The 1031 exchange is one of the few remaining strategies that lets an LA real estate owner sell appreciated property and defer the capital gains hit — sometimes indefinitely. Used right, it’s the difference between handing the IRS a 20-30% slice of every transaction and recycling 100% of your equity into the next deal.
Used wrong, it’s an audit trail and a tax bill plus penalties. The 1031 has strict rules — 45 days to identify, 180 days to close, qualified intermediary required, like-kind property only — and a single missed deadline turns the whole exchange taxable.
This is the 2026 LA owner’s guide: when a 1031 makes sense for your portfolio, the rules, the deadlines, the cost, and the situations where it actually pencils.
What a 1031 exchange actually is
The 1031 exchange (named for Section 1031 of the Internal Revenue Code) lets you defer capital gains tax on the sale of investment real estate, provided you use the proceeds to acquire other investment real estate that meets specific rules.
The key word: defer, not eliminate. The gain you would have paid on Property A rolls into Property B’s cost basis. You still owe that tax — eventually. But “eventually” can mean decades; in the right hands, it can mean never (via a step-up in basis at death).
Why this matters in LA: California has high capital gains rates (federal + state can total 30-37% for higher-income earners on appreciated LA property). A $1M gain on a 25-year-hold building represents $250K-$370K in tax otherwise. A properly structured 1031 keeps that capital working for you.
The four core rules
1. Like-kind property
Both the property you sell (relinquished) and the property you buy (replacement) must be held for productive use in a trade or business OR for investment. “Like-kind” is broad: any U.S. real property held for investment qualifies for exchange with any other U.S. real property held for investment. You can swap a duplex for a strip mall, an apartment building for a warehouse, raw land for a rental house. You cannot swap U.S. property for foreign property, or personal-use property (your home, your vacation house) for anything.
2. The 45-day identification window
From the day you close on the sale of the relinquished property, you have 45 calendar days to identify the replacement property in writing. The identification must:
- Be in writing, signed, and delivered to your qualified intermediary (not just discussed).
- Specifically describe each property by address or other unambiguous reference.
- Follow one of three identification rules (most common: 3-property rule — you may identify up to 3 properties without regard to value).
Miss this deadline and the entire exchange becomes taxable. There is no extension.
3. The 180-day closing window
From the same closing date, you have 180 calendar days total to close on at least one of your identified replacement properties. This deadline is also absolute; no extension.
4. The qualified intermediary (QI) requirement
You cannot touch the sale proceeds. The QI holds the funds in escrow between your sale and your replacement purchase. If you receive the proceeds — even briefly — the exchange is broken.
Pick a QI with insurance, a track record, and good references. The QI industry has had spectacular failures (Sentry, LandAmerica) where customer funds were lost. Use a reputable, bonded QI with fidelity insurance covering the full transaction.
The math: trade-up vs. trade-down
To fully defer tax, the replacement property must be of equal or greater value than the relinquished property, AND you must reinvest all the equity (no cash out).
Worked example. You’re selling an LA fourplex for $1.6M with $400K of remaining mortgage. Your equity is $1.2M. Your cost basis (original purchase + capital improvements – depreciation) is $400K. The realized gain on sale is roughly $1.2M.
- Full defer (trade up): Buy a $1.6M+ replacement property and roll all $1.2M of equity into it (taking on at least $400K of new mortgage debt). Zero current tax.
- Partial defer (trade down): Buy a $1.2M replacement property and use $1.2M equity (paying it down). You’d recognize “boot” — the $400K difference is taxable now.
- Cash out: Take any cash from the QI for personal use — that cash is fully taxable.
When a 1031 makes sense for an LA owner
Strong candidate situations
- You’ve held a building 10+ years and depreciation recapture + capital gains would be material on sale.
- You want to consolidate or diversify. Trade three small LA buildings for one larger one, or trade one LA building for multiple smaller assets in other markets.
- You want to upgrade asset class. Trade a tired 1960s walk-up for a newer building with better systems and less deferred maintenance.
- You’re geographic-shifting. Sell LA, buy in Texas/Arizona/Nevada for stronger cash flow and lower regulatory friction.
- Estate planning. If you plan to hold replacement property until death, your heirs get a step-up in basis and the deferred gain effectively disappears.
