This article analyses the practice of Covid‐related bank regulatory forbearance measures of eight East‐Central European Union member states from the perspective of differentiated integration. In line with the integration‐deepening nature of the Single Supervisory Mechanism, our expectation was that countries within the Banking Union (BU) would impose harmonized forbearance measures, while non‐BU members would use more discretional measures. Indeed, the practice of forbearance measures is significantly more harmonized within the BU than outside; however, there were also notable differences in the practice of BU members. For non‐BU member states, our expectation was that countries with the intention of favouring their domestic financial system would ease regulatory requirements more, while those that wanted to place the burden of the pandemic on foreign banks would ease these requirements less. However, the analysis only partially confirmed this expectation.