Should I report check fraud?

[Rainman12]

Please elaborate with details. How do circumstances potentially affect your tax return? Is this a Business, or Personal matter?

[RobertB4444]

The IRS allows a deduction for theft and casualty or disaster losses on your tax return.  It's not a great deduction.  In order to take it the loss must first be bigger than 10% of your income.  Whatever amount exceeds that 10% is deductible on your return.

So, to answer your question, you should report check fraud on your tax return if it resulted in a loss for you greater than 10% of your income for the year (after you adjust for any insurance reimbursement).

It gets more complicated than that, too.  Here is the IRS article that discusses it.