The main problem of capital supply is the suitable selection of funding sources for enterprise. Gaining strategic investor or inducing hitherto existing owners to enlarge their own capital is difficult and complicated process, particularly in the period of crisis. Sharpened credit politics, conducted by banks in relation to enterprises, forces companies to search for the alternative funding sources. Short - term commercial papers belong to the mentioned sources. It is the very widespread instrument of funding on developed financial markets. In the last period the interest in utilization of short-term commercial papers in funding enterprises grows also in Poland.