I owned some of those series E bonds when I was young. They made a great birthday present and helped put me through college. Governments can do that because people assume (not always correctly) that they are eternal. Eventually the government decided they were a bad investment and stopped the interest, so you had to cash them in. It only works if you are sure that you can redeem the principle when you need it. If a company sold such a bond, you would likely lose some or all of your money if they go bankrupt. Bond holders get paid before stockholders, but that only applies if there is money to be distributed.