My mom has $5 in her savings account but she put this in her account in 2003 and it has not increased at all. I thought in a savings the amount would have increased especially it being 14 years. everytime she receives statement from credit union it always says $5 and has shown that for years. the dividend rate says .25%
I agree with dragontears. Also, check your bank. Some places required at least a $100 minimum balance in order to earn interest.
the minimum amount is $5 for the savings
That might be the minimum necessary for the account to exist, but it is not likely the minimum amount required for interest to be earned.
As the others stated, I would expect the minimum balance necessary for interest to be earned to be $50-100. It allows them to save on not only interest paid, but computing power and man-hours, calculating and reviewing tons of accounts with tiny amounts left in them.