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ITIN guide for Wise business users based in Greece
ITIN15 min read

ITIN for Wise business users from Greece

Wise business users in Greece often need an ITIN for U.S. tax compliance. Learn the application process, required documents, and common pitfalls for your specific situation.

Reviewed by , ITIN Specialist at itin.net.

Why Wise Business Users in Greece Need an ITIN

Wise business users based in Greece typically encounter the need for an ITIN when engaging with the U.S. financial or tax system. This often arises from setting up a U.S. LLC for international operations, which frequently requires an Employer Identification Number (EIN) obtained via Form SS-4, and subsequently, an ITIN for related filings or personal U.S. income.

Many Greek entrepreneurs and businesses use Wise for its efficient international money transfers, often pairing it with a U.S. bank account. When these businesses establish a presence in the U.S., such as through a U.S. LLC potentially holding a U.S. bank account, U.S. tax obligations can arise. These obligations, even for non-residents, necessitate an ITIN for accurate reporting to the IRS. The ITIN serves as a unique identifier for tax purposes when a Social Security Number (SSN) is unavailable.

ITIN Eligibility and Triggers for Greek Wise Users

An ITIN is required for individuals who must file a U.S. tax return but are not eligible for an SSN. For Wise business users in Greece, this commonly includes situations where you receive U.S.-sourced income directly, or your U.S. business activities trigger reporting requirements. For instance, if your U.S. LLC has U.S. bank account activity or transactions that require reporting under Form 5472, and you are the responsible party, an ITIN may be necessary.

Another common trigger is if you are required to file a U.S. tax return as an individual, such as Form 1040-NR, due to U.S. business activities or investments generating income. The IRS mandates that any individual filing a U.S. tax return must have a valid tax identification number. For non-residents without an SSN, this number is the ITIN. The Greece-U.S. tax treaty may influence tax obligations, but it does not negate the need for an ITIN if a U.S. filing requirement exists.

Required Documentation for Your ITIN Application

To apply for an ITIN, you must submit IRS Form W-7 along with original or certified copies of supporting identification documents. The primary document proving your identity and foreign status is typically a valid passport. If a passport is not available, other identification documents such as a birth certificate, national identity card, or driver's license may be accepted, but a passport is strongly preferred by the IRS.

In addition to your identification, you will need to provide documentation that necessitates the ITIN. This is often a copy of a U.S. federal tax return you are required to file. If you are applying based on a tax treaty benefit, you may need to include relevant treaty documentation or specific forms that claim those benefits. The IRS has specific requirements for each document, and ensuring they meet these standards is critical for a smooth application process. The itin.net service simplifies this by guiding you through the exact documentation needed.

The ITIN Application Process Step-by-Step

The ITIN application process begins with accurately completing IRS Form W-7. This form requests personal information, your reason for applying for an ITIN, and details about your supporting documentation. Ensure all fields are filled out correctly to avoid delays or rejection.

Once Form W-7 is completed, you must gather your original identification documents and the required tax return or treaty documentation. You then have two main options for submission: you can mail your application and original documents directly to the IRS, or you can use the services of a Certified Acceptance Agent (CAA). The CAA route is generally faster and more secure, as CAAs can verify your original documents and transmit your application to the IRS on your behalf. The typical timeline for receiving an ITIN via a CAA is 5–10 business days, whereas direct submission to the IRS can take significantly longer.

Common Mistakes for Greek Wise Business Users

Wise business users in Greece often make specific errors when applying for an ITIN, stemming from the intersection of international business and U.S. tax requirements. A frequent mistake is failing to submit original or certified copies of identification documents when applying directly to the IRS, which can lead to the immediate return of your application. Using a Certified Acceptance Agent, like itin.net, avoids this by verifying your documents on your behalf.

Another pitfall is incorrect or incomplete tax documentation. If your ITIN application is based on a U.S. tax return, ensure it is fully completed and signed. For those claiming treaty benefits, incorrectly citing treaty articles or failing to provide the required supporting forms can cause rejection. Ensure that the name on your Form W-7 precisely matches your identification documents; any discrepancies, even minor ones, can lead to issues.

