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Illustration for an ITIN article aimed at OPT workers based in Lithuania
ITIN15 min read

How OPT workers from Lithuania Get an ITIN

OPT workers in Lithuania need an ITIN for U.S. tax obligations. Learn the eligibility, required documents, application process, and common pitfalls to successfully obtain your U.S. tax ID.

Reviewed by , ITIN Specialist at itin.net.

OPT Workers in Lithuania Face Specific ITIN Hurdles

OPT workers in Lithuania typically require an ITIN for U.S. tax compliance, but their unique situation presents distinct challenges. Unlike U.S. residents or citizens, you are operating under an F-1 visa status, which primarily mandates a Social Security Number (SSN) for employment. However, if your SSN application is pending or you are otherwise unable to obtain one, the ITIN becomes your necessary alternative for fulfilling U.S. tax filing requirements. The primary friction point for OPT workers in Lithuania is understanding when an ITIN is truly necessary versus when an SSN should be pursued, and ensuring the correct documentation is submitted to the IRS to avoid delays or rejections specific to their non-resident status.

ITIN Eligibility and Triggers for OPT Workers

An ITIN is required for OPT workers in Lithuania if you must file a U.S. tax return but cannot obtain an SSN. The most common trigger is U.S. source income earned during your OPT period, necessitating filings like Form 1040-NR (U.S. Nonresident Alien Income Tax Return). For example, if you are working for a U.S. company remotely from Lithuania or have U.S. investment income, you will likely need to file. Another scenario involves treaty benefits; if you are claiming benefits under the Lithuania-U.S. tax treaty, an ITIN may be required to report this income accurately. It's crucial to distinguish this from situations where an SSN is available; if you are eligible for an SSN (e.g., through your OPT employment authorization), you should pursue that first. The ITIN is specifically for those who have a tax filing obligation but lack an SSN.

Required Documents for Your ITIN Application

To apply for an ITIN using Form W-7, you must submit a complete application with original or certified copies of supporting identification documents. The IRS mandates that you include proof of your foreign status and identity. The most commonly accepted document is a valid passport. If a passport is unavailable, other identification documents like a birth certificate or national identity card may be used, but a passport is strongly preferred by the IRS. You will also need to include a U.S. tax return (or a return that will be filed simultaneously), unless you qualify for an exception. For OPT workers, this typically means attaching your filed or soon-to-be-filed Form 1040-NR. Ensure all documents accurately reflect your legal name as it appears on your passport or other primary identification.

The ITIN Application Process Timeline

The process for obtaining an ITIN involves submitting your Form W-7 application and supporting documents to the IRS. If you mail your application directly to the IRS, processing can take 7–11 weeks, and you risk mailing original identification documents, which must then be returned by mail. A faster and more secure method is to apply through a Certified Acceptance Agent (CAA). Using a CAA like itin.net typically reduces the processing time to 5–10 business days for the initial review and verification of your documents. The CAA forwards your application to the IRS without you having to send original identification. Once the IRS approves your application, they will issue your ITIN via mail, usually in the form of a CP-565 notice. This entire process, from submission to receiving your ITIN, can take several weeks to a few months depending on the application method and IRS workload.

Common Mistakes for OPT Workers in Lithuania

OPT workers in Lithuania often encounter specific errors when applying for an ITIN. A frequent issue is failing to submit a complete and accurate U.S. tax return alongside the Form W-7. For instance, not correctly calculating U.S. source income or failing to claim applicable tax treaty benefits can lead to rejection. Another pitfall is the mismatch of personal information between your identification documents and the Form W-7; names, dates of birth, and foreign addresses must align perfectly. Furthermore, some OPT workers might mistakenly believe they are eligible for an SSN and delay their ITIN application, only to find out they don't meet the SSN criteria for their specific income type. Ensure your application is for the correct tax year and that any claimed treaty benefits are supported by the Lithuania-U.S. tax treaty provisions.

Benefits of Using a Certified Acceptance Agent (CAA)

Applying for an ITIN through a Certified Acceptance Agent (CAA) offers significant advantages, especially for OPT workers located in Lithuania. As a CAA, itin.net can authenticate your original identification documents, such as your passport, directly. This means you do not have to mail your original passport or other vital documents to the IRS, mitigating the risk of loss or delay. The CAA reviews your entire application package, including the Form W-7 and the associated tax return, for completeness and accuracy before submitting it to the IRS on your behalf. This pre-screening significantly reduces the chances of your application being rejected due to common errors. The expedited review process through a CAA generally leads to receiving your ITIN much faster than applying directly to the IRS.

Next Steps After Obtaining Your ITIN

Once you receive your ITIN from the IRS, it is essential to use it correctly for all future U.S. tax filings and any other required U.S. tax-related activities. This includes accurately reporting your income and any applicable deductions or credits on your tax returns. If you plan to establish a U.S. business entity, such as a U.S. LLC, your ITIN will be crucial for certain filings like Form 5472. It may also be necessary if you intend to open a U.S. bank account or require other financial services that necessitate a U.S. taxpayer identification number. Review the pricing for our ITIN services at itin.net or contact us directly if you have further questions or require assistance with your application.

Practical tips

  • Use the same legal name across your Form W-7, passport, and any prior IRS correspondence; mismatched name fields are a common rejection reason.
  • Ensure your submitted U.S. tax return accurately reflects your U.S. source income and any applicable tax treaty benefits claimed under the Lithuania-U.S. agreement.
  • If you are eligible for an SSN, pursue that avenue first, as it is the primary identification number for U.S. employment and taxation.
  • When applying through a Certified Acceptance Agent, you will not need to mail original identification documents to the IRS, saving time and reducing risk.
  • Double-check all fields on Form W-7 for accuracy, paying close attention to dates, addresses, and identification numbers before submission.

Frequently asked questions

Can I use my Lithuanian passport as my primary identification document for the ITIN application?

Yes, a valid Lithuanian passport is the preferred identification document for your ITIN application. It serves as proof of both your identity and foreign status.

Do I need to file a U.S. tax return to get an ITIN as an OPT worker in Lithuania?

Generally, yes. Most OPT workers in Lithuania need to file a U.S. tax return (such as Form 1040-NR) to qualify for an ITIN, unless you meet specific exceptions for ITIN applications without a concurrent tax return.

How long does it take to get an ITIN if I apply from Lithuania?

If you apply through a Certified Acceptance Agent (CAA), you can expect to receive your ITIN in 5–10 business days after the CAA forwards your application to the IRS. Direct applications to the IRS can take 7–11 weeks.

What if my name on my passport is different from my other documents?

You must use the same legal name across all documents submitted for your ITIN application, including Form W-7 and your passport. If there are discrepancies, you may need to provide additional documentation to explain the difference or legally change your name.

Can I apply for an ITIN if I am not currently earning U.S. income but might in the future?

An ITIN is typically issued to individuals who have a U.S. tax filing requirement or obligation. If you do not have a current obligation or are not planning to receive U.S. income that requires filing, you generally cannot apply for an ITIN.

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

The Lithuania-U.S. tax treaty may be relevant if you are claiming specific tax benefits. You will need to accurately report any income and claimed treaty benefits on your U.S. tax return filed with your Form W-7 application.

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