The changes in the payment system settings for electronic commerce, caused by Bulgaria’s transition from the lev to the euro, were implemented by the Ukrainian company Ukrainian Processing Center (UPC) on behalf of its client — one of the largest banks in Bulgaria. 

Within a tight deadline, UPC made a series of adjustments that enabled hundreds of Bulgarian online merchants, starting from January 1, 2026, to accept payments in euros, replacing the former national currency — the lev, which ceased to be a means of payment due to Bulgaria’s adoption of the common European currency.

The scope of work for this project included developing solutions for accepting payments in euros by Bulgarian online merchants, such as transaction authorization in the European currency (including offline transactions), clearing, and other related services. UPC’s services also included testing the innovations, implementing, and providing ongoing support.

The Ukrainian company UPC participates in implementing e-commerce payment solutions for leading banking groups in Ukraine such as Credit Agricole, OTP, Raiffeisen Bank International, Intesa Sanpaolo, Piraeus, and others. Besides Ukraine and Bulgaria, UPC’s solutions ensure convenient and secure online payments in markets such as Austria, Albania, Bosnia and Herzegovina, Kosovo, Serbia, Hungary, and Croatia.

“The transition from the lev to the euro in Bulgaria took place on New Year’s Eve: UPC specialists, together with foreign colleagues, spent it while finalizing all the settings. Moreover, this complex transformation was accomplished without any disruptions, which is a great achievement for our company’s team.

Among other things, we are proud that UPC continues to conduct and develop business in European countries. It is important for us that Ukraine is associated in the world not only with military actions but also with innovative fintech projects,” commented Anton Romanchuk, CEO of UPC.