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EIN guide for Wise business users (non-residents)
EIN15 min read

EIN for Wise business users

Non-resident Wise business users often need a U.S. Employer Identification Number (EIN) to operate effectively. Learn the requirements, process, and common pitfalls for obtaining one.

Reviewed by , ITIN Specialist at itin.net.

Non-Residents Using Wise Face Unique EIN Hurdles

Many non-resident business owners use Wise (formerly TransferWise) to manage international payments and operate a U.S. business, often a U.S. LLC. A common requirement for these businesses is an Employer Identification Number (EIN), a federal tax ID issued by the IRS. While the IRS offers an online application for U.S. residents, non-residents without a Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN) face a different, more manual process. This typically involves submitting IRS Form SS-4 by fax or mail, which significantly extends processing times compared to the online method. The specific friction point for Wise business users is often realizing that the streamlined online EIN application is not an option, leading to unexpected delays in setting up essential business functions like opening a U.S. bank account or hiring staff.

This distinction is critical. The IRS directs those without an SSN to the fax or mail application. This process requires careful completion of Form SS-4, ensuring all fields are accurate and relevant information is provided. For example, line 7b of the SS-4, which asks for the responsible party's SSN, ITIN, or EIN, must be marked 'Foreign' if none of these apply. Failing to do so can lead to application rejection. The typical timeline for non-residents is considerably longer, ranging from 3 to 5 weeks, although expedited options exist. Understanding this procedural difference upfront is key for Wise business users planning their U.S. business launch or expansion.

When You Need an EIN as a Non-Resident Wise Business User

An EIN is a nine-digit federal tax identification number required for U.S. businesses. For non-resident Wise business users, an EIN is generally mandatory in several situations. The most common trigger is opening a U.S. business bank account. Many U.S. banks, including popular fintech options often paired with Wise, require an EIN for their business accounts, even for foreign-owned entities. Without an EIN, you cannot establish a formal banking relationship in the U.S., which is often a prerequisite for conducting business effectively.

Beyond banking, an EIN is necessary if your U.S. entity plans to hire employees within the United States. It is used for reporting wages and withholding taxes. Furthermore, if your U.S. business entity is a corporation (C-Corp) or a partnership, an EIN is required for filing federal tax returns, regardless of whether you have U.S.-based operations or income. Even for a U.S. LLC owned by non-residents, an EIN becomes essential if the LLC has more than one member or if it elects to be taxed as a corporation. For single-member U.S. LLCs owned by non-residents, an EIN is also needed for specific IRS filings like Form 5472 if the LLC has U.S. effectively connected income or engages in certain transactions with its foreign owner. The IRS mandates this to track foreign-owned U.S. entities. Opening a U.S. LLC is a common step for international founders using Wise, and an EIN is almost always part of that setup process.

Required Documents for Your EIN Application

To apply for an EIN as a non-resident, you will need to gather specific documentation. The primary document is IRS Form SS-4, the Application for Employer Identification Number. This form requires detailed information about your business, including its legal name, trade name (if different), business mailing address, physical address (if different), and the name and identifying number of the responsible party. For non-residents applying without an SSN or ITIN, the responsible party's passport information is typically used as identification.

In addition to Form SS-4, you must have your business formation documents ready. If you have formed a U.S. LLC, this would be your Articles of Organization or Certificate of Formation, along with your Operating Agreement. For corporations, it's the Certificate of Incorporation. These documents prove the legal existence and structure of your U.S. business entity. A crucial element is the U.S. business address. While you must have a U.S. business presence, this does not necessarily mean a physical office. Many non-residents use a registered agent service address or a mail forwarding service for this purpose. Ensure this address is valid and recognized by the IRS for business mail. The IRS will mail the official EIN confirmation letter to this address. Having all these documents organized and accurate before starting the application process will prevent delays and potential rejections.

The Non-Resident EIN Application Process

Applying for an EIN as a non-resident without an SSN or ITIN involves a manual process with the IRS. Since you cannot use the online application portal, you must submit Form SS-4 via fax or mail. The process begins with accurately completing Form SS-4. Pay close attention to lines requiring the responsible party's identification. If the responsible party does not have an SSN, ITIN, or EIN, write 'Foreign' in the designated field on line 7b. This is a common point of error for non-residents.

Once Form SS-4 is complete, you will send it to the IRS. For fax applications, the number is typically 855-641-5470 for domestic filers, but it's crucial to verify the correct international fax number with the IRS directly or through a service provider, as it can change. Mail applications should be sent to the appropriate IRS address for EIN applications, which also varies by location and service type. After submission, the IRS will process your application. For non-residents applying via fax or mail, the typical processing time is 4–5 weeks. The IRS will issue your EIN and send a confirmation letter (CP-575) to the U.S. business address you provided. This confirmation letter is vital for subsequent business activities, such as opening bank accounts. Using a service like itin.net can streamline this process, especially if you opt for expedited channels through a Certified Acceptance Agent (CAA).

Common Mistakes for Non-Resident Wise Business Users

Non-resident Wise business users often encounter specific pitfalls when applying for an EIN, largely due to unfamiliarity with U.S. tax procedures and the non-resident application pathway. A frequent error is attempting to use the online EIN application, which is only available to applicants with an SSN or ITIN. This leads to immediate failure and confusion. The correct method for non-residents is faxing or mailing Form SS-4.

