FAQs
Got a Question?
What is Tandems EIN/Tax ID?
Our EIN/Tax ID is: 99-4252659
What are the tax implications of my contribution?
Tandem is a registered U.S. 501(c)(3) tax exempt nonprofit(EIN/Tax ID: 99-4252659). If you’re a U.S. donor your donations are tax-deductible to the full extent allowed by law. For international donors, please see your specific country’s tax code to see if your donation is tax deductible.
How can I donate by check?
You may donate by check by mailing us at:
Tandem Fund Inc.
PO Box 272
Old Greenwich, CT, 06870.
USA
For any questions, please get in touch with us at: team@tndm.org
Does your work align with any of the United Nations SDGs?
Yes – our projects align with these SDGs:

How can I get in touch?
You can get in touch with us by emailing us: team@tndm.org