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EIN application reference for remote employees of US companies based in Taiwan
EIN15 min read

An EIN Guide for remote employees of US companies from Taiwan

Remote employees in Taiwan hired by U.S. companies often need an EIN for tax and banking. Understand the application process, required documents, and common pitfalls.

Reviewed by , ITIN Specialist at itin.net.

Remote Employees in Taiwan Face Unique EIN Hurdles

Remote employees in Taiwan working for U.S. companies often encounter a specific roadblock when setting up their U.S. business operations: obtaining an Employer Identification Number (EIN). Unlike U.S. residents, who can typically apply online and receive an EIN within 1-2 business days, non-residents without a U.S. taxpayer identification number face a longer, more complex process. This delay can impede opening necessary U.S. bank accounts or fulfilling specific tax reporting requirements, such as those related to U.S. business activities or foreign-owned entities. The primary challenge stems from the IRS's online application portal, which requires a valid Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN) for the responsible party. Since many remote employees in Taiwan do not possess either, they cannot use this expedited method. This necessitates a manual application process, usually via fax or mail, which significantly extends processing times and introduces additional administrative steps. Understanding these distinctions is critical for remote employees to plan effectively and avoid operational delays.

When You Need an EIN as a Remote Employee

An EIN is a federal tax identification number issued by the IRS to business entities for tax administration purposes. For remote employees in Taiwan working for U.S. companies, an EIN may become necessary under several circumstances. One common trigger is when the U.S. company requires you to operate as an independent contractor rather than a direct employee, often for payroll and tax efficiency. In such cases, the U.S. company may request you obtain an EIN to establish your business identity for payment processing. Another scenario involves setting up a U.S. bank account. Many U.S. financial institutions, including online platforms like Mercury, Relay, or Brex, require an EIN to open a business account, even if you are operating as a sole proprietor or independent contractor under a U.S. company's umbrella. This is particularly true if you are invoicing the U.S. company through your own entity or if the business structure necessitates it for compliance. Furthermore, if your role involves establishing a U.S. business presence or if you are required to file specific U.S. tax forms like Form 5472 (for foreign-owned U.S. disregarded entities), an EIN will be mandatory. The need for an EIN is directly tied to the operational and reporting requirements imposed by the U.S. company or U.S. tax law.

Required Documents for EIN Application

Applying for an EIN as a non-resident without a U.S. SSN or ITIN requires specific documentation to identify the responsible party and the U.S. business. The primary IRS form is Form SS-4, Application for Employer Identification Number. This form requires detailed information about your business, including its legal name, trade name (if different), mailing address, business location, entity type, and responsible party details. For the responsible party, who is the individual who has ultimate control over the entity or who is in charge of assets and funds, a government-issued identification document is necessary. This is typically a passport. If you are applying as an individual (e.g., sole proprietor or independent contractor), your passport serves as the primary identification. If you are applying on behalf of a U.S. entity, you may also need to provide business formation documents, such as Articles of Incorporation or a Certificate of Formation for a U.S. LLC. A crucial aspect for non-residents is providing a U.S. business address. This can be a physical U.S. address or a mail-forwarding service address. It does not need to be a physical office space, but it must be a valid U.S. address for IRS correspondence. Without these documents, your application cannot be processed.

The Non-Resident EIN Application Process

The process for obtaining an EIN as a remote employee in Taiwan without a U.S. SSN or ITIN differs significantly from the online application available to U.S. residents. You must file Form SS-4 manually, typically via fax or mail. After completing Form SS-4, you will fax it to the IRS at 855-641-0829 (international fax). If you prefer mail, you can send it to the IRS address specified in the Form SS-4 instructions for non-U.S. residents. The IRS will review your application. If approved, they will assign you an EIN and mail a confirmation letter, often referred to as CP-575, to the U.S. business address listed on your application. This entire process can take several weeks. While the IRS online portal offers same-day EINs for U.S. persons, non-residents should anticipate a processing time of approximately 3–5 weeks for faxed or mailed applications. This extended timeline is due to manual processing and verification by the IRS. It is essential to submit all required information accurately to avoid further delays or rejection of your application.

