What this notice is about We credited payments and/or other credits to your tax account for the form and tax period shown on your notice. However, we haven't received your tax return. What you need to do If you are required to file this tax return, please file today. Send your signed tax return to the address shown on the top of this notice. Frequently asked questions What if I have already filed this return? Please send a newly signed copy to the address shown on the top of your notice. Due to processing delays for 2019 and 2020 tax returns, the issuance of CP80 and CP080 (Unfiled Tax Return – Credit on Account) notices has been suspended. If you received a notice for your 2019 return and you filed timely, please refile the return. If you received a notice for your 2020 return DO NOT refile. What if I want the credit transferred to another tax form, tax period or tax identification number? Please call us at 800-829-8374 to give us details of the account to which the credit should be transferred. Reference Tools Publication 1, Your Taxpayer Rights Publication 5027, Identity Theft Information for TaxpayersPDF Full list of tax forms and instructions 도움이 필요하다면 귀하를 대신하여 IRS와 연락하도록 누군가에게 권한을 부여할 수 있습니다.(영어). 저소득 납세자 클리닉(LITC)(영어)으로부터 도움을 받을 수 있는지 알아보십시오. 온라인에서 필요한 것을 찾을 수 없다면, 통지서서 및 서신의 상단에 IRS 번호로 전화하십시오