Several low-income and lower-middle income countries with access to concessional World Bank financing are now negotiating a debt restructuring program, which entails the sharing of losses by the different creditors. The goal of this note is to estimate the size of losses, at the current juncture of the debt crisis, and how they can be distributed among the different types of creditors. We also consider how the MDB system can play a more prominent role in this context. There have been suggestions to put MDB’s preferred creditor status in question. In this paper, which focuses on the role of IDA, we propose instead to view its participation as providing new loans and estimate a possible envelope. We start by identifying countries that require debt restructuring and estimate the amount of debt reduction needed to bring them back to a sustainable path. In a second step, we distribute financial contributions across creditors. One contribution of this paper is to propose alternative approaches to Comparability of Treatment: not only as proportional reduction in present value claims, but by requesting a higher contribution from non-concessional lenders. […]