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ITIN15 min read

How Wise business users from Portugal Get an ITIN

Wise business users in Portugal often need an ITIN for U.S. tax filings. Learn the specific requirements, documentation, and application process to secure your ITIN efficiently.

Reviewed by , ITIN Specialist at itin.net.

Why Wise Business Users in Portugal Need an ITIN

Wise business users in Portugal often encounter situations requiring a U.S. Individual Taxpayer Identification Number (ITIN) due to U.S.-sourced income or U.S. tax filing obligations. This is particularly common when operating a U.S. LLC, even if managed remotely from Portugal. The U.S. Internal Revenue Service (IRS) mandates that individuals who must file U.S. taxes but cannot obtain a Social Security Number (SSN) must apply for an ITIN. For Wise business users, this scenario frequently arises when they establish a U.S. LLC and obtain an Employer Identification Number (EIN) for that entity, which then requires timely filings like Form 5472 for foreign-owned U.S. corporations. The digital nature of Wise facilitates global business operations, but it also means that U.S. tax compliance, including ITIN acquisition, becomes a necessary step for many. Without an ITIN, you cannot accurately report U.S. income or fulfill certain tax obligations, potentially leading to penalties and interest. The process involves submitting IRS Form W-7 along with supporting documentation to prove foreign status and identity.

Eligibility and Triggers for ITIN Application

Your eligibility for an ITIN is triggered by a U.S. tax filing requirement for which an SSN is not available. For Wise business users in Portugal, this most commonly occurs when you are required to file U.S. tax returns such as Form 1040-NR (U.S. Nonresident Alien Income Tax Return) or informational returns like Form 5472. Form 5472 is mandatory for certain foreign-owned U.S. entities, including U.S. LLCs, to report transactions with a related foreign person. If your U.S. LLC has an EIN and you are a foreign owner, you will likely need to file Form 5472 annually. The IRS requires you to have an ITIN to file Form 5472 unless you qualify for an exception. Another trigger can be receiving certain types of U.S.-sourced income that requires tax withholding, necessitating a U.S. tax return to claim refunds or report income accurately. The U.S. tax system is complex, and even passive income or specific business activities can create a filing obligation. It's vital to determine if your business structure and income streams necessitate this U.S. tax compliance. If you are unsure, consulting with a tax professional is recommended.

Required Documentation for ITIN Application

To apply for an ITIN, you must submit IRS Form W-7, Application for IRS Individual Taxpayer Identification Number. This form requires you to provide your full legal name, foreign address, and other personal details. Alongside the W-7, you must submit original or certified copies of identification documents. The IRS strongly prefers a valid passport as proof of identity and foreign status. If a passport is unavailable, other documents like a national identity card, birth certificate, or foreign driver's license may be accepted, but these generally require an additional identification document. For Wise business users in Portugal, ensuring your passport is current and that the name on it precisely matches the name on your W-7 is critical. You will also need to provide documentation supporting your reason for needing an ITIN. This typically means attaching a U.S. federal income tax return, or for certain exceptions, other specific IRS notices or forms. If you are applying based on a U.S. LLC and Form 5472, you will include a draft of that form with your W-7 application. Review the IRS instructions for Form W-7 for a comprehensive list of acceptable documents and specific requirements.

The ITIN Application Process Timeline

The ITIN application process has a standard timeline, though variations can occur. When you submit your application through a Certified Acceptance Agent (CAA), the process is significantly expedited. A CAA, like itin.net, can review your documentation, verify your identity, and forward your application directly to the IRS. This typically results in receiving your ITIN within 5–10 business days from the date the IRS receives your application. Applying directly to the IRS by mail can take much longer, often several weeks or even months, due to mail processing and verification times. Once the IRS processes your W-7 application, they will issue an ITIN, which is a 9-digit number. You will receive a notification letter from the IRS, typically CP-565, confirming your ITIN assignment. This entire process, from gathering documents to receiving your ITIN, can take anywhere from a few weeks to a couple of months depending on your chosen application method and IRS processing volumes. It's advisable to apply well in advance of any tax deadlines.

Common Mistakes for Wise Business Users in Portugal

Wise business users in Portugal often make specific errors when applying for an ITIN, stemming from the unique nature of their operations. A frequent mistake is submitting incomplete or inaccurate Form W-7. This includes missing required fields, incorrect personal information, or failing to sign the form. Another common pitfall is mailing original identification documents directly to the IRS when applying without a CAA. The IRS does not return original documents submitted directly, potentially causing significant inconvenience. For those with a U.S. LLC, failing to include a complete draft of Form 5472 or an associated U.S. tax return (like Form 1040-NR) with the W-7 is a frequent error. Incorrectly claiming treaty benefits on tax forms can also lead to rejection; Portugal has a tax treaty with the U.S., but specific articles and conditions must be met, and these should be correctly referenced. Ensure that the name on your W-7 exactly matches your passport and any other supporting documents to avoid mismatches. Confirming the correct mailing address for your application, whether to the IRS service center or via a CAA, is also essential.

