One popular free bill pay service is PayPal, which many sites, business and individuals use to both accept and send payments. Another helpful service is MyCheckFree, which allows users to receive bills directly in their email inboxes and send payments to any affiliated billers.
Two banks that offer free bill paying services are Bank of America and CitiBank. Both of these establishments offer automatic bill payments and even provide the option of sending paper checks to businesses that do not take electronic transfers. The banks record each online payment in the user's account, so he can easily look up past transfers.