What Happens When Your ITIN Expires?
Updated June 2026
Quick answer
When your ITIN expires, the IRS still accepts your tax return, but it holds your refund and disallows valuable credits, including the Child Tax Credit and the American Opportunity Tax Credit, until you renew. You renew by filing Form W-7 marked as a renewal with valid ID documents. Renewal usually takes about 7 to 11 weeks, so the earlier you act, the sooner your refund and credits are restored.
An expired ITIN rarely causes a dramatic error message. Instead, it quietly costs you money: a delayed refund, blocked tax credits, and weeks of extra IRS processing time. This guide focuses on exactly what happens when your ITIN expires and walks you through how to renew before the consequences pile up. If you want a broader background on the rules first, see our ITIN expiration guide for the full picture.
What Happens If Your ITIN Expires?
The most important thing to understand is that an expired ITIN does not stop you from filing a tax return. The IRS will still accept a return submitted with an expired ITIN. What changes is how that return is treated. The IRS processes it as a return filed with an expired number, which triggers a chain of consequences that all point back to one thing: you lose money or access until you renew.
Your refund is delayed
The IRS holds any refund tied to a return with an expired ITIN until the ITIN is renewed. Because renewal itself can take several weeks, a refund you expected in spring can slip into the summer or later.
Valuable credits are disallowed
Credits that require a valid ITIN, including the Child Tax Credit, the Credit for Other Dependents, and the American Opportunity Tax Credit, may be disallowed for that tax year until you renew. For families, that can mean thousands of dollars left on the table.
You receive IRS notices
The IRS sends Notice CP48 to tell you an ITIN you have used needs to be renewed. If you submit a renewal that is incomplete or rejected, you receive Notice CP567 explaining why your application was turned down.
Processing slows across the board
Beyond refunds and credits, an expired ITIN can stall the entire return, delaying any matching the IRS does and pushing back resolution of any questions on your account.
When Does an ITIN Expire? The 2026 IRS Rules
The core rule is straightforward: an ITIN expires if it is not used on a federal tax return for three consecutive years. So any ITIN not used on a return for tax years 2022, 2023, and 2024 expired on December 31, 2025. If someone claims you as a dependent and lists your ITIN on their federal return, that counts as use and resets the three-year clock for you.
Older ITINs were also retired in stages under the PATH Act based on the middle digits of the number. Those middle-digit schedules have largely worked through the backlog, so in 2026 the main reason an ITIN expires is simple non-use over three consecutive years. Importantly, there is no single annual ITIN renewal deadline you have to hit every year. You keep the number alive just by using it on a return at least once every three years, and if it has already expired, you can renew at any point in the year. For a deeper look at the timeline and middle-digit history, see our ITIN expiration guide.
Already expired? Renew before your refund and credits slip away.
Every week you wait pushes your refund and your Child Tax Credit further out. Our step-by-step renewal walkthrough shows you exactly what to file, and our CAA team can handle the whole renewal for you without mailing your original passport to the IRS.
How to Renew an Expired ITIN
Renewing an expired ITIN uses the same form as a first-time application, but you handle it slightly differently. You file Form W-7 and mark it as a renewal rather than a new application. You do not need a brand-new ITIN, and you keep the same nine-digit number once the renewal is approved.
Step 1: Complete Form W-7 as a renewal. Use the current revision of Form W-7 and indicate that you are renewing an existing ITIN. Enter your name and details exactly as they appear on your supporting documents to avoid a CP567 rejection.
Step 2: Attach your tax return when required. Renewal applications generally must be submitted with a U.S. federal tax return unless you qualify for an IRS exception. If you renew while filing your return together, the IRS processes the renewal alongside the return.
Step 3: Provide valid identity documents. Include original documents or certified copies from the issuing agency. Notarized photocopies are usually not accepted.
Step 4: Submit and track. Mail your package to the IRS, apply in person at a Taxpayer Assistance Center, or work through a Certifying Acceptance Agent. For a complete walkthrough of each step, including how to fill out the form, read our detailed guide to renewing an expired ITIN in 2026.
ITIN Renewal Documents Needed
The documents for renewal are the same kind the IRS requires for a new ITIN. A valid, unexpired passport is the simplest option because it proves both identity and foreign status in a single document. Without a passport, you must supply at least two documents from the IRS-approved list.
| Document | Notes |
|---|---|
| Valid passport | Stand-alone document that proves identity and foreign status |
| Form W-7 (marked renewal) | Use the current revision and indicate renewal |
| National ID or birth certificate | Used in combination if you do not submit a passport |
| Foreign driver's license or visa | Additional supporting document from the approved list |
| U.S. federal tax return | Generally required unless you meet an IRS exception |
Because the IRS only accepts originals or certified copies, mailing your passport carries real risk. A Certifying Acceptance Agent can verify your originals and return them to you the same day, which is why many renewers prefer the CAA route.
How Long Does ITIN Renewal Take in 2026?
For most renewals, plan on about 7 to 11 weeks. The IRS generally asks you to allow roughly 7 weeks from the mailing date of Form W-7 outside of peak season. If you renew during the busy January 15 to April 30 filing window, or you are applying from overseas, allow 9 to 11 weeks. At the busiest points of the year, some renewals can take 14 to 16 weeks.
This timeline is exactly why expiry consequences hurt: if your ITIN is expired when you file in April, your refund and credits can be frozen for two to three months while the renewal works through the system. Filing the renewal early, ideally before tax season, is the single best way to avoid a stalled refund. A Certifying Acceptance Agent filing tends to land on the faster end of the range and spares you from mailing original documents.
If you also want to compare renewal with applying fresh, or you are helping family members get their first ITIN, you can start an ITIN application or jump straight to our application page.
How to Keep Your ITIN From Expiring Again
Once you have renewed, keeping your ITIN active is easy. The single rule that matters is using the number on a federal tax return at least once every three years. Here is how to stay ahead of it.
File or be claimed every few years
Filing a return with your ITIN resets the three-year clock. If a family member claims you as a dependent using your ITIN, that also counts, so coordinate to make sure it appears on a return.
Watch for Notice CP48
If the IRS mails you a CP48 notice, treat it as your cue to renew before the next filing season so your refund and credits are never interrupted.
Renew off-season when possible
Submitting a renewal outside the January-to-April peak means faster processing and a far lower chance of a frozen refund when you actually file.
Expired ITIN: Frequently Asked Questions
Renew or Apply With a Certified Acceptance Agent
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