Data taken from Wikimedia Foundation Independent Auditors' Reports (section "Statements of Activities"), as linked in the table. Note that "net assets" exclude the more than $100 million held in the Wikimedia Endowment. "Expenses", however, include six annual payments of $5 million the Wikimedia Foundation made to the Wikimedia Endowment, from the fiscal year ended June 30, 2016, to the fiscal year ended June 30, 2021.

Financial development of the Wikimedia Foundation (in US$), 2003–2022
Black: Net assets (excluding the Wikimedia Endowment, which currently stands at $100m+)
Green: Revenue (excluding third-party donations to Wikimedia Endowment)
Red: Expenses (including WMF payments to Wikimedia Endowment)
Year Source Revenue Expenses Asset rise Total assets
2021/22 PDF $ 154,686,521 $ 145,970,915 $ 8,173,996 $ 239,351,532
2020/21 PDF $ 162,886,686 $ 111,839,819 $ 50,861,811 $ 231,177,536
2019/20 PDF $ 129,234,327 $ 112,489,397 $ 14,674,300 $ 180,315,725
2018/19 PDF $ 120,067,266 $ 91,414,010 $ 30,691,855 $ 165,641,425
2017/18 PDF $ 104,505,783 $ 81,442,265 $ 21,619,373 $ 134,949,570
2016/17 PDF $ 91,242,418 $ 69,136,758 $ 21,547,402 $ 113,330,197
2015/16 PDF $ 81,862,724 $ 65,947,465 $ 13,962,497 $ 91,782,795
2014/15 PDF $ 75,797,223 $ 52,596,782 $ 24,345,277 $ 77,820,298
2013/14 PDF $ 52,465,287 $ 45,900,745 $ 8,285,897 $ 53,475,021
2012/13 PDF $ 48,635,408 $ 35,704,796 $ 10,260,066 $ 45,189,124
2011/12 PDF $ 38,479,665 $ 29,260,652 $ 10,736,914 $ 34,929,058
2010/11 PDF $ 24,785,092 $ 17,889,794 $ 9,649,413 $ 24,192,144
2009/10 PDF $ 17,979,312 $ 10,266,793 $ 6,310,964 $ 14,542,731
2008/09 PDF $ 8,658,006 $ 5,617,236 $ 3,053,599 $ 8,231,767
2007/08 PDF $ 5,032,981 $ 3,540,724 $ 3,519,886 $ 5,178,168
2006/07 PDF $ 2,734,909 $ 2,077,843 $ 654,066 $ 1,658,282
2005/06 PDF $ 1,508,039 $ 791,907 $ 736,132 $ 1,004,216
2004/05 PDF $ 379,088 $ 177,670 $ 211,418 $ 268,084
2003/04 PDF $ 80,129 $ 23,463 $ 56,666 $ 56,666

A note on the separate status of the Wikimedia Endowment

The Wikimedia Endowment, held from 2016 to 2023 by the Tides Foundation and now a standalone 501(c)(3) nonprofit, is not and has never been included in Wikimedia Foundation assets, even though Wikimedia Foundation fundraising staff solicit donations to the Endowment and the Wikimedia Foundation itself made donations to the Endowment.[1]

The Endowment was set up in 2016 and was originally expected to reach $100 million in 2026; it reached the target five years sooner than expected.

Footnotes

  1. ^ "The Foundation has an agreement with the Tides Foundation that established the Wikimedia Endowment as a Collective Action Fund to act as a permanent safekeeping fund to generate income to ensure a base level of support for the Wikimedia projects in perpetuity. The Endowment is independent from the Foundation. From fiscal years ended June 30, 2016 through June 30, 2021, the Foundation provided irrevocable grants in the total amount of $30 million ($5 million per fiscal year) to the Tides Foundation for the purpose of the Wikimedia Endowment. The amounts are recorded in awards and grants expense." Quoted from Financial Statements 2021/2022, p. 15.

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