The difference between a personal loss casualty loss any business casualty? Are casualty losses investor losses? Solution The difference between a personal loss casualty loss any business casualty? A casualty loss can result from the damage, destruction or loss of your property from any sudden, unexpected, or unusual event such as a flood, hurricane, tornado, fire, earthquake or even volcanic eruption. A casualty does not include normal wear and tear or progressive deterioration. A personal loss casualty applies to personal property you own. Such as your home, car or other expensive property. Whereas a business casualty loss applies to business property such as your building, business vehicles and equipment, etc. Are casualty losses investor losses? No, but they can affect investor losses. Casualty losses are related to the specfic business and are deducted or written off against that business. Not the individual investors. However, when casualty losses occur they can affect the business financial performance and cause investor losses. .