What Happens to Cost Segregation Assets When You Convert a Rental to Personal Use?

Conversion is not a taxable event

When you convert a rental property to personal use — moving in yourself, using it as a vacation home, or leaving it vacant without rental intent — the conversion is not a taxable disposition. You do not recognize gain, loss, or depreciation recapture at the time of conversion.

Depreciation simply stops as of the date the property ceases to be held for rental. The depreciation schedule is frozen at the accumulated amount claimed while it was a rental. This applies to all components: the building's 27.5- or 39-year straight-line depreciation, and any 5-, 7-, or 15-year components that were reclassified in a cost segregation study.

Recapture at eventual sale

The accumulated depreciation on all components is still subject to recapture when you eventually sell, even though the property is now personal use. The conversion does not reset the clock or erase the deductions you previously claimed.

Building (Section 1250): the straight-line depreciation claimed is unrecaptured Section 1250 gain, taxed at up to 25%.

Cost-segregated personal property components (Section 1245): the accelerated depreciation on 5-, 7-, and 15-year components is recaptured as ordinary income at your marginal rate.

On sale, the Section 121 home-sale exclusion may shelter some of the gain — but it does not cover depreciation recapture. Recapture is recognized in full even if the rest of the gain is excluded.

Planning around the conversion

Investors who convert a cost-segregated rental to personal use should keep a complete depreciation schedule showing exactly how much was claimed on each component. When they later sell the property, their tax preparer needs those records to correctly allocate gain between capital gain (potentially excludable under Section 121) and recapture (not excludable).

If you're debating whether to convert a rental that had a cost segregation study, understand that the upfront tax savings from the study will eventually be recaptured — the conversion doesn't help you avoid that, it just defers it further. In some cases, selling outright (and doing a 1031 exchange into another rental) before converting makes more economic sense than converting and holding.

The Section 121 exclusion and the non-qualified use trap

Many owners convert a rental to personal use intending to eventually claim the Section 121 home-sale exclusion ($250,000 single / $500,000 married). To qualify you must own and use the home as your principal residence for at least two of the five years before sale. But two rules limit the benefit for a former rental.

Depreciation is never excluded. Under Section 121(d)(6), gain equal to depreciation claimed after May 6, 1997 is recaptured as unrecaptured Section 1250 gain (up to 25%) even if the rest of the gain is fully excluded. Cost-segregated Section 1245 amounts are likewise recaptured as ordinary income.

Non-qualified use. Under Section 121(b)(5), the period the property was a rental before you converted it to a residence is 'non-qualified use.' The excludable gain is prorated: the portion of your ownership period that was non-qualified use is not eligible for exclusion. Rental years after the last day it was your residence generally are not counted, but the rental-first-then-residence pattern loses part of the exclusion.

A worked example

You buy a rental for $300,000 (excluding land), claim $90,000 of depreciation over several years — $70,000 straight-line building plus $20,000 of cost-segregated 5- and 7-year components — then convert it to your primary home and live there before selling for $500,000. Adjusted basis is $210,000, so total gain is $290,000.

First, recapture comes off the top regardless of Section 121: $70,000 of unrecaptured Section 1250 gain (taxed up to 25%) and $20,000 of Section 1245 recapture (ordinary rates). That $90,000 is taxable no matter how long you live there.

The remaining $200,000 of appreciation is then tested against Section 121 and the non-qualified-use proration. Only the share of your ownership period that counts as qualified (residence) use is eligible for the exclusion; the rental years before conversion reduce the excludable slice. The lesson: converting does not erase the depreciation, and living in the home does not make the recapture disappear.

Basis for a loss: the special conversion rule

If the property has declined in value and you later sell at a loss after converting to — then back from — rental or personal use, watch the basis rules. When personal-use property is converted to rental (business) use, the basis for computing a loss is the lower of adjusted basis or fair market value on the conversion date. This prevents you from deducting a decline in value that occurred while the property was personal.

Converting the other direction (rental to personal use) is simpler for basis purposes because personal-use losses are not deductible at all, but the depreciation-reduced basis carries over for measuring future gain and recapture when you eventually sell.

Records you must keep — for decades

Because recapture is deferred until an eventual sale that may be many years away, the burden falls on your recordkeeping. Keep, indefinitely: the original closing statement and land/building allocation; the full depreciation schedule showing each component, its recovery period, and accumulated depreciation at the conversion date; the cost segregation study report itself; and dated evidence of the conversion (when rental use ceased and personal use began).

