ITIN Guide

ITIN Processing Time Guide

ITIN processing takes 7-11 weeks from IRS receipt of Form W-7. Peak season (Jan-April): 9-11 weeks. Off-season: 7 weeks. No expedited option from the IRS.

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ITIN processing takes 7-11 weeks from the date the IRS receives your Form W-7. Peak season (January-April) runs 9-11 weeks. Off-season (May-December) runs about 7 weeks. The IRS offers no expedited ITIN option at any price. A Certifying Acceptance Agent does not speed processing but lets you keep your passport.

An ITIN is an Individual Taxpayer Identification Number, a 9-digit ID the IRS issues to people who must file or report under US tax rules but cannot get a Social Security Number. You apply with Form W-7. The ITIN is for individuals. It is not the same as an EIN, which identifies a business. Many non-residents who form a US LLC need only an EIN, not an ITIN. This guide explains the full ITIN timeline, why it takes weeks rather than days, how to check status, and how ITIN timing differs from EIN timing.

Factor	ITIN	EIN
Issued to	An individual person	A business entity
IRS form	Form W-7	Form SS-4
Processing time	7-11 weeks	4-7 business days (fax)
Expedited option	None	Express via ein.so
Online option	None	Yes, but requires an SSN
ein.so price	$197 / $297	$49 / $97

Timeline

How Long Does ITIN Processing Take?

ITIN processing takes 7-11 weeks from IRS receipt of Form W-7. Peak season (January-April) runs 9-11 weeks. Off-season (May-December) runs about 7 weeks. The clock starts when the IRS receives your form, not when you mail it.

Season	Processing Time	Reason
January-April (peak)	9-11 weeks	Tax filing season volume
May-December (off-season)	7 weeks	Lower application volume
Renewals	7-11 weeks	Same review as new ITINs

Step-by-Step Timeline Breakdown

Phase	Duration
Mail delivery to IRS (international)	1-3 weeks
IRS intake and queuing	1-2 weeks
Document and identity review	2-4 weeks
ITIN assignment and notice (CP565)	1-2 weeks
Return mail of documents and letter	1-3 weeks
Total from receipt	7-11 weeks

International mail adds time on both ends. A W-7 mailed from outside the US can spend 1-3 weeks in transit before the IRS even logs it. Build that into your planning. The 7-11 week figure measures only the IRS internal clock.

Why Weeks

Why Does an ITIN Take 7-11 Weeks When an EIN Takes Days?

An ITIN takes 7-11 weeks because the IRS manually verifies identity documents for a real person, while an EIN takes 4-7 business days because it identifies a business and skips identity verification. The two IDs follow completely different IRS workflows.

Identity Document Review

The IRS verifies a passport or two alternate identity documents for every ITIN. This manual review is the main reason an ITIN takes weeks. An EIN application on Form SS-4 carries no identity-document review step.

Original Documents in Transit

Direct ITIN filers mail original or certified-copy documents to the IRS. Those documents sit at the IRS for the full review window. A Certifying Acceptance Agent verifies documents locally so you keep your passport.

Tax Return Attachment

Most W-7 forms attach a federal tax return. The IRS processes the ITIN and the return together, which adds queue time, especially during the January-April filing rush.

No Online Channel

The IRS has no online ITIN tool. Every W-7 is processed on paper. The EIN, by contrast, has an instant online tool, though that tool requires an SSN and is blocked for most non-residents.

If you only need a business tax ID, you do not wait weeks. See how to get an EIN and EIN processing time for the 4-7 business day path.

Speed Up

Can You Speed Up ITIN Processing?

You cannot pay the IRS to expedite an ITIN; no expedited channel exists at any price. You reduce total time only by filing off-season, submitting an error-free Form W-7, and using a Certifying Acceptance Agent to avoid mailing original documents.

File Off-Season

Submit your Form W-7 between May and December. Off-season processing runs about 7 weeks versus 9-11 weeks during the January-April tax rush. This single choice saves 2-4 weeks.

Submit an Error-Free W-7

Confirm every line is complete, the form is signed, and the reason-for-applying box matches your tax situation. A single error triggers a CP566 notice and restarts the review, adding weeks.

Use a Certifying Acceptance Agent

A CAA verifies your passport in person so you do not mail originals. Processing time stays at 7-11 weeks, but you keep your passport and lower your rejection risk.

