Abstract: A checkbook balancing system in which the user does not have to enter each checking transaction into the system but only transactions which bring the checkbook in line with the bank statement and vice versa. The display of the system is divided into two halves. One half is for adjustments to the bank balance and contains information appearing in the checkbook but not on the bank statement. The other half is for adjustments to the checkbook and contains items appearing in the bank statement but not in the checkbook. Further, the halves can be divided into quarters or quadrants. Quadrant (A) contains checks which were written but not paid by the bank. Quadrant (B) contains deposits and other adjustments appearing in the checkbook but not in the bank statement. Quadrant (C) contains bank charges and adjustments appearing on the bank statement but not in the checkbook. Quadrant (D) contains bank credits and adjustments appearing on the bank statement but not in the checkbook.