What Is a 1031 Exchange, and How Can Investors Use It in Los Angeles County?

A 1031 exchange lets a real estate investor sell an investment property and reinvest the proceeds into a new "like-kind" property while deferring the capital gains tax that would otherwise be due — but it comes with two strict deadlines (45 days to identify a replacement property, 180 days to close on it) and a required third-party qualified intermediary who holds the sale proceeds so you never touch the money directly. Used correctly, it's one of the most powerful wealth-building tools available to Los Angeles County investors; used carelessly, a missed deadline or a disqualifying detail can collapse the whole exchange and trigger the very tax bill you were trying to defer.

What Exactly Is a 1031 Exchange?

Named for Section 1031 of the Internal Revenue Code, a 1031 exchange allows an investor to defer paying capital gains tax on the sale of an investment or business property by rolling the proceeds into a new property of equal or greater value. The tax isn't eliminated — it's deferred, carried forward into the replacement property's cost basis — but many investors use exchange after exchange over a lifetime of investing, and depending on estate planning, heirs may eventually receive the property with a stepped-up basis that can erase the deferred gain entirely.

What Are the 45-Day and 180-Day Deadlines, and Why Are They So Strict?

From the day you close on the sale of your relinquished property, you have exactly 45 days to formally identify potential replacement properties in writing to your qualified intermediary, and 180 days total (not 45 plus 180) to close on the purchase of the replacement. Both deadlines are calendar days, not business days, and the IRS grants no extensions for missed deadlines except in specific federally declared disaster situations. Because of how tight this window is, experienced LA County investors typically start lining up replacement property candidates before their current property even closes escrow.

What Counts as "Like-Kind" Property for a 1031 Exchange?

For real estate, "like-kind" is interpreted broadly: any real property held for investment or business use generally qualifies as like-kind to any other, so a Los Angeles County apartment building can exchange for a commercial building, vacant land, or a single-family rental anywhere else in the United States. What doesn't qualify: your primary residence, a second home used primarily for personal purposes, and property held primarily for resale, such as a fix-and-flip. The replacement property must also be of equal or greater value and carry equal or greater debt to defer 100% of the gain; taking cash out or reducing your debt load ("boot") can trigger partial taxation.

Why Do You Need a Qualified Intermediary?

A qualified intermediary (QI) is a neutral third party who holds the sale proceeds in escrow between the two transactions so that you, the investor, never have actual or constructive receipt of the funds — if you touch the money even briefly, the IRS treats the transaction as a taxable sale, not an exchange. The QI must be engaged before your relinquished property closes, and cannot be your agent, attorney, accountant, or anyone who has acted in one of those capacities for you within the prior two years.

How Does Measure ULA Affect a 1031 Exchange on a High-Value LA County Property?

The City of Los Angeles's Measure ULA transfer tax applies separately from your federal 1031 exchange and doesn't affect its tax-deferral qualification, but it does affect your bottom line on both ends of the transaction. For sales closing after June 30, 2026, a 4% tax applies to the portion of a property's value between $5,400,000 and $10,900,000, and a 5.5% tax applies above $10,900,000 — on both the property you sell and any City of LA replacement property you buy above those thresholds. Factoring in Measure ULA on both legs of a high-value exchange is essential to knowing your true net proceeds.

Frequently Asked Questions About 1031 Exchanges

Can I 1031 exchange a Los Angeles County rental for a property in another state?
Yes. Location within the United States is not a like-kind requirement — you can exchange an LA County property for one anywhere else in the country, which is a common strategy for investors moving into markets with stronger cash flow or lower price points.

What happens if I don't identify a replacement property within 45 days?
The exchange fails, your qualified intermediary returns the proceeds to you, and the original sale becomes a fully taxable transaction — there's no partial credit or extension for missing the deadline outside of a federally declared disaster.

Does a 1031 exchange work for my primary residence?
No. 1031 exchanges are limited to property held for investment or business use; a primary residence has its own separate capital gains exclusion rules instead.

Is Measure ULA a factor in my exchange's federal tax deferral?
No — Measure ULA is a local transfer tax collected at closing regardless of whether you're doing a 1031 exchange, and it doesn't affect whether your federal capital gains tax is deferred.

Updated for September 2026.

This is general information, not tax or legal advice — 1031 exchange rules are complex and unforgiving of mistakes, so work with a qualified intermediary, a CPA, and a real estate attorney experienced in exchanges before you sell. Andrea Pazmino-Pace, DRE #02013784.