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 Taxpayers PDF Full list of tax forms and instructions 需要協助嗎？ 您可以授權某人（英文）代表您向國稅局聯絡。 請查看您是否符合從低收入納稅人協助中心（英文）獲得協助的資格。 如果您無法在線上找到您需要的資訊，請撥打您的通知或信件上方的國稅局號碼。如果您未收到信件或通知，請使用電話協助。 如果您無法自行解決罰款，請聯絡 IRS 內部的獨立組織——納稅人權益維護服務處。
