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You are here: Home About Contact the Free Software Foundation Mailing address and telephone/fax numbers

How to contact the Free Software Foundation:

Are you a member of the press? Visit our Press Information page.

Free Software Foundation
51 Franklin Street, Fifth Floor
Boston, MA 02110

The Boston office will be closed on May 27 and July 3 and 4, 2024.

Telephone: +1-617-542-5942 (Individual phone extensions at the FSF)

Fax: +1-617-542-2652

General email:

To donate by check: mail to the address above. The FSF can accept Canadian checks; please ask your bank to add a corresponding US bank on the check so that we don't get charged fees for depositing it. If you plan to donate in any other currency, please contact for details on how to make a transfer from a foreign bank account. If it is a directed donation (e.g. for a sponsored project like Replicant), please write that on the memo line of the check. See more ways to donate to the FSF here.

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