As I posted, we've been with USAA for 30 years with mortgages, car insurance (we have two grown sons who were on our policies with their own older, used cars from age 16-22), umbrella policy and riders for jewelry. It is based on an account balance that each policy holder has at the end of the year. That balance is added to every year based on several factors, then an amount is taken out of the account to figure out the dividend. So, longevity, amount you've spent, how many policies, etc all figure into it. One year, we had bad hailstorms in the area and they had to pay out on a lot of policies, so the dividend was much lower. This is why our dividend was $364. Our oldest son who is 27 this month has owned a townhouse for 2 years and has had his own auto policy for 5 years, got $50. I havent talked to our youngest son yet to see what he got. Both have perfect driving records and low insurance costs.
Think of it as a profit sharing and the more you've invested (time and money), the larger your dividend.