A 1031 exchange lets an investor sell a rental property and reinvest the proceeds into another investment property while deferring the capital gains tax otherwise due at closing. The tax is deferred, not eliminated, and qualifying depends on specific timing, property type, and transaction rules. For an owner in Bakersfield or elsewhere in Kern County selling a rental to buy a different property, California layers a few state-specific requirements on top of the federal rules, and missing either set can turn a tax-deferred sale into a fully taxable one.
Which Properties Are Eligible for a 1031 Exchange
Under 26 U.S.C. Section 1031, both the relinquished and replacement properties must be real property held for investment or for use in a trade or business. Personal property has not qualified for a federal 1031 exchange since the 2017 Tax Cuts and Jobs Act. California took longer to align: for exchanges initiated after January 10, 2019 and completed before January 1, 2025, the state still allowed personal property exchanges for filers under set adjusted gross income limits, an exception described in FTB guidance on reporting like-kind exchanges. That exception sunset for exchanges completed on or after January 1, 2025, when California moved to full conformity with the federal real-property-only rule. Properties do not need to match in type or use; a single-family rental can be exchanged for a duplex, a commercial building, or vacant land, as long as both sides are held for investment or business purposes.
Two Deadlines That Cannot Be Missed
Two federal deadlines control every 1031 exchange, and California does not extend or modify either one. Both run from the day the relinquished property closes.
| Deadline | Requirement | Statute |
| 45 days | Replacement property must be formally identified in writing | 26 U.S.C. 1031(a)(3)(A) |
| 180 days | The exchange must close, or the deadline for the seller’s tax return for that year, whichever comes first | 26 U.S.C. 1031(a)(3)(B) |
Missing the 45-day identification window disqualifies the entire exchange, even if a purchase later closes within 180 days. As explained below, missing these same deadlines is also what triggers California’s separate withholding requirement.
Why the Seller Cannot Hold the Sale Proceeds
An owner cannot hold the sale proceeds personally at any point during the exchange, even briefly; doing so is treated as constructive receipt of the funds and disqualifies the exchange. Instead, a qualified intermediary holds the proceeds and uses them to acquire the replacement property on the owner’s behalf, a role detailed in the IRS instructions for Form 8824, the form used to report a like-kind exchange.
When Part of the Exchange Remains Taxable
If an exchange includes cash, debt relief, or other non-like-kind property, that extra value is called boot and is taxable in the year of the exchange. Boot commonly shows up two ways:
- Leftover cash, because the replacement property cost less than the relinquished one sold for
- A drop in mortgage debt that is not replaced by new debt of equal value on the replacement property
To defer the gain in full, the replacement property generally needs equal or greater value and debt than the property sold.
California’s Rules When an Exchange Does Not Go Through
California generally follows the federal 1031 framework, but state law adds a financial backstop if an exchange does not actually qualify. Under Revenue and Taxation Code Section 18662, a seller who certifies a sale is part of a 1031 exchange avoids withholding at closing on that basis. If the exchange then fails because it misses the 45-day identification or 180-day completion deadlines in IRC Section 1031(a)(3):
- The intermediary or accommodator holding the funds must notify the Franchise Tax Board in writing within 10 days of the deadline’s expiration
- The intermediary must then remit the withholding that would otherwise have applied, either a flat 3 1/3 percent of the sales price or a certified amount based on the actual gain
This provision, often called California’s exchange clawback, is a collection mechanism, not a new tax; it ensures the state receives withholding on the gain once an exchange has failed, rather than relying on the seller to self-report it.
Additional Filing for an Out-of-State Replacement Property
A separate requirement applies whenever an owner exchanges California real property for a replacement property in another state. According to current FTB filing guidance, the owner must file Form FTB 3840 for the year of the exchange and every subsequent year until one of the following occurs:
- The California-sourced deferred gain is recognized on a California return
- The replacement property passes to someone else through inheritance
- The replacement property is donated to a qualifying nonprofit
Skipping this annual filing does not remove the obligation; the FTB can later issue a Notice of Proposed Assessment adding back the deferred gain plus penalties and interest. The filing is not required when the replacement property stays inside California.
Exchanges Between Related Parties
Exchanging property with a related party, such as a family member or a business the owner controls, is allowed, but Section 1031(f) adds a condition that applies the same way in California as anywhere else: if either party disposes of the property received within two years of the last transfer, the exchange loses its tax-deferred treatment retroactively and both sides must report the gain as if it never qualified. Limited exceptions apply for death and involuntary conversions.
Converting the Replacement Property Into a Primary Residence
Some owners eventually want to move into a property they originally acquired through a 1031 exchange. This is possible, but Section 121(d)(10) requires the property to be held at least five years from the date it was acquired in the exchange before the owner can apply the home sale exclusion when it is sold. The property must also still meet the standard two-of-five-year residency test. In California, any gain not covered by the exclusion is taxed as ordinary income under the state’s regular brackets, since California has no separate, lower rate for capital gains.
When a Vacation Home Can Serve as Replacement Property
A vacation home can qualify, but only if it is genuinely operated as a rental rather than kept mainly for personal use. IRS Revenue Procedure 2008-16, described by the Journal of Accountancy’s Tax Adviser, sets out a safe harbor for each of the two 12-month periods immediately before and after the exchange:
- The property must be rented at fair market rate for at least 14 days
- The owner’s personal use must stay at or below the greater of 14 days or 10 percent of the days the property was actually rented
A property missing these thresholds may still qualify but carries more risk of an IRS challenge on whether it was truly held for investment.
