Eaton Canyon Fire: The Community Property Split Election Strategy for MFS Filers

This is an advanced strategy for California married couples filing separately who were affected by the Eaton Canyon fire. It's based on a novel reading of the interaction between community property law, IRC §165(i), and the MFS filing rules — and while there's no directly on-point authority, the legal theory is sound.

If you and your spouse own your residence as community property (which is the default in California for property acquired during marriage), you each have a 50% ownership interest in the casualty loss. And because you're each separate taxpayers when filing MFS, you can each make different §165(i) elections.

The Strategy

Here's the setup for a $100,000 total casualty loss (after insurance and the $100 floor):

• Spouse A makes the §165(i) election, claiming their 50% share ($50,000) on the 2024 return.
• Spouse B does not elect, claiming their 50% share ($50,000) on the 2025 return (the disaster year).

But here's the critical twist: under California community property law and IRS Publication 555, each spouse's loss — whether claimed in 2024 or 2025 — retains its community character. That means each spouse's $50,000 deduction gets split 50/50 between both spouses on their MFS returns.

The result:

• Spouse A: $25,000 deduction in 2024 + $25,000 in 2025 = $50,000 total
• Spouse B: $25,000 deduction in 2024 + $25,000 in 2025 = $50,000 total

Total deducted: $100,000. No more, no less than the economic loss. But the timing and distribution change — and that's where the tax benefit lives.

Why This Can Save Tax

Personal casualty losses are deductible only to the extent they exceed 10% of AGI. By spreading $25,000 to each spouse in each year (instead of concentrating $50,000 to one spouse in one year), you apply the 10% AGI floor four times against smaller amounts.

If both spouses have $80,000 AGI in both years, the 10% floor is $8,000 per spouse per year. Each spouse deducts $25,000 – $8,000 = $17,000 per year, for $34,000 each — $68,000 combined across both years. The math varies with AGI, so model your specific numbers.

The Legal Foundation

The position rests on established authority. Kamins v. Commissioner (54 T.C. 977) established that casualty losses on community property are divided between spouses. Poe v. Seaborn (282 U.S. 101) established that community property principles apply to deductions as well as income. IRS Publication 555 explicitly calls a casualty loss on a community home a "community loss" and requires MFS filers to split community deductions.

The novel element is the split election — one spouse electing under §165(i), the other not. No Revenue Ruling, PLR, or Tax Court case has addressed this exact scenario. But the logic follows directly from the existing framework: §165(i) changes only the timing of the deduction, not its character as a community deduction subject to the 50/50 split.

Level of Authority

This position has at least substantial authority (approximately 40% threshold) and is, in our assessment, more likely than not correct (60–70% probability). Filing Form 8275 (Disclosure Statement) provides additional penalty protection.

The IRS could argue that once Kamins divides the loss into two separate $50,000 amounts, each spouse's loss becomes their own — and the community property split shouldn't apply on the back end. We believe this misreads the interaction between the timing election and the community character of the deduction, but the absence of directly on-point authority means there's some risk.

The total deduction is exactly $100,000 — equal to the economic loss. There's no double-dipping. The strategy only changes how and when the deduction flows to each spouse's return.

Filing Requirements

• Form 8958: Both spouses file this form in both 2024 and 2025 to allocate community income and deductions.
• Form 4684: Each spouse files this showing their $25,000 casualty loss in each applicable year.
• Form 8275: Recommended disclosure statement flagging the novel application of the split election.
• §165(i) election statement: Spouse A attaches the required election to their 2024 return.

The Bottom Line

For California MFS filers affected by the Eaton Canyon fire, this community property split strategy can increase total deductible casualty losses by spreading the 10% AGI floor across four applications instead of one or two. The legal foundation is solid, the total deduction equals the actual loss, and Form 8275 disclosure reduces penalty risk. Model the numbers for your specific situation — the benefit depends entirely on each spouse's AGI in both years.