Common Mistakes for Taiwan-Based Remote Employees

Remote employees in Taiwan working for U.S. companies often make specific errors when applying for an EIN. A frequent mistake on Form SS-4 is incorrectly filling out line 7b, the SSN/ITIN field. Since you likely do not have a U.S. SSN or ITIN, you must write 'Foreign' in this box, not leave it blank or enter incorrect information. Another common pitfall is selecting the wrong entity type. If you are operating as an independent contractor or sole proprietor for the U.S. company, you might be applying as an individual, not a corporation or LLC, unless a separate U.S. entity has been formed. Misunderstanding the U.S. business address requirement is also prevalent; you must provide a legitimate U.S. mailing address, even if it's a mail-forwarding service. Using a personal Taiwanese address will lead to application rejection. Finally, attempting to use the online application portal without a U.S. SSN or ITIN will result in an automatic failure. You must use the fax or mail method. Confirming these details before submission can prevent significant delays.

The Certified Acceptance Agent (CAA) Path

A Certified Acceptance Agent (CAA) is an individual or entity appointed by the IRS to assist taxpayers in obtaining ITINs. While CAAs are primarily associated with ITIN applications, some may also offer services related to EIN applications for non-residents, particularly those who need to establish a U.S. business presence. The advantage of using a CAA, such as itin.net, for an EIN application lies in their expertise with IRS procedures and documentation. They can help ensure your Form SS-4 is completed accurately, reducing the risk of errors that lead to delays or rejections. CAAs can also assist with verifying your identification documents and, in some cases, may be able to submit the application on your behalf or expedite certain aspects of the process through their established channels. This can be particularly valuable for remote employees in Taiwan who are unfamiliar with U.S. tax forms and IRS protocols. While the core IRS process remains the same, a CAA provides a layer of support and accuracy that can streamline the application for individuals navigating these requirements from abroad. This service can save time and prevent costly mistakes.

Next Steps After Obtaining Your EIN

Once you have successfully obtained your EIN, the next steps involve utilizing it for its intended purpose. If the EIN was required for opening a U.S. bank account, you can now proceed with that process. Having an EIN is often a prerequisite for U.S. financial institutions to open accounts for non-residents, allowing you to receive payments from your U.S. employer or manage business finances effectively. If your EIN is related to specific tax filings, such as Form 5472 for reporting transactions with a foreign-owned disregarded entity, ensure you meet the filing deadlines. This typically involves filing the form annually. For remote employees operating as independent contractors, the EIN will be used on invoices and potentially on IRS forms like Form 1099-NEC if your U.S. client is required to issue one. If you are unsure about the implications of having an EIN for your specific situation or require assistance with the application process, reviewing pricing information for EIN services on itin.net or contacting their support team is advisable. They can provide further guidance tailored to your circumstances.

Practical tips

  • Write 'Foreign' in line 7b of Form SS-4 if you do not have a U.S. SSN or ITIN; do not leave it blank.
  • Use a U.S. mail-forwarding service for your business address if you do not have a physical U.S. location.
  • Ensure the legal name on Form SS-4 precisely matches your passport name to avoid identity verification issues.
  • If your U.S. company requires you to form a U.S. LLC, complete the LLC formation process before applying for the EIN.
  • Verify that the fax number you are using to submit Form SS-4 is the correct, current IRS number for international applicants.

Frequently asked questions

Can I apply for an EIN online from Taiwan?

No, as a non-resident without a U.S. SSN or ITIN, you cannot use the IRS online portal to apply for an EIN. You must use the fax or mail method by submitting Form SS-4.

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

For non-residents applying via fax or mail, the typical processing time for an EIN is 3–5 weeks. This is significantly longer than the 1–2 business days for U.S. residents applying online.

What is considered the 'responsible party' for an EIN application?

The responsible party is the individual who ultimately owns or controls the entity or who is responsible for the entity's funds and assets. For a sole proprietor or independent contractor, this is typically you. Your passport will be used for identification.

Can I use my Taiwanese address on Form SS-4?

No, you must provide a valid U.S. business address on Form SS-4. This can be a physical U.S. address or a mail-forwarding service address. A Taiwanese address will cause your application to be rejected.

Do I need an ITIN before applying for an EIN?

No, an ITIN is not strictly required to apply for an EIN as a non-resident. However, if you plan to use the IRS online application, you would need an ITIN. For the manual application (fax/mail), you simply write 'Foreign' in the SSN/ITIN field.

Will my U.S. employer help me get an EIN?

Some U.S. employers may assist with the EIN process, especially if they require you to operate as an independent contractor. However, the ultimate responsibility for the application and providing accurate information lies with you. It's advisable to confirm their level of support.

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