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EIN guide for Stripe account holders based in the United Kingdom
EIN15 min read

EIN for Stripe account holders from the United Kingdom

Learn how Stripe account holders in the UK can obtain a U.S. Employer Identification Number (EIN) to facilitate global payments and U.S. business operations. Understand the process, required documents, and common pitfalls.

Reviewed by , ITIN Specialist at itin.net.

Why Stripe Account Holders in the UK Need a U.S. EIN

Stripe account holders in the United Kingdom often encounter a roadblock when trying to expand their global payment processing capabilities or establish a U.S. business presence. Stripe itself, while global, frequently requires a U.S. entity, which in turn necessitates a U.S. Employer Identification Number (EIN) for account setup and compliance. This is particularly true for businesses aiming to access U.S. markets, integrate with U.S.-based financial services, or operate under a U.S. legal structure like a U.S. LLC. Without this federal tax ID, U.S. bank account opening, which is often a prerequisite for full Stripe functionality or for managing U.S. revenue streams, becomes nearly impossible. The friction point is clear: you need a U.S. business foundation to fully leverage Stripe’s global reach, and that foundation starts with an EIN. This is distinct from a UK company that simply wants to accept international payments; this need arises when a U.S. business structure or financial integration is required by Stripe or other U.S. service providers.

When You Are Required to Obtain an EIN

For Stripe account holders based in the United Kingdom, obtaining a U.S. EIN is typically required when establishing a U.S. business entity, such as a U.S. LLC or C-Corp. Stripe's platform often mandates a U.S. tax ID for businesses operating under a U.S. legal structure, even if the beneficial owners reside outside the U.S. This requirement stems from U.S. federal regulations and Stripe's own compliance protocols. Beyond Stripe, a U.S. EIN is essential if you plan to open a U.S. bank account, hire employees within the United States, or file U.S. federal taxes. For many UK-based founders, the motivation is to create a U.S. entity, often through services like Stripe Atlas or a direct U.S. LLC formation, to simplify U.S. market entry and payment processing. Without an EIN, these fundamental business operations within the U.S. framework are inaccessible. The IRS requires an EIN for any business that operates as a corporation or partnership, has employees, or files certain tax returns.

Required Documents for EIN Application

To apply for a U.S. EIN, non-U.S. residents, including those in the United Kingdom, will need to submit specific documentation to the IRS. The primary form is IRS Form SS-4, Application for Employer Identification Number. This form requires detailed information about your U.S. business entity, including its legal name, address, entity type, and the name and identifying number of the responsible party. For non-U.S. residents applying for an EIN, the responsible party will typically use their foreign passport number. You must also provide U.S. business formation documents if your entity has already been established. For entities like a U.S. LLC, this would include your Articles of Organization and Operating Agreement. If you do not have a U.S. physical address, you can use a mail forwarding service address. The IRS will also need to verify the identity of the responsible party, which is usually done through their passport. This documentation package is crucial for a successful and timely application process.

The EIN Application Process and Timeline for UK Residents

Applying for an EIN as a non-U.S. resident, including those in the United Kingdom, involves a different process and timeline compared to U.S. residents. U.S. residents can typically apply online and receive an EIN within 1–2 business days. However, non-residents cannot use the online portal and must apply via fax or mail, or through a Certified Acceptance Agent (CAA). The standard processing time for applications submitted by fax or mail is considerably longer, often taking 3–5 weeks. This involves mailing or faxing the completed Form SS-4 to the IRS. The IRS will then review the application and issue the EIN. For those needing a faster turnaround, engaging a Certified Acceptance Agent (CAA) is the most efficient route. A CAA can verify your identity and documentation, and submit the application on your behalf, often resulting in an EIN within 3–5 business days. This expedited process is a key benefit for businesses operating on tight timelines.

