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Illustration for an ITIN article aimed at OPT workers based in Romania
ITIN12 min read

How OPT workers from Romania Get an ITIN

U.S. OPT workers residing in Romania can obtain an ITIN for tax filing. Learn the specific steps, required documents, and common pitfalls to ensure a smooth application process.

Reviewed by , ITIN Specialist at itin.net.

Why OPT Workers in Romania Need an ITIN

OPT workers based in Romania who earn U.S. income but cannot obtain a Social Security Number (SSN) will need an Individual Taxpayer Identification Number (ITIN) to file U.S. taxes. Unlike many other non-residents, OPT workers often have a more complex relationship with U.S. tax obligations due to their F-1 student status and subsequent work authorization. The primary trigger for needing an ITIN is the requirement to file a U.S. tax return, such as Form 1040-NR, without having an SSN. This situation typically arises when an OPT worker has U.S. source income, such as wages from an internship or job, and is therefore subject to U.S. tax laws. Without an ITIN, you cannot accurately report this income or claim any applicable deductions or credits, potentially leading to penalties and interest from the IRS.

Your OPT status itself does not exempt you from U.S. tax obligations. While F-1 students may have certain exemptions on their earned income (like scholarships), any income earned during OPT is generally taxable. The U.S. tax system requires reporting and payment of taxes on this income. If you are in Romania and receiving income from a U.S. entity, or if your employment contract dictates U.S. tax filing, you must comply. The ITIN serves as your unique tax identification number for these purposes, issued by the Internal Revenue Service (IRS). It allows the IRS to track your tax filings and payments correctly. The process is distinct from obtaining an SSN, which is typically reserved for those authorized to work in the U.S. under different immigration statuses. For OPT workers outside the U.S. or those who haven't yet secured an SSN, the ITIN is the essential solution.

Eligibility and Triggers for an ITIN

An ITIN is required for OPT workers based in Romania primarily when they have a U.S. tax filing obligation and do not possess an SSN. This obligation commonly stems from employment income earned within the United States, even if you are physically located in Romania while working remotely for a U.S. company. Another trigger can be receiving certain types of U.S. passive income, such as dividends or interest, that are subject to U.S. withholding tax, and you wish to claim a reduced rate under a tax treaty. The U.S. tax treaty with Romania may offer benefits, but claiming them often requires filing a U.S. tax return and thus an ITIN.

If you are an OPT worker who has earned income from a U.S. source, you will likely need to file Form 1040-NR, U.S. Nonresident Alien Income Tax Return. This form requires you to report your U.S. income and calculate your tax liability. The IRS mandates the use of an ITIN on this form if you do not have an SSN. Even if your U.S. income is below the threshold for mandatory filing, you might choose to file to claim a refund of over-withheld taxes. For example, if your U.S. employer incorrectly withheld taxes, filing Form 1040-NR with your ITIN is the only way to recover those funds. The IRS issues ITINs to individuals who need a U.S. taxpayer identification number but are not eligible for an SSN. This includes nonresident aliens filing U.S. tax returns or claiming treaty benefits.

Required Documents for Your ITIN Application

To apply for an ITIN, you must complete and submit IRS Form W-7, Application for IRS Individual Taxpayer Identification Number. This form requires your personal information, including your full legal name, foreign address (your address in Romania), and U.S. taxpayer identification number (if applicable, though typically not for this scenario). You will also need to provide proof of identity and foreign status. The most commonly accepted document for this purpose is a valid, unexpired passport. Your passport serves as both proof of identity and nationality.

If a passport is not available, other documents may be accepted, but they must be presented in their original form or as certified copies by the issuing agency. These can include a national identity card, a foreign driver's license, a birth certificate, or a visa. However, the IRS strongly prefers a passport due to its comprehensive nature. Alongside the Form W-7, you must include a federal U.S. income tax return for the year you are claiming the ITIN, unless you qualify for an exception (such as claiming treaty benefits on passive income). If you are applying under a treaty benefit exception, you will need to attach the relevant treaty statement to your Form W-7 submission. Ensure all documents are current and valid. Missing or expired documentation is a frequent reason for application delays or rejections.

The ITIN Application Process: Step-by-Step

The application process for an ITIN involves several key steps. First, you must accurately complete IRS Form W-7. Double-check all fields, especially your name, address, and signature, to prevent errors. Second, gather your supporting documentation. This includes your original or certified copy of a valid passport and the required U.S. federal income tax return (e.g., Form 1040-NR), unless you qualify for an exception.

Once your documentation is ready, you have three main options for submission. You can mail your completed Form W-7 and supporting documents directly to the IRS in Austin, Texas. However, this method requires you to send original documents, which carry the risk of loss or damage during transit, and processing times can be lengthy, often 11 weeks or more. Alternatively, you can apply through a Certified Acceptance Agent (CAA). A CAA, such as itin.net, can verify your original documents and forward your application to the IRS on your behalf, eliminating the need to mail your originals. This is generally the fastest and safest method, with typical processing times of 5–10 business days once the application reaches the IRS. A third option is to apply in person at an IRS Taxpayer Assistance Center (TAC) that offers ITIN application services, but appointment availability can be limited.

Common Mistakes for OPT Workers in Romania

OPT workers in Romania often encounter specific pitfalls when applying for an ITIN. A frequent error is failing to include a complete and accurate U.S. federal income tax return with the Form W-7. For OPT workers, this typically means Form 1040-NR. If you are claiming treaty benefits on passive income, ensure you attach the correct treaty statement, referencing the specific article of the Romania-U.S. tax treaty. Incorrectly claiming treaty benefits or failing to provide the necessary documentation to support such claims is a common rejection reason.

