1031 Exchanges in California: the Clocks, the Clawback, and the Loan
Program and regulatory figures verified July 24, 2026. Details change; confirm your scenario with us.
A 1031 exchange defers capital-gains tax when you trade one investment property for another, if you hit two unforgiving deadlines. California adds one wrinkle when you exchange out of state, and the loan has to respect the clocks.
How a 1031 exchange works
Sell a rental, buy a rental, defer the gain. The mechanics are strict: proceeds go to a qualified intermediary (never to you), you identify replacement property in writing within 45 days of the sale closing, and you complete the replacement purchase within 180 days. Both clocks start the same day and run concurrently; the 180 is not 45-plus-180. Since the 2018 tax law, like-kind treatment applies to real property only (the IRS's own guidance is short and readable), and the exchange reports on Form 8824. "Like-kind" is broad within real estate: a San Diego condo into Fresno land into a Riverside fourplex all qualifies as U.S. real property for U.S. real property.
Your qualified intermediary and CPA run the exchange itself; we don't practice tax. What we run is the loan that has to close inside those 180 days.
The California wrinkle: FTB Form 3840
California has a claw-back rule most out-of-state exchange calculators miss. When you defer California-sourced gain by exchanging into a replacement property located outside California, the state generally requires you to file an annual informational return, FTB Form 3840, each year until the deferred gain is finally recognized (typically when you sell the replacement outside a further exchange). The purpose is to let California collect its tax on that original gain whenever the deferral ends. This is a filing obligation, not an extra tax at the time of the exchange, but missing it can create problems, so it belongs in your plan the moment an out-of-state replacement is on the table. Confirm the current Form 3840 requirement and threshold with your CPA; this is general information, not tax advice.
Financing the replacement property on a deadline
The 1031 timeline is where DSCR structure earns its keep. No employment verification, no tax-return analysis, no personal DTI reconstruction: the replacement property qualifies on its own rent against its own payment, which strips weeks of documentation risk out of a purchase that cannot miss its date. Identification-period discipline matters too: we pre-underwrite your candidate properties during the 45-day window so the one you pick is already a known quantity. LLC vesting carries through cleanly (entity mechanics, including the $800 tax), and if the replacement is a short-term rental, STR income rules and the city's permit reality apply as usual.
Exchanging into California
Investors exchanging into California trade the state's high prices and $800 entity tax for Prop 13's basis reset and the inland cash-flow markets. One California-specific note on the replacement side: the purchase resets the property's assessed value to your price, so model the new tax bill on the price you'll pay, not the seller's old assessment, and remember the supplemental bill will follow. The inland and valley markets are where exchange proceeds stretch across more doors: the inland guide. Model the replacement's real tax with the tax guide before you identify.
No pressure, no obligation, and no salesy follow-up: a 20-minute call with our team, real numbers, and a straight answer on whether the deal pencils.
Frequently asked questions
How does a 1031 exchange work when buying a California rental?
Proceeds from your sale go to a qualified intermediary; you identify replacement property in writing within 45 days of closing and complete the purchase within 180 days (both clocks run concurrently). Real property only, reported on Form 8824. Your QI and CPA run the exchange; we close the replacement loan inside the window.
What is California's FTB Form 3840 and does it apply to me?
If you defer California-sourced gain by exchanging into a replacement property outside California, the state generally requires an annual FTB Form 3840 informational return each year until the deferred gain is recognized. It is a filing obligation, not an extra tax at exchange time, but missing it can cause problems. Confirm the current requirement with your CPA before you exchange out of state.
Can I use a DSCR loan on a 1031 replacement property in California?
Yes, and it fits the timeline well: the replacement qualifies on its own rent-to-payment ratio without employment or tax-return documentation, so the loan can't be derailed by personal-income underwriting inside your 180 days. LLC vesting is preserved, and we pre-underwrite candidates during your 45-day identification window.
Mike Certo · NMLS #260555 · Cornerstone First Mortgage NMLS #173855 · Equal Housing Lender. Educational content, not a loan commitment and not legal or tax advice. California rent-cap percentages, city and county STR rules, tax figures, and litigation status change; verify current requirements with the city or county, your CPA, or a California real estate attorney before you buy. Loans are subject to buyer and property qualification.