What this notice is about Your tax return shows a different name and/or ID number from the information we have for your account. Please provide the requested information. What you need to do Review your identifying information shown on this notice and compare it to your most recent social security card or taxpayer ID card. Complete the CP54 response form to explain the discrepancies. Include copies of documents to substantiate your name and identifying number. You may want to Contact the Social Security Administration (SSA) to update your records if you have an SSN and any of the following occurred: you recently married and are using your spouse’s last name and you did not contact SSA to update your records, you legally changed your name without contacting SSA to update your records, or your social security number and/or name are different from when you received social security number. Contact the IRS, ITIN Operation, to update your records if you have an ITIN and any of the following occurred: you recently married and are using your spouse’s last name and did not contact IRS to update your records, you legally changed your name without contacting the IRS to update your records, or your ITIN and/or name are different from when you received your CP565, ITIN Assignment Letter. Frequently asked questions I sent you my information. Now what happens? Once we receive your response form and verify the information you provided, we will update our records accordingly. If you are due a refund and you haven't heard from us after 6 weeks, you can check the status of your refund on “Where’s My Refund?”. Tips for next year Make sure you file using your name and taxpayer ID number (TIN) that was updated by SSA or IRS. Reference Tools Publication 1, Your Rights as a Taxpayer Publication 1915, Understanding Your IRS Individual Taxpayer Identification Number (ITIN) 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 알아보세요. 온라인에서 필요한 것을 찾을 수 없다면, 안내서 및 서신의 상단에 IRS 번호로 전화하세요.