Attach a Valid Tax Return or Exception

Most W-7 filings require an attached federal tax return. If you qualify for an exception (such as certain treaty or third-party reporting cases), document it precisely. Confirm your basis with a CPA.

Common Causes of ITIN Delays Past 11 Weeks

Missing signature on Form W-7.
Identity documents not certified or not accepted by the IRS.
Wrong reason-for-applying box checked, causing a CP566 correction notice.
Peak-season backlog from filing during January-April.
International return mail adding 1-3 weeks after assignment.

Status Check

How Do You Check ITIN Application Status?

You check ITIN status by calling the IRS at 800-829-1040 after 7 weeks have passed from your mailing date. From outside the US, call 267-941-1000, which is not toll-free. The IRS provides no online ITIN tracker, so the phone is the only status channel.

Wait at Least 7 Weeks

Do not call before 7 weeks from your mailing date. The IRS will not have a status earlier, and early calls waste a long international hold.

Gather Your Details

Have your full name as written on Form W-7, your mailing address, and the date you submitted the W-7. The IRS agent uses these to locate your file.

Call the Correct Number

Call 800-829-1040 inside the US or 267-941-1000 from abroad. Call during US business hours in the Eastern time zone to reach an agent.

Watch for IRS Notices

The IRS mails a CP565 notice when it assigns your ITIN, or a CP566 or CP567 notice if it needs corrections or rejects the application. Respond to correction notices fast to avoid restarting the clock.

IRS Notice	Meaning
CP565	ITIN assigned successfully
CP566	More information or documents needed
CP567	Application rejected; reapplication required

Compare

How Does ITIN Processing Time Compare to Other IRS IDs?

An ITIN is the slowest common IRS identifier at 7-11 weeks, while an EIN by fax takes 4-7 business days and an SSN takes 2-4 weeks. The difference comes from the manual identity review and paper-only processing that an ITIN requires.

Tax ID	Issued To	Processing Time	Expedited Option
EIN (online)	Business	Instant	N/A (needs SSN)
EIN (fax via ein.so)	Business	4-7 business days	Yes, 2-3 days
SSN	Individual	2-4 weeks	None
ITIN	Individual	7-11 weeks	None

Non-residents forming a US LLC almost always need an EIN, not an ITIN. The EIN uses your passport number on Form SS-4 Line 7b, so you skip the SSN requirement entirely. See getting an EIN without an SSN for the full method. An ITIN becomes relevant only when you have a personal US tax-filing obligation. Confirm your specific need with a CPA, because ein.so does not provide tax advice.

ITIN vs EIN

Do You Actually Need an ITIN or an EIN?

You need an EIN, not an ITIN, when your goal is to run a US business, open a US bank account, or file business taxes. You need an ITIN only when you personally must file or be reported on a US tax return without an SSN. Most non-resident founders need only an EIN.

You Need an EIN

You formed or plan to form a US LLC or corporation. The EIN opens a US bank account, connects payment processors, and files the LLC's annual returns. ein.so files Form SS-4 for $49 in 4-7 business days.

You Need an ITIN

You personally owe a US tax filing, claim a tax treaty benefit, or are a partner in a US partnership that reports your income. The ITIN goes on your individual return via Form W-7. Confirm the requirement with a CPA.

You May Need Both

A foreign owner of a multi-member US LLC taxed as a partnership may need an EIN for the company and an ITIN to file an individual US return. These are separate applications on separate forms. Sequence the EIN first.

Annual LLC Filing

A foreign-owned single-member US LLC files Form 5472 plus a pro-forma Form 1120 each year. The penalty for missing it is $25,000. This uses the company EIN, not your personal ITIN.

Both IDs are free from the IRS itself; the IRS charges $0 for an EIN and $0 for an ITIN. ein.so charges for preparation and filing work: EIN at $49 or $97, and ITIN at $197 or $297. See EIN cost for the full breakdown and what is included.

Planning

How Should You Plan Around the ITIN Timeline?

You plan around the 7-11 week ITIN timeline by starting early, filing off-season, and sequencing your business setup so a slow ITIN never blocks faster tasks. Get your EIN and bank account moving first, since they do not depend on an ITIN.