Weak candidate situations
- You have a recent purchase with low gain. The 1031’s complexity isn’t worth deferring a small tax bill.
- You need cash from the sale. 1031 only works if you reinvest the equity; taking cash kills the deferral.
- You don’t have a replacement property identified. 45 days is shorter than most buyers expect. If you’re starting cold, the timing pressure leads to bad acquisitions.
- You’re getting out of real estate entirely. Just pay the tax and move on.
Cost of running a 1031
A standard 1031 costs $1,000-$3,000 in QI fees, plus normal sale and purchase transaction costs. On a $1.6M exchange that defers $300K-$400K of tax, the math is obvious. Where the cost goes up:
- Reverse exchanges (buy replacement before selling relinquished): $5K-$15K in QI/title fees, plus need to park the property in an Exchange Accommodation Titleholder.
- Multi-property exchanges: Each additional property adds setup work.
- Tight timing requiring rush diligence: lawyer/CPA fees scale up.
The traps
- The “boot” trap. Reducing debt on the replacement (without offsetting with new cash from outside) creates taxable boot. Match debt-for-debt or replace reduced debt with new equity contribution.
- The “received money” trap. If proceeds touch your hands (or your bank account) at any point, the exchange breaks. Coordinate every dollar through the QI.
- The “missed identification” trap. Day 45 is a hard wall. Build your identification letter early; have backup properties ready.
- The “missed close” trap. Day 180 is harder. Identify properties where you have actual buyer-strength to close — not just “interest.”
- The “related party” trap. Exchanges with relatives (and certain entity-owned properties) have additional 2-year holding rules; violate them and the exchange unwinds.
- The “primary residence” trap. Properties that have served as your primary residence (or were converted from rental to residence) have separate Section 121 rules; mixing 1031 and 121 requires care.
What to do BEFORE listing your property
If a 1031 might be part of your plan, decisions made before listing matter:
- Engage a CPA familiar with 1031s. Not all CPAs are. Confirm specific 1031 experience.
- Engage a qualified intermediary. Interview at least 2, check insurance, bonding, fund segregation practices.
- Identify replacement candidates. Start your replacement-property search before listing. The 45-day clock is brutal.
- Pre-position financing. If you’ll need debt on the replacement, have your lender lined up before sale close.
- Plan for the gap. Between sale close and replacement close, the QI holds your funds. Confirm interest treatment, timing.
When the alternative is better: just paying the tax
Not every appreciated LA building needs a 1031 at sale. Sometimes paying the tax is the right call:
- If you need the cash for non-real-estate uses.
- If the replacement market is overpriced relative to your sale market.
- If your tax bracket is unusually low this year (retirement-year sales, etc.) and the rate is favorable.
- If estate planning has shifted (e.g., revocable trust changes) and the step-up plan doesn’t apply.
A CPA should run the math both ways before you commit.
Frequently asked questions
Can I do a 1031 between LA and out-of-state property?
Yes — exchanges work across U.S. states. California’s “claw-back” rules require ongoing reporting on out-of-state replacement properties, but the federal exchange itself works fine.
Can I exchange a single-family rental for an apartment building?
Yes. Both are real property held for investment, so they’re like-kind. You can also exchange across asset classes (residential to commercial, etc.).
What about depreciation recapture?
The 25% depreciation recapture rate also defers under 1031. The recapture liability rolls into the new property’s basis.
Can I 1031 into a Delaware Statutory Trust (DST)?
Yes — DSTs are a recognized form of like-kind real property. They’re particularly useful when you want to be hands-off and don’t have time/inclination to manage a replacement property directly.
What if my 45-day identification falls on a weekend?
The clock doesn’t pause for weekends or holidays. Day 45 is day 45. Identify earlier; don’t crowd the deadline.
Considering a 1031 on an LA building?
We help owners think through whether a 1031 pencils for their situation — timing, replacement strategy, geographic shift, debt math, and QI selection. Free 30-minute owner consultation.
Book My Free Consultation →Disclaimer: This article is general information for California rental property owners and is not legal, tax, or investment advice. Section 1031 has detailed federal and state rules with significant case law and updates over time. Specific eligibility, deferral amounts, and procedures depend on your circumstances. Consult a qualified California real estate attorney, your CPA, and a licensed qualified intermediary before initiating any 1031 exchange.