What this letter is about Letter 6167C tells you we need to verify your identity to process a federal income tax return filed with your name and taxpayer identification number. What you need to do Call the Taxpayer Assistance Center toll-free at the number on your letter. If you are out of the country, mail your response with the requested information within 30 days. Bring the following to your appointment: The 6167C letter. The income tax return referenced in the letter (Form 1040, 1040A, 1040-EZ,1040-PR, 1040-NR, etc.). Note: A Form W-2 or Form 1099 is not a tax return. A previous year’s income tax return, other than the year in the letter (Form 1040, 1040A, 1040-EZ,1040-PR, 1040-NR, etc.). Note: A Form W-2 or Form 1099 is not a tax return. Supporting documents that you filed for each year’s income tax return (Form W-2, Form 1099, Schedule C or F, etc.). Bring the following identity verification documents to your appointment: A valid U.S. federal or state government-issued picture identification, such as a driver’s license, state ID, or passport. At least ONE of the following forms of identification: Current U.S. federal or state government-issued identification that is different from the first document above; U.S. Social Security card; mortgage statement with current address; Lease agreement for a house or apartment with current address; Car title; Voter registration card (not the voter registration application); Utility bill with current address; Birth certificate (the IRS no longer accepts Puerto Rican birth certificates issued before July 1, 2010); Current school records. You may want to Review this notice with your tax preparer. Contact Taxpayer Advocate Service (TAS) if you’re experiencing an economic hardship or need help in resolving problems. You can reach TAS at 877-777-4778 or TTY/TTD 800-829-4059. What if you don't respond We may not be able to process your return, issue refunds, or apply overpayments to next year’s estimated tax. Frequently asked questions What happens after my appointment or after I have mailed the documentation? Once we verify your identity and confirm you submitted the tax return, we’ll continue processing your return. It will take about nine weeks to process. What if I didn’t file the tax return? Someone else may have filed it for you without your consent. Send us a completed and signed Form 14039, Identity Theft Affidavit PDF. You may want to read our identity theft resources page while we review your Form 14039. Reference tools Publication 1, Your Rights as a Taxpayer Publication 17, Your Federal Income Tax 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。