1031 Exchange Basics: Deferring Capital Gains on Investment Property

What Is a 1031 Exchange?

A 1031 exchange, named after Section 1031 of the Internal Revenue Code, allows real estate investors to defer paying capital gains tax when they sell an investment property, provided they reinvest the proceeds into a "like-kind" replacement property. The term "like-kind" is broad in real estate. Any real property held for investment or business use can be exchanged for any other real property held for the same purpose. A single-family rental can be exchanged for a commercial office building, a vacant lot, or an apartment complex.

The tax deferral applies to both the capital gains tax (up to 20% federal rate plus the 3.8% net investment income tax) and the depreciation recapture tax (25% flat rate). On a property with $200,000 in gain and $80,000 in accumulated depreciation, the combined federal tax bill could exceed $60,000. A properly executed 1031 exchange defers that entire amount.

Core Requirements

To qualify for tax deferral under Section 1031, several requirements must be met. The relinquished property (the one you sell) and the replacement property (the one you buy) must both be held for investment or productive use in a trade or business. Personal residences and properties held primarily for resale (such as fix-and-flip inventory) do not qualify.

The exchange must be facilitated by a Qualified Intermediary (QI), sometimes called an accommodator. The QI holds the sale proceeds in escrow and transfers them directly to the seller of the replacement property. You cannot touch or control the funds at any point during the exchange. If the proceeds hit your bank account, even briefly, the exchange is disqualified.

Two strict deadlines govern every exchange. You have 45 calendar days from the sale of the relinquished property to identify potential replacement properties in writing. You then have 180 calendar days from the sale (or your tax return due date, whichever is earlier) to close on the replacement property. These deadlines are absolute, with no extensions granted for weekends, holidays, or any other reason.

Identification Rules

During the 45-day identification period, you must follow one of three IRS rules for naming replacement properties. The Three-Property Rule allows you to identify up to three properties of any value. The 200% Rule allows you to identify any number of properties as long as their combined fair market value does not exceed 200% of the relinquished property's sale price. The 95% Rule allows unlimited identifications, but you must acquire at least 95% of the total identified value.

Most investors use the Three-Property Rule because of its simplicity. Identifications must be in writing, signed by you, and delivered to the QI or another party involved in the exchange (not your agent or attorney).

Common Pitfalls

The most frequent mistake is failing to line up a replacement property before the 45-day deadline. In competitive markets, this can be a real challenge. Starting your property search well before selling the relinquished property reduces this risk significantly.

Another common error is "boot." If you receive cash or non-like-kind property as part of the exchange, that portion (called boot) is taxable. Boot also occurs when your mortgage on the replacement property is smaller than the mortgage on the relinquished property. To achieve full deferral, you must reinvest all net proceeds and acquire equal or greater debt (or add cash to make up the difference).

Investors sometimes forget that 1031 exchanges are a deferral, not an elimination. When you eventually sell the replacement property without doing another exchange, the deferred gain becomes due. However, many investors chain exchanges over a lifetime and use a step-up in basis at death (under current law) to permanently eliminate the deferred gain for their heirs.

For a broader overview of tax planning for rental property investors, see Tax Planning Strategies for Rental Property Income.