What this notice is about We couldn't locate the return you said was previously filed. What you need to do Read the notice carefully to determine the required form we need. If you have a copy of the original return, please re-sign it and send it to us. If you don't have a copy of the return, visit Forms & Instructions to get a new form or call 800-829-3676. Fill out the Contact Information section of the notice, detach it and send it to us with your re-signed copy or completed form so we receive it by the due date on the notice. You may want to Review your records to ensure we didn't send the original return back because of missing signatures or missing information. Frequently asked questions What happens if I don't respond by the due date? We may consider your return delinquent and begin collection enforcement to secure the return. Who do I call for assistance? For assistance with your business return, call 800-829-0115 or for assistance with Form 990-T, Exempt Organization Business Income Tax Return, call 877-829-5500. Reference tools Publication 1, Your Rights as a Taxpayer Full list of tax forms and instructions 도움이 필요합니까? 귀하를 대신하여 IRS와 연락하도록 타인에게 권한을 부여할 수 있습니다.(영어). 저소득 납세자 클리닉(영어)으로부터 도움을 받을 수 있는지 알아보십시오. 온라인에서 필요한 정보를 찾을 수 없다면, 통지서 및 서신의 상단에 있는 IRS 번호로 전화하십시오. 서신이나 통지서를 받지 않았다면, 전화 상담을 이용하십시오. 본인 스스로 과징금 문제를 해결할 수 없다면 IRS내 독립기관인 납세자 보호 서비스에 연락하십시오.