IRS Form W-7: Complete Guide to Applying for an ITIN

Suppose you have US tax obligations and need to file a US tax return, but while filing, you realize that you cannot get a Social Security number (SSN). In such a situation, applying for an Individual Taxpayer Identification Number (ITIN) becomes necessary. It is a number issued by the IRS that allows individuals to file returns, claim benefits under a treaty, and satisfy other federal tax reporting requirements.

You can apply for an ITIN by filling out Form W-7, which is not too lengthy. However, even a minor mistake while filing can lead to delays or rejection of your application. Common mistakes include providing incorrect personal information or not submitting the required supporting documents. If you have a US tax obligation and want to learn more about an ITIN, this blog is for you. We will cover everything regarding Form W-7, including the required documents, filing process, mistakes to avoid, and much more.

What is Form W-7?

To apply for an ITIN, you can only use Form W-7, which is officially known as "Application for IRS Individual Taxpayer Identification Number". An ITIN is a nine-digit number that always starts with 0. It is issued strictly for federal tax purposes to individuals who have US filing obligations but cannot apply for a Social Security number.

This is what an ITIN does, but you must also stay clear about what the ITIN does not do. So, an ITIN doesn't:

• Allow you to work in the United States, and
• Make you eligible to claim Social Security benefits or the earned income tax credit.

In short, the only purpose of an ITIN is to help you fulfill your tax obligations. The main question here is: Does everybody without an SSN need an ITIN, or do you need to file IRS Form W-7? Let's see that.

Who Needs to File IRS Form W-7?

You will be required to file Form W7 if you:

• Are not eligible to apply for an SSN but have the obligation to file a US federal tax return (For example, Form 1040-NR).
• Don't have an SSN but are being claimed as a spouse or dependent on someone else's US return.
• Need an ITIN to claim benefits under an applicable income tax treaty or meet related federal tax reporting requirements.
• Qualify under one of the IRS' specific exceptions that allows an individual to submit an ITIN application without providing an attached return. For example, some third-party withholding situations or reporting mortgage interest.

If you are eligible, you should apply for an SSN instead of an ITIN. Remember that if you qualify for a Social Security number but you fill out an ITIN application form, it will be rejected by the IRS. Now that we know who needs to file, let's learn about the documents you need to gather before you file Form W-7.

What are the Required Documents for W-7 Form?

Before you proceed further with filing Form W-7, you must gather a few documents, which are as follows:

• Completed Form W-7: Fill out the current version from the IRS.
• Identity Proof and Foreign Status: A valid passport is sufficient to meet both requirements.
• Without a Passport: Provide two documents from the IRS-approved list to cover both identity and foreign status. It can include a national ID card and a birth certificate.
• A signed federal tax return: Attach it to the front of the W-7, unless you qualify for one of the IRS's specific exceptions.
• Originals or certified copies from the issuing agency: Notarized copies will not be accepted under any circumstances.

Now comes the main part: filling out Form W-7. Let's see how you can do it.

How to Fill Out Form W-7?

You might think that this is the stressful part, but it isn't. The form has two pages, and you can complete them easily once you understand what you need to provide in each section. Here is how you can fill out Form W-7:

• Reason for applying: You will get eight options to select from, and you must choose the applicable box. For example, a nonresident alien filing a US return or a dependent of a US citizen/resident alien.
• Personal details: Fill in your full legal name, mailing address, foreign address, date and place of birth.
• Citizenship country and foreign tax ID number: Provide if you have one.
• Visa details: Fill in your visa details, if applicable. This includes visa type and number.
• Document information: Determine which documents you are submitting as proof, including passport, national ID, etc. 
• Prior ITIN or IRSN: Fill in ITIN or IRSN if you ever held one previously, instead of reapplying as new.
• Signature and date: Sign and date the form yourself. Alternatively, if you have your delegate or certified acceptance agent, you must complete their section.

With that, filling out Form W-7 is clear.