Start the EIN First

Your EIN takes 4-7 business days, not weeks. File it first so your LLC can open banking and accept payments while any ITIN application is still in IRS review.

File the ITIN Off-Season

If you do need an ITIN, file the Form W-7 between May and December for the 7-week window. Avoid the January-April rush, which adds 2-4 weeks to the IRS clock.

Handle Compliance in Parallel

File your BOI report and prepare Form 5472 using the company EIN. These deadlines do not wait for a personal ITIN to be assigned.

Keep Copies of Everything

Keep a copy of your signed Form W-7, your mailing date, and any IRS notices. You need the mailing date to check status after 7 weeks and to prove timely filing if a delay occurs.

ein.so handles EIN filing and ITIN preparation and does not provide tax advice. For personal tax questions, treaty positions, and whether you truly need an ITIN, work with a US CPA familiar with non-resident matters.

Next Steps

Next Steps For Your Tax IDs

Apply for your EIN — 4-7 business days, $49, uses your passport number, no ITIN needed
Get an EIN without an SSN — the fax method for non-residents on Form SS-4
Read the SS-4 form guide — line-by-line entries for non-resident applicants
Open a US bank account — Mercury and Relay accept non-resident LLC owners
File your BOI report — required for most US LLCs, free at fincen.gov/boi
Prepare Form 5472 — annual filing for foreign-owned LLCs, $25,000 penalty for non-filing

Apply for your EIN — $49

Frequently Asked Questions

How long does an ITIN take to process in 2026?

An ITIN takes 7-11 weeks from the date the IRS receives your Form W-7. Peak tax season (January-April) runs 9-11 weeks due to high volume. Off-season (May-December) runs about 7 weeks. The IRS counts the clock from receipt, not from the date you mailed the W-7.

Can I get an ITIN faster than 7 weeks?

No. The IRS does not offer expedited ITIN processing for any fee. The fastest path is an error-free Form W-7 filed off-season (May-December) for roughly 7 weeks. A Certifying Acceptance Agent (CAA) does not shorten the 7-11 week window; it only lets you keep your original passport.

Does using a CAA speed up ITIN processing?

No. A Certifying Acceptance Agent (CAA) processes in the same 7-11 weeks as a direct filing. The CAA advantage is that you keep your original passport instead of mailing it to the IRS for 7-11 weeks. A CAA also reduces rejection risk by verifying documents before submission.

When should I apply for an ITIN for the fastest result?

Apply between May and December for the fastest result, around 7 weeks. Applications filed January-April hit tax-season volume and take 9-11 weeks. If you attach a federal tax return to your Form W-7, your refund waits until the ITIN is assigned, so off-season filing helps both.

How do I check my ITIN application status?

Call the IRS at 800-829-1040 after 7 weeks have passed from your mailing date. From outside the US, call 267-941-1000 (not toll-free). Have your name, mailing address, and Form W-7 submission date ready. The IRS does not provide an online ITIN status tracker.

Is ITIN processing time the same as EIN processing time?

No. An ITIN takes 7-11 weeks because the IRS reviews identity documents for an individual. An EIN takes 4-7 business days by fax for a business entity, and is instant online for those with an SSN. They are different IDs: an ITIN is for a person; an EIN is for a company.

Why is my ITIN taking longer than 11 weeks?

An ITIN exceeds 11 weeks when the W-7 has errors, missing documents, an unsigned form, or arrives during peak season backlog. The IRS mails a CP566 or CP567 notice requesting corrections, which restarts the review. Allow 2 extra weeks for international return mail before assuming a delay.

Do non-residents who only need an EIN ever need an ITIN?

No. A non-resident forming a US LLC needs only an EIN, not an ITIN. The EIN uses your passport number on Form SS-4 Line 7b. An ITIN is required for personal US tax filing obligations, such as claiming a treaty benefit or being a partner who files a US return. Confirm with a CPA.

Does ein.so offer an ITIN service, and how fast is it?

Yes. ein.so offers ITIN preparation at $197 (Standard) and $297 (Express). The fee covers Form W-7 preparation and document handling, but IRS review still takes 7-11 weeks because no expedited IRS channel exists. For an EIN, ein.so files Form SS-4 for $49 (4-7 business days) or $97 (2-3 business days).

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