You may wonder how to confirm its progress if you recently submitted an Individual Taxpayer Identification Number (ITIN) application or renewal. An ITIN is a nine-digit taxpayer identification number issued by the Internal Revenue Service (IRS) for people who are not eligible for a Social Security Number (SSN) but still need to file a federal tax return. It is used strictly for tax reporting purposes and does not provide work authorization or change immigration status.

Understanding how to check your ITIN application status is essential because delays or errors can affect your ability to file taxes, claim credits, or receive a refund. Many taxpayers, whether students, spouses, dependents, or nonresident investors, rely on an ITIN to comply with U.S. tax laws. Monitoring your ITIN ensures your tax records remain accurate and helps avoid penalties or lost tax benefits.

While the IRS does not currently offer a dedicated online portal for real-time ITIN tracking, several reliable ways exist to confirm whether your number has been assigned or if additional documentation is required. This guide explains the process, including timelines, IRS notices, renewal requirements, and professional options such as acceptance agents. By the end, you will know precisely how to check your ITIN status and what actions to take if problems arise.

What Is an ITIN, and Who Needs One?

An Individual Taxpayer Identification Number (ITIN) is a nine-digit number created by the Internal Revenue Service (IRS) for people who must meet U.S. tax obligations but do not qualify for a Social Security Number (SSN). The ITIN helps the IRS process federal tax returns, maintain accurate tax records, and ensure taxpayers comply with U.S. tax laws properly. It is strictly for tax reporting purposes and cannot be used for employment, immigration, or Social Security benefits.

Who Needs an ITIN

  • Nonresident aliens who have U.S. income and must file a tax return.
  • Spouses or dependents of U.S. citizens or residents who are not eligible for an SSN.
  • International students, professors, and researchers must report wages or other income earned in the United States.
  • Foreign investors or property owners who must pay U.S. taxes on rental income, dividends, or other payments.

Who Does Not Need an ITIN

  • U.S. citizens or lawful permanent residents who qualify for an SSN.
  • Anyone who is already eligible for a Social Security Number.
  • People who are not required to file taxes or submit a return in the U.S.

For many individuals living abroad, the ITIN is the only way to meet U.S. filing requirements, ensuring they can claim refunds, credits, or treaty benefits when allowed. Whether you are a student, a spouse, or a dependent, having an ITIN is often the first step to remaining in good standing with the IRS.

Understanding ITIN Processing Timelines

The IRS follows set timelines when reviewing and approving an ITIN application. Knowing these timeframes helps taxpayers plan, avoid unnecessary stress, and respond appropriately if delays occur. Standard processing takes about seven weeks from the IRS receiving your mail application. However, the season, location, and submission accuracy can affect how quickly your identification number is issued.

Standard Processing Times

  • Regular applications: About 7 weeks for most filers.
  • Peak tax season (January–April): 9 to 11 weeks due to the volume of tax returns.
  • International or abroad filers: 9 to 11 weeks because of additional handling.

Common Causes of Delays

  • Submitting incomplete forms or missing proof of identity
  • Using expired or unclear documentation
  • Errors when completing Form W-7 or attaching your tax return
  • IRS backlogs during high-volume periods

When to Contact the IRS

If you have not received a notice after the expected timeframe, it is essential to contact the IRS directly. You must provide details such as your full name, the assignment date, if known, and the submission method. This ensures your request can be reviewed quickly and helps you avoid filing late or missing out on a refund.

How to Check Your ITIN Application Status

Tracking your ITIN application status is critical for anyone waiting to receive credit, process a refund, or confirm that their tax return has been filed correctly. While the IRS does not provide a dedicated online tracker, several official ways exist to verify whether your ITIN has been assigned or if further action is required.

Phone Contact (Most Reliable Method)

Calling the IRS is the fastest and most accurate way to check your status.

  • Domestic callers: Dial 800-829-1040.
  • International callers: Dial 267-941-1000 (not toll-free).
  • TTY/TDD users: Dial 800-829-4059 for assistance.

Best practice: Call early in the morning or later in the afternoon to reduce wait times. When you call, an IRS representative will verify your identity before giving information on your ITIN application.

Mail Correspondence

The IRS communicates most ITIN updates through letters sent to the mailing address listed on your Form W-7.

  • CP565 Notice: confirms that your ITIN has been approved and issued.
  • CP566 Notice: requests additional information or documentation.
  • CP567 Notice: explains why your application was rejected.

Keep all correspondence in a safe place for future tax reporting purposes.

IRS Online Account (After ITIN Assignment)

Although you cannot check your ITIN application status online, once your ITIN is approved, you can create an IRS Online Account. This allows you to:

  • View tax records, including prior tax returns and wages paid.
  • Monitor taxes withheld and past payments.
  • Review any balance due or pending credits.

This service is only available after your ITIN has been issued.

Information You’ll Need When Contacting the IRS

Before calling or submitting a request by mail, make sure you have:

  • Your full legal name (exactly as listed on your form)
  • Your date of birth
  • The mailing address used on the application
  • The date you submitted your ITIN package
  • The submission method (e.g., by mail, through a Taxpayer Assistance Center, or via an acceptance agent)

This information ensures a smoother verification process and helps the IRS provide faster answers.

