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ITIN guide for Wise business users based in Bulgaria
ITIN18 min read

ITIN for Wise business users from Bulgaria

Wise business users in Bulgaria need an ITIN for U.S. tax filings. Learn eligibility, required documents, the application process, and common pitfalls.

Reviewed by , ITIN Specialist at itin.net.

Why Wise Business Users in Bulgaria Need an ITIN

Wise business users in Bulgaria often encounter the need for an ITIN when engaging in U.S. financial activities. This typically arises from setting up a U.S. LLC, which is a common step for international founders using Wise for seamless global transactions. The LLC, while not requiring a U.S. tax identification number for its own operations (it uses an EIN for that), necessitates that foreign owners file U.S. tax forms, specifically Form 5472, to report transactions between the LLC and its foreign owners. Failure to file this form results in substantial penalties, making the ITIN a critical requirement for compliance. For Bulgarian residents, this means navigating U.S. tax obligations even when their primary business operations are outside the U.S. The U.S.-Bulgaria tax treaty may offer certain benefits regarding U.S. source income, but it does not negate the filing requirements for owners of U.S. entities. Therefore, obtaining an ITIN is not optional but a necessary step for these specific users to meet their U.S. tax responsibilities.

Eligibility and Triggers for ITIN Application

An ITIN is required for individuals who must file a U.S. tax return but cannot obtain a Social Security Number (SSN). For Wise business users in Bulgaria, the primary trigger is the ownership of a U.S. entity, such as a U.S. LLC, which necessitates filing Form 5472. This form reports certain financial transactions between a domestic corporation or a foreign-owned domestic disregarded entity and its owner. As a disregarded entity for U.S. tax purposes, a single-member LLC owned by a non-resident individual is treated as if it were a sole proprietorship for tax reporting. The owner is responsible for filing Form 5472 and Form 1120 (or Form 1040-NR if other U.S. income exists), each year the LLC has reportable transactions. The ITIN serves as the identification number for the foreign owner on these forms. Another potential trigger could be receiving certain types of U.S. source income that have withholding requirements, even if no U.S. business entity is directly owned. In such cases, the ITIN is used to claim treaty benefits or report the income accurately to the IRS.

Required Documents for ITIN Application

Applying for an ITIN requires specific documentation to verify your identity and foreign status. The core document is the IRS Form W-7, Application for IRS Individual Taxpayer Identification Number. This form must be completed accurately and submitted along with original or certified copies of supporting identification documents. The most commonly accepted identification document is a valid passport. If a passport is not available, other documents like a national identity card, birth certificate, or driver's license may be accepted, but they must be accompanied by a corroborating document (e.g., a passport or visa). Crucially, you must also provide a federal income tax return that you are required to file. For Wise business users in Bulgaria, this often means filing Form 5472 and potentially Form 1120 or Form 1040-NR. Ensure all documents submitted are either original, certified copies from the issuing agency, or certified true copies from a Certified Acceptance Agent (CAA). The IRS will not return original documents submitted directly by mail.

The ITIN Application Process

The ITIN application process begins with completing Form W-7 and gathering the necessary supporting documents. This includes your identification (typically a passport) and the U.S. federal income tax return you are filing. You have two primary options for submitting your application. The first is to mail all original documents directly to the IRS Service Center in Austin, Texas. Be aware that mailing original documents carries inherent risks, and the IRS typically takes 10–12 weeks to process applications submitted this way. The second, and often preferred, method is to apply through a Certified Acceptance Agent (CAA), such as itin.net. A CAA can verify your original identification documents and submit your application on your behalf. This process is significantly faster, with typical processing times of 5–10 business days from when the IRS receives the application. Using a CAA also eliminates the risk of mailing your original passport or other vital documents to the IRS.

