To provide a transaction processor where a display part in a PIN (password input means) pad is not required by issuing a money amount confirmation slip with a printed transaction money amount before adjusting a transaction money amount, that is, before a password is inputted in the PIN pad.

The transaction processor 1 issues the transaction money amount confirmation slip 10 where the transaction money amount and the present date or the like are printed based on previously inputted transaction contents before receiving the input of the password in the PIN pad 7. Consequently, the transaction money amount is confirmed by the slip 10 so that the PIN pad 7 without the display part for displaying the transaction money amount is applicable. The PIN pad 7 is constituted to be small and light accordingly. Then delivery is easily executed to a customer and the production cost of a device main body is made to be inexpensive.