Skip to main content
Northwestern Mutual Northwestern Mutual
Primary Navigation
  • Home
  • About Us
    • About Us Overview
    • Working With an Advisor
    • Our Financial Strength
    • Sustainability and Impact
  • Financial Planning
    • Financial Planning Overview
    • Retirement Planning
      • Retirement Planning Overview
      • Retirement Calculator Beach chair icon
    • College Savings Plans
    • Private Wealth Management
    • Estate Planning
    • Long-Term Care
    • Business Services
  • Insurance
    • Insurance Overview
    • Life Insurance
      • Life Insurance Overview
      • Whole Life Insurance
      • Universal Life Insurance
      • Variable Universal Life Insurance
      • Term Life Insurance
      • Life Insurance Calculator Shield icon
    • Disability Insurance
      • Disability Insurance Overview
      • Disability Insurance  For Individuals
      • Disability Insurance  For Doctors and Dentists
      • Disability Insurance Calculator Money Parachute icon
    • Long-Term Care
    • Income Annuities
  • Investments
    • Investments Overview
    • Brokerage Accounts & Services
    • Private Wealth Management
    • Investment Advisory Services
    • Fixed & Variable Annuities
    • Market Commentary
  • Life & Money
    • Life & Money Overview
    • Educational Resources About Financial Planning
    • Educational Resources About Investing
    • Educational Resources About Insurance
    • Educational Resources About Everyday Money
    • Educational Resources About Family & Work
    • Market Commentary
    • Podcast
Utility Navigation
  • Find a Financial Advisor
  • Claims
  • Life & Money
  • Financial Planning
  • Your Taxes

What Is Tax Identity Theft? And How to Prevent It


  • Northwestern Mutual
  • Jun 25, 2024
man reading letter at home
Photo credit: Getty Images
share Share on Facebook Share on X Share on LinkedIn Share via Email

Key takeaways

  • Learn the signs of tax identify theft and what you’ll need to do if it happens to you.

  • Though it can be difficult to prevent tax identity theft, there are some things you can do.

  • If you suspect you’re a victim, be proactive about remedying the situation.

Not only is filing your taxes the opposite of fun, but the annual, unavoidable task can also leave you open to a specific type of fraud: tax identity theft.

What is tax identity theft? Tax identity theft occurs when someone steals your Social Security Number (SSN) and uses it to file a fraudulent return in your name. The thief is after your refund (assuming that you’re entitled to one).

Though it can be difficult to take preventative measures to avoid tax identity theft, there are some steps you can take. Here’s what you should know about tax identity theft.

What are the signs of tax identity theft?

If you’ve been the victim of tax identify theft, the most common ways you’ll find out include:

  • Receiving a notice in the mail from the IRS informing you that it received a suspicious tax return using your SSN.
  • The IRS rejecting your e-filed tax return because a duplicate return has already been filed using your SSN.

If either situation happens to you, or you simply suspect something is amiss, the most important thing you can do is be proactive and work with the IRS to resolve the situation. Here are the steps to take.

If you hear from the IRS

The IRS will contact you by mail if it receives a suspicious return on your behalf, or if you file a paper return and the agency already has one on file for you. If this happens, respond to the notice immediately and follow the agency’s instructions, which will vary based on your unique tax situation. For example, the IRS may ask you to fill out Letter 4883C or Letter 5071C, which are both used to verify your identity. You may also be asked to fill out Form 14039, which is an identity theft affidavit that documents the incident.

If tax identity theft has occurred, you will likely have to refile your tax return by paper. Send in all requested forms using certified mail with “return receipt requested” to ensure the documents are received.

Remember that the IRS only initiates contact with taxpayers by mail. If you receive an out-of-the-blue phone call or email from someone claiming to be from the IRS, do not respond to or open the message.

Left Dotted Pattern
Right Dotted Pattern

Want more? Get financial tips, tools, and more with our monthly newsletter.

If your electronic return is rejected

While it has become very common to file your taxes electronically, if you think your return is being rejected because someone has tried to file in your place, it is your responsibility to get in touch with the IRS.

Before contacting the IRS, it’s a good idea to verify that you’ve correctly entered your SSN and that someone who can claim you as a dependent hasn’t tried to use your SSN on his or her return. Once you have verified those two things, you’ll need to file a paper return along with the above mentioned Form 14039, which will alert the IRS that you believe you’ve been a victim of tax identity theft.

