Skip to main content
itin.net
U.S. Bank Account guide for angel investors based in Portugal
Banking15 min read

U.S. Bank Account for angel investors from Portugal

Angel investors in Portugal can open a U.S. bank account remotely. Learn the requirements, process, and common pitfalls for Portuguese investors.

Reviewed by , ITIN Specialist at itin.net.

U.S. Bank Account Needs for Portuguese Angel Investors

Angel investors based in Portugal face a distinct challenge when seeking to invest in U.S. startups. While many non-residents can open a U.S. bank account, the specific needs of angel investors often involve more complex documentation and reporting requirements. For instance, receiving distributions from U.S. venture capital funds, managing U.S.-based investment vehicles, or preparing for U.S. tax obligations related to capital gains or dividends can necessitate a dedicated U.S. dollar account. The Portugal–U.S. tax treaty may offer some relief, but understanding where U.S. financial institutions require a U.S. tax identification number, such as an ITIN, is critical. Many U.S. banks have stringent Know Your Customer (KYC) and Anti-Money Laundering (AML) regulations that make opening accounts for non-residents difficult, especially without a U.S. physical address or established U.S. business entity. This friction point is where specialized services become essential for Portuguese angel investors looking to streamline their U.S. investment activities.

When a U.S. Bank Account Becomes Necessary

A U.S. bank account is often triggered by the mechanics of U.S. startup investment and the associated regulatory landscape. If you are actively participating in U.S. startup funding rounds, especially through platforms or syndicates that require U.S. dollar transactions, a U.S. account simplifies the process. Many U.S. startups prefer or require payments in USD. Furthermore, if you are receiving dividends, interest, or capital gains from U.S. investments, a U.S. bank account can facilitate these inflows and simplify tax reporting. For angel investors who might eventually need to file U.S. tax returns (such as Form 1040-NR if U.S. effectively connected income is generated) or specific informational returns like Form 5472 for foreign-owned U.S. entities, a U.S. bank account becomes a practical necessity. Even if your U.S. investment activity is currently passive, planning for future needs by establishing a U.S. bank account can prevent delays and complications down the line.

Required Documentation for Non-Residents

Opening a U.S. bank account as a non-resident, particularly for business purposes, requires specific documentation. For a business account, you will typically need an EIN (Employer Identification Number) from the IRS. This is obtained by filing Form SS-4. You'll also need formation documents for your U.S. entity, such as Articles of Organization if you've formed a U.S. LLC, or similar corporate documents for a U.S. corporation. Personal identification is also mandatory; this usually includes a valid passport and sometimes a second form of ID. Proof of residential address, both in Portugal and potentially for your U.S. entity if applicable, is required, often a utility bill or bank statement. Some financial institutions may also request a Certificate of Good Standing or a business license. The exact requirements can vary significantly between banks and fintech providers, so it's essential to verify the specific list with your chosen institution or service provider.

The Remote U.S. Bank Account Application Process

The process for opening a U.S. bank account remotely typically begins with selecting a financial institution or service that supports non-resident applications. This is a crucial first step, as most major U.S. banks do not offer this service. Once you have identified a suitable provider, you will complete their specific Know Your Customer (KYC) and Anti-Money Laundering (AML) application. This involves submitting all the required documentation, such as your EIN confirmation letter, entity formation documents, passport, and proof of address. If you are opening a business account and do not yet have an EIN, you will need to obtain one first. The application review process by the bank can take several business days. Upon approval, you will typically receive your account details and can then arrange for your debit card to be mailed. The entire process, from initial application submission to having an active debit card, usually takes between 5 to 10 business days, assuming all documentation is complete and accurate.

