Individual Taxpayer Identification Numbers (ITINs) are issued by the Internal Revenue Service (IRS) to individuals who are not eligible for Social Security numbers but need to file tax returns or claim dependents on tax returns. If you have misplaced your ITIN or don’t know what it is, don’t worry. In this article, we will guide you through the process of retrieving your ITIN number.

It is important to have your ITIN number as it allows you to legally file your tax returns and claim any tax credits or deductions you may be eligible for. So without further ado, let’s dive into the guide.

How to Retrieve Your ITIN Number: A Step-by-Step Guide for Taxpayers

Here is a step-by-step guide on how to retrieve your ITIN number:

Step 1: Check your previous tax returns, W-2 forms, and other tax-related documents

Your ITIN number can be found on your previous tax returns, as well as on any other tax-related documents such as your W-2 forms. Check through these documents to see if your ITIN number is listed.

Step 2: Contact the Social Security Administration (SSA)

If you have lost your ITIN and don’t have access to any of your tax-related documents, you can contact the SSA to see if they have your number on file. The SSA will only have your ITIN number if you have used it for certain tax-related purposes, such as applying for a job or opening a bank account. You can contact the SSA toll-free at 800-772-1213.

Step 3: Call the IRS toll-free number

If you can’t find your ITIN number through Step 1 or Step 2, contact the IRS at 800-829-1040. They will be able to verify your identity and provide you with your ITIN.

Step 4: Submit Form W-7

If you still can’t find your ITIN number, you will need to submit Form W-7 to the IRS. This form is used to apply for an ITIN or to renew an ITIN that has expired. You can download the form from the IRS website or request a hard copy by calling the IRS toll-free at 800-829-3676.

The Ultimate Checklist for Finding Your Lost ITIN Number

To help you find your ITIN number, make sure to check all of the following places:

  • Tax returns from the previous years
  • W-2 forms from the previous years
  • Letters or notices received from the IRS
  • Bank or investment statements
  • Loan or mortgage documents
  • Employment records
  • Insurance policies

Additionally, it is important to keep your ITIN number safe and easily accessible. Here are some tips to help you do that:

  • Store your ITIN number in a safe place, such as a locked cabinet or a password-protected digital file
  • Make a note of your ITIN number in your phone or address book for easy access
  • Avoid sharing your ITIN number with others unless absolutely necessary
  • Be cautious of phishing emails or calls that ask for your ITIN number

What to Do When You Can’t Find Your ITIN Number: Expert Tips and Advice

If you are still having trouble finding your ITIN number, there are some expert tips and advice that can help:

Insights from tax experts and professionals

Tax professionals, such as accountants or tax lawyers, can help you locate your ITIN number and provide advice on how to keep it safe in the future. Additionally, the IRS has Taxpayer Assistance Centers located throughout the country where you can speak with an IRS employee in-person.

Common scenarios where ITIN numbers get lost and how to handle them

Some common scenarios where ITIN numbers are lost include when the individual changes their name due to marriage or divorce, or when the IRS deactivates an ITIN due to inactivity. In these cases, you will need to submit a new application for an ITIN or renew your expired ITIN.

Efficient Methods for Recovering Your ITIN Number on Your Own

There are online tools and resources available that can help you recover your ITIN number on your own, such as the IRS’s online ITIN Assistant. However, it is important to avoid common mistakes such as submitting incorrect information or failing to submit all necessary documentation.

Navigating the IRS Website: How to Retrieve Your ITIN Number

If you need to retrieve your ITIN number, the IRS website is a great resource to use. Here is a step-by-step guide on how to do it:

  1. Visit the IRS website at
  2. Click “Individuals” in the top menu bar
  3. Click “Get an ITIN” in the drop-down menu
  4. Scroll down and click “View Your Account Information” under “Managing Your ITIN”
  5. Enter your personal information and click “Continue”
  6. Answer the security questions and click “Submit”
  7. You will now see your ITIN number displayed on the screen

Avoiding Common Pitfalls When Recovering Your Lost ITIN Number: What You Need to Know

When trying to recover a lost ITIN number, there are some common pitfalls to watch out for:

  • Submitting the wrong information
  • Not submitting all necessary documentation
  • Ignoring IRS notices or requests for additional information
  • Sharing your ITIN number with others
  • Being victimized by scams or phishing attempts

To avoid these pitfalls, always double-check your information before submitting anything to the IRS and follow the guidelines provided in the IRS’s instructions for Form W-7.


Retrieving your ITIN number is an important part of filing your tax returns and claiming any tax credits or deductions you may be eligible for. By following the steps outlined in this article, you should be able to easily retrieve your lost ITIN number.

Remember, it is also important to keep your ITIN number safe and secure in the future to avoid the hassle of having to retrieve it again. By following the tips provided in this article, you can ensure that you always have access to your ITIN number when you need it.

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By Happy Sharer

Hi, I'm Happy Sharer and I love sharing interesting and useful knowledge with others. I have a passion for learning and enjoy explaining complex concepts in a simple way.

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