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EIN application reference for Amazon KDP authors based in Vietnam
EIN12 min read

An EIN Guide for Amazon KDP authors from Vietnam

Amazon KDP authors in Vietnam need an EIN for U.S. tax compliance. Learn why, how to apply, and common pitfalls to avoid with this guide.

Reviewed by , ITIN Specialist at itin.net.

Why Amazon KDP Authors in Vietnam Need an EIN

Amazon KDP authors based in Vietnam face a specific challenge with U.S. taxation due to the lack of a tax treaty between Vietnam and the United States. This means that without proper documentation, U.S. royalties are subject to a default 30% withholding tax. While many authors initially focus on obtaining an ITIN to reduce this withholding via Form W-8BEN, an Employer Identification Number (EIN) becomes essential if you operate your KDP business as a U.S. entity, such as a U.S. LLC. Establishing a U.S. LLC offers significant advantages, including potentially lower withholding rates and simplified U.S. tax filing. However, forming a U.S. LLC necessitates obtaining an EIN, which serves as the federal tax ID for your U.S. business. Without this EIN, you cannot open a U.S. business bank account, a crucial step for managing royalties and business expenses efficiently. The IRS requires an EIN for any U.S. entity, distinguishing it from an individual's tax ID like an ITIN. For Amazon KDP authors in Vietnam, this often means navigating the process of forming a U.S. entity and then applying for the corresponding EIN, even though you are physically located outside the U.S.

When an EIN is Required for Amazon KDP Authors

An EIN is required for Amazon KDP authors in Vietnam primarily when you choose to structure your publishing business as a U.S. entity. The most common structure for non-U.S. residents engaging in online business activities like publishing through Amazon KDP is a U.S. Limited Liability Company (LLC). Forming a U.S. LLC is often recommended to separate personal and business liabilities and to potentially benefit from U.S. tax regulations. Once your U.S. LLC is formed, the IRS mandates that you obtain an EIN. This nine-digit federal tax identification number is distinct from your personal ITIN or Vietnamese tax ID. It's used for all federal tax purposes, including filing tax returns and reporting income. Additionally, U.S. financial institutions require an EIN to open a business bank account, which is indispensable for receiving royalty payments from Amazon and managing business expenses. Without an EIN, opening a U.S. business bank account, such as with providers like Mercury, Relay, or Brex, is typically not possible. Therefore, if you are serious about operating your Amazon KDP venture as a formal U.S. business, securing an EIN is a mandatory step.

Required Documents for EIN Application

Applying for an EIN as a non-resident Amazon KDP author involves specific documentation. The primary form is the IRS Form SS-4, Application for Employer Identification Number. This form requires detailed information about your U.S. business entity. Key information includes the legal name of your U.S. LLC, the trade name (if different), the business mailing address (which can be a U.S. virtual office or mail forwarding service), and the name and identification number of the responsible party. For non-U.S. residents applying for an EIN for a U.S. entity, the responsible party is typically the individual who controls, manages, or directs the entity and its tax affairs. You will need to provide their name and identify their tax identification number. If the responsible party does not have a U.S. Social Security Number (SSN) or ITIN, you must write 'Foreign' in the SSN field on line 7b of Form SS-4. Additionally, you may need to provide a copy of your U.S. LLC formation documents, such as your Certificate of Formation or Articles of Organization, depending on how you file. The passport of the responsible party is often requested as proof of identity, especially when applying through a service like itin.net.

The EIN Application Process for Non-Residents

The process for obtaining an EIN differs significantly for U.S. residents versus non-residents. U.S. residents can typically apply online via the IRS portal, receiving their EIN within minutes. However, non-residents, including Amazon KDP authors in Vietnam, cannot use the online application, as it requires a valid U.S. SSN or ITIN for the responsible party. The primary method for non-residents is to mail or fax the completed IRS Form SS-4 to the IRS. This method usually takes 3–5 weeks for processing. The IRS will mail the EIN confirmation letter (CP-575) to the U.S. business address listed on the application. An alternative, and often faster, route for non-residents is to use the services of a Certified Acceptance Agent (CAA). A CAA is an individual or entity authorized by the IRS to assist applicants in obtaining an EIN. When you apply through a CAA, they act as an intermediary, verifying your documentation and submitting the application on your behalf. This process can expedite the issuance of the EIN, often reducing the timeline to 3–5 business days, and the CAA can often provide the EIN confirmation immediately after IRS approval.

