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Illustration for an ITIN article aimed at agency owners based in Greece
ITIN15 min read

How agency owners from Greece Get an ITIN

Greek agency owners need an ITIN for U.S. tax compliance. Learn the process, required documents, and common pitfalls to ensure a smooth application.

Reviewed by , ITIN Specialist at itin.net.

Why Greek Agency Owners Need an ITIN

Agency owners in Greece often encounter the need for an Individual Taxpayer Identification Number (ITIN) when their business activities involve U.S. clients or income. This requirement typically arises when contracts, payment processing, or certain U.S. tax filings necessitate a U.S. taxpayer identification number. Unlike U.S. citizens or residents eligible for a Social Security Number (SSN), individuals without an SSN who have U.S. tax obligations must obtain an ITIN. For Greek agency owners, this scenario frequently occurs when setting up a U.S. entity, such as a U.S. LLC, to serve American clients more effectively. A U.S. LLC requires an EIN (Employer Identification Number) for its own tax filings and for opening U.S. bank accounts, but the individuals behind the agency may still need an ITIN for personal U.S. tax reporting if they receive distributions or other forms of income from the U.S. entity.

The specific friction point for agency owners in Greece is often the need to establish a formal business presence in the U.S. to secure lucrative contracts or to comply with payment processor requirements. Many U.S. clients and platforms require a U.S. tax ID for the business entity, which leads to the need for an EIN. However, the flow of funds or the structure of the business might then trigger personal U.S. tax reporting obligations for the Greek owner, thus necessitating an ITIN. Without an ITIN, these business opportunities can be hindered, and U.S. tax compliance becomes impossible, potentially leading to penalties. The Greece–U.S. tax treaty, while beneficial for avoiding double taxation on certain income, does not eliminate the need for U.S. tax reporting or identification numbers when U.S. source income is involved.

ITIN Triggers for Greek Agency Owners

An ITIN becomes a requirement for agency owners in Greece primarily when they engage in activities that trigger U.S. tax obligations. The most common trigger is receiving U.S. source income that is not subject to U.S. tax withholding at the highest applicable treaty rate. For instance, if your agency provides services to U.S. clients, and payments are made directly to you or your Greek entity without sufficient U.S. tax withholding, you may have a personal U.S. tax filing requirement. This often necessitates filing a U.S. non-resident tax return, such as Form 1040-NR.

Another significant trigger is the ownership of a U.S. business entity. If you establish a U.S. LLC, even one managed remotely from Greece, you will likely need an EIN for the entity itself. However, if the U.S. LLC makes distributions to you, or if it's structured in a way that requires reporting by the owner (like a single-member LLC treated as a disregarded entity for tax purposes), you may need an ITIN to report that income on your U.S. personal tax return. Furthermore, certain U.S. financial institutions or payment platforms may require a U.S. taxpayer identification number for account opening or to avoid backup withholding, even if a formal tax filing isn't immediately apparent. The IRS issues ITINs to individuals who have a U.S. tax obligation but are not eligible for an SSN. This includes non-resident aliens who earn U.S. income or are required to file U.S. tax returns.

Required Documents for ITIN Application

To apply for an ITIN, you must submit Form W-7, Application for IRS Individual Taxpayer Identification Number. This form requires your full legal name, foreign address, and other personal details. Critically, you must provide original or certified copies of identification documents to verify your identity and claim foreign status. The most commonly accepted and preferred document is a valid passport. If you do not have a passport, other documents like a national identity card, driver's license, or birth certificate may be accepted, but a passport significantly simplifies the process and reduces the risk of rejection.

In addition to a primary identification document, you will need to provide supporting documentation that substantiates your reason for needing an ITIN. For agency owners in Greece, this often involves documentation related to U.S. tax filings or U.S. business activities. This could include a copy of your U.S. tax return (if you are filing one with the W-7 application), or documentation proving your need to file, such as a U.S. income statement or a letter from a U.S. client. If you are applying under a specific tax treaty benefit, you may need to provide relevant treaty-related documentation. Ensure all submitted documents are clear, legible, and accurately reflect your information. Missing or unclear documentation is a primary reason for application delays or rejections.

The ITIN Application Process

The ITIN application process can be completed in a few ways, but the most efficient for agency owners in Greece is typically through a Certified Acceptance Agent (CAA). A CAA is an individual or entity authorized by the IRS to assist applicants in obtaining ITINs. When you apply through a CAA like itin.net, they will verify your original identification documents, such as your passport, and forward your completed Form W-7 and supporting documentation to the IRS on your behalf. This eliminates the need to mail your original, sensitive documents directly to the IRS, which is a common point of anxiety for applicants.

The typical timeline for processing an ITIN application through a CAA is approximately 5–10 business days from the time the IRS receives the application package. This is significantly faster than mailing your application directly to the IRS, which can take several weeks or even months. Once the IRS processes your application, they will issue you an ITIN via mail, typically in the form of a notice called CP-565. If you are filing your tax return concurrently with your ITIN application, the IRS will process the tax return first and then issue the ITIN. It is important to ensure your Form W-7 is complete and accurate, and that all supporting documents are correctly certified or presented to the CAA. Incomplete applications are the most frequent cause of delays.