What to expect next

Once the IRS has been made aware of your case and has concluded its investigation (which can take about four months), the agency will place an identity theft indicator on your account. It may also issue you an Identity Protection (IP) PIN—a six-digit number that serves as an additional security precaution. You’ll need this number to file all returns moving forward, and you’ll receive a new IP PIN every year (typically in December).

Social Security is an important part of your financial plan.

Your financial advisor can show you how Social Security will work to reinforce your retirement savings. And they’ll show you how it can help you live the life you want in retirement.

Let's get started

Additional steps to take

Once your identity has been compromised, there’s no telling how far a criminal will go. So after you’ve taken all the necessary steps with the IRS, check in with your state’s tax department to determine if there’s been any suspicious activity regarding your state return.

In addition, the Federal Trade Commission recommends that you contact Equifax, Experian or TransUnion (the credit bureau you contact is obligated to inform the other two) and ask that a fraud alert be placed on your credit records. It may also be a good idea to freeze your credit, if you haven’t done that already.

You should also consider alerting the financial services institutions you do business with of the identity theft you’ve experienced and determine whether there are additional security precautions you can take to further protect your financial assets.

How to prevent tax identity theft

As the saying goes, the best offense is a good defense. While it’s difficult to stop a thief from filing a false return, there are some steps you can take to make it more difficult for the criminal.

  • File your tax return as soon as possible. Once you file, a criminal is unable to file in your name.
  • Set your withholding so that you don’t have a big refund coming your way. While that’s generally smart tax strategy, it also prevents a tax identity thief from getting what he or she is after—your refund.
  • When you are due a tax refund, consider selecting to receive it electronically into your bank account, rather than choosing to receive a check in the mail that could be lost or stolen—along with your personal information that accompanies the check.

Create strong passwords and vary them for all of your online accounts. And you should be judicious about when you share personal information (like your Social Security number). This will make it more difficult for someone to steal your personal information.

Left Dotted Pattern
Right Dotted Pattern

Want more? Get financial tips, tools, and more with our monthly newsletter.

Related Articles

article
Smart phone over a laptop

What to Do If Your Identity Has Been Stolen

Learn more
article
woman-online-protecting-digital-privacy

4 Best Practices for Protecting Your Digital Privacy

Learn more
article
woman at home desk filing taxes early

6 Reasons to File Your Taxes Early

Learn more

Find What You're Looking for at Northwestern Mutual

Northwestern Mutual General Disclaimer

Northwestern Mutual is the marketing name for The Northwestern Mutual Life Insurance Company and its subsidiaries. Life and disability insurance, annuities, and life insurance with longterm care benefits are issued by The Northwestern Mutual Life Insurance Company, Milwaukee, WI (NM). Longterm care insurance is issued by Northwestern Long Term Care Insurance Company, Milwaukee, WI, (NLTC) a subsidiary of NM. Investment brokerage services are offered through Northwestern Mutual Investment Services, LLC (NMIS) a subsidiary of NM, brokerdealer, registered investment advisor, and member FINRA and SIPC. Investment advisory and trust services are offered through Northwestern Mutual Wealth Management Company (NMWMC), Milwaukee, WI, a subsidiary of NM and a federal savings bank. Products and services referenced are offered and sold only by appropriately appointed and licensed entities and financial advisors and professionals. Not all products and services are available in all states. Not all Northwestern Mutual representatives are advisors. Only those representatives with Advisor in their title or who otherwise disclose their status as an advisor of NMWMC are credentialed as NMWMC representatives to provide investment advisory services.

Northwestern Mutual Northwestern Mutual

Footer Navigation

  • About Us
  • Newsroom
  • Careers
  • Information Protection
  • Business Services
  • Podcast
  • Contact Us
  • FAQs
  • Legal Notice
  • Sitemap
  • Privacy Notices

Connect with us

  • Facebook iconConnect with us on Facebook
  • X iconFollow Northwestern Mutual on X
  • LinkedIn iconVisit Northwestern Mutual on LinkedIn
  • Instagram iconFollow Northwestern Mutual on Instagram
  • YouTube iconConnect with Northwestern Mutual on YouTube

Over 8,000+ Financial Advisors and Professionals Nationwide*

Find an Advisor

Footer Copyright

*Based on Northwestern Mutual internal data, not applicable exclusively to disability insurance products.

Copyright © 2025 The Northwestern Mutual Life Insurance Company, Milwaukee, WI. All Rights Reserved. Northwestern Mutual is the marketing name for The Northwestern Mutual Life Insurance Company and its subsidiaries.