Common Mistakes for Amazon KDP Authors

Amazon KDP authors in Vietnam can encounter specific application errors when applying for an EIN. A frequent mistake is attempting to use the online IRS portal. This portal is strictly for applicants with an SSN or ITIN, and attempting to use it without one will result in an error. Another common pitfall is incorrectly filling out line 7b of Form SS-4. If the responsible party does not have an SSN or ITIN, you must write 'Foreign' in this field. Leaving it blank or entering incorrect information can lead to application rejection. Choosing the wrong entity type on the SS-4 form is also a concern; ensure you correctly identify your business as an LLC or Corporation as applicable. Furthermore, misunderstanding the role of the responsible party can cause issues. The responsible party is the individual with ultimate authority over the business's tax matters, not necessarily an employee or a registered agent. For authors in Vietnam, ensuring your U.S. business address is valid and capable of receiving mail is critical, as the IRS sends the official EIN confirmation by mail.

The Certified Acceptance Agent (CAA) Advantage

Using a Certified Acceptance Agent (CAA) significantly streamlines the EIN application process for non-residents, including Amazon KDP authors from Vietnam. As a CAA, itin.net can verify your identity and your business documentation directly. This means we act as your trusted intermediary with the IRS, eliminating the need for you to mail sensitive documents or wait weeks for a response. The typical timeline for applying through a CAA is much faster, often resulting in an EIN within 3–5 business days, compared to the 3–5 weeks required for mail or fax applications. This speed is crucial for authors who need to open a U.S. bank account promptly to receive royalty payments and manage their business finances. Moreover, working with a CAA provides an added layer of assurance that your application is completed correctly, minimizing the risk of errors that could cause delays or rejections. This service is particularly valuable for those unfamiliar with U.S. tax forms and procedures.

Next Steps After Obtaining Your EIN

Once you receive your EIN confirmation from the IRS, the immediate next step is to open a U.S. business bank account. This is essential for receiving royalty payments from Amazon KDP and for any other business transactions. Most U.S. banks require an EIN and formation documents to open an account for a U.S. LLC. Services like Mercury, Relay, or Brex are popular choices for non-residents. With your EIN and U.S. bank account established, you can then proceed with filing your U.S. tax obligations. For Amazon KDP authors in Vietnam, this typically involves filing Form 1040-NR (U.S. Nonresident Alien Income Tax Return) if you have U.S.-sourced income beyond royalties subject to withholding, and potentially Form 5472 (Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign Corporation Engaged in a U.S. Trade or Business) if your U.S. LLC has only one owner who is a foreign person. It's also vital to ensure your Form W-8BEN is correctly updated with Amazon to reflect your reduced withholding rate, often facilitated by having an ITIN. Review the pricing for itin.net's EIN services or contact us directly to discuss your specific situation and how we can assist you.

Practical tips

  • Write 'Foreign' in the SSN field (line 7b) on Form SS-4 if the responsible party has no U.S. SSN or ITIN.
  • Use a reliable U.S. business address or mail forwarding service for your registered address and correspondence.
  • Ensure the legal name on your EIN application matches exactly with your U.S. LLC formation documents and your passport.
  • Double-check that you have correctly identified your business entity type (e.g., LLC) on Form SS-4.
  • If you need an ITIN to claim treaty benefits on royalties, apply for it before or concurrently with your EIN application if the responsible party does not already have one.

Frequently asked questions

Can I use my Vietnamese business registration to get an EIN?

No, an EIN is a U.S. federal tax ID for U.S. businesses. If you form a U.S. LLC, you will use the U.S. LLC's formation documents, not your Vietnamese business registration, for the EIN application.

Do I need an ITIN to get an EIN for my U.S. LLC?

The responsible party for the EIN application needs either an SSN or an ITIN to apply online. However, non-residents without an SSN or ITIN can still obtain an EIN by mail, fax, or through a Certified Acceptance Agent (CAA). If the responsible party is a U.S. person, they will need an SSN. If they are a non-U.S. person, they can apply without an ITIN via the non-online methods.

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

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

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 do not have an SSN. An EIN (Employer Identification Number) is a tax ID for businesses, including U.S. LLCs and corporations.

Can Amazon KDP authors in Vietnam use itin.net for EIN application?

Yes, Amazon KDP authors in Vietnam can use itin.net, a Certified Acceptance Agent (CAA), to apply for an EIN for their U.S. LLC. This service helps expedite the process and ensures correct application submission.

What happens if I don't get an EIN for my U.S. LLC?

Without an EIN, you cannot open a U.S. business bank account, which is necessary for receiving royalty payments from Amazon KDP. You also cannot file U.S. federal taxes for your business entity, leading to non-compliance.

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