How California's 1031 Clawback Rule Actually Works

What the clawback actually is (in plain English)

The federal 1031 rule lets you defer capital gains by exchanging investment real estate for like-kind investment real estate. California honors that deferral year-to-year — but it does not let the deferred gain leave the state's tax jurisdiction permanently.

If you sold a California property at a $500,000 gain in 2024 and exchanged the proceeds into a Florida replacement, California views that $500,000 as still owed to the state — just deferred. As long as you keep the deferral going (year after year, exchange after exchange), California waits. The moment you sell the Florida replacement without another 1031, California's Franchise Tax Board (FTB) sends you a tax bill on the original $500,000 California gain at California's tax rates — currently up to 13.3% — even if you've been a Florida resident for ten years by then.

That is the clawback. No other state has this rule.

How Form FTB-3840 enforces it

The mechanism is annual reporting. The year you complete a California-to-out-of-state 1031, you must file Form FTB-3840 (California Like-Kind Exchanges) with the FTB along with your California return. You then file Form FTB-3840 every subsequent year until one of three things happens:

1. You sell the out-of-state replacement without doing another 1031 — at which point California assesses tax on the deferred gain.
2. You exchange the out-of-state replacement into another property — the deferral continues, and you keep filing FTB-3840 annually on the new property.
3. You die holding the property — your heirs get a stepped-up basis under federal rules, which extinguishes the deferred California gain along with the federal gain.

If you stop filing Form FTB-3840 and California discovers the lapse, penalties and interest accrue. The FTB does cross-reference federal data and audits these.

When the clawback fires (and when it doesn't)

The clawback only applies in one specific scenario: California real property exchanged into non-California real property, then later sold without another 1031.

It does not apply when:

• You exchange California property into another California property (no clawback risk — the gain stays in California's jurisdiction either way).
• You exchange out-of-state property into California property (this is in California's interest — they want gain to come into the state).
• You sell the out-of-state replacement in another 1031 exchange — deferral continues, clawback waits.
• You die holding the property — basis steps up federally, and the clawback is extinguished.

The three strategies that defeat the clawback

Most California investors I work with use one of these:

1. Chain consecutive 1031 exchanges (defer indefinitely)

The clawback only fires on a final sale. As long as you keep exchanging, you keep deferring — both federally and on the California obligation. Sophisticated investors run 3-4 consecutive exchanges over a 20-year period without ever paying federal or California tax on the appreciated gain.

2. Hold until death (basis step-up wipes the clawback)

If you hold the out-of-state replacement until death, your heirs receive a stepped-up basis equal to the property's fair market value at death. Federal capital gain is extinguished; California's deferred gain is extinguished along with it because there's no longer a tax-recognition event. This is the cleanest exit from the clawback for investors planning multi-generational real estate transfer.

3. Use a Delaware Statutory Trust (DST) for ongoing passive deferral

When you're tired of active landlord work but don't want to trigger the clawback, exchanging into a DST interest qualifies as a like-kind exchange and continues the deferral indefinitely. DSTs typically hold institutional-grade assets and pay quarterly distributions. When the DST eventually disposes of the underlying property, you can usually 1031 again into a new DST and keep the chain going.

Common clawback mistakes

• Forgetting to file Form FTB-3840 in subsequent years. The first year is usually filed correctly; year 5 or year 7 is when filings get missed and the FTB later assesses penalties.
• Assuming residency change escapes the clawback. Moving from California to Texas or Florida does not extinguish the deferred gain — California taxes it on the eventual recognition event regardless of where you live.
• Triggering boot in the original exchange. Any boot received in the California exchange is taxable to California immediately at full California rates. Plan around it.
• Selling the replacement to a related party then re-acquiring. California's FTB looks at substance over form. Avoid clever workarounds — they invite audit.

When to plan around the clawback

If your California property has a six-figure unrealized gain and you're considering moving capital out of state, the clawback should be modeled before you decide. The deferral still pays — California's 13.3% top rate makes deferring even temporarily worth tens of thousands per $100k of gain. But the right structure depends on your time horizon, estate plan, and target geography.

For a deeper look at California 1031 dynamics — investor profiles, property types, and reinvestment trends specific to California — see my California 1031 exchange overview.