Another common mistake on Form SS-4 is incorrectly filling out the responsible party's identification. Forgetting to write 'Foreign' on line 7b when the responsible party lacks an SSN or ITIN is a primary reason for application rejection. Additionally, misunderstandings about the U.S. business address can cause issues. Some applicants assume they need a physical office space, which isn't always the case. Using a reliable mail forwarding service or the address of your registered agent is generally acceptable, but it must be a valid U.S. address that the IRS can use for correspondence. Finally, delays in obtaining an EIN can occur if the formation documents are not properly submitted or if there are discrepancies in the business name or legal structure provided on the SS-4 compared to the formation documents. Wise business users should ensure their U.S. LLC or other entity structure is fully established and documented before applying for the EIN.

The Certified Acceptance Agent (CAA) Advantage

For non-resident Wise business users, applying for an EIN through a Certified Acceptance Agent (CAA) offers a significantly faster and more reliable path. As a CAA, itin.net can act as an intermediary between you and the IRS. This means we can submit your Form SS-4 on your behalf, often leveraging expedited processing channels that are not available to individuals applying directly by fax or mail.

When you use a CAA like itin.net, we verify your identity and ensure your Form SS-4 is completed accurately, minimizing the risk of errors that lead to delays or rejections. We understand the specific requirements for non-residents and can guide you through document preparation and the application submission. This service is particularly valuable because the standard processing time for non-residents can be several weeks. Through the CAA program, especially when utilizing expedited options, the EIN can sometimes be obtained in as little as 3–5 business days. This acceleration is crucial for businesses needing to open a U.S. bank account promptly or meet other time-sensitive operational requirements. While there is an additional fee for this expedited service, the time saved and the increased certainty of a correct application often make it a worthwhile investment for international entrepreneurs.

Next Steps After Obtaining Your EIN

Once you have received your EIN confirmation from the IRS, the next critical step is to open your U.S. business bank account. Many banks require your EIN and formation documents to set up an account. This is essential for managing your business finances, separating personal and business funds, and facilitating transactions, especially if you are using Wise for international transfers and need a U.S. dollar account.

Following the bank account opening, you will need to ensure compliance with ongoing U.S. tax obligations. For U.S. LLCs owned by non-residents, this often includes filing Form 5472 annually to report transactions between the LLC and its foreign owner, even if there is no tax liability. If your business hires employees, you must set up payroll and tax withholding systems. Staying compliant involves understanding federal, state, and local tax requirements relevant to your business structure and operations. For personalized assistance with your EIN application or to discuss your U.S. business setup needs, reviewing the available service options on itin.net or contacting us directly is recommended.

Practical tips

  • Ensure the 'responsible party' on Form SS-4 is accurately identified, and if they have no U.S. tax ID, clearly write 'Foreign' on line 7b.
  • Use a reliable U.S. mail forwarding service or your registered agent's address for the business mailing address on Form SS-4, as the IRS will send the EIN confirmation to this location.
  • Double-check that the legal name of your business entity on Form SS-4 exactly matches your formation documents (e.g., Articles of Organization for an LLC).
  • If you need your EIN quickly for banking or other urgent business needs, consider using an expedited service through a Certified Acceptance Agent (CAA) like itin.net.
  • Understand that if your U.S. LLC is single-member and owned by a non-resident, you will likely need to file Form 5472 annually, even if the LLC has no U.S. tax liability.

Frequently asked questions

Can I apply for an EIN online as a non-resident Wise business user without an SSN?

No, the IRS online EIN application portal is only available to applicants who have a Social Security Number (SSN) or an Individual Taxpayer Identification Number (ITIN). Non-residents without an SSN or ITIN must apply by fax or mail using Form SS-4.

How long does it take for a non-resident to get an EIN?

The typical processing time for a non-resident applying for an EIN via fax or mail is 4–5 weeks. Using an expedited service through a Certified Acceptance Agent (CAA) can reduce this to 3–5 business days.

What U.S. address do I need to provide for an EIN application?

You need to provide a valid U.S. business address. This can be the physical location of your business, the address of your registered agent, or a mail forwarding service. The IRS will use this address to send your EIN confirmation letter.

Can my U.S. LLC be owned by a non-resident?

Yes, U.S. LLCs can be owned by non-residents. However, this often triggers specific IRS filing requirements, such as Form 5472, and necessitates obtaining an EIN.

Is an EIN required to open a Wise business account?

Wise business accounts are designed for international money transfers and do not typically require a U.S. EIN to open. However, if you plan to operate a U.S. business alongside your Wise account, such as having a U.S. LLC, you will likely need an EIN to open a separate U.S. business bank account.

What is a Certified Acceptance Agent (CAA) and how can they help me get an EIN?

A Certified Acceptance Agent (CAA) is an individual or entity appointed by the IRS to assist taxpayers, including non-residents, in obtaining an EIN. CAAs can verify your identity and application details, submit Form SS-4 on your behalf, and often use expedited processing channels, significantly speeding up the EIN issuance process.

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