Cost segregation and accelerated (bonus) depreciation are real federal tax strategies that can materially change a rental property's near-term tax position - separating a building into components that depreciate faster than the building itself. The underlying concept is well established; the specific percentages, phase-down schedules, and eligibility rules have changed through several rounds of recent federal legislation, so every specific figure in this guide should be confirmed with a CPA against current-year IRS rules before being used to make an actual tax decision.
| Standard depreciation | Residential rental real estate is generally depreciated straight-line over a set recovery period under current federal rules |
|---|---|
| Cost segregation | An engineering-based study reclassifying specific building components (certain fixtures, land improvements) into shorter recovery periods |
| Bonus depreciation | UNVERIFIED - a federal provision allowing accelerated first-year deduction of a percentage of qualifying reclassified costs; the applicable percentage has changed through several rounds of legislation and must be confirmed for the current tax year |
| Depreciation recapture | Accelerated depreciation generally must be 'recaptured' (partially added back to taxable income) on eventual sale - a real offsetting cost to weigh against the upfront benefit |
A study, typically performed by a specialized engineering or accounting firm, that breaks a rental property's purchase price down into individual components - certain electrical, plumbing, flooring, and site improvements, for example - some of which qualify for a much shorter tax depreciation life than the building as a whole. The result is a larger depreciation deduction in the earlier years of ownership than standard straight-line depreciation alone would produce.
UNVERIFIED - CPA REQUIRED: this is a real tax strategy with real IRS scrutiny risk if done incorrectly or claimed without a proper study - it is not something to attempt without a qualified professional and a defensible engineering-based study, not a rough estimate.
Bonus depreciation is a federal provision that has, at various points, allowed a large percentage of certain qualifying costs to be deducted immediately in the year placed in service, rather than depreciated over years - and cost segregation is often what identifies which components of a property purchase actually qualify for it.
UNVERIFIED - THE SPECIFIC PERCENTAGE CHANGES: the applicable bonus depreciation percentage has been on a legislated phase-down schedule and has also been the subject of subsequent federal legislation restoring or changing that schedule - do not state a specific current-year percentage without confirming it directly against current IRS guidance for the tax year in question.
An owner with a meaningful federal tax liability who plans to hold the property for a period of years, since the strategy accelerates deductions into earlier years rather than creating new deductions - it is a timing benefit, and its value depends heavily on the owner's specific tax situation, which is why this is not a one-size-fits-all recommendation.
UNVERIFIED - CPA REQUIRED: federal passive activity loss rules generally limit an owner who is not a real estate professional from using the resulting paper loss to offset W-2 or other ordinary income, which is one of the most common reasons a cost segregation study disappoints an investor who expected a larger practical benefit than the rules actually allow. Confirm how the passive loss rules apply to the specific owner's situation before assuming the full deduction is usable against other income.
When a property is eventually sold, the IRS generally requires a portion of the depreciation claimed - including accelerated amounts from cost segregation - to be 'recaptured,' meaning added back to taxable income at sale, often at a specific recapture tax rate. This is a real, calculable offset against the upfront benefit of accelerating depreciation, and a full evaluation of whether cost segregation makes sense for a specific property should weigh the eventual recapture, not just the near-term deduction.
It generally can apply to a property recently purchased (including an existing, previously built property, not just new construction), and can sometimes be applied retroactively to a property already owned through a 'look-back' study - though the specific rules and timing for a look-back study are a further technical detail to confirm with a CPA rather than assume applies uniformly.
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