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Supercharge your OZ after-tax IRR with cost segregation

June 16, 2026 / 6 min read

Learn how cost segregation can supercharge opportunity zone investments by accelerating depreciation and significantly boosting after-tax IRR for qualified opportunity fund investors that aren’t subject to recapture.

The opportunity zone (OZ) incentive was created to attract investment in specific low-income census tracts. Investor benefits include deferral of capital gains invested in a qualified opportunity fund (QOF), exclusion of 10% of deferred capital gains invested in a QOF for at least five years, and exclusion of gains upon exit from the QOF investment after a more than 10-year hold. The 10-year gain exclusion applies to both gains from appreciation as well as depreciation recapture. Since depreciation isn’t recaptured upon exit to the extent that the OZ 10-year exclusion applies, utilizing a cost segregation study can supercharge a QOF investor’s after-tax internal rate of return (IRR), as explained below.

What is cost segregation?

How can cost segregation supercharge OZ after-tax IRR?

Graph depicting the OZ exclusion with a 10-year holding period.

Here’s how a cost segregation study can benefit QOF investors

Cost segregation is most impactful in projects involving the rehabilitation of nonresidential real property in an opportunity zone. To illustrate the potential benefits of a cost segregation study for such property, assume the following results of the cost segregation study:

Chart displaying the results from a cost segregation study.

Based on the assumptions outlined above, a cost segregation study generates $6,567,308 of additional depreciation deductions over the holding period of the property which aren’t required to be recaptured upon the sale of the property, assuming the investors qualify for OZ tax benefits and the sale occurs more than 10 years after their investment into the QOF. Such additional deductions result in permanent tax savings of $3,007,827. Please note that the above example ignores the time value of money associated with the additional depreciation deductions. Consequently, the value of a cost segregation study is greater than illustrated above.

It’s important to note that the tax benefits of a cost segregation study for any particular project will depend on certain facts and circumstances, such as the nature of the physical improvements made to the building, whether the project is new construction versus rehabilitation, and whether the building is residential rental property versus nonresidential real property.

Tax planning considerations

A cost segregation study can significantly enhance the after-tax IRR of an investment in a QOF, but maximizing the benefit of the cost segregation study requires proactive planning with your tax advisor and special attention to numerous technical nuances. Consider the following:

To learn more about how a cost segregation study could accelerate deductions and generate tax savings for opportunity zone properties, please contact your tax advisor to discuss the specific facts and circumstances of your investments.

 

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