Common Mistakes for Wise Business Users in Bulgaria

Wise business users in Bulgaria face specific hurdles when applying for an ITIN. A frequent error involves incomplete tax filings, particularly missing Form 5472 when required for a U.S. LLC. This oversight can lead to significant penalties, even if the ITIN application itself is otherwise correct. Another common mistake is submitting photocopies of identification documents instead of originals or certified copies. The IRS is very strict on this, and non-compliance will result in rejection. Mismatched names between your identification documents and the Form W-7 are also a frequent cause for denial. Ensure your legal name is identical across all submitted paperwork. Finally, incorrect claims regarding tax treaty benefits, if applicable, can cause delays or rejection. Given the U.S.-Bulgaria tax treaty, understanding its specific articles relevant to your income type is essential, and professional guidance is advisable.

Benefits of Using a Certified Acceptance Agent (CAA)

Applying for an ITIN through a Certified Acceptance Agent (CAA) offers distinct advantages, particularly for Wise business users in Bulgaria. A CAA is an individual or entity authorized by the IRS to assist taxpayers in obtaining ITINs. The primary benefit is that CAAs can authenticate your original identification documents, such as your passport, and send certified copies to the IRS. 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. Furthermore, CAAs review your entire application package, including the tax return, before submission. This pre-screening process helps to catch potential errors or omissions that could lead to rejection, thereby expediting the overall process. For those in Bulgaria, using a CAA like itin.net significantly streamlines the application, reducing the time and anxiety associated with direct submission to the IRS, with processing times often reduced to 5–10 business days.

Next Steps After ITIN Application

Once your ITIN application is approved, the IRS will mail you an ITIN assignment letter, typically CP-565. This letter confirms your unique nine-digit number. With your ITIN in hand, you can now file your U.S. tax return accurately, ensuring compliance with U.S. tax regulations. For Wise business users who established a U.S. LLC, this means you can now correctly file Form 5472 and any other required tax forms. You can also proceed with other essential U.S. business steps, such as opening a U.S. bank account if you haven't already. If you need assistance with your ITIN application or have further questions about U.S. tax obligations, reviewing the ITIN pricing on itin.net or contacting our team is the recommended next step.

Practical tips

  • Use your passport as your primary identification document for the ITIN application; it is the most universally accepted by the IRS.
  • Ensure the name on your Form W-7 exactly matches the name on your passport and any other supporting identification documents.
  • Double-check that your U.S. tax return is complete and correctly filed, especially Form 5472 if you own a U.S. LLC, before submitting it with your Form W-7.
  • If you are unsure about claiming tax treaty benefits under the U.S.-Bulgaria treaty, consult with a tax professional before submitting your application.
  • Consider using a Certified Acceptance Agent (CAA) to avoid mailing original identification documents and to have your application pre-screened for accuracy.

Frequently asked questions

Do I need an ITIN if I only use Wise for my Bulgarian business?

If your business is solely based in Bulgaria and does not involve U.S. income or U.S. entities, you likely do not need an ITIN. However, if you operate a U.S. LLC or have other U.S. tax filing obligations, an ITIN is generally required.

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

When applying through a Certified Acceptance Agent (CAA) like itin.net, the process typically takes 5–10 business days after the IRS receives your application. Mailing directly to the IRS can take 10–12 weeks.

Can I use my Bulgarian national ID card for the ITIN application?

While a passport is the preferred identification document, a Bulgarian national ID card may be accepted if accompanied by a corroborating document. However, using a passport simplifies the process and is highly recommended.

What happens if I don't file Form 5472 for my U.S. LLC?

Failure to file Form 5472 for a foreign-owned U.S. disregarded entity can result in significant penalties, often starting at $25,000 per failure. It is crucial to file this form annually if required.

Will the U.S.-Bulgaria tax treaty affect my ITIN application?

The U.S.-Bulgaria tax treaty primarily affects U.S. tax withholding rates on certain types of income. While it doesn't directly impact your ITIN eligibility, you may need to reference it when filing your U.S. tax return for which the ITIN is required.

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

Yes, itin.net can guide you through the process of opening a U.S. bank account, which is often a necessary next step after obtaining your ITIN and establishing your U.S. business presence.

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