I hoping to get some help here on filing a form 4684 on my tax return for a casualty loss to a rental property. Basically what this is if I understand it correctly is when there is a major insurance claim on a property, the IRS allows you to write off the entire expense of fixing a property after a loss in the tax year that it happened instead of depreciating it over time. I paid roughly $5,000 out of pocket after the insurance claim to complete the renovation to my rental property. Anyone ever do one of these forms, and if so how do you fill it out correctly so that it is acceptable for the IRS?