Uprawnienie dłużnika do zarachowania spełnianego świadczenia

The article outlines the statutory regulation of imputation of payment in Polish law, which applies to payments if the contracting parties do not stipulate other rules in the contract. The considerations focus primarily on the time limitation of the debtor's exercise of the entitlement to apply a payment .upon performance.. The article argues in favour of linking this term with the term 'forthwith'. In addition, it reviews the case law in this area, identifying the most reasonable approaches and proposes amendments that may clarify the legal framework while balancing the interests of the creditor and the debtor.