All donations are tax deductible. Many employers have matching gift programs that can double or triple your charitable contribution!Include the nonprofit's EIN so the the donor can to check the charity's tax-exempt status with the IRS. Otherwise, please fill out the form below. In addition to the tax deduction, capital gains taxes is not due on gain in the donated securities. 9 Residence information. Answer ALL the questions and fill in the appropriate boxes. The Oakland Museum of California is a 501(c)3 tax-exempt organization and donations are tax deductible within the guidelines of U.S. law.