Although it is believed that the UN SDGs help underpin economic stability and sustainable economic growth, the implementation of the SDGs is facing major obstacle, i.e. rising public debt in some developing countries. This was highlighted in the report on financing for development issued by the UN cooperating with the IMF. 

40 percent of low-income countries face high risk of debt and several developing countries are falling behind due to conflict and fragility, e.g. Chad, D.R. Congo, and Haiti. This risk could be attributed to several key factors and requires further efforts and supports. Firstly, a key problem is low tax revenue and weak international support. Many of these countries are unable to raise enough revenue. There are many reasons for low tax revenue, e.g. narrow tax bases, weak tax administration and continued over-reliance on extractive industries, as well as tax evasion. 

To raise more revenue, not only domestic efforts but also international collaborations are needed. International support may require developing new international standards, and the aid of Official Development Assistance (ODA). Secondly, since there are large investment needs, attracting private investment in support of the SDGs is important. Developing countries must continue building competitive business environments including improving regulatory frameworks and developing infrastructure projects. Policymakers also utilize public-private partnerships to share risks but such activities will also add to debt burdens, which need to be managed carefully. Thirdly, although greater access to international financial markets and lending by new creditor have unlocked financing and investments problems arise for different reasons. When the risk of debt crisis is high, when a country is hit by economic shocks or natural disaster, or when resources are not spent well, a quick response to lessen the immediate financial stress can make difference between harm and recovery. In the collaborative report provided by the UN and the IMF, they are committed to deepening their support for the SDGs.