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Cost Segregation

Cost segregation identifies building components that qualify for shorter depreciation periods than the building itself. It changes deduction timing and requires support for the classifications and costs.

real estatedepreciationadvanced strategy

A study allocates basis among the building, eligible personal property and land improvements. Land is not depreciable. Shorter-lived components may qualify for accelerated deductions when the relevant requirements are met.

Compare the study cost, usable deductions, passive-loss restrictions, state treatment and possible recapture on sale. Owning rental property does not by itself make someone a real estate professional or permit rental losses to offset wages.

An example

Hypothetical: a property owner obtains a supported allocation for eligible equipment and land improvements. The owner still needs to determine whether the resulting losses are currently usable before treating the accelerated deduction as a cash benefit.

Reviewed October 7, 2026. IRS reference ↗

This is a general reference. Discuss how the rules apply to your business with your tax professional.