Without the cost segregation study and component schedule, a future preparer cannot correctly split gain among ordinary Section 1245 recapture, unrecaptured Section 1250 gain, and capital gain — and may default to a less favorable or simply incorrect calculation. The study's value persists long after depreciation stops.

Alternatives to a plain conversion

Before converting a cost-segregated rental to personal use, weigh the alternatives. A 1031 exchange into another rental defers all the gain and recapture and keeps the asset in investment use — but you cannot 1031 into a personal residence. Some investors 1031 into a replacement rental, hold it as a rental for a safe period, and only then convert it to a residence (Section 121(d)(10) then requires a five-year ownership period before any exclusion applies to a home acquired in a 1031 exchange).

Others simply hold the rental until death, where a step-up in basis under Section 1014 eliminates both the appreciation gain and the depreciation recapture for heirs — the recapture is wiped out entirely at death, unlike at a lifetime sale. The right path depends on your cash needs, time horizon, and estate plan, so model the options with a tax advisor rather than converting by default.

Partial conversions and mixed use

Conversions are not always all-or-nothing. If you move into part of a property and keep renting the rest — for example, occupying one unit of a duplex or renting out a basement apartment — you have a mixed-use property. You must allocate basis, depreciation, and expenses between the rental and personal portions, typically by square footage. Depreciation stops only on the portion converted to personal use; the still-rented portion keeps depreciating, including its share of any cost-segregated components.

When you eventually sell a mixed-use property, the gain is split: the rental portion carries its own recapture and does not qualify for the Section 121 exclusion (except that, since 2002, a dwelling unit and its business use within the same structure are generally treated together for exclusion purposes, though depreciation is still recaptured). Keep the allocation methodology consistent from year to year and document it, because the split drives both the annual deductions and the eventual sale calculation.

Interaction with suspended passive losses

If your cost-segregated rental generated large passive losses that you could not fully deduct, some of those losses may be suspended and carried forward. Converting the property to personal use does not free them up — suspended passive losses are generally released only when you dispose of your entire interest in the activity in a fully taxable transaction. A conversion is not a disposition, so the suspended losses stay parked.

This is an important planning point: an investor sitting on significant suspended losses may get more value from selling the property (which frees the suspended losses to offset the gain and other income) than from converting it to personal use, where the losses remain trapped until an eventual taxable sale. Factor the suspended-loss balance into the convert-versus-sell decision.

Frequently asked questions

Does converting a rental to personal use trigger depreciation recapture?

No. Conversion is not a taxable event. Recapture is recognized when you eventually sell or dispose of the property.

Can the Section 121 exclusion cover depreciation recapture on a converted rental?

No. Section 121 excludes capital gain but not depreciation recapture. Unrecaptured Section 1250 gain and Section 1245 recapture are taxable even if the rest of the gain is excluded.

Are fully depreciated cost-segregation assets still subject to recapture?

Yes. Once a cost-segregated component (e.g., a 5-year appliance or 7-year fixture) reaches zero basis, it stops generating depreciation. But the depreciation already claimed is still subject to Section 1245 recapture when the property is sold.

If I move into a former rental, does the home-sale exclusion cover my whole gain?

No. Depreciation claimed after May 6, 1997 is always recaptured, and the years the property was a rental before you moved in count as non-qualified use that reduces the excludable portion under Section 121(b)(5). You keep only the prorated qualified-use share of the non-depreciation gain.

Does the recapture ever disappear?

Yes — at death. If you hold the property until you die, your heirs receive a step-up in basis to fair market value under Section 1014, which eliminates both the appreciation gain and the accumulated depreciation recapture. A lifetime sale or conversion does not achieve this.

What records do I need to keep after converting?

Keep the closing statement, land/building allocation, the full depreciation schedule with each component's recovery period and accumulated depreciation at the conversion date, the cost segregation study, and dated proof of when rental use ended — indefinitely, since recapture is calculated whenever you eventually sell.

Sources

Educational information and estimates only. Not tax advice. Tax rules change and vary by situation; consult a qualified tax professional before acting.

Cost Segregation Assets When You Convert a Rental to Personal Use