The Histiocyte Society is recognized as a tax-exempt organization under section 501(c)3 of the Internal Revenue Code, Federal Tax ID number 22-3098990. The Society's most recent financial statements and documents can be viewed by clicking on the following links:
![](/resources/Pictures/Main%20Site/Buttons/2017%20IRS%20Form%20990.png)
![](/resources/Pictures/Main%20Site/Buttons/2015%20IRS%20Form%20990.png)