A substantial increase in sector financing is needed for governments to achieve Sustainable Development Goal 6 (SDG 6): Estimates by The World Bank indicate that the present value of additional investment needed in WASH through 2030 will exceed US$1.7 trillion (Hutton & Varughese 2016). Existing funding falls far short of this amount, with some countries needing to increase their investment in the WASH sector by up to six times.
Governments also have limited room to borrow as they are facing internal fiscal constraints and high debt levels. Where Official Development Assistance (ODA) is available, borrowing countries are also struggling to absorb it. Much of the available public and ODA financing will be needed for extending access to unserved and poorer population in marginalized and remote areas, and for sanitation.