Benefits of Using a Certified Acceptance Agent (CAA)

Applying for an ITIN through a Certified Acceptance Agent (CAA) offers distinct advantages for Wise business users in Portugal. As a CAA, itin.net can authenticate your original identification documents, such as your passport, on your behalf. This means you do not have to mail your original documents to the IRS, mitigating the risk of loss or delay. The CAA reviews your entire application package, including Form W-7 and supporting documentation, for completeness and accuracy before submitting it to the IRS. This pre-screening significantly reduces the chances of your application being rejected due to common errors. Because CAAs have a direct submission process with the IRS, applications submitted through them are typically processed much faster, often resulting in an ITIN within 5–10 business days. This speed is crucial for meeting tax deadlines or other time-sensitive requirements. Using a CAA streamlines the entire process, providing peace of mind and a higher likelihood of a successful and timely ITIN issuance.

Next Steps After ITIN Application

Once you have submitted your ITIN application, whether directly to the IRS or via a Certified Acceptance Agent, the next steps involve waiting for the IRS to process your request. You will receive your ITIN via mail in a notification letter from the IRS, typically CP-565. This ITIN is now your unique identifier for U.S. tax purposes. You can then use this ITIN to file your required U.S. tax returns, such as Form 1040-NR or Form 5472 if you operate a U.S. LLC. If you plan to open a U.S. bank account for your business, an ITIN might be required by some institutions. For instance, opening a U.S. bank account with providers like Mercury or Relay often requires either an SSN or an ITIN. Remember that your ITIN is for tax purposes only and does not authorize you to work in the U.S. or provide eligibility for Social Security benefits. If you've established a U.S. LLC, ensure all subsequent filings are completed accurately using your new ITIN. For those needing further assistance with U.S. tax compliance or business setup, exploring services like itin.net for ITIN applications or /llc for U.S. LLC formation is a logical progression. You can also review our pricing for the Standard ITIN Package at $497. For immediate assistance or specific queries, contacting itin.net is recommended.

Practical tips

  • Use the exact same legal name on your Form W-7 as it appears on your valid passport. Any discrepancies can cause significant delays or rejection.
  • When applying for an ITIN to file Form 5472 for your U.S. LLC, ensure you include a complete draft of Form 5472 with your W-7 application. This is a critical requirement for foreign-owned U.S. entities.
  • If you are mailing original documents to the IRS, consider using a traceable shipping method. However, using a Certified Acceptance Agent (CAA) allows you to avoid mailing originals altogether.
  • Understand the specific requirements for the Portugal-U.S. tax treaty if you are claiming any treaty benefits. Incorrect claims are a common reason for ITIN application rejection.
  • Once you receive your ITIN, keep it in a secure place. You will need it for all future U.S. tax filings and potentially for opening a U.S. bank account.

Frequently asked questions

Can I get an ITIN if I am a Wise business user in Portugal and only have income from my Portuguese business?

You generally only need an ITIN if you have a U.S. tax filing obligation. If your business operations and income are solely within Portugal and do not involve U.S. sources or U.S. entities like a U.S. LLC, you likely do not need an ITIN. However, if you've formed a U.S. LLC or have other U.S. nexus, an ITIN may be required.

How long does it take to get an ITIN via itin.net for a Wise business user in Portugal?

When you apply through itin.net, which acts as a Certified Acceptance Agent (CAA), the IRS processing time for your ITIN is typically 5–10 business days. The entire process, including document verification and submission, is significantly faster than applying directly to the IRS.

What identification documents do I need as a Wise business user from Portugal applying for an ITIN?

The preferred identification document is your valid passport. You will also need to provide supporting documentation that justifies your need for an ITIN, such as a U.S. tax return or, for U.S. LLC owners, a draft of Form 5472.

Do I need an ITIN if I have a U.S. LLC but all my clients are in Europe?

Yes, if you have a U.S. LLC, you likely need an ITIN. The IRS requires foreign owners of U.S. entities to file informational returns like Form 5472. To file Form 5472, you will generally need an ITIN, even if your clients are not in the U.S.

Can I use my Wise account details to apply for an ITIN?

Your Wise account details are not used for the ITIN application itself. The ITIN application is based on your personal identity and your U.S. tax obligations. However, Wise facilitates the global financial transactions that might lead to U.S. tax obligations requiring an ITIN.

What happens if I don't get an ITIN when I need one for my U.S. LLC?

Failure to file required U.S. tax returns, such as Form 5472, by the deadline can result in significant penalties from the IRS. These penalties can be substantial, making it crucial to obtain your ITIN promptly if required for your U.S. LLC.

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