Common ITIN Status Notices Explained

Once you apply for an Individual Taxpayer Identification Number, the IRS communicates updates through official notices sent by mail. Understanding these letters is important, since they determine whether your ITIN has been successfully assigned, needs additional documentation, or has been rejected. Each notice includes instructions you must review carefully to comply with U.S. tax laws.

CP565 Notice – ITIN Assignment

This notice confirms that your ITIN has been approved and assigned.

  • What it means: Your application was successful, and you can now use the ITIN for all U.S. tax reporting purposes.
  • What to do: Keep the notice safe, since you may need to refer to the assignment date when filing a future tax return.

CP566 Notice – More Information Needed

This notice indicates the IRS could not complete processing without additional details.

  • Why you might receive it: missing or unclear documents, expired IDs, or incomplete forms.
  • What to do: Respond promptly with the requested information, ensuring that your proof of identity and foreign status are accurate and current. Delays in providing documents may result in further setbacks.

CP567 Notice – Application Rejected

This notice means your ITIN application was not accepted. Common reasons include being eligible for a Social Security Number instead, submitting lost, expired, or invalid documentation, or failing to comply with earlier requests for information.

Next steps involve preparing a new application, including all required documents, and considering using acceptance agents to reduce the risk of rejection. Each letter provides specific IRS instructions, and it is essential to follow them exactly. Failing to respond may delay your refund, prevent you from claiming credits, or create future filing complications.

ITIN Renewal Requirements

An ITIN does not last indefinitely. According to the Internal Revenue Service (IRS), an ITIN will expire if not used on a federal tax return for three consecutive years. When this happens, taxpayers must renew their number before submitting a new tax return. Failing to renew may delay processing, reduce a refund, or prevent you from claiming valuable tax credits.

When ITINs Expire

  • If your ITIN has not appeared on a tax return for three consecutive years, it becomes invalid on December 31 of the third year.
  • Expired ITINs cannot be used for tax reporting purposes, affecting your ability to comply with IRS requirements.

Renewal Process

To renew an ITIN, taxpayers should:

  1. Complete Form W-7 and check the box for “Renew an existing ITIN.”
  2. Attach a current tax return unless you qualify for an exception.
  3. Provide original documents or certified copies as proof of identity and foreign status.
  4. Submit the renewal by mail, at a Taxpayer Assistance Center, or through acceptance agents.

For complete instructions, see the IRS’s official guide on how to renew an ITIN.

Consequences of Filing With an Expired ITIN

  • Delayed processing of your return.
  • Inability to receive credit for certain tax benefits, such as the Child Tax Credit.
  • Potential payment errors or penalties for noncompliance.

By keeping your ITIN current, you can avoid interruptions in filing, protect your eligibility for credits, and maintain accurate tax records with the IRS.

Step-by-Step ITIN Application Guide

Applying for an Individual Taxpayer Identification Number (ITIN) requires careful preparation. The Internal Revenue Service (IRS) reviews every form and document closely, so accuracy is critical. This guide explains how to determine eligibility, gather required proof, and submit your application correctly to avoid delays or rejections.

Determine Eligibility

Before you begin, confirm that you:

  • Must file a federal tax return or meet another tax-related requirement.
  • Are not eligible for a Social Security Number (SSN).
  • Have a valid reason connected to U.S. tax laws, such as claiming a dependent, reporting income, or receiving treaty benefits.

Gather Required Documents

The IRS requires supporting documentation to establish your identity and foreign status.

Primary Document (stand-alone):

  • A valid foreign passport

Secondary Documents (two required if no passport):

  • National identification card with photo
  • Birth certificate
  • Driver’s license (U.S. or foreign)
  • U.S. state identification card
  • A visa issued by the U.S. State Department
  • School or medical records (for children and students)

These documents prove your identity and connection to a foreign country. For the most up-to-date list of acceptable documents, consult the official IRS Instructions for Form W-7.

Choose Application Method

You can submit your ITIN application in three main ways:

  1. By Mail: Send Form W-7, your tax return, and original or certified documents to the IRS ITIN Operations office.
  2. In Person: Schedule an appointment at a Taxpayer Assistance Center to present your documents directly.
  3. Through Acceptance Agents (CAA): Certified professionals who can authenticate your documents, help you prepare the application, and return originals immediately.

Submit and Track Your Application

After completing your form and collecting documents:

  1. Double-check all instructions to make sure every field is filled.
  2. Attach your tax return unless you qualify for an exception.
  3. Keep copies of all correspondence and documents in case they are lost.
  4. Wait for a notice from the IRS confirming your ITIN has been assigned.

Once submitted, processing typically takes 7 to 11 weeks. If delays occur, you may need to contact the IRS with your application date and details to confirm your ITIN application status. Can I continue into Certified Acceptance Agent (CAA) Services next, or pause to generate a keyword usage table showing which required terms have been naturally integrated so far?

