The treasurer of the state of Illinois maintains a very nice website for unclaimed funds. I found a $200 insurance payment from 7 years ago that was sent to an old address, and a very small refund (less than $10) due my wife from another insurance company. I also found that half a dozen relatives have unclaimed funds (refunds from businesses, mortgage interest, forgotten safe deposit boxes, uncollected pension funds, ranging from less than $10 to several hundred dollars). I would think many other state governments have similar tools on their site. It's worth taking a few minutes to search, and pop in names of relatives or good friends. If you find yourself listed, you can print out a form from the site, mail it to the state treasurer unclaimed property division, and in my case, I got the $200 check about 5 or 6 weeks later. Note that there are private sites that charge you to research the same info, but there is no reason to pay them- stick with legitimate official sites. In particular if you've moved in the past 10 years, check the sites for any state you've lived in. Does anyone know if any other countries or gov't entities have similar programs?