Common Mistakes for Greek Agency Owners

Agency owners in Greece often make specific errors when applying for an ITIN, stemming from a lack of familiarity with U.S. tax procedures. A frequent mistake is failing to accurately report U.S. source income on their tax return when filing concurrently with the Form W-7. This could involve underreporting income from U.S. clients or misinterpreting the applicability of the Greece–U.S. tax treaty. For example, incorrectly claiming treaty benefits without understanding the specific requirements can lead to an ITIN denial or future IRS scrutiny. Ensure you understand which income is subject to U.S. tax and how treaty provisions apply to your specific situation.

Another common pitfall is the mismanagement of supporting documents. While the IRS requires original or certified copies of identification, some applicants mistakenly mail originals directly to the IRS. This practice carries a significant risk of document loss. Using a Certified Acceptance Agent mitigates this risk by verifying your documents locally. Additionally, ensure that the name on your Form W-7 exactly matches the name on your passport or other primary identification document. Any discrepancies, even minor ones, can cause delays or rejection. Finally, incomplete or inaccurate information on the Form W-7 itself, such as missing dates or incorrect address details, will lead to processing issues. Double-checking every field before submission is essential.

The Certified Acceptance Agent (CAA) Advantage

Applying for an ITIN via a Certified Acceptance Agent (CAA) offers distinct advantages, particularly for agency owners located in Greece. The primary benefit is the secure verification of your identification documents. Instead of mailing your original passport or other vital documents directly to the IRS, you present them to a CAA. The CAA authenticates these documents, returns the originals to you immediately, and sends certified copies along with your application to the IRS. This process significantly reduces the risk of losing your original identification during transit.

Furthermore, CAAs are trained by the IRS to ensure your Form W-7 and supporting documentation are complete and accurate before submission. This pre-screening process helps to avoid common errors that lead to delays or rejections, streamlining the overall application. For individuals in Greece, this means a more predictable and faster processing timeline, often within 5–10 business days after the IRS receives the application. Working with a reputable CAA like itin.net provides peace of mind and a higher likelihood of a successful ITIN application on the first attempt. This specialized service is designed to simplify the complexities of the U.S. tax system for international applicants.

Next Steps After ITIN Application

Once you receive your ITIN (IRS notice CP-565), you can proceed with your U.S. tax obligations. If you applied for the ITIN concurrently with a tax return, that return will now be processed by the IRS. You can use your ITIN for any future U.S. tax filings, including those related to your agency's activities or personal U.S. income. It is crucial to keep your ITIN documentation secure, as it is a personal identification number.

For agency owners in Greece, the next practical steps often involve setting up or formalizing your U.S. business presence. This might include opening a U.S. bank account to receive payments from U.S. clients more efficiently. Having an ITIN can facilitate this process, as some U.S. banks may require it. You may also need to revisit your U.S. LLC formation or update your Operating Agreement based on your tax situation. Remember that an ITIN is for tax purposes; it does not grant work authorization or U.S. residency. For ongoing U.S. tax compliance, consider engaging with a tax professional experienced in international taxation. You can review itin.net’s ITIN pricing and services or contact us for personalized assistance.

Practical tips

  • Use the exact same legal name on your Form W-7 as it appears on your passport or other primary identification document to avoid discrepancies.
  • If you are filing a U.S. tax return with your Form W-7, ensure all income reported is accurate and supported by documentation, especially when claiming treaty benefits.
  • When applying through a Certified Acceptance Agent, have your identification documents and Form W-7 ready for review during your appointment.
  • Keep a complete copy of your submitted Form W-7 and all supporting documents for your own records, along with the IRS ITIN assignment letter (CP-565).
  • Understand that an ITIN is for tax reporting purposes only and does not confer any immigration or work benefits in the United States.

Frequently asked questions

Can I use my Greek tax identification number instead of an ITIN for U.S. tax purposes?

No, your Greek tax identification number is specific to Greece and cannot be used for U.S. tax obligations. The IRS requires a U.S. taxpayer identification number, either an SSN or an ITIN, for individuals who must file U.S. taxes but are ineligible for an SSN.

How long does it take for the IRS to issue an ITIN after my application is submitted?

When applying through a Certified Acceptance Agent (CAA), the typical processing time is 5–10 business days after the IRS receives your complete application. If you mail your application directly to the IRS, it can take several weeks to months.

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

An ITIN (Individual Taxpayer Identification Number) is for individuals who have U.S. tax filing obligations but no SSN. An EIN (Employer Identification Number) is for business entities, like a U.S. LLC, to identify them for tax purposes. Your agency may need both.

Do I need to be physically present in the U.S. to apply for an ITIN?

No, you do not need to be physically present in the U.S. to apply for an ITIN. Agency owners in Greece can apply by mail or, more conveniently and securely, through a Certified Acceptance Agent (CAA) who can handle the process remotely or in person if you visit the U.S.

What happens if I don't have a U.S. tax filing requirement but want to open a U.S. bank account?

While some U.S. banks may require a U.S. taxpayer identification number (like an ITIN) for account opening, it is generally required only if you have a U.S. tax obligation. Some financial institutions, particularly those serving international clients or digital banks, may have alternative requirements or may not require an ITIN if you are not earning U.S. income. It is best to check directly with the bank.

Can the Greece–U.S. tax treaty eliminate my need for an ITIN?

The Greece–U.S. tax treaty helps to prevent double taxation on certain types of income earned by residents of Greece from U.S. sources. However, it does not eliminate the requirement to file U.S. tax returns if you have U.S. source income or other U.S. tax obligations. If you have such obligations and are not eligible for an SSN, you will still need an ITIN.

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