Certified Acceptance Agent (CAA) Services

The IRS authorizes certain professionals, such as Certified Acceptance Agents (CAAs), to assist taxpayers with the ITIN process. These acceptance agents act as intermediaries between applicants and the IRS, ensuring that documents are appropriately reviewed and applications are submitted correctly. Working with a CAA can reduce the risk of errors and help taxpayers comply with U.S. tax laws more efficiently.

What CAAs Do

  • Authenticate identity and foreign status documents so you do not need to mail originals.
  • Guide you through completing the ITIN form and ensuring that supporting proof is accurate.
  • Help students, spouses, and other applicants prepare their documentation packages.
  • Provide letters or confirmations once the verification process is successful.

Benefits of Using a CAA

  • Reduced risk of rejection: CAAs review your documents and application for accuracy.
  • Faster processing: Applications submitted through CAAs are less likely to require additional IRS follow-up.
  • Security: Original identification documents are returned immediately, protecting against loss.
  • Convenience: CAAs offer services in the U.S. and abroad, making them accessible to international applicants.

How to Find or Become a CAA

  • To find an agent, visit the official IRS website and search the Acceptance Agent directory.
  • Professionals, such as CPAs or attorneys, can apply to become CAAs by meeting IRS requirements, completing training, and submitting a request for approval.

By working with a CAA, taxpayers can streamline the ITIN application process, ensure compliance with instructions, and feel confident that their information has been handled securely.

Troubleshooting and Special Cases

Even with careful preparation, issues can arise during the ITIN process. Understanding common problems and how to resolve them helps taxpayers avoid unnecessary delays and maintain compliance with IRS tax laws.

Common Issues

  • Delays in processing: Applications may take longer if the IRS has a backlog or if documentation is unclear.
  • Duplicate or lost applications: Submitting more than once can confuse records, and documents sent by mail may occasionally be misplaced.
  • Mismatched information: Differences between names, dates, or numbers on submitted forms can trigger review requests.
  • Expired ITINs: Filing with an expired number may prevent you from claiming credits or receiving a refund.

Special Cases

  • Students: International students often need ITINs to report wages or claim treaty benefits. Ensure that school or visa documentation is attached as proof.
  • Spouses and dependents: A spouse or child may need an ITIN to qualify for credits on a joint tax return.
  • Applicants abroad: People outside the U.S. may face longer timelines and should consider using acceptance agents to simplify the process.

Checklist to Avoid Rejections

  • Prepare all documents in advance and verify they are current.
  • Fill out every line of Form W-7 using IRS instructions.
  • Attach a valid tax return unless you meet an exception.
  • Keep copies of every letter and piece of correspondence you receive.
  • Contact the IRS promptly if you are notified of errors or missing information.

By following these steps, taxpayers can minimize mistakes, ensure successful verification, and stay on track with their filing obligations.

Frequently Asked Questions (FAQs)

Can I check my ITIN application status online?

No, the IRS does not offer an online system for checking the progress of an ITIN application. Instead, you must call the IRS directly, monitor your mail for official notices, or consult an authorized acceptance agent. Once your ITIN has been assigned, you can create an IRS Online Account to review tax records and past returns.

How long does it take to receive an Individual Taxpayer Identification Number?

Yes, the processing timeline for an Individual Taxpayer Identification Number depends on when and how you apply. Standard applications take about seven weeks, while those submitted during peak tax season or from abroad may take nine to eleven weeks. Incomplete documentation or errors may extend processing time, so preparing your application package carefully before submission is essential.

Do I need to renew my ITIN every year?

No, an ITIN does not require annual renewal. It only expires if not used on a federal tax return for three consecutive years. Once expired, you must submit a renewal application before filing again. Using an expired ITIN may delay your return, prevent you from claiming certain credits, or result in processing issues with the IRS.

What happens if my ITIN application is rejected?

If your ITIN application is rejected, the IRS will send you a notice explaining why. Common causes include missing documents, ineligibility because you qualify for a Social Security Number (SSN), or incomplete forms. To resolve the issue, correct the errors, gather proper documentation, and resubmit. Many applicants also benefit from working with a Certified Acceptance Agent.

Can I use my ITIN for purposes other than filing a tax return?

No, an ITIN is issued only for tax reporting purposes. It does not authorize you to work in the United States, qualify you for Social Security benefits, or serve as general identification. Its sole function is to help the IRS track compliance and connect you with your tax obligations. Always use your ITIN only when required for tax matters.

How is an ITIN different from a Social Security Number (SSN)?

Yes, an ITIN is a taxpayer identification number issued strictly for individuals who cannot obtain a Social Security Number (SSN). While both numbers are nine digits, an ITIN is only used for filing tax returns and other IRS-related purposes. Unlike an SSN, it does not provide work authorization or eligibility for federal benefits. Its role is limited to tax compliance.

What information do I need when contacting the IRS about my taxpayer identification number (ITIN)?

When calling the IRS to check your taxpayer identification number (ITIN) status, provide your full legal name, date of birth, mailing address, and the date you submitted your application. You should also note whether you filed by mail, through a Taxpayer Assistance Center, or through an acceptance agent. Providing these details allows the IRS to locate and confirm your status quickly.