The day after the fire I heard nothing but cries and saw nothing but tears. I know families from Sierra Madre and Altadena — people I grew up around, people who called me because they didn't know who else to call. Everything was gone. Just gone. Dust. I still can't explain how it got hot enough to melt brick.
Tom was one of the first clients I sat with. He came in the way almost every Eaton Fire client comes in — certain of one thing. He had lost everything, so he had a loss. A tax loss. The kind you deduct. It made complete human sense. He had suffered a real, devastating, life-altering loss. The tax code allows casualty loss deductions. What was there to question?
I let him talk through it. I wrote down the numbers as he gave them to me — what he paid, what he'd put into the house, what insurance had paid, what Edison might settle for. And then I ran the formula. The IRC §165 formula. The one that subtracts every dollar of reimbursement before a deduction survives.
The number that came back wasn't a loss. It was zero. And below zero — a gain.
Tom stared at the screen for a long moment. "So I lost my house," he said, "and I owe taxes?"
Not if we do this right. But first he needed to understand why the tax code's definition of "loss" is nothing like the English language's definition — and what that meant for everything that came next.
The most common thing I hear from Eaton Fire families right now is: "I lost my home, so I must have a tax loss I can deduct." That instinct makes complete human sense. The tax code, unfortunately, does not work that way — and the mismatch between what feels true and what the numbers actually show is where the most expensive mistakes get made.
There are two completely separate calculations running on two separate tracks. Most advisors — and most clients — are conflating them. Understanding the difference is the single most important tax concept for any Eaton Fire homeowner with an Edison settlement on the horizon.
Here is where it gets counterintuitive. The answer, for most Eaton Fire homeowners expecting a significant Edison payment, is yes.
Under IRC §165, the casualty loss deduction is not simply "what you lost." It is a specific formula:
Here is what this looks like for a real Eaton Fire fact pattern. Homeowner paid $1.1M, made $150K of improvements, FMV before the fire was $1.3M, FMV after was $450K. Insurance paid $523K on the structure. Edison is expected to pay $2M.
| Calculation | Amount |
|---|---|
| FMV decline ($1,300,000 − $450,000) | $850,000 |
| Adjusted basis (purchase + improvements − land) | $1,030,000 |
| Lesser of the two — the deduction cap | $850,000 |
| Less: insurance received | ($523,000) |
| Less: Edison settlement | ($2,000,000) |
| Net casualty loss remaining | ZERO — proceeds exceed the cap by $1,673,000 |
The combined proceeds ($2,523,000) are nearly three times the measurable loss ($850,000). The deduction is gone. Not reduced — gone entirely.
And here is the number that matters most for planning: Edison would need to pay less than $327,000 for any loss deduction to survive. Once Edison exceeds that amount, the §165 deduction reaches zero — regardless of how devastating the loss feels.
"The fire created a real loss. But the tax code only measures what you are not made whole for. Edison paying $2,000,000 more than made this family whole — so by the IRS's math, there is nothing left to deduct. What they have instead is a gain."
This is the question most advisors are not explaining clearly — and it is the source of most of the expensive mistakes I am seeing in Eaton Fire cases right now.
The two calculations ask two completely different questions. They use different inputs, different formulas, and can produce completely different results on the same set of facts.
| Calculation | Question It Asks | Formula | Result for This Client |
|---|---|---|---|
| §165 Loss | Were you fully made whole? | Lesser of basis/FMV decline, minus all proceeds | ZERO — over-compensated by $1.67M |
| §1001/§1033 Gain | Did you receive more than your basis? | Proceeds minus adjusted basis | $970,000 realized gain |
A homeowner can simultaneously have zero deductible loss and a six-figure taxable gain. Those are not contradictory. They are just two different questions with two different answers.
Under IRC §1001, when you receive more than your adjusted basis in the property, you have a realized gain — full stop. Edison paying $2M against a $1.03M adjusted basis produces a $970,000 realized gain. That gain is taxable unless you do something about it. The something is the §1033 election.
What most advisors miss is that the disappearance of the casualty loss is not necessarily bad news — it means the client was more than made whole, which is a better problem to have. The tax question shifts entirely from "how do I claim my loss" to "how do I shelter my gain."
Under IRC §1033, proceeds from an involuntary conversion — a fire destroying your home qualifies — can be deferred into replacement property. If the proceeds are reinvested in a replacement home, the gain is deferred until the new home is eventually sold, at which point the primary residence exclusion under IRC §121 may eliminate it entirely.
For the client in the fact pattern above, the §1033 math works as follows:
| §1033 Gain Deferral | Amount |
|---|---|
| Edison proceeds (amount realized) | $2,000,000 |
| Adjusted basis | ($1,030,000) |
| Realized gain | $970,000 |
| Rebuild cost (replacement property) | $1,250,000 |
| Gain deferred — rebuild cost exceeds gain | $970,000 |
| Gain recognized and taxable in 2027 | $0 |
The rebuild cost of $1,250,000 exceeds the realized gain of $970,000, which means the §1033 election defers the entire gain. Potentially zero tax on a $2M settlement. This is the strategy that replaces the casualty loss that no longer exists.
The critical requirement: the §1033 election must be filed properly. It does not happen automatically. And your basis in the new property — which carries forward to determine future gain — must be maintained correctly. Both of those are return-preparation decisions, not planning concepts.
This is the scenario that keeps me up at night on behalf of clients who filed before calling me. If a casualty loss was claimed in 2025 and Edison settles in 2027, two things happen simultaneously — and both are bad.
First, under IRC §111, the Edison proceeds that cover the prior deduction are recaptured as ordinary income in the year received, to the extent the prior deduction produced a tax benefit. Not capital gain — ordinary income. At combined federal and California rates near 50% for many Altadena households, that is a painful conversion.
Second, taking the casualty loss in 2025 reduces your adjusted basis under IRC §1016(a)(1) by the amount of the deduction. A lower basis means a larger §1033 gain in 2027. If the gain grows large enough to exceed the rebuild cost, the excess gets recognized — meaning taxable — in the settlement year. For the client in this fact pattern, a premature $306,900 casualty loss in 2025 would push the 2027 §1033 gain $26,900 above the rebuild cost and create unnecessary recognized income.
The correct path for most Eaton Fire filers in 2025 is an open transaction disclosure — not a loss claim. It preserves every option, triggers no recapture, and leaves the §1033 strategy intact for the year Edison actually settles. See the full analysis of why rushing to deduct costs more than it saves.