No. Unlike some states that issue numbers to organizations to indicate that these organizations are exempt from state sales taxes, the IRS does not issue numbers specifically for exempt organizations. Federal tax-exempt numbers do not exist! While the Internal Revenue Service does issue Employer Identification Numbers (EINs), these are merely a unique identifier, similar to a Social Security number for an individual. Applying for and receiving an EIN says nothing about the organization's tax status; however, your organization needs an EIN to apply for tax-exemption.