You may get help with questions about tax-exempt organizations and tax-exempt status from the IRS Exempt Organizations Division: EO Web Site [ www.irs.gov/eo] IRS TE/GE Customer Service You may direct technical and procedural questions concerning charities and other nonprofit organizations, including questions about your tax-exempt status and tax liability, to the IRS Tax Exempt and Government Entities Customer Account Services at (877) 829-5500 (toll-free number). If you prefer to write, you may write us at: Internal Revenue Service Exempt Organizations Determinations P.O. Box 2508 Cincinnati, OH 45201 You may also contact the Taxpayer Advocate Service, an independent organization within the IRS that helps taxpayers resolve problems with the IRS and recommends changes that will prevent problems. Publications and Other Resources You may also obtain help from the following IRS publications and other resources: Publication 4220 PDF, Applying for 501(c)(3) Tax-Exempt Status Publication 4221-PC PDF, Compliance Guide for 501(c)(3) Public Charities Publication 4221-PF PDF, Compliance Guide for 501(c)(3) Private Foundations Publication 4221-NC PDF, Compliance Guide for Tax-Exempt Organizations (Other than 501(c)(3) Public Charities and Private Foundations) Publication 557 PDF, Tax-Exempt Status for Your Organization Publication 598 PDF, Tax on Unrelated Business Income of Exempt Organizations