What this notice is about We have important information about your child's Adoption Taxpayer Identification Number (ATIN). We approved your request for a one-year extension. What you need to do Complete Form 15101, Provide Social Security Number (SSN) for Adoptive Child PDF, included with your notice when you receive an SSN for your child. Detach notice stub, mail it with Form 15101 in the envelope provided. If you prefer, you can fax it 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. You may want to Call us at the number listed in your notice. See additional information on Adoption Taxpayer Identification Number. Frequently asked questions How long is an ATIN extension valid? An ATIN extension is valid for 2 years. If you don't have an SSN for your child, you can request a 1 year extension. For more information, see instructions for completing a Form W-7 A, Application for IRS Adoptions for IRS Individual Taxpayer Identification Number. Reference tools Publication 1, Your Rights as a Taxpayer Full list of tax forms and instructions 是否需要帮助？ 您可以授权他人（英文）代表您联系国税局。 查看一下您是否有资格获得低收入纳税人诊所的帮助（英文）。 倘若您在网上未能找到所需信息，请拨打通知或信函顶部的国税局电话号码。倘若您未收到信函或通知，请使用电话协助。 如果您不能自行解决罚款问题，请联系纳税人权益服务处，这是国税局内部的一个独立机构。
