The National Directory of Certified Public Accountants

Ask A CPA - Casualty Losses

Casualty Loss - Deduction Limits

After you have figured the amount of your loss, as discussed earlier, you must figure how much of the loss you can deduct. You do this on Form 4684, section A. If the loss was to property for your personal use or your family's, there are two limits on the amount you can deduct for your casualty or theft loss. 1.You must reduce each casualty or theft loss by $100 ($100 rule). 2.You must further reduce the total of all your losses by 10% of your adjusted gross income (10% rule).

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