Common Pitfalls for Portuguese Angel Investors

Portuguese angel investors often encounter specific hurdles when attempting to open a U.S. bank account. A primary mistake is applying to traditional U.S. banks that explicitly decline non-resident applications, leading to wasted time and frustration. Many applicants fail to secure an EIN before attempting to open a business bank account, which is a non-negotiable requirement for most U.S. financial institutions. Missing or incomplete documentation is another frequent issue; for example, not having the correct formation documents for a U.S. entity or providing insufficient proof of address. Some investors underestimate the importance of having a U.S. tax identification number (like an ITIN) for certain types of U.S. investments or distributions, which can complicate reporting and compliance. Finally, attempting to open an account without understanding the bank's specific KYC/AML requirements can lead to rejections or requests for additional, hard-to-obtain information.

The Certified Acceptance Agent (CAA) Advantage

For non-residents seeking an ITIN, a Certified Acceptance Agent (CAA) like itin.net offers a streamlined and secure process. A CAA is authorized by the IRS to assist applicants in obtaining an ITIN without needing to mail original identification documents to the IRS. This is particularly beneficial for individuals in Portugal who might find it cumbersome or risky to send passports and birth certificates overseas. The CAA authenticates your identity and verifies your supporting documentation in person (or remotely through secure, verified processes), then forwards the completed application package to the IRS. This significantly reduces the risk of document loss and speeds up the ITIN application process. While a CAA primarily assists with ITIN applications, their expertise in IRS procedures can also be indirectly helpful in understanding the documentation requirements for other U.S. financial services, including bank accounts.

Next Steps for Portuguese Angel Investors

After understanding the requirements and process for opening a U.S. bank account, the next logical step is to prepare your documentation. This includes gathering your Portuguese identification, any U.S. entity formation documents if applicable, and initiating the process to obtain an EIN if you intend to open a business account. For Portuguese angel investors who need an ITIN for tax filing or investment purposes, applying through a Certified Acceptance Agent can simplify that process. Reviewing the services offered by specialized providers like itin.net can help you navigate these requirements efficiently. You can explore our Basic Banking Setup or Full Banking Bundle options to see which best fits your needs, or contact us directly for personalized assistance.

Practical tips

  • Obtain an EIN for your U.S. entity before applying for a business bank account; most U.S. banks require it.
  • Ensure all your identification documents (passport, proof of address) are current and clearly legible.
  • If you plan to receive U.S. investment income, understand your U.S. tax obligations and whether an ITIN is required.
  • Research financial institutions that specifically cater to non-resident account openings; many large U.S. banks do not.
  • If you need an ITIN, use a Certified Acceptance Agent (CAA) to avoid mailing original documents to the IRS.

Frequently asked questions

Can I open a U.S. bank account from Portugal without visiting the U.S.?

Yes, many fintech companies and some traditional banks allow non-residents to open a U.S. bank account remotely from Portugal. You will need to provide specific documentation and complete their online application process.

Do I need an EIN to open a U.S. bank account as a Portuguese angel investor?

If you are opening a business bank account for a U.S. entity (like an LLC or corporation), an EIN is almost always required. For a personal account, an ITIN or SSN may be needed, but requirements vary by bank.

How long does it typically take to open a U.S. bank account from Portugal?

The process usually takes between 5 to 10 business days from the time you submit your complete application and documentation until your account is active and you can receive a debit card.

What if I don't have a U.S. address for my bank account?

Most banks that support non-residents understand you may not have a U.S. address. They typically accept your foreign (Portuguese) residential address and may have specific requirements for the business address if applicable.

Do I need an ITIN to open a U.S. bank account?

An ITIN is not always required to open a personal U.S. bank account, but it may be necessary for certain types of accounts or if you have U.S. tax reporting obligations. For business accounts, an EIN is generally mandatory.

How does the Portugal-U.S. tax treaty affect opening a U.S. bank account?

The tax treaty primarily affects withholding taxes on income earned in the U.S. by Portuguese residents. It does not directly influence the process of opening a bank account itself, but understanding treaty benefits is crucial for tax filings related to U.S. investments.

Ready to Apply for Your ITIN?

Our IRS-Certified Acceptance Agents make the process simple and remote — from anywhere in the world.

  • IRS Certified
  • 5–10 Business Days
  • Money-Back Guarantee