In a loan option system having a loan server accessible through a network to an external borrower computer and a loan processor for providing loan parameters to the loan server, systems and methods are provided for determining and adjusting a loan balance, via (1) receiving a principal value for a loan through the network from the borrower computer, the principal value corresponding to the loan balance, wherein the loan has an interest rate and a loan term corresponding to a specified number of payments throughout the loan, (2) upon a permissible omitted payment, increasing the interest rate, determining accrued interest, setting predetermined fees due to the missed payment, and applying the predetermined fees and accrued interest to the loan balance to produce a new balance, (3) retrieving the new balance from the loan processor to the loan server, and (4) providing the new balance to the borrower computer.