This document analyzes structural changes in Bulgaria's banking sector over the past 20 years of transition to a market economy. It describes the major factors driving changes like privatization, bankruptcies, and foreign direct investment. The banking sector is now bank-based and stabilized with healthy finances and sufficient equity. While foreign banks have expanded, concentration levels remain within acceptable limits. The document concludes that Bulgaria's banking sector stability depends on monetary policy, foreign capital influence, and positive state intervention when needed.