The Carnegie Institution is an endowed, independent, nonprofit institution. Significant additional support comes from federal grants and private donations. Its fiscal year is between July 1 and June 30. Starting in 2006-07, an unaudited financial summary was included in the institution's annual Year Book. Previous editions of the Year Book incuded the complete audited financial statements.

The most recent Carnegie Year Book (2019/2020) is available here

The most recently available audited fiscal year report (2019/2020) is available here.