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EIN application reference for foreign partners in a US LLC based in Hungary
EIN15 min read

An EIN Guide for foreign partners in a US LLC from Hungary

Foreign partners in a Hungarian-based US LLC need an EIN. Understand the process, required documents, and common pitfalls for non-residents applying for a US business tax ID.

Reviewed by , ITIN Specialist at itin.net.

Foreign Partners in a US LLC from Hungary Face Unique EIN Challenges

As a foreign partner in a U.S. LLC based in Hungary, you face specific hurdles when applying for an Employer Identification Number (EIN). Unlike U.S. residents, you cannot use the IRS online portal, which requires an SSN or ITIN. This immediately directs you to a slower, fax-based application process or requires using a Certified Acceptance Agent (CAA). Furthermore, the recent termination of the Hungary-U.S. tax treaty in 2024 means withholding rates revert to the statutory 30%, impacting how your U.S. business income is taxed and potentially increasing the urgency of correctly establishing your U.S. tax identity with an EIN. This guide focuses on your unique situation, detailing the steps and considerations for obtaining a U.S. business tax ID from Hungary.

When You Need an EIN for Your Hungarian-Owned US LLC

An EIN is a federal tax identification number issued by the IRS to business entities operating in the United States. For a multi-member U.S. LLC owned by foreign partners, including those in Hungary, an EIN is almost always required. You will need an EIN to open a U.S. bank account for your LLC, which is essential for conducting business operations and receiving funds. It is also mandatory if your LLC plans to hire employees in the U.S. or if it is subject to specific IRS information reporting requirements, such as filing Form 5472 for foreign-owned U.S. corporations or LLCs. Even if your LLC is taxed as a partnership and has no U.S. employees, the IRS mandates an EIN for filing partnership tax returns (Form 1065) and issuing Schedule K-1s to partners. Without an EIN, your LLC cannot properly file its U.S. taxes, hindering its ability to operate legally and efficiently.

Required Documents for Non-Resident EIN Applications

Applying for an EIN as a non-resident partner from Hungary requires specific documentation. The primary form is IRS Form SS-4, Application for Employer Identification Number. This form collects detailed information about your U.S. LLC, including its name, address, and the responsible party. For the responsible party (which may be you or another partner), you will need a valid passport. The LLC's formation documents, such as the Articles of Organization or Certificate of Formation, are also crucial. Importantly, your U.S. LLC must have a U.S. business address. This can be a physical office, or for many foreign-owned businesses, a mail forwarding service or a virtual office address is acceptable. If you are applying via fax, ensure you have a reliable U.S. fax number to receive the EIN confirmation. The IRS will process your SS-4 and issue your EIN once approved.

The EIN Application Process for Foreign Partners

The process for obtaining an EIN as a foreign partner in a U.S. LLC from Hungary differs significantly from that of U.S. residents. Since you likely do not have a Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN), you cannot use the IRS's online EIN application portal. Instead, you must apply by fax or mail using Form SS-4. After completing the SS-4, you will fax it to the IRS at the appropriate number for international applicants. The IRS typically processes faxed applications for non-residents within 3–5 weeks. Once approved, the IRS will mail your EIN confirmation letter (CP-575) to the U.S. business address listed on your application. Alternatively, you can use a Certified Acceptance Agent(CAA) to expedite the process, often receiving your EIN in just a few business days. This method involves the CAA verifying your documentation and submitting the application on your behalf.

Common Mistakes for Hungarian-Based US LLC Partners

Foreign partners in a U.S. LLC based in Hungary often make specific errors during the EIN application. A common pitfall is incorrectly filling out line 7b of Form SS-4. If the responsible party does not have an SSN or ITIN, this box should be clearly marked with 'Foreign'. Leaving it blank or entering incorrect information can lead to rejection. Another mistake is providing a foreign address for the U.S. LLC's business address; the IRS requires a U.S. physical address for the business. Mismatched names between the responsible party's passport and the LLC's formation documents can also cause delays or rejections. Finally, attempting to use the online application system without an SSN or ITIN will result in an error and prevent you from proceeding, forcing you to use the fax or mail method.

How a Certified Acceptance Agent (CAA) Streamlines the Process

Applying for an EIN through a Certified Acceptance Agent(CAA) offers significant advantages for foreign partners in a U.S. LLC from Hungary. As an authorized agent of the IRS, a CAA can verify your identity and documentation in person, eliminating the need for you to be physically present in the U.S. or wait weeks for fax processing. The CAA reviews your completed Form SS-4 and your identification documents, ensuring everything is accurate before submitting it to the IRS. This direct validation significantly speeds up the process, typically resulting in an EIN assignment within 1–2 business days. By using a CAA like itin.net, you avoid the lengthy waiting periods associated with fax applications and reduce the risk of errors that could lead to rejection. This service is particularly valuable for those in Hungary needing to open a U.S. bank account or meet other business requirements promptly.

Next Steps After Obtaining Your EIN

Once you have successfully obtained your EIN, you can proceed with critical business setup tasks. The most immediate next step is usually opening a U.S. bank account for your LLC. Banks require your EIN and formation documents to establish the business account. If your LLC plans to hire employees in the U.S., you will need to register with state labor departments and prepare for payroll tax filings. For foreign-owned U.S. LLCs, filing Form 5472 and Form 1065 annually is mandatory. Given the recent changes in the Hungary-U.S. tax treaty, consulting with a U.S. tax professional experienced in international taxation is highly recommended to understand your specific tax obligations and potential withholding requirements. You can review itin.net's EIN application pricing or contact us for assistance.

Practical tips

  • Clearly mark 'Foreign' on line 7b of Form SS-4 if the responsible party has no SSN or ITIN.
  • Ensure your U.S. LLC has a valid U.S. physical address for the IRS to mail your EIN confirmation.
  • Use a mail forwarding service if you do not have a physical U.S. office for your LLC.
  • Have your passport and the LLC's formation documents readily available before starting the SS-4 application.
  • Consider using a Certified Acceptance Agent (CAA) for faster EIN processing, especially when needing to open a U.S. bank account quickly.

Frequently asked questions

Can I apply for an EIN online from Hungary?

No, as a foreign partner without an SSN or ITIN, you cannot use the IRS online EIN application portal. You must apply via fax, mail, or through a Certified Acceptance Agent (CAA).

How long does it take to get an EIN from Hungary?

Applying by fax or mail can take 3–5 weeks. Using a Certified Acceptance Agent (CAA) can expedite the process to 1–2 business days.

What U.S. address do I need for the EIN application?

Your U.S. LLC needs a U.S. physical business address. This can be a registered agent's address, a virtual office, or a mail forwarding service. The IRS will mail the EIN confirmation to this address.

Do I need an ITIN to get an EIN?

No, an ITIN is not required to obtain an EIN. However, as a foreign partner, you will likely need an ITIN later to file your personal U.S. tax returns (Form 1040-NR) and properly report income from the U.S. LLC.

What happens if my EIN application is rejected?

If your application is rejected, the IRS will typically send a notice explaining the reason. You will need to correct the errors and resubmit the application, which will add further delays. Using a CAA can help minimize errors and prevent rejections.

How does the terminated Hungary-U.S. tax treaty affect my EIN application?

The termination of the tax treaty does not directly affect the EIN application process itself. However, it means U.S. business income distributed to Hungarian partners will revert to the standard 30% withholding rate, making proper U.S. tax identification via an EIN even more critical.

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