Characteristic for the Bangladesh Delta Plan is that it is not only a plan but also takes a step further into elaboration of the proposed measures into investments, to find out the financial requirements to implement it. This chapter describes and explores financial and funding aspects. The formed investment plan (IP) is based on a large number of in line with the formulated strategies proposed measures, which have been elaborated into Project Concept Notes. A selection of Project Concept Notes is included in the IP. The financing strategy consists of several contributions from GoB and different partners. Here, recent developments and funding constraints are highlighted. An important background for the financing strategy is the government commitment in BDP 2100 to spend 2.5% of the GDP in Delta Plan-related investments. Of this, approximately 2% of GDP would be for new investments, and 0.5% of GDP is for operations and maintenance (O&M). 0.5% of GDP allocation of O&M is important as historically, most of the water projects of Bangladesh obtained very limited O&M funding. Due to a lack of O&M funding, and inadequate investment in upgrading existing infrastructure, much of the investments made in water resource management in the form of embankments, polders, and to improve inland waterways navigation do not remain in good shape to develop them with respect to climate change-related investments. Besides GoB contributions, additional financial resources are explored. To make use of the Green Climate Fund, six proposals have been submitted. Also funding is sought in the form of private sector investments, by innovative contracting and public–private partnership.