Line 15
Complete and attach Form 4684 to figure the amount of your loss. Only enter the amount from Form 4684, line 18, on line 15.
Don't enter a net qualified disaster loss from Form 4684, line 15, on line 15. Instead, enter that amount, if any, on line 16. See Line 16 , later, for information about reporting a net qualified disaster loss.
You can only deduct personal casualty and theft losses attributable to a federally declared disaster to the extent that:
The amount of each separate casualty or theft loss is more than $100, and
The total amount of all losses during the year (reduced by the $100 limit discussed in (1)) is more than 10% of the amount on Form 1040 or 1040-SR, line 11b.
See the Instructions for Form 4684 and Pub. 547 for more information.