IRS Notice CP48: Simple Explaination On ITIN Renewal For NRIs

As a U.S. taxpayer with an Individual Taxpayer Identification Number (ITIN), receiving an IRS Notice CP48 can feel concerning - especially if you file Form 1040-NR, report U.S.-source income, or claim eligible tax benefits. The notice is simply the IRS's way of informing you that your ITIN has expired or is due to expire and must be renewed before you use it again for future federal tax filings and other IRS-related tax matters.

The good news is that Notice CP48 is one of the more routine IRS notices and is generally straightforward to resolve. Understanding why you received it, what it means, and the steps to renew your ITIN can help you avoid unnecessary processing delays, protect your tax refund, and keep your future U.S. tax filings on track.

What Is IRS Notice CP48?

Here is a quick answer: the Notice CP48 informs you that your Individual Taxpayer Identification Number is expiring or has expired and that you need to renew it using Form W-7 before you use it to file your future IRS tax return.

An ITIN is issued by the IRS for federal tax reporting purposes. Unlike a Social Security Number (SSN), an ITIN can expire under the IRS's renewal rules if it is not used on a federal tax return for the required period or falls within an IRS-designated renewal category.

Notice CP48 is the IRS's reminder that your ITIN is due to expire or has already expired under the IRS renewal rules. The notice explains that you should renew your ITIN before using it on a future federal tax return to avoid processing delays.

Why Did You Receive An ITIN Renewal Notice?

You will receive a CP-48 notice for ITIN renewal under two different triggers, and it is worth knowing which one applies to you.

• No use for three consecutive years: If your ITIN hasn't been used on the federal tax return for three straight tax years, it expires on December 31 following that third year. For example, if an ITIN was last used on a 2022 federal tax return and was not used on returns for 2023, 2024, and 2025, it would generally expire on December 31, 2026.
• IRS-designated renewal groups: From time to time, the IRS requires certain ITINs to be renewed based on specific middle-digit ranges. These renewal groups change over time. If your ITIN falls within one of the IRS-designated renewal categories and has not been renewed, the IRS may send you Notice CP48. The IRS updates designated ITIN renewal groups periodically. Before submitting Form W-7, check the latest IRS ITIN renewal guidance to confirm whether your ITIN falls within a current renewal category.
• However, here is a detail that may surprise NRI families: an ITIN is generally considered used when it appears on the federal tax return, as required under the ITIN rules. If you are unsure whether your foreign filings satisfy the usage requirements or not, review your filing history or consult a tax professional.

Who Receives IRS Notice CP48?

The notice is generally sent to you:

• NRIs filing Form 1040-NR who haven't had a US filing requirement in the past few years.
• Spouses or dependents of the US taxpayer whose ITIN was not used on a recent return.
• Investors or property owners who only file occasionally, such as once every few years, when reporting rental income or a property sale.
• Anyone holding an ITIN with middle digits in an older, previously phased-out range.

If your federal tax filing is not regular, for instance, you file a US return only when you have taxable rental income or gains from investments, and then skip the between-years, then you are very much more likely to hit the three-year no-use trigger than someone who files every year without exception.

What Should NRIs Do After Receiving IRS Notice CP48?

Renewing is generally straightforward and does not require any reapplication from scratch; here's the process.

Complete Form W-7 and then check for the "Renew an existing ITIN" box near the top of the form.

Select the reason for applying that matches your situation, following the latest Form W-7 instructions. Whether a federal tax return must be attached depends on your renewal circumstances and any applicable IRS exceptions.

Collect your documents; for this, you will need your original documents or a certified copy from the issuing agency; especially a passport is enough on its own, as it covers both the primary purpose and the national documents.

Submit it through one of the three channels, either mail it directly to the IRS ITIN processing address, use an IRS-authorized Certified Acceptance Agent (CAA), or visit an IRS Taxpayer Assistance Center in person if you are in the United States.

Renew the whole family together, if applicable. In case you have received a CP48 notice from the IRS, you and your dependents can also renew your ITINs at the same time, even if their ITINs aren't showing immediate expiration, because prevention is always better than cure.

Here is CPA/CA advice for NRIs: working through a Certified Acceptance Agent (CAA) is often convenient, as they help you avoid mailing your original passport internationally and waiting for it to be returned. A CAA will verify your documents locally and then forward the certified copy to the IRS instead of your original documents.

When renewing through a Certified Acceptance Agent, whether you must attach a federal tax return depends on your reason for renewal and any applicable IRS exception, but you do need to state your reason for needing the ITIN on the Form itself.

What Happens If You Ignore IRS Notice CP48?

You must never ignore an IRS notice, be it CP48 or any other, because ignoring the notice does not stop you from filing the return later; instead, it will create more friction.

• You can generally still file your return, but processing may be delayed until your ITIN renewal is completed, which can also delay any associated refund or eligible credits.
• Refunds get delayed while the IRS sorts out the renewal alongside your return.
• Certain tax credits may be denied or held, including credits like the Child Tax Credit, until the ITIN is renewed.
• You will likely receive a follow-up request before your return can be fully processed.

See, none of this is catastrophic on its own, but it can turn your routine filing season into a much slower and more frustrating one, especially if you are expecting a refund or relying on a specific credit.

How Is IRS Notice CP48 Different From ITIN Renewal?

It is easy to conflate the notice with the process itself, so here is a table that demonstrates the distinction.

To NRIs, the last point matters a lot. If you have relocated to India and your mailing address for the US on file is not updated, you may never actually receive CP48, even though your ITIN has actually expired. Waiting for Notice CP48 is not a reliable strategy. If you expect to file a U.S. tax return in the future, reviewing your ITIN status proactively can help you avoid unnecessary delays.

The Bottom Line

The Notice CP48 is one of the most easily manageable IRS notices NRIs can encounter; however, it can quickly disrupt your tax filing timeline if you do not take it seriously or wait too long to act on it. If your ITIN has expired due to non-use for three years or is older, ITIN renewal via Form W-7 is a great process if you pair it with the assistance of a Certified Acceptance Agent handling the document verification on your end.

If your US filing pattern is irregular or you manage your ITINs for multiple family members, then it is worth checking your renewal status proactively. Do not rely on the notice to come to you and then take action. Take the help of a cross-border tax advisor such as Savetaxs. They have a team of CPA and CA experts helping to make sure your ITIN and your filings are compliant and in good standing year to year.

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