Recent proposals for a still missing European deposit insurance scheme (EDIS) argue in favor of a reinsurance framework. In this paper, we use a regime-switching open-economy DSGE model with bank default to assess the relative efficiency of such a scheme. We find that reinsurance by EDIS is more effective in stabilizing real activity, credit, and welfare than a national fiscal backstop. We demonstrate that risk-weighted contributions to EDIS are welfare-beneficial for depositors and discuss trade-offs policymakers face during the implementation of EDIS. We also find that macroprudential regulation and EDIS can complement each other and that EDIS can prevent bank runs under certain conditions.