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Claiming the Loss
Individuals are required to claim their casualty and theft losses as an itemized deduction on Form 1040, Schedule A, Itemized Deductions.
Report casualty and theft losses on Form 4684 , Casualties and Thefts. Use Section A for personal-use property and Section B for business or income-producing property.
So far - you need to use both - form 4684 and schedule A.
Let me know if you need any help with reporting.