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Self storage cost segregation sorts your facility's cost by tax life. Paving, fencing, gates, lighting, and the metal buildings move to 5- and 15-year lives — out of the 39-year bucket. So much of a storage site is site work and simple structures that a large share of the basis reclassifies.
Site work dominates. Structures are simple. Systems are short-life. With 100% bonus depreciation permanent after Jan 19, 2025, most of it is deductible year one.
The land improvements and systems move to the shorter lives the code already assigns them: paving and fencing as 15-year land improvements, and the rest sorted under the IRS Cost Segregation Audit Techniques Guide.
100% bonus depreciation is permanent for property acquired and placed in service after January 19, 2025, per Notice 2026-11 — so that share is deductible in year one, not spread over decades.
Cost segregation pays in proportion to how much of a property is short-life. Storage is mostly short-life.
Paving, drive aisles, fencing, and exterior lighting are 15-year land improvements — and a big slice of your total basis. Often the single largest reclassifiable category on a storage site.
Almost no interior finish. More of a metal storage building's total cost sits in site work and systems a study can separate out. The load-bearing shell (foundation, walls, roof) stays on 39-year; site work and systems reclassify.
Gates, keypads, access control, surveillance — personal property, not building. Short-life category means most of the tech-and-security stack qualifies for accelerated depreciation.
Climate-controlled facilities carry HVAC, tighter electrical, and more access and monitoring — all short-life, on top of the same site work. Larger reclassification share than drive-up sites.
We work from your basis, contractor invoices, and fixed-asset list. Engineering-based estimates fill any gap so every classification is supportable.
Each component tied to its correct tax life with the authority behind it — Pub 946 for land improvements, ATG for §1245 vs §1250 calls. Documentation is what makes the deduction hold under IRS review.
Applied on the current return for a facility you just placed in service, or through a change in accounting method for one you have held a while. Look-back claims the catch-up as a §481(a) adjustment — no amended returns needed.
Why Self-Storage Owners Trust Dimov Tax
Dimov Tax runs the study AND the return together, so the deduction is checked against your position before filing: passive or active, and what a sale does to recapture.
The cost is based on the facility's size and basis, whether it's one site or a portfolio, climate-controlled or drive-up, and whether the study is current-year or a look-back. We quote after a short look — and it runs a fraction of the first-year deduction it frees up.
Portfolio bulk pricing: multi-site engagements get scoped as one project. The economics improve because the classification framework carries across sites — but each facility still gets its own defensible documentation.
The year-one federal deduction is dramatic. The state result can be smaller if you're in a non-conforming state — California is the most common one that doesn't accept bonus depreciation. That's part of what we model before you commit.
Two other traps: recapture on sale — Section 1245 depreciation comes back as ordinary income, so if a sale is near, we model it in from the start. And passive-loss suspension — a big first-year deduction is worth less if the loss is passive and you have no passive income to absorb it. Real estate professional status and material participation decide whether it works now or waits.
Sources: IRS Publications 544 and 946; IRS Cost Segregation ATG; Notice 2026-11; Form 3115 Instructions
A good fit if you:
If two or three fit your facility, a study is likely worth running. Fee framework: see how much does a cost segregation study cost. Another high-reclassification vertical: restaurant cost segregation.
Send the facility, its cost, and the date it went into service. We will tell you whether there is real deduction in the site work and buildings — and if not, we say so straight rather than running up a study.
Feasibility read first. Storage doesn't wait forever — the look-back only reaches as far as your records allow.
