The late-2017 tax-reform package changed the rules for personal casualty losses, which now are only deductible if they occur in a federally declared disaster area. As a result, if a home is destroyed in a forest fire or other disaster within a declared disaster zone, the homeowner can claim a casualty loss on that year’s tax return.
However, if a home is destroyed as a result of a normal accident – or is destroyed in a natural disaster but lies outside of a disaster zone – the homeowner cannot claim a casualty loss. These rules may not be fair, but there is nothing that can be done about them (other than calling congressional representatives to indicate your displeasure). Currently, the rules are only in effect for the years 2018 through 2025. Because of these rules, you should also make sure that your home insurance coverage is adequate.