Common Mistakes for UK Stripe Account Holders

Stripe account holders from the United Kingdom often make specific errors when applying for an EIN, largely due to unfamiliarity with U.S. tax procedures. A common pitfall is incorrectly filling out line 7b of Form SS-4. If the responsible party does not have a U.S. Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN), this field should be marked 'Foreign' and not left blank or filled with a non-U.S. identification number. Another mistake is selecting the wrong entity type on the SS-4; ensure your entity type (LLC, C-Corp, etc.) accurately reflects your U.S. business formation. Furthermore, attempting to use the online application portal when the responsible party lacks a U.S. SSN or ITIN will result in an automatic rejection. This is why understanding the non-resident application process, which excludes the online option, is critical. Misrepresenting your business structure or applicant details can lead to significant delays or denial of your EIN application.

How a Certified Acceptance Agent (CAA) Streamlines the Process

For UK-based Stripe account holders, applying for an EIN through a Certified Acceptance Agent (CAA) offers significant advantages over the traditional fax or mail method. A CAA, such as itin.net, acts as an intermediary between you and the IRS. The CAA is authorized by the IRS to verify the identity of the responsible party and review the Form SS-4 application before it is submitted. This pre-verification step reduces the likelihood of errors and omissions that could lead to delays or rejections. By using a CAA, you bypass the lengthy mail or fax processing times. The application is typically submitted electronically or via expedited fax by the CAA, resulting in an EIN issuance within 3–5 business days, a stark contrast to the 3–5 weeks required for direct non-resident applications. This efficiency is invaluable for businesses that need to open a U.S. bank account or activate their Stripe account promptly.

Next Steps After Obtaining Your EIN

Once you have successfully obtained your U.S. EIN, your next steps involve setting up the necessary infrastructure to operate your U.S. business and fully utilize your Stripe account. The most immediate priority for most UK founders is opening a U.S. bank account. Many U.S. banks require an EIN and U.S. business formation documents to open an account for a foreign-owned entity. Services like Mercury, Relay, or Brex are popular options for international founders. With your EIN and U.S. bank account in place, you can then complete your Stripe account setup or upgrade. You will also need to ensure compliance with U.S. tax filing requirements, which may include filing Form 5472 for information reporting if your entity is a U.S. LLC with a single foreign owner. Reviewing the specific pricing for EIN services at itin.net or contacting us directly for personalized assistance can help ensure a smooth transition into operating your U.S. business.

Practical tips

  • Ensure the legal name of your U.S. business entity exactly matches your formation documents and any other IRS correspondence.
  • When filling out Form SS-4, clearly indicate 'Foreign' in line 7b if the responsible party has no U.S. SSN or ITIN.
  • Use a reliable U.S. mailing address or a mail forwarding service for your business address on Form SS-4 if you do not have a physical U.S. presence.
  • Double-check all entity details, including the exact legal name and entity type, to prevent application delays or rejections.
  • Engage a Certified Acceptance Agent (CAA) if you require an EIN within a 3-5 business day timeframe, significantly faster than direct IRS processing for non-residents.

Frequently asked questions

Can I apply for an EIN online from the United Kingdom?

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

How long does it take to get an EIN from the UK?

Direct applications via fax or mail can take 3–5 weeks. Using a Certified Acceptance Agent (CAA) like itin.net can expedite this process to 3–5 business days.

Do I need a U.S. business address to get an EIN?

Yes, you need a U.S. business address listed on Form SS-4. This can be a physical address, a registered agent's address, or a mail forwarding service address.

What is the difference between an ITIN and an EIN?

An ITIN (Individual Taxpayer Identification Number) is for individuals who need to file U.S. taxes but don't have an SSN. An EIN (Employer Identification Number) is a tax ID for businesses, not individuals.

Can I use my UK company name for a U.S. EIN application?

You need to form a U.S. business entity (e.g., a U.S. LLC) first. The EIN application is for this U.S. entity, which will have its own U.S. legal name, distinct from your UK company name, though often related.

Is a U.S. LLC formation required before applying for an EIN?

Typically, yes. You generally need to have your U.S. business entity legally formed and have its formation documents before applying for an EIN for that entity. This confirms the legal existence of the business.

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