NSF's Cost-Sharing Policy

The U.S. National Science Foundation generally does not allow voluntary committed cost sharing in its proposals.

NSF's Proposal and Award Policies and Procedures Guide (PAPPG) details NSF's cost-sharing policy. Refer to PAPPG II.D.2.f(xii) for cost sharing information for NSF proposals, and PAPPG VII.C for cost-sharing information for NSF awards.


Programs with mandatory cost sharing

A small number of NSF's programs have mandatory cost-sharing requirements, which have been authorized by the NSF director, the National Science Board or legislation. The programs that require cost sharing are:


Projects with mandatory cost sharing

Two current NSF-funded projects have mandatory cost sharing:


Additional resources