Inheriting a rental property comes with a real tax advantage that most people don’t fully appreciate: a stepped-up basis. Under Section 1014, the property’s basis resets to its fair market value on the date of death, not what the person who left it to you originally paid. If they bought a duplex in 1998 for $120,000 and it’s worth $700,000 the day you inherit it, you start with a $700,000 basis and a clean depreciation slate. Their accumulated depreciation doesn’t carry over to you, and it isn’t recaptured on your return.
So the natural question is: can you run a cost segregation study, reclassify a chunk of that fresh basis into short-life property, and take the 100% first-year bonus write-off that’s back on the table for 2025 and 2026? The stepped-up basis part is as good as it sounds. The bonus depreciation part is where inherited property trips people up.
What the stepped-up basis actually gives you
Two things, both valuable. First, your depreciable basis is usually much larger than the decedent’s was. Decades of appreciation get baked into your starting number, and decades of their prior depreciation simply vanish rather than following the asset to you. Second, the clock restarts. You place the property in service when you inherit it or convert it to a rental, on a fresh 27.5-year residential schedule; you are not picking up the middle of someone else’s depreciation timeline.
That larger, reset basis is exactly what a cost segregation study works on. The bigger the building basis, the more dollars there are to move out of the slow 27.5-year bucket and into the 5-, 7-, and 15-year buckets.
So can you take bonus depreciation on an inherited rental?
Usually not, and it’s worth understanding before you count on a big first-year number. Bonus depreciation under Section 168(k) is only available on property that was “acquired by purchase” as defined in Section 179(d). Property whose basis is its fair market value at death, that is, inherited property under Section 1014, is specifically excluded from that definition. Inheritance is not a purchase.
This catches people because the headline is true: 100% bonus depreciation was restored for property acquired after January 19, 2025. But “acquired” there means acquired by purchase. The inherited building, and the components inside it that you inherited, don’t clear that bar. So while a study can still reclassify them into shorter recovery periods, those reclassified inherited dollars generally get depreciated over their 5-, 7-, and 15-year schedules rather than written off all at once.
Then is a study still worth running?
Often, yes, because accelerating into 5-, 7-, and 15-year property is valuable even without bonus. Five-year property under normal MACRS throws off 20% of its basis in year one, 32% in year two, and so on. Compare that to the roughly 3.6% a year the same dollars would earn sitting in the 27.5-year bucket. The study still front-loads years of deductions; it just spreads them over the first several years instead of dropping them all in month one.
The math on a $700,000 inherited rental
Say you inherit a single-family rental valued at $700,000 on the date of death. Strip out 20% for land and you’re left with $560,000 of building basis on a fresh 27.5-year schedule. A reasonable residential study reclassifies around 22% of that, roughly $123,000, into short-life property, split across 5-year components (appliances, carpet, fixtures) and 15-year land improvements (driveway, landscaping, fencing).
Left alone in the 27.5-year bucket, that $123,000 would generate about $4,500 of depreciation in year one. Reclassified into the shorter buckets, even with no bonus, it produces roughly $16,000 in year one. That’s about $11,700 of extra first-year deduction, or roughly $3,700 in year-one federal tax savings at a 32% marginal rate. More to the point, over the first five years the reclassification pulls roughly $62,000 of deductions forward that would otherwise have trickled out over decades. That timing difference is the whole point: a dollar deducted now is worth more than the same dollar deducted in 2050.
Where bonus depreciation can still show up
There’s an important exception. If you renovate the property after inheriting it, a new roof, new HVAC, a kitchen remodel, new appliances, those are components you acquired by purchase, not by inheritance. Improvements you pay for and place in service can qualify for bonus depreciation in the normal way, even though the inherited shell around them cannot. If you inherited a dated rental and put real money into rehabbing it, a study done after the work can accelerate those rehab dollars aggressively. We walk through that mechanic in our post on cost segregation for a BRRRR or major renovation.
Partnership-held property adds a wrinkle: a Section 754 election can create a step-up for the inheriting partner that behaves differently from a direct inheritance. That’s a conversation for your CPA.
The number everything rests on: the date-of-death value
Because your entire depreciable basis is the date-of-death fair market value, the land-versus-building split on that valuation sets the ceiling on everything a study can do. A defensible appraisal, not just the county assessor’s land ratio, is worth getting right, both to maximize the building basis and to keep the whole position audit-ready. We cover that split in detail in our piece on land value allocation and cost segregation. You can also run rough numbers yourself with the savings estimator on our homepage.
Is it worth it? For a modest inherited property with no renovation, the acceleration without bonus is real but not dramatic. For a higher-value property, or one you’re about to put money into, the combination of a large stepped-up basis and a study often pencils clearly. The honest answer depends on the value, the land split, and what you plan to do with the property, which is exactly what the free instant estimate is for — and we're glad to talk it through by phone.