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Illustration for an EIN article aimed at Wise business users based in Spain
EIN15 min read

How Wise business users from Spain Get an EIN

Wise business users in Spain need an EIN for U.S. business operations. Learn the specific requirements, application process, and common pitfalls for obtaining your U.S. tax ID.

Reviewed by , ITIN Specialist at itin.net.

Wise Business Users in Spain Face Unique EIN Challenges

Wise business users in Spain often encounter a specific hurdle when establishing U.S. business operations: obtaining an Employer Identification Number (EIN). Unlike U.S. residents who can apply online, non-residents without a U.S. Taxpayer Identification Number (SSN or ITIN) face a more complex process. This typically involves submitting Form SS-4 via fax or mail, leading to significantly longer processing times. The primary friction point is the lack of a direct online application channel for individuals without a U.S. TIN. Wise business users, while leveraging a global financial platform, are still subject to these IRS regulations for U.S. business entities like a U.S. LLC. The need for an EIN arises when opening a U.S. bank account, hiring U.S. employees, or meeting specific regulatory requirements, all common steps for businesses expanding into the U.S. market.

When You Need an EIN as a Wise Business User in Spain

An EIN is mandatory for several U.S. business activities, even for non-residents operating through a U.S. entity. If you have formed a U.S. LLC or corporation, you will require an EIN to operate legally. This is particularly true if your U.S. business entity is subject to IRS reporting requirements, such as filing Form 5472 for foreign-owned U.S. disregarded entities or corporations. Furthermore, opening a dedicated U.S. bank account for your business is nearly impossible without an EIN. Many U.S. banks, including services like Mercury, Relay, and Brex, require this federal tax ID as proof of your business's legitimacy. Even if your U.S. LLC has no U.S. operations, an EIN is often needed to establish credibility and facilitate financial transactions. Hiring employees within the U.S. also necessitates obtaining an EIN for payroll tax purposes.

Required Documents for Your EIN Application

Applying for an EIN as a non-resident business owner involves specific documentation. The core form is the IRS Form SS-4, Application for Employer Identification Number. You must complete this form accurately, paying close attention to line 7b, where you indicate your status as a foreign applicant. Do not use a Social Security Number (SSN) field if you do not have one; instead, write 'Foreign'. You will also need a copy of the passport of the responsible party applying for the EIN. If you have formed a U.S. LLC, your business formation documents, such as the Articles of Organization, will be necessary. Some applicants may also need to provide proof of a U.S. business address, which can sometimes be a mail-forwarding service if you do not have a physical presence in the U.S. Ensure all names and entity details match precisely across all submitted documents to avoid processing delays.

The EIN Application Process for Non-Residents

The process for obtaining an EIN as a non-resident business owner, including Wise business users in Spain, differs significantly from that of U.S. residents. Since you likely do not have an SSN or ITIN, you cannot use the IRS's online application portal. The standard method involves submitting Form SS-4 to the IRS via fax or mail. This method typically results in a processing time of 3–5 weeks. The IRS will fax or mail the EIN confirmation (CP-575) back to you. It is vital to ensure your fax number or mailing address is correctly listed on the form. The IRS operates on business days, so weekends and federal holidays will extend the overall timeline. Confirming the exact processing window with the IRS directly is advisable, as timelines can fluctuate based on application volume.

Common Mistakes for Wise Business Users in Spain

Wise business users in Spain often make specific errors during the EIN application process. A frequent mistake is attempting to use the online application system, which requires an SSN or ITIN, leading to an immediate rejection for foreign applicants. Another common pitfall is incorrectly filling out line 7b of Form SS-4. You must explicitly state 'Foreign' if you do not possess a U.S. TIN, rather than leaving it blank or entering unrelated information. Mismatched names between your passport, business formation documents, and the SS-4 can also cause significant delays or rejections. Ensure consistency in the legal name of the responsible party and the business entity. Lastly, failing to provide a clear and valid contact number or fax number on the form can hinder the IRS's ability to communicate any issues, further extending the process.

The Certified Acceptance Agent (CAA) Advantage

For non-residents applying for an EIN, using a Certified Acceptance Agent (CAA) can significantly streamline the process. As a CAA, itin.net can authenticate your identity and the information on your Form SS-4 before it is submitted to the IRS. This pre-verification step reduces the likelihood of errors and ensures your application meets IRS standards. While the IRS typically processes non-resident applications via fax or mail in 3–5 weeks, a CAA can often facilitate an expedited process, potentially reducing the timeline to 3–5 business days. This is because the CAA acts as an intermediary, vouching for the applicant's legitimacy. Working with a CAA like itin.net means you have expert guidance throughout the application, minimizing the risk of common mistakes and accelerating the delivery of your EIN confirmation letter.

Next Steps After Obtaining Your EIN

Once you receive your EIN confirmation (CP-575), your business is officially recognized by the IRS for tax purposes. The immediate next step for most Wise business users in Spain is to open a U.S. bank account. With your EIN and formation documents, you can now proceed to establish a U.S. business bank account, which is essential for managing finances, receiving payments, and maintaining clear separation between personal and business funds. If you formed a U.S. LLC, remember to comply with annual reporting requirements, such as filing Form 5472 if applicable. Review the pricing for EIN services on the itin.net website to understand the investment in streamlining this process. For personalized assistance tailored to your specific situation, consider contacting itin.net for expert guidance.

Practical tips

  • Ensure the name of the responsible party on Form SS-4 exactly matches their passport.
  • Clearly write 'Foreign' on line 7b of Form SS-4 if you do not have an SSN or ITIN.
  • Use a reliable mail-forwarding service if you need a U.S. business address for Form SS-4.
  • Double-check the fax number or mailing address provided on Form SS-4 for IRS correspondence.
  • If forming a U.S. LLC, ensure your Operating Agreement accurately reflects the EIN application details.

Frequently asked questions

Can I apply for an EIN online from Spain using my Wise account?

No, as a non-resident without a U.S. Taxpayer Identification Number (SSN or ITIN), you cannot use the IRS online portal to apply for an EIN. You must submit Form SS-4 via fax or mail, or through a Certified Acceptance Agent (CAA).

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

The standard IRS processing time for non-resident EIN applications submitted via fax or mail is typically 3–5 weeks. Using a Certified Acceptance Agent (CAA) can potentially expedite this to 3–5 business days.

What U.S. business address should I use on Form SS-4 if I am in Spain?

You can use a mail-forwarding service address if you do not have a physical U.S. business address. Ensure this address is clearly indicated on your Form SS-4 and that you have arrangements for mail forwarding.

Do I need an ITIN before applying for an EIN?

No, you do not need an ITIN to apply for an EIN. However, if you are a non-resident without an SSN or ITIN, you cannot use the online IRS application and must follow the non-resident application process.

What is the difference between an EIN and a U.S. business registration number?

An EIN is a federal tax identification number issued by the IRS for tax purposes. A U.S. business registration number is typically issued by a state when you form your business entity (like a U.S. LLC) and is for state-level compliance.

Can I use my Wise account details on Form SS-4?

You should not use your Wise account details as your business address or contact information on Form SS-4 unless specifically instructed by the IRS for a particular scenario. Use your official business formation address and contact details.

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