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.

The most recently available audited fiscal year report is available here.
2019 / 2020 (PDF 124KB).

An unaudited financial summary was included in the institution's annual Year Book beginning in 2006-07. Previous year books include the complete audited financial statements.