Depreciation After Converting a Home to Rental Use

What this property or sale question changes

A home stops being a Section 121 residence and starts being a depreciable asset on the day it actually goes into service as a rental — not the day escrow eventually closes years later. That conversion date sets a second basis figure that runs alongside the original purchase price, so by the time a sale or exchange happens, an owner is working with two histories: what the home cost, and what depreciation did to that cost while it operated as a rental.

Errors made at conversion compound every year afterward. A basis set wrong in year one produces a depreciation schedule that is wrong every year after, and that error surfaces all at once at sale — as unrecaptured gain, an inflated adjusted basis, or a 1031 calculation built on the wrong starting number.

The Basis You Start Depreciating From

At conversion, the IRS requires comparing two numbers: the owner's adjusted basis and the property's fair market value on the conversion date. The lower figure generally becomes the starting point for depreciation. Adjusted basis usually begins with acquisition cost, then reflects qualifying improvements and other basis adjustments supported by the owner's records.

The lower-of-basis-or-value rule prevents an owner from depreciating a personal-use decline that occurred before the property entered rental service. A house with a $600,000 adjusted basis and a $500,000 fair market value when first rented generally starts the depreciation calculation from $500,000. Land is allocated out because land itself is not depreciable.

That comparison also creates an important distinction at disposition. The basis used to calculate depreciation after conversion may not be the same basis used to calculate gain or loss when the property is sold. Publication 527 illustrates that gain and loss can require different basis paths after a personal residence converts to rental use. Keep both calculations rather than letting the depreciation schedule silently replace the property's historical basis.

Splitting the Price Between Land and Structure

Only the depreciable improvements enter the building schedule; the ground under them does not. Before depreciation can begin, the conversion-date figure has to be allocated between land and improvements using a supportable method.

An appraisal that separately values land and improvements can provide direct support. Assessor allocations are often used as a reference, but an assessed ratio is not automatically the same as fair market value and should not be described as conclusive. Whatever method is selected should be dated to the conversion period and preserved with the return workpapers.

Later capital improvements start from their own cost and placed-in-service date. Repairs that merely keep the property in ordinary operating condition are treated differently from improvements that better, restore, or adapt the property. That classification affects current deductions, depreciation, adjusted basis, and the gain calculation years later, so invoices should describe the actual work instead of relying on a one-word bookkeeping label.

How the Depreciation Schedule Actually Runs

Residential rental property depreciates under MACRS over a 27.5-year recovery period using straight-line only — there is no accelerated option after a home converts to rental. The mid-month convention treats the property as placed in service mid-month, so the first year's deduction is prorated by month rather than calculated as a full year.

A rental placed in service in March gets roughly 9.5 months of depreciation in year one, per the tables in IRS Publication 946. Every later year gets a full 27.5th of the depreciable basis until the schedule ends or the property sells. Improvements made after conversion — a new roof, an addition — start their own 27.5-year schedule from their own in-service date; they do not merge into the original one.

Year one is reported on Form 4562 and flows to Schedule E. After that, the deduction is usually stable enough that owners stop checking it — which is when a wrong basis or an unreviewed allocation tends to sit undetected until a sale forces the recalculation.

Unrecaptured Section 1250 Gain: Sale Versus Exchange

Depreciation does not disappear when the former home is sold. Gain attributable to depreciation may be treated as unrecaptured Section 1250 gain and subject to a maximum 25 percent federal rate in a taxable disposition, although the return calculation can also involve other gain categories, losses, limitations, and state tax.

A qualifying Section 1031 exchange can defer recognition that would otherwise arise at the relinquished-property sale, but it does not erase the depreciation history. The replacement basis generally reflects the deferred transaction, and later recognition still depends on the carried tax attributes and subsequent events. Cash, non-like-kind property, debt relief, or an incomplete exchange can cause current recognition, so the result should be calculated from Form 8824 rather than summarized as an automatic recapture deferral.

Section 121 adds another boundary. Publication 523 states that gain attributable to depreciation deductions for rental or business use after May 6, 1997 cannot be excluded under the home-sale exclusion. The owner therefore needs one calculation that reconciles total gain, the Section 121 exclusion, depreciation-related gain, any nonqualified-use allocation, and any Section 1031 treatment.

The Paper Trail That Has to Survive to Closing

By closing, the file needs to answer basis questions without anyone reconstructing memory: the original purchase closing statement, the appraisal or valuation used to set fair market value at conversion, receipts for every improvement, and every year's Form 4562 and Schedule E showing depreciation actually claimed.

Allowed or allowable depreciation reduces basis whether or not it was claimed. An owner who skipped the deduction still has to subtract it at sale, which makes the historical Form 4562s, or their absence, directly relevant to the gain calculation. A missing return or a skipped year needs to be reconstructed before closing, not discovered afterward.

A dated occupancy record — when personal use ended, when the property was first listed for rent, when a lease was signed — supports the conversion date itself. Casualty losses, insurance claims, and vacancy between personal and rental use should be documented too, since those gaps are exactly what an examiner or a buyer's attorney asks about first.