165 Loss

Definition: The 165 loss, also known as a loss deduction under Internal Revenue Code Section 165, allows taxpayers to deduct certain losses sustained during the tax year that are not compensated by insurance or other means. These losses may include casualty, theft, or business-related losses, depending on the taxpayer’s situation and the nature of the property involved.

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What Is a 165 Loss?

A "165 loss" refers to Section 165 of the Internal Revenue Code, which governs the federal income-tax deduction for losses — including business losses, investment losses, and personal casualty and theft losses. It defines when and how a taxpayer can deduct a loss that is sustained during the year and not compensated by insurance or otherwise.

What § 165 Covers

Casualty Losses and Florida Storms

For individuals, the deduction for personal casualty losses is currently limited (for tax years 2018–2025) to losses attributable to a federally declared disaster. That limit is highly relevant in Florida: damage from a hurricane that triggers a federal disaster declaration may support a casualty-loss deduction, while everyday personal losses generally do not. Because the rules are technical — and depend on the property's basis, insurance recovery, and the disaster declaration — affected owners should work with a tax professional. This is a federal matter; Florida has no state income tax.

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Barnes Walker's attorneys handle Florida property and storm-loss matters with attention to their federal tax consequences. Request a legal inquiry for assistance.

Federal Law Reference

26 U.S.C. § 165

Governs the deduction of losses; for 2018–2025, an individual’s personal casualty loss is generally deductible only if attributable to a federally declared disaster, reduced by insurance recovery.

Reviewed by the attorneys at Barnes Walker, Goethe, Shea & Robinson, PLLC

Disclaimer: The information and opinions provided are for general educational, informational or entertainment purposes only and should not be construed as legal advice or a substitute for consultation with a qualified attorney. Any information that you read does not create an attorney-client relationship with Barnes Walker, Goethe, Shea & Robinson, PLLC, or any of its attorneys. Because laws, regulations, and court interpretations may change over time, the definitions and explanations provided here may not reflect the most current legal standards. The application of law varies depending on your particular facts and jurisdiction. For advice regarding your specific situation, please contact one of our Florida attorneys for personalized guidance.

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