The amount of loan to be granted from a savings and loan association depends on the amount of funds accumulated during the savings phase. Repayment installments are also the function of variables affecting total amount of deposit and interest. Their amount is also affected by the average rediscount rate during the credit term, which determines the cost and repayment time of the credit. Principles of savings and lending applied by banks, related to payment indexation and repayment schedule, are also of a great importance. With the same regulations related to the savings phase, repayment under the system of fixed write-offs is heavier for the borrower during first months of lending than the repayment according to the schedule of fixed payments. With the same lending terms and conditions, payment indexation increases credit principal and installments, however, it is more favorable in terms of satisfying housing needs. Savings and loan associations existing in Poland (run by Bank Œlšski SA and Bank Pekao SA) apply different solutions both during savings and lending phases. Therefore, it is aimless to make direct comparisons in this aspect. It can be only assumed that the average annual growth of income in the savings phase, necessary to keep real payments on the unchanged level, is lower at Bank Œlšski SA (2-6%) than at Bank Pekao SA (6-13%). Indexation of payments and fixed repayment installments under prolonged lending terms seem to be an optimal solution. It allows to avoid savings depreciation as well as minimize and distribute evenly the repayment burden.