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Illustration for an EIN article aimed at foreign contractors based in Denmark
EIN15 min read

How foreign contractors from Denmark Get an EIN

Foreign contractors in Denmark need an EIN for U.S. business. Learn the process, required documents, and common pitfalls for obtaining your U.S. federal tax ID.

Reviewed by , ITIN Specialist at itin.net.

Foreign Contractors in Denmark Face Specific EIN Hurdles

Foreign contractors operating from Denmark often encounter unique challenges when applying for an Employer Identification Number (EIN). Unlike U.S. residents who can apply online, non-residents without a U.S. Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN) face a more complex application process. The IRS mandates specific procedures for non-residents, primarily involving fax or mail submissions of Form SS-4, which can significantly extend processing times. This is the primary friction point for Danish contractors aiming to establish a U.S. business presence or fulfill contractual obligations requiring a U.S. tax ID. Understanding these distinctions is key to a smooth application and avoiding unnecessary delays or rejections. The goal is to secure a U.S. federal tax ID that facilitates U.S. business operations without requiring a physical presence in the United States.

When You Need an EIN as a Foreign Contractor in Denmark

An EIN is a federal tax identification number issued by the IRS to business entities. For foreign contractors in Denmark, an EIN becomes necessary in several key scenarios. Primarily, if you are operating as a U.S. entity, such as a U.S. LLC or C-Corp, you will require an EIN to function legally. This is often a prerequisite for opening a U.S. bank account, which is frequently requested by U.S. clients or necessary for managing business finances efficiently. Furthermore, if your business structure requires you to file U.S. tax returns, like Form 5472 for certain foreign-owned U.S. disregarded entities or corporations, an EIN is mandatory. Engaging U.S. employees or operating a business that requires specific federal or state licenses will also trigger the need for an EIN. The requirement often stems from the U.S. entity structure you choose or the nature of your financial transactions with U.S. entities.

Required Documents for Your EIN Application

To apply for an EIN as a foreign contractor from Denmark, you will need specific documentation. The core form is IRS Form SS-4, Application for Employer Identification Number. This form requires detailed information about your business, including its legal name, trade name (if applicable), business address, responsible party's information, and entity type. For foreign applicants without an SSN or ITIN, line 7b of Form SS-4 must be completed by writing 'Foreign' in the SSN field. You will also need a copy of the responsible party's government-issued identification, typically a passport. If you are operating as a U.S. entity like a U.S. LLC, you must also provide formation documents, such as your Articles of Organization and Operating Agreement. A U.S. mailing address or a designated mail forwarding service address is also required on the application. Ensure all document details are accurate and consistent to prevent application delays.

The EIN Application Process for Non-Residents

The process for obtaining an EIN as a foreign contractor from Denmark differs significantly from that of U.S. residents. Since you likely do not have an SSN, you cannot apply online through the IRS portal. Instead, you must submit Form SS-4 via fax or mail. The fax number for international applicants is +1 855 215 2702. Once the IRS receives your application by fax, they typically review it within 3–5 business days, though it can sometimes take longer. If you mail your application, processing can take between 4–5 weeks. It is critical to fill out Form SS-4 completely and accurately. Any missing information or errors can lead to your application being rejected or returned, adding further delays to the process. The IRS will issue your EIN via mail or fax, depending on the contact information provided on your application.

Common Mistakes for Danish Contractors Applying for EIN

Foreign contractors from Denmark often make specific mistakes when applying for an EIN. A very common error is incorrectly filling out line 7b of Form SS-4. Many applicants leave it blank or enter incorrect information when they do not have an SSN or ITIN. The IRS explicitly instructs applicants to write 'Foreign' in this field. Another frequent mistake is providing a U.S. business address that is not a physical location, such as a P.O. Box, unless it is part of a mail forwarding service. The IRS requires a physical U.S. address or a designated address for receiving mail. Failing to include a complete and accurate U.S. mailing address can cause application rejection. Additionally, selecting the wrong business entity type on Form SS-4 can lead to complications. Ensure your entity type aligns with your business structure and U.S. formation documents. Confirming these details before submission can prevent delays.

Benefits of Using a Certified Acceptance Agent (CAA)

For foreign contractors in Denmark, applying for an EIN can be streamlined by using a Certified Acceptance Agent. A Certified Acceptance Agent (CAA) is an individual or entity authorized by the IRS to assist non-residents in obtaining an EIN. These agents can verify your identity and the information on your Form SS-4 application before it is submitted to the IRS. This verification process significantly reduces the risk of errors and omissions that could lead to application rejection. While direct application via fax or mail can take 3–5 weeks, working with a CAA can expedite the process, sometimes to within a few business days, especially if using expedited channels. This path offers greater certainty and a faster turnaround for obtaining your EIN, crucial for time-sensitive business needs. itin.net is a trusted CAA partner.

Next Steps After Securing Your EIN

Once you have successfully obtained your EIN, you can proceed with establishing your U.S. business operations. The immediate next step is often opening a U.S. bank account, which is essential for managing your U.S. income and expenses separately. With your EIN and bank account in place, you can begin invoicing U.S. clients and receiving payments. Depending on your business structure and activities, you may need to file U.S. tax returns, such as Form 1040-NR for individuals or corporate returns for U.S. entities. Ensure you understand your ongoing U.S. tax obligations, including any potential reporting requirements like Form 5472. For those needing an ITIN to complement their EIN application or for other purposes, services are available. Reviewing the pricing for EIN services or contacting itin.net for personalized assistance is a prudent next step to ensure compliance and efficiency.

Practical tips

  • Write 'Foreign' on line 7b of Form SS-4 when the responsible party does not have an SSN or ITIN.
  • Ensure your U.S. business address on Form SS-4 is a physical location or a valid mail forwarding service address, not a P.O. Box.
  • Double-check that the entity type selected on Form SS-4 accurately reflects your U.S. business formation documents.
  • If you are operating as a U.S. LLC, have your Articles of Organization and Operating Agreement readily available for reference during the application.
  • Consider using a Certified Acceptance Agent (CAA) to verify your application and expedite the EIN issuance process, especially if you are based in Denmark.

Frequently asked questions

Can I apply for an EIN online from Denmark?

No, as a foreign contractor from Denmark without a U.S. Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN), you cannot apply for an EIN online. You must submit Form SS-4 via fax or mail to the IRS.

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

Applying via fax can take 3–5 business days, while applying via mail can take 4–5 weeks. Using a Certified Acceptance Agent, like itin.net, can often expedite this process to a few business days.

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

You need a U.S. mailing address. This can be a physical U.S. business address, or if you do not have one, you can use a mail forwarding service address. A P.O. Box is generally not accepted unless it's part of a forwarding service.

Do I need an ITIN to get an EIN?

No, an ITIN is not required to obtain an EIN. However, if you are applying as an individual and do not have an SSN, you must indicate 'Foreign' on line 7b of Form SS-4. An ITIN may be needed for other U.S. tax filings.

What happens if my EIN application is rejected?

If your application is rejected, the IRS will typically return it with a notice explaining the errors. You will need to correct the issues and resubmit the application, which will further delay the process. Common reasons for rejection include incomplete information or incorrect entity type selection.

Does the Denmark–U.S. tax treaty affect my EIN application?

The Denmark–U.S. tax treaty primarily affects income tax and withholding rates. It does not directly impact the process of applying for an EIN, which is a federal tax identification number for business operations. However, having an EIN may be necessary to claim treaty benefits on certain U.S. income.

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