit from accelerated depreciation, cost segregation prior to sale compresses the benefit window to the remaining time before closing.

The key economic question is whether the present-value tax savings from the accelerated deductions in the pre-sale period exceed the study cost plus the incremental recapture that will be recognized at closing. If the answer is yes, the study provides a net benefit even in the context of a near-term sale.

Properties that have never been studied and that still have substantial eligible components (typically commercial properties with significant personal property and land improvements) are the strongest candidates. Properties that were already studied and fully depreciated on eligible classes have no remaining basis to reclassify and would not benefit from a new study.

How Timing Affects the Analysis

The timing between the cost segregation study and the sale closing is the most important variable in evaluating cost seg then sell scenarios. The earlier the study is completed before closing, the more tax benefit can be captured.

  • Study and sale in the same tax year: The accelerated depreciation and the recapture offset in the same year. The net benefit is typically the difference in rate (if ordinary rate exceeds the long-term rate on some gain components), minus the study fee.
  • Study in the year before the sale: The deduction is taken in Year N, providing a tax refund or liability reduction. The recapture is triggered in Year N+1. This one-year gap allows the investor to hold and invest the tax savings for a year before the recapture comes due.
  • Study two or more years before the sale: The benefit grows with each additional year of cash flow advantage before the recapture is triggered.

For a sale scheduled within three to six months, the same-year scenario applies. For a sale planned one to two years out, the analysis becomes more favorable.

Cost Segregation Prior to Sale: The Analysis

A proper cost segregation prior to sale analysis includes the following components:

  • Eligible basis: What portion of the depreciable basis has not yet been reclassified into short-life asset classes? This determines the maximum additional depreciation available.
  • Applicable bonus depreciation rate: If bonus depreciation applies in the current year, the eligible components may be deducted entirely in the year of study. This increases the Year 1 benefit but also increases recapture exposure.
  • Tax rate at deduction: What is the owner's marginal ordinary income rate? Higher rates mean larger dollar savings from the deduction.
  • Tax rate at recapture: What ordinary income rate will apply at exit? If the rate is expected to be lower (due to retirement, for example), the rate arbitrage adds to the net benefit.
  • Study cost: The fee for the cost segregation study reduces the net benefit and must be recovered through the tax savings.

Table 1: Sample Analysis: Cost Seg Before Sale (One-Year Window)

ItemAmountNotes
Eligible basis reclassified$200,000Moved to 5 and 15-year classes
Bonus depreciation (80%)$160,000First-year deduction on eligible portion
Tax savings at 37% rate$59,200Year N tax benefit
Study cost($8,000)Deductible in Year N
Incremental recapture tax at sale (Year N+1)($59,200)At same 37% rate (no rate arbitrage)
Net benefit (pre-time value)($8,000)Study fee is the cost of one-year deferral

In this simplified example, the study essentially funds a one-year deferral of $59,200 in tax for a cost of $8,000. Whether that deferral is valuable depends on what the investor does with the cash during that year. If the investor can earn a return on the deferred tax, the deferral has positive value even at the same rate.

Lookback Study Before Sale

A lookback study allows investors who have owned a property for multiple years to claim depreciation missed in prior years through a current-year deduction via a Section 481(a) adjustment on Form 3115. This can be a significant amount for long-held properties.

Before a sale, a lookback study can produce a large current-year deduction that offsets income in the year the Form 3115 is filed. However, all the depreciation captured in the 481(a) adjustment also becomes recapture exposure on the sale, which closes in the same or following year.

The timing is critical. If the 481(a) adjustment creates a large deduction in Year N and the sale closes in Year N+1, the investor benefits from a year of tax savings before the recapture comes due. If the sale closes in Year N as well, the benefit is compressed into the same tax period.

How a Sale Triggers Depreciation Recapture

The sale of a property with accumulated depreciation triggers recapture in the year of closing. The amount recaptured depends on the accumulated depreciation on each asset class: Section 1245 components (personal property and land improvements) generate ordinary income recapture, while the building's straight-line depreciation generates unrecaptured Section 1250 gain at a maximum 25% rate.

A cost segregation study increases the Section 1245 recapture component because it moves basis into personal property classes that are fully subject to ordinary-rate recapture. Without the study, most of the accumulated depreciation would be building depreciation generating the 25% unrecaptured Section 1250 gain. The difference in rate (ordinary versus 25%) is the recapture rate cost of the study on a per-dollar basis.

