On the one hand required reserve is a direct, outdated instrument of central bank influence on the money amount in circulation, but on the other hand it has negative impact on the level of bank revenues (among other things bears on bank assets, increase costs of deposit collection).

In Poland considering the fact that required reserves rate is very high and founds transferred to required reserve accounts do not bear interest, required reserves must be treated as a kind of tax which is paid by commercial banks in favour of central bank. Since the central bank is owned by state it means that required reserve becomes indirect budgetary revenue.

Therefore fundamental changes in Polish banking law in the area of required reserves are necessary. They should be focused on increasing profitability and competitivity of Polish banking sector. The closer is Poland membership in European Union, the stronger is threat of competence faced from European banks that are not bearded to that extend with required reserves. The European System of Central Banks decided that required reserves would play supplementary role in its monetary policy.

Such an extensive policy considering required reserves should not be promoted in Poland. Then it comes true the Goodhart rule according to which any attempt undertaken by state authority in order to limit banking activity inevitably leads to certain activities movement to uncontrolled sphere. In relation to required reserves it leads to a procedure named widow dressing which basically means insincere lowering level of collected deposits in the day of required reserve settlement.