To deduct a casualty loss, you must itemize your deductions on Schedule A. The amount of your deduction is limited to the amount of the loss that exceeds 10% of your Adjusted Gross Income after a $100 deductible
As an example if you had a $5,000 property loss, and your Adjusted Gross Income is $60,000, your result would be as follows
After deducting $100, you are left with $4,900 which is below 10% of your Adjusted Gross Income of $6,000.
Your would therefore have no deduction.
To claim a property loss
To deduct a casualty loss:
· Type in casualty loss in the search box, top right of your screen, click the
magnifying glass
· Click the jump to casualty loss link in the search results
· Follow to prompts and online instructions
If it's a "qualified" Hurricane Harvey, Irma or Maria disaster, the subtraction is $500 and is not subject to the 10% of AGI rule. The amount of the loss on line 15 of Form 4684 goes to Schedule A line 28 and is added to the other itemized deductions, or to the standard deduction if that is larger, and from there to Form 1040 line 40.