Your Replacement Building in a 1031 Exchange Does Not Automatically Get Purchase-Price Basis

Separate market price from tax basis

An owner completes a qualifying exchange of business premises for a more expensive building and gives the accountant the replacement closing statement. Entering the entire purchase price as new depreciable basis can overstate deductions. IRS Publication 551 explains that a qualifying like-kind exchange generally carries forward the old property's adjusted basis, with adjustments for additional money, liabilities, recognized gain, and other relevant items. Deferred gain remains embedded in the replacement property rather than vanishing.

The exchange must qualify before these basis rules are applied. Identification deadlines and qualified-intermediary arrangements are only part of that review. This article addresses the opening basis after a qualifying exchange, not a way to repair a failed transaction. Gather both closing statements, the exchange agreement, old adjusted basis, financing details, and recognized-gain analysis. The owner should receive a basis bridge explaining why the replacement property's market price and tax investment differ.

Walk a simple all-cash-boot-paid example

Assume a hypothetical owner exchanges business real estate worth $900,000 with $400,000 of adjusted tax basis for qualifying replacement real estate worth $1.2 million. The owner contributes $300,000 of additional cash. Assume no debt, exchange expenses, cash received, or other complicating facts. Under the simplified carryover framework, replacement basis is $700,000: the $400,000 old adjusted basis plus $300,000 paid. The $500,000 unrecognized gain remains reflected in the difference between value and basis.

The owner does not depreciate the $1.2 million market value. Land allocation and asset classification still apply within the $700,000 basis. In a real exchange involving debt relief, new debt, multiple properties, expenses, or non-like-kind property, the bridge needs additional lines. Do not force such a transaction into this simple example. The purpose is to show the owner that exchanging can defer gain while also limiting the new depreciation basis compared with a fully taxable purchase.

Preserve carryover and excess depreciation histories

Publication 946 describes special depreciation rules for property acquired in a like-kind exchange or involuntary conversion. The carryover basis component can continue under the old asset's depreciation history, while an excess basis component generally receives its own treatment; elections and specific facts can affect the result. A single new asset entered with the replacement closing date may therefore be inadequate. Retain the old method, convention, remaining recovery period, and accumulated depreciation.

Ask for a workpaper separating carryover basis from excess basis and allocating each to relevant replacement assets. If several parcels or buildings are involved, value allocation becomes important. A land-heavy replacement can reduce the share of basis eligible for building depreciation even while total property value increases. The owner should see that consequence before relying on an expected annual deduction to fund a larger mortgage. Higher purchase price, greater depreciation, and lower current tax are not interchangeable outcomes.

Compare deferral with a taxable sale and purchase

An exchange can preserve cash that would otherwise fund current tax, but it may constrain timing and property choice. A taxable sale followed by a purchase can create a different replacement basis while requiring cash for tax now. Compare both over the expected holding period, including financing, future disposition, operating costs, and investment return. Do not treat the deferred tax as permanently eliminated or assume a larger basis alone makes the taxable route better.

Use the same replacement property and realistic financing in both cases so the comparison isolates the tax structure. If the exchange forces acquisition of less suitable premises, show the operational cost explicitly. If the owner receives some cash or other property, determine recognized gain and its effect on basis using the actual transaction. A sound decision weighs usable liquidity against future deductions and embedded gain, rather than selecting whichever spreadsheet has the lowest sale-year liability.

Close the exchange with a permanent bridge

Retain the old asset schedule, both settlement statements, intermediary records, financing statements, Form 8824 workpapers, allocation evidence, and replacement depreciation schedule. Reconcile total replacement basis and its carryover and excess components to the filed return. Give the owner a readable explanation of remaining deferred gain. Preserve the file through later improvements, exchanges, or sale; the original property's history can remain relevant for many years after the business moves into the replacement premises.