Casualty (Theft) Loss: Adjusted Basis
Taxpayers, who have been defrauded, may be eligible for a tax loss deduction for their fraud damages if the fraud is considered theft under their state’s law (see Gerstell v. Commr. 46 T.C. 161 (1966)).
The IRS has published detailed guidelines for Casualty (Theft) Losses which include: Adjusted Basis
The measure of your investment in the property you own is its basis. For property you buy, your basis is usually its cost to you. For property you acquire in some other way, such as inheriting it, receiving it as a gift, or getting it in a nontaxable exchange, you must figure your basis in another way, as explained in Publication 551.
Adjustments to basis. While you own the property, various events may take place that change your basis. Some events, such as additions or permanent improvements to the property, increase basis. Others, such as earlier casualty losses and depreciation deductions, decrease basis. When you add the increases to the basis and subtract the decreases from the basis, the result is your adjusted basis. See Publication 551 for more information on figuring the basis of your property.
Casualty (Theft) Loss: Progressive Deterioration
Taxpayers, who have been defrauded, may be eligible for a tax loss deduction for their fraud damages if the fraud is considered theft under their state’s law (see Gerstell v. Commr. 46 T.C. 161 (1966)).
The IRS has published detailed guidelines for Casualty (Theft) Losses which include: Progressive Deterioration
Progressive deterioration.
Loss of property due to progressive deterioration is not deductible as a casualty loss. This is because the damage results from a steadily operating cause or a normal process, rather than from a sudden event. The following are examples of damage due to progressive deterioration.
• The steady weakening of a building due to normal wind and weather conditions.
• The deterioration and damage to a water heater that bursts. However, the rust and water damage to rugs and drapes caused by the bursting of a water heater does qualify as a casualty.
• Most losses of property caused by droughts. To be deductible, a drought-related loss generally must be incurred in a trade or business or in a transaction entered into for profit.
• Termite or moth damage.
• The damage or destruction of trees, shrubs, or other plants by a fungus, disease, insects, worms, or similar pests. However, a sudden destruction due to an unexpected or unusual infestation of beetles or other insects may result in a casualty loss.