Scenarios Where Cost Seg Then Sell Works

Cost segregation before selling makes economic sense in the following scenarios:

  • The property has substantial eligible personal property and land improvements that have not been studied, leaving significant basis available for reclassification.
  • The owner's ordinary income tax rate at the time of the study is higher than the expected rate at sale (creating rate arbitrage in favor of the early deduction).
  • The sale is at least one full tax year away, allowing the deduction to reduce a full year of tax liability before recapture is triggered.
  • The investor plans a 1031 exchange on the replacement property, meaning the recapture on the current sale is itself being deferred.
  • The property will be exchanged in a 1031 and the study establishes detailed component records that simplify the replacement property's depreciation setup.

For property owners in the specific situation of an imminent sale, the more detailed analysis of whether cost segregation makes sense if you are selling soon addresses the edge cases and decision framework for very short hold periods.

Scenarios Where It Does Not Work

Cost segregation before selling does not make economic sense in these situations:

  • The property has already been fully studied and eligible components are already in short-life classes with no remaining basis to reclassify.
  • The sale will close within weeks and the owner's tax rate at deduction equals the rate at recapture, leaving no rate arbitrage and a net negative outcome after the study fee.
  • The property has very few eligible components (for example, a plain-shell warehouse with no specialized systems or site improvements), making the eligible reclassifiable basis too small to justify the study cost.
  • The owner has no taxable income to offset and cannot use the deduction in the current year, with no carryback or carryforward benefit anticipated before the property closes.

For context on the full depreciation recapture framework and how it applies to property dispositions, see the pillar guide. The strategy for what to expect from recapture after a cost segregation study provides additional context on the full economics.

Frequently Asked Questions

Does it make sense to do cost segregation before selling?

It depends on the remaining hold period and the depreciable basis available. If the property has not been studied before, a cost segregation prior to sale can still generate accelerated deductions in the current and potentially prior tax years using a lookback study filed through Form 3115. The benefit must be weighed against the recapture triggered on sale and the study cost.

What does cost seg then sell mean in practice?

Cost seg then sell describes commissioning a cost segregation study shortly before listing or closing on a property sale. The intent is to capture any remaining accelerated depreciation before the disposition date. The deductions are taken in the year of the study, and the recapture is triggered in the year of sale. This works best when there is at least one full tax year between the study and the closing.

Does cost segregation trigger depreciation recapture?

Cost segregation itself does not trigger depreciation recapture. The sale or other taxable disposition of the property triggers recapture. Cost segregation increases the amount of accumulated depreciation, which means more depreciation is available to be recaptured when the property is eventually sold. The trigger is the sale event, not the study.

Can accelerate depreciation deductions be captured in the year before a sale?

Yes. If a cost segregation study is completed in the tax year prior to the sale year, the accelerated depreciation deductions are claimed in that year. The recapture would then be triggered in the subsequent year when the sale closes. This structure provides a one-year benefit on the deduction before the recapture obligation arises.

What is the cost segregation prior to sale analysis?

The analysis compares two scenarios: selling without a study versus selling after completing one. It quantifies the additional depreciation claimable in the remaining holding period, the corresponding tax savings at the owner's marginal rate, the study fee, and the incremental recapture on sale. The net benefit in present value terms determines whether proceeding makes sense.

Should I do a lookback study before selling?

A lookback study using Form 3115 can capture depreciation missed in prior years through a cumulative Section 481(a) adjustment. Before a sale, the value of this adjustment must be weighed against the recapture it will generate on close. If the study generates a large 481(a) adjustment but the property sells within months, the deduction may not provide enough cash flow benefit to justify the cost.

How does cost segregation cost seg before sale affect the closing?

A cost segregation study does not directly affect the closing mechanics of a sale. It is a tax filing matter. The study is used by the tax preparer to update depreciation schedules, and those schedules inform the gain calculation on the tax return for the year of sale. The buyer and seller do not need to coordinate on the study.

What happens to the cost segregation study when I sell the property?

On sale, the detailed component records from the study become the basis for computing the tax gain on each asset class. The study's allocation between personal property, land improvements, and real property determines how the gain is split between Section 1245 recapture, unrecaptured Section 1250 gain, and Section 1231 gain. The study's documentation also supports the tax position if the return is reviewed.

Next: Read the detailed analysis of whether cost segregation makes sense if you are selling soon, including specific hold period thresholds and break-even guidance.