Another pitfall involves mismatches in personal information. Ensure the name on your Form W-7 precisely matches the name on your passport and any other identification documents. Variations in spelling or format can lead to delays. Furthermore, many OPT workers mistakenly believe they are exempt from filing U.S. taxes altogether due to their student status or temporary work authorization. While certain student income might be exempt, income earned during OPT is generally taxable. Relying on outdated information about tax treaty benefits or U.S. tax obligations can also lead to errors. Always verify current IRS requirements and treaty provisions. If you are unsure about your specific tax situation or treaty eligibility, consulting with a tax professional experienced in international taxation is advisable.

Benefits of Using a Certified Acceptance Agent (CAA)

Applying for an ITIN through a Certified Acceptance Agent (CAA), like itin.net, offers significant advantages, especially for OPT workers in Romania. The primary benefit is that a CAA can authenticate your original identification documents, such as your passport. This means you do not have to mail your original passport or other sensitive documents directly to the IRS, mitigating the risk of loss or theft during transit. The CAA reviews your documentation and application for completeness and accuracy before submitting it to the IRS.

This verification process by a CAA expedites the ITIN application. While direct submission to the IRS can take 11 weeks or longer, applications processed through a CAA typically receive an ITIN within 5–10 business days after the IRS receives the application. This faster turnaround is crucial for OPT workers who may need their ITIN urgently for tax filing or other financial purposes. Furthermore, CAAs are trained by the IRS to handle ITIN applications correctly, reducing the likelihood of errors that could lead to rejection. Using a reputable CAA like itin.net provides peace of mind and a more streamlined experience.

Next Steps After Receiving Your ITIN

Once you receive your ITIN from the IRS, typically via a notice called CP-565, your immediate tax filing obligation is met. You should keep your ITIN in a safe place, as you will need it for all future U.S. tax filings. If you have already filed your tax return for the year requiring the ITIN, ensure the correct ITIN is included on any amended returns or future filings. For OPT workers, this ITIN may also be relevant for other financial activities in the U.S., such as opening a U.S. bank account, although an SSN is usually preferred for such services.

Consider reviewing your U.S. tax situation annually to ensure compliance with any ongoing filing requirements. If you establish U.S. residency for tax purposes or your income sources change, your filing obligations might evolve. For those considering establishing a U.S. business presence, an ITIN is sometimes a preliminary step before obtaining an EIN (Employer Identification Number) for a U.S. LLC, though an ITIN is not strictly required for LLC formation itself. If you anticipate ongoing U.S. tax obligations or have complex tax scenarios, it is prudent to consult with a tax professional specializing in international tax. You can review itin.net's ITIN application services or contact us for personalized assistance.

Practical tips

  • Ensure your name on Form W-7 exactly matches your passport and any previous IRS documents to avoid mismatches.
  • If applying for treaty benefits, meticulously review the Romania-U.S. tax treaty articles and attach the correct treaty statement to your Form W-7.
  • Do not mail original identification documents to the IRS; use a Certified Acceptance Agent (CAA) to have your documents verified and avoid the risk of loss.
  • File your U.S. tax return (Form 1040-NR) concurrently with your Form W-7 unless you qualify for a specific exception, such as claiming treaty benefits on passive income.
  • Confirm your current U.S. tax obligations based on your OPT employment and any other U.S. source income; do not assume exemptions apply without verification.

Frequently asked questions

Can I get an ITIN while I am still in Romania?

Yes, you can apply for an ITIN while residing in Romania. The IRS Form W-7 allows you to list your foreign address. The primary supporting document required is usually your original passport, which you can present to a Certified Acceptance Agent (CAA) in Romania or mail to the IRS if you choose that method.

How long does it take to get an ITIN for an OPT worker?

When applying through a Certified Acceptance Agent (CAA) like itin.net, the process typically takes 5–10 business days from the time the IRS receives your application. If you mail your application directly to the IRS, it can take 11 weeks or longer.

Do I need an ITIN if I only worked remotely for a Romanian company but received payment in USD?

If the company is registered in Romania and you are performing services while in Romania, your income is generally considered Romanian-source income. However, if the contract or service provision has a significant nexus to the U.S. (e.g., you are an employee of a U.S. entity), you may still have U.S. tax obligations requiring an ITIN. Consult a tax professional to clarify your specific situation.

What if my passport has expired?

An expired passport cannot be used as a primary identification document for an ITIN application. You must use a valid, unexpired passport or other acceptable identification documents as specified by the IRS. Check the IRS guidelines or consult with a CAA for a list of alternative documents.

Can I use my ITIN to open a U.S. bank account?

While an ITIN can sometimes be used to open a U.S. bank account, many banks prefer or require a Social Security Number (SSN). Banks have their own policies regarding ITIN acceptance. Some online banks or those catering to international clients might be more amenable to opening an account with an ITIN. You might also consider services that help establish a U.S. bank account for non-residents.

What is the difference between an ITIN and an EIN?

An ITIN (Individual Taxpayer Identification Number) is for individuals who need to file U.S. taxes but cannot get an SSN. An EIN (Employer Identification Number) is a tax ID for businesses, corporations, partnerships, and certain other entities. You would use an ITIN for personal tax filings, whereas an EIN is used for business tax filings. You can apply for an EIN using Form SS-4.

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