When the Property Is Lost to Disaster Rather Than Sold
A 1031 exchange assumes the owner is voluntarily selling. When a rental is instead destroyed, such as by a wildfire in the foothill and mountain areas around Kern County, a different provision, Section 1033, governs the tax treatment of the insurance or condemnation proceeds, and it is often confused with Section 1031 because both defer gain on a replacement purchase. The two rules are not the same, and the difference matters for a rental owner:
- The standard replacement window under Section 1033 is 2 years from the close of the tax year in which the gain is realized, not the 45- and 180-day deadlines that apply to a 1031 exchange
- For a federally declared disaster, Section 1033(h)(1) extends that window to 4 years, but only for a taxpayer’s principal residence, not for rental or other investment property
- For rental or investment property damaged in a federally declared disaster, Section 1033(h)(2) instead relaxes what counts as qualifying replacement property, treating any tangible property held for productive use in a trade or business as similar enough to the property that was lost
In practice, this means a landlord who loses a rental to a declared wildfire disaster still works within the standard 2-year window, but has more flexibility in what replacement property qualifies than a 1031 exchange would normally allow.
Does the 1031 Exchange Still Apply in 2026
Yes. The One Big Beautiful Bill Act, signed in July 2025, made significant changes to federal tax law but did not repeal or cap Section 1031. A proposed $500,000 annual limit on 1031 gains discussed earlier in the legislative process did not make the final law, and the 2025 IRS Form 8824 instructions confirm the exchange rules above remain unchanged for the current tax year.
What has changed for 2026 is the tax rate an owner faces if a sale is not exchanged and the gain is instead recognized. Based on 2026 federal capital gains brackets, sourced to IRS Revenue Procedure 2025-32:
| Rate | Single | Married Filing Jointly | Head of Household |
| 0% | Up to $49,450 | Up to $98,900 | Up to $66,200 |
| 15% | Up to $545,500 | Up to $613,700 | Up to $579,600 |
| 20% | Above $545,500 | Above $613,700 | Above $579,600 |
These federal brackets apply to the gain itself and exclude California’s own tax. California has no preferential rate for capital gains: an unexchanged gain is added to other income and taxed under the state’s regular schedule, topping out at 13.3 percent for taxable income above $1,000,000. A 1031 exchange defers both the federal and the state tax on the gain, not just the federal portion.
Using the Exchange Repeatedly as a Long-Term Strategy
Nothing limits how many times a rental property owner can use a 1031 exchange over a lifetime, and this is where the tool becomes a longer-term planning strategy rather than a one-time transaction. Each successive exchange carries forward the previously deferred gain, including depreciation recapture, into the new property rather than resetting it. Investors who repeat this process indefinitely, sometimes called swapping until you drop, are relying on Section 1014: if the final replacement property is still held at the owner’s death, the heirs generally receive it with its basis stepped up to fair market value, which can eliminate the accumulated deferred gain and depreciation recapture entirely rather than merely postponing the tax. This treatment depends on current law and is not guaranteed to continue unchanged.
For an owner who no longer wants to manage a physical rental, a Delaware Statutory Trust, or DST, is one option that has become more common as a 1031 replacement property. A DST holds an interest in institutional-grade real estate and can qualify as like-kind replacement property, letting an owner exchange out of an actively managed rental into a passive fractional interest without giving up the tax deferral. DSTs carry their own fees, liquidity limits, and offering-specific risks, so they are worth discussing with a qualified intermediary and a financial advisor rather than treating as a default choice.
Key Takeaways
- Only real property held for investment or business use qualifies; California’s old personal-property exception ended January 1, 2025
- Replacement property must be identified within 45 days and the purchase completed within 180 days, with no state extension
- A qualified intermediary must hold the funds, and cash or debt relief received in the exchange is taxable as boot
- If an exchange fails the federal timeline, California requires 10-day notice to the FTB and withholding on the gain
- Exchanging a California property for an out-of-state property requires an annual FTB Form 3840 filing until the deferred gain is recognized
- Related-party exchanges carry a 2-year holding requirement before either side can sell
- Unexchanged gains are taxed as ordinary income in California, up to 13.3 percent, with no separate capital gains rate
- A rental destroyed by a declared wildfire disaster falls under Section 1033, not Section 1031, and keeps the standard 2-year replacement window rather than the 4-year window that applies only to a principal residence
- Repeated exchanges held until death can pass to heirs with a stepped-up basis under Section 1014, and a DST is one option for owners who want to exchange into a passive replacement property
A 1031 exchange can be a useful tool for a rental property owner who wants to move into a different market without paying capital gains tax immediately, but California’s added withholding and reporting rules leave little room for error on top of the federal deadlines. Speaking with a qualified intermediary and a tax professional before listing the relinquished property is the best way to confirm the exchange holds up on both fronts.
This content is provided for general informational and educational purposes only and does not constitute financial, legal, tax, or investment advice. Readers should consult with licensed professionals regarding their specific circumstances.
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