Timothy Syndrome Alliance (TSA) is fiscally sponsored through Rare Village Foundation, a 501(c)3 tax-exempt organization and your donation is tax-deductible within the guidelines of U.S. law. To claim a donation as a deduction on your U.S. taxes, please keep your email donation receipt as your official record. We'll send it to you upon successful completion of your donation. Rare Village Foundation EIN: 83-4699994