Some of the most immediate concerns in a natural disaster arise from physical damage to property. Taxpayers learn the extent of damage to their property and consult with insurers to understand the financial impacts. Affected taxpayers and their advisors should familiarize themselves with the rules for assessing losses associated with casualty events, and the options for early deductions or deferring gain.
Assessing and recognizing losses
As a general rule, business taxpayers are entitled to deduct losses when property is destroyed in a casualty event under section 165. The measure of the loss is generally the lesser of the diminution of value or the amount of the adjusted basis in the property. If property is totally destroyed and the value of the property is greater than that adjusted basis, the amount of the loss equals the taxpayer’s adjusted basis.
Taxpayers are only entitled to deduct losses that are not compensated by insurance or other proceeds, meaning taxpayers whose property is insured may be in a holding position that prevents them from taking a deduction until they know how much insurance they will receive.
Special consideration for individual taxpayers
Under the Tax Cuts and Jobs Act (TCJA), for years 2018 through 2025, individual taxpayers can only deduct casualty losses for properties in a federally declared disaster area as prescribed by the president of the United States. This is a basic requirement to be able to take any deduction, but taxpayers are still subject to other limits.
An individual taxpayer affected by a federally declared disaster is still subject to the TCJA limitations per section 165(h), which states that a net casualty loss is allowed only to the extent it exceeds 10% of adjusted gross income (AGI) and a $100 floor.
Although certain IRS articles and publications indicate that qualified disaster losses are not subject to the 10% AGI limitation, it is important to clarify that qualified disaster is a technical term; as of early October, the 2024 disasters had not been declared qualified disasters by Congress.
The difference in terminology is subtle, but a loss attributable to a federally declared disaster is not equivalent to a qualified disaster loss. The 10% AGI limitation is a statutory rule, which means only an act of Congress can make a disaster a qualified disaster with losses not subject to the 10% AGI limitation. The IRS does not have discretion to waive the statutory 10% AGI limitation.
Deferring casualty gains
When insurance proceeds (or fair market value awards in a condemnation) exceed basis, taxpayers may experience a casualty gain (i.e., an involuntary conversion).
Section 1033 allows taxpayers to defer this gain by purchasing replacement property that is similar or related in service or use to what was destroyed.
In a presidentially declared disaster, section 1033(h)(2) provides a special rule that treats any tangible property purchased for use in a taxpayer’s trade or business as qualified replacement property for any converted property that the taxpayer held for use in its trade or business or for investment. This means taxpayers have very broad latitude to choose what they want to purchase, even if it is completely different from the property that was lost.
Note that section 1033 is also available for personal use property, but the special rule does not apply to individuals, who must stick to property replacing what was destroyed.