Next comes the key step: submitting the form. You have three options to submit Form W-7: by mail, via an IRS acceptance agent, or at an IRS taxpayer assistance center. Let's learn each option in detail. 

How to Submit Form W-7?

To submit the completed Form W-7, you have three official routes. Based on how your original documents are handled, each route may vary. Here are three official submission routes through which you can submit your Form W-7:

By Mail

Mailing is the most commonly used method. Under this option, you can mail the completed Form W-7, supporting documents, and the tax return to the IRS ITIN operation address in Austin, Texas. Check the exact address in the instructions section on your current Form W-7.

However, there is one drawback, which is that you will have to send your original documents by mail, such as your passport. The IRS generally returns original documents within approximately 60 days, although longer processing times may occur during peak filing periods.

Nevertheless, there is one key point to keep in mind. If you think that you might need your passport for any reason during this 60-day window, then mailing your original document is a bad idea.

Through an IRS Acceptance Agent

As discussed above, if you want to keep your passport with yourself throughout the process, this option will be convenient for you. So, the IRS authorizes Certified Acceptance Agents (CAAs) to review your original identity documents and certify them under IRS procedures, allowing you to avoid mailing certain original documents.

Since this is not a free channel offered by the IRS, you may have to pay a service fee to the CAAs to take this option.

At an IRS Taxpayer Assistance Center

The last option is to apply in person at a taxpayer assistance center (TAC). These centers offer ITIN document verification, but you will have to book an appointment before visiting them.

Although you have to submit your original documents for this process, they return them immediately after verifying them. It means there is no stress of not having your original documents when required.

After reading these options, you may be wondering: can I not file my Form W-7 online? Well, as of now, you cannot. Let's learn about this in detail.

Can You File Form W-7 Online?

The IRS does not currently offer a direct online filing option for Form W-7. Applications must generally be submitted by mail or through a Certified Acceptance Agent (CAA) or IRS Taxpayer Assistance Center (TAC).

While filing, you must stay cautious of third-party websites that claim to offer "instant" or fully online ITIN filing. The IRS strictly warns individuals against paying for any service that guarantees results. So, always keep in mind that the IRS will not ask for any money if you file by mail with them directly.

Further, let's look at the common mistakes that individuals face while filing Form W-7.

Common Mistakes When Filing Form W-7

Here are some common mistakes faced by individuals while filing Form W-7 that you should avoid:

• Discrepancy in name or dates: One of the most common reasons for delay isany mismatch between the W-7, the attached tax return, and identity documents.
• Submitting notarized copies: As discussed earlier, notarized copies will be rejected right away; hence, you should submit original or certified copies.
• Choosing the wrong reason: Leaving the "reason for applying" box blank or choosing the wrong box can lead to errors.
• Not attaching a tax return: Applying without attaching a required tax return, even when no exception is applicable, is not allowed.
• Applying for ITIN when eligible to get an SSN: Your ITIN request application will be rejected right away by the IRS if you are eligible to apply for an SSN.
• Mailing a Passport: If you know that you will need your passport for any specific reason, you must not mail it. Instead, it is advised to use a CAA or TAC.

Lastly, let's consider an example of an NRI to clear up everything.

The Bottom Line

For anyone who is not eligible to get an SSN, Form W-7 becomes mandatory, which helps obtain or renew an ITIN. While filing out the form, you must ensure that you only fill in the accurate details, submit the correct documents, and choose the relevant filing method. Ensuring these steps can help you avoid any unnecessary delays and IRS correspondence.

The easiest way to enjoy a smooth application process is to complete your Form W-7 carefully and accurately. Moreover, contact an expert at Savetaxs for assistance if your tax situation involves treaty claims, international claims, or other tax matters. We have an entire team of experts familiar with all the cross-border rules, procedures, and requirements. Our team can help you prepare and review your Form W-7 carefully to reduce the risk of errors and unnecessary delays throughout the application process. Contact us right away, as we are actively working 24/7 across all time zones.