What this notice is about We denied your request for an adoption taxpayer identification number (ATIN). What you need to know We reviewed your Form W-7A, Application for Taxpayer Identification Number for Pending U.S. Adoptions PDF, and you don’t qualify for an ATIN. If your situation changes, you may reapply for an ATIN. You may want to Call the IRS at 737-800-5511 or 267-941-1000 (for international calls) if you have additional questions. Frequently asked questions How long is an ATIN extension? Extensions are valid for one additional year and may be requested before your assigned ATIN expires. For more information, see Adoption Taxpayer Identification Number. Reference tools Publication 1, Your Rights as a Taxpayer Notice Topic 651 Notice Topic 653 Full list of tax forms and instructions Need help? You can authorize someone to represent you before the IRS or inspect and/or receive confidential tax information. You may be eligible for free help from the Taxpayer Advocate Service (TAS). See if you qualify for help from a Low Income Taxpayer Clinic. You can request a copy of your notice or letter in Braille or large print. If you can’t find what you need online, call the telephone number on your notice or letter.