What this letter is about This letter is part of our ongoing effort to protect your tax account information. What you need to do Review the letter and check the boxes that describe your situation. If access was authorized and should continue, you can call, write, or fax to let us know If you need us to make account access changes, return the response pages by mail or fax within 30 days. If you prefer to fax, fax your information to the fax number in the notice using either a fax machine or an online fax service. Protect yourself when sending digital data by understanding the fax service’s privacy and security policies. We’ll consider your account verified when we receive your response. If you checked the “I did not authorize….” box Return the letter to us. We’ll contact you and let you know if you need to take any additional action. Frequently asked questions Why did I receive this letter? We’re reviewing current third-party authorizations. This letter is one of the ways to verify your authorization of third-party access. Has my information been compromised? This review doesn’t mean your information has been compromised. You would be notified if the IRS or any business or organization believed your information had been compromised. If I don't recognize the third party listed, should I check the “I did not authorize” box on the letter? You may want to call your current tax professional because the name may be affiliated with your tax professional. If they’re not affiliated, check the box and return the letter to us. If I don't have a tax professional and I don't recognize the third party listed, what should I do? Check the “I did not authorize” box and return the letter to us. Helpful information Third Party Authorization Purpose Herramientas de referencia Publicación 1 (SP), Derechos del Contribuyente Lista completa de formularios y publicaciones tributarios (en inglés) How to get help Call the 1-800, 1-866, or 1-888 number listed on the top right corner of your letter.