Inherited Rental Basis Error: Amend or Form 3115?

Inherited property's basis is generally tied to date-of-death value, subject to applicable estate and alternate-valuation rules; a new depreciation schedule may begin when held for rent.

If your filed return carried over the decedent's old depreciation schedule, first prove the heir's actual inherited basis and rental-service date. Do not file Form 3115 merely to replace an unsupported valuation. A basis or posting mistake and a change in an adopted depreciation method are different problems; one file may contain both. Reconstruct the starting basis, compare each filed year, and then choose the correction procedure.

Book a Return Review Call for an Inherited Rental Basis Error

The tax treatment

Inherited property's basis is generally tied to date-of-death value, subject to applicable estate and alternate-valuation rules; a new depreciation schedule may begin when held for rent. This is a federal income tax starting point; the contract, ownership, accounting method, and actual use can change the result. State and local treatment should be checked separately.

The decision to make before filing

Separate inherited land and building values and account for any estate-level valuation choice. The useful planning step is to resolve the classification while the underlying documents are still available, then reconcile it to the books and the prior-year return. If the transaction spans more than one year, track the opening balance and what happened to it afterward.

Illustrative example

An heir receives a rented house with a prior depreciation history. The heir should obtain estate valuation records and allocate the inherited basis between building and land. Carrying forward the decedent's old building basis without review can misstate both future depreciation and gain on sale.

Records that support the position

Keep estate inventory, appraisal, probate records, and rental placed-in-service evidence. Tie amounts on the return to bank activity and the agreement. When several assets, people, or uses are involved, write down the allocation method and apply it consistently. A short dated workpaper is easier to defend than a reconstructed explanation years later.

A common reporting error

Continuing the decedent's depreciation schedule without examining the new basis can miss or overstate deductions. Review both sides of the entry: a payment can affect income, basis, liability, or an expense at different times. A correct cash total alone does not establish the correct tax character.

Where to verify the rule

Start with IRS Publication 946: How To Depreciate Property. Its examples and cross-references explain the underlying federal rule; check the current version and any later IRS guidance for the year at issue. For a coordinated review of related deductions and limitations, see Real estate tax planning.

The specific correction question: amend or Form 3115?

Ask what was wrong before asking which form is cheaper. IRS Publication 551 generally starts inherited-property basis with date-of-death fair market value, unless an applicable alternate valuation or special rule changes it; certain heirs must be consistent with the estate-tax value reported on Schedule A (Form 8971). Inherited land is not depreciable. The heir's own basis, ownership percentage, and rental-service history should be documented separately from the decedent's returns.

What the review finds	Correction route to examine
Estate valuation, ownership share, or land/building amount was entered incorrectly	Rebuild basis from source documents; analyze amended returns and all affected sale-year or carryforward schedules. Do not assume a method-change form can establish a new valuation.
Correct basis, but depreciation was omitted or an impermissible recovery method was used over multiple returns	Determine whether an accounting method was adopted and whether Form 3115 with a Section 481(a) adjustment is permitted for that asset and year.
Both inherited basis and the depreciation method are wrong	Resolve the basis first, then model year-by-year depreciation and evaluate whether amendments, a method change, or coordinated steps are needed. Never put an unsupported basis difference into a catch-up adjustment.

IRS Publication 946 permits an amended-return correction in specified situations, including math and posting errors and certain pre-adoption depreciation errors. It explains that repeated use of an impermissible depreciation method can establish a method requiring consent to change. Form 3115 instructions exclude amounts unrelated to the method change from the Section 481(a) computation. Closed-year refund limits, elections, disposition-year rules, and the particular taxpayer's filing history still need a professional review. For the broader distinction, see AE's amended return versus Form 3115 guide.

Worked example: the inherited building was never reset

An heir receives 100% of a house that remains available for rent. The decedent's last depreciation schedule lists $120,000 of remaining building basis, but a supported estate valuation establishes $600,000 total date-of-death value: $150,000 land and $450,000 building. The heir's preparer copies the $120,000 figure onto the heir's first Schedule E. On these simplified facts, the heir must investigate a $450,000 inherited building starting basis—not continue the decedent's $120,000 schedule. The $330,000 difference is not itself a one-year deduction. Determine the heir's placed-in-service date and convention, calculate allowable depreciation for each filed year, then examine which corrections are legally available. If a separate recovery-period or method error also occurred, analyze it separately rather than using Form 3115 as a substitute for the appraisal.

The example assumes the entire property qualified for a new inherited basis and ignores later improvements, co-ownership, estate expenses, and alternate valuation. A surviving spouse's partial interest, trust ownership, special-use valuation, or personal use before rental can change the schedule. Inherited Section 1014 basis is not automatically eligible for bonus depreciation: the IRS bonus-depreciation FAQ excludes used property whose basis is determined under Section 1014(a). The inherited-property cost-segregation guide separates inherited components from later acquired improvements.

Records to gather before changing a filed return

Estate inventory, date-of-death appraisal, any Form 706 valuation election, and any Schedule A (Form 8971) furnished to the heir.
Deed and ownership records, including co-owner percentages and the dates the estate or heir held title.
Decedent's final depreciation schedule, estate or trust Form 1041 schedules if applicable, and the heir's original asset ledger and every filed Schedule E at issue.
Evidence the property was ready and available for rent, land/building allocation support, and invoices for post-inheritance improvements.
Any sale, casualty, refinancing, or cost-segregation records that changed basis or could make the timing of the correction urgent.

Failure points to catch before filing

Do not treat the decedent's purchase price as the heir's date-of-death value, depreciate land, presume every heir received 100% of the property, or apply the original owner's placed-in-service date without reviewing the heir's use. Do not claim all missed depreciation as a current-year deduction just because the old schedule was low. On a future sale, adjusted basis is affected by depreciation allowed or allowable, so a filing error can follow the property even when an old-year refund is no longer available. See Publication 551's basis adjustments.

If you have already filed using the wrong basis, AE can reconcile the estate evidence, the inherited and subsequent asset schedules, the amount on each return, and the amendment-versus-method-change route. Book a Return Review Call before filing another year or selling the property; bring the appraisal and both taxpayers' depreciation schedules.

Inherited Rental Property Basis Is Wrong: Amend or File Form 3115?