Benefits of Using a Certified Acceptance Agent (CAA)

Using a Certified Acceptance Agent (CAA) for your ITIN application offers significant advantages, especially for non-residents like Wise business users in Greece. The most critical benefit is that CAAs can verify your original identification documents, such as your passport, and return them to you immediately. This eliminates the risk of mailing sensitive original documents to the IRS and the lengthy wait for their return.

CAAs are trained by the IRS to review and submit ITIN applications. They ensure that your Form W-7 and supporting documents are complete and accurate before forwarding them to the IRS. This significantly reduces the chances of your application being rejected due to common errors. The processing time is also considerably faster when using a CAA, often resulting in an ITIN being issued within 5–10 business days, compared to several weeks or months when applying directly to the IRS.

Next Steps After Obtaining Your ITIN

Once you have received your ITIN from the IRS, typically via IRS notice CP-565, you can proceed with your U.S. tax filings or other necessary financial activities. If your ITIN was required for a specific U.S. tax return, ensure that return is filed by its deadline. If you obtained an ITIN to facilitate business operations, such as opening a U.S. bank account or managing a U.S. LLC with an EIN, you can now finalize those processes.

For Wise business users in Greece who have obtained their ITIN, the next steps often involve ensuring ongoing compliance with U.S. tax regulations. This may include filing annual tax returns or informational returns like Form 5472. Reviewing your U.S. tax obligations and considering professional advice can help maintain compliance. You can explore pricing for ITIN services on the itin.net website or contact us directly for personalized assistance.

Practical tips

  • Use the same legal name across Form W-7, your passport, and any prior IRS correspondence—mismatched name fields are the most common rejection reason.
  • If you are applying for an ITIN based on a U.S. tax return, ensure that return is complete and signed by you before submitting your Form W-7.
  • When claiming tax treaty benefits, carefully review the specific treaty article and ensure your supporting documentation aligns precisely with the IRS requirements for that claim.
  • Consider using a Certified Acceptance Agent (CAA) to verify your original identification documents and reduce the risk of loss or delay associated with mailing them directly to the IRS.
  • Keep copies of all documents submitted with your ITIN application, including Form W-7 and your identification, for your personal records.

Frequently asked questions

Do I need an ITIN if my U.S. LLC is managed from Greece?

If your U.S. LLC has U.S. tax obligations, such as reporting requirements under Form 5472 for transactions with a foreign owner, and you are the responsible party without an SSN, you will likely need an ITIN. The LLC itself will need an EIN, which can be obtained via Form SS-4.

How long does it take to get an ITIN for a Wise business user in Greece?

When applying through a Certified Acceptance Agent (CAA) like itin.net, the typical processing time for an ITIN is 5–10 business days. Applying directly to the IRS can take several weeks to a few months.

Can I use my Wise account details as proof of identity for an ITIN?

No, a Wise account statement or card is not considered a primary identification document by the IRS for ITIN applications. You must provide a government-issued identification document such as a valid passport.

What is the difference between an ITIN and an EIN for my business?

An ITIN (Individual Taxpayer Identification Number) is for individuals who need to file U.S. taxes but don't have an SSN. An EIN (Employer Identification Number) is a tax ID for businesses, required for entities like U.S. LLCs, corporations, and partnerships.

Does the Greece-U.S. tax treaty affect my ITIN application?

The treaty may affect your U.S. tax liability or withholding rates, but it does not eliminate the need for an ITIN if you have a U.S. tax filing requirement. You may need to reference specific treaty articles when applying for an ITIN based on treaty benefits.

Can itin.net help me open a U.S. bank account after I get my ITIN?

While itin.net focuses on ITIN applications, having an ITIN is often a prerequisite for opening a U.S. bank account. We can guide you on the general requirements and the importance of having a U.S. business structure and tax ID in place for banking services.

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