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Illustration for an ITIN article aimed at NFT artists based in Portugal
ITIN12 min read

How NFT artists from Portugal Get an ITIN

NFT artists in Portugal need an ITIN for U.S. tax obligations. Learn the requirements, documentation, and application process to secure your U.S. tax ID.

Reviewed by , ITIN Specialist at itin.net.

Why NFT Artists in Portugal Need an ITIN

NFT artists in Portugal face a specific challenge when U.S. entities or platforms, like OpenSea, Foundation, or Rarible, issue royalty payments. These payments are considered U.S.-source income, triggering a U.S. tax filing requirement even if you are not a U.S. resident. Without a Social Security Number (SSN), the U.S. tax identification number for individuals, you must obtain an Individual Taxpayer Identification Number (ITIN) to file your U.S. tax return. This is essential for compliance and to potentially claim benefits under the Portugal-U.S. tax treaty, which can reduce withholding on your earnings. Failure to obtain an ITIN can lead to penalties and difficulty managing your U.S. tax obligations. You may also need an ITIN if you are forming a U.S. entity, such as a U.S. LLC, to receive these royalties, as the IRS requires identification for owners of U.S. businesses.

While many non-residents might need an ITIN for various U.S. income streams, NFT artists in Portugal often deal with fluctuating and sometimes substantial royalty payments. This income stream can be complex due to the nature of digital art sales and the global reach of NFT marketplaces. The digital nomad community in Portugal, especially with the NHR program, means many creators are accustomed to managing international tax affairs. However, the specific U.S. nexus created by NFT sales requires a tailored approach to U.S. tax compliance. This process necessitates obtaining an ITIN to correctly report income and claim any applicable treaty benefits, ensuring you remain compliant with both Portuguese and U.S. tax laws.

Eligibility and Triggers for ITIN Application

Your eligibility for an ITIN hinges on needing to file a U.S. tax return but not qualifying for an SSN. For NFT artists in Portugal, this trigger is almost always the receipt of U.S.-source royalty income from NFT sales platforms. These platforms often operate as U.S. entities or have U.S. operations, making the income taxable in the United States. Even if you receive a Form 1099-MISC or 1042-S reporting these earnings, you must file a U.S. tax return (typically Form 1040-NR for non-residents) to report this income and claim any eligible treaty benefits.

Another common trigger for NFT artists is the establishment of a U.S. business entity, such as a U.S. LLC, to manage their creative output and income. If you form a U.S. LLC, the IRS requires identification for the beneficial owners, even if they are non-residents. This often means applying for an ITIN for yourself personally, even if the LLC itself might need an EIN or Employer Identification Number. The IRS uses the ITIN to track individuals for tax purposes, ensuring that all U.S. tax obligations are met. Without an ITIN, you cannot properly file the necessary U.S. tax forms, which can lead to complications with your income, potential business setup, and compliance with tax authorities.

Required Documentation for Your ITIN Application

To apply for an ITIN, you must complete Form W-7, Application for IRS Individual Taxpayer Identification Number. This form requires your personal information, including your name, address, and foreign tax identification number (if applicable). You will also need to submit original or certified copies of identification documents to verify your identity and foreign status. The IRS strongly prefers a valid passport as the primary identification document because it clearly shows your name, photograph, nationality, and expiration date. If you do not have a passport, other documents may be accepted, but they must be current and complete, such as a national identity card, birth certificate, or a driver's license. Each document must be accompanied by a U.S. visa, if applicable, to prove your foreign status.

Beyond identity verification, you must include a U.S. federal income tax return with your Form W-7. For NFT artists in Portugal, this will typically be a Form 1040-NR, U.S. Nonresident Alien Income Tax Return, reporting your U.S.-source royalty income. If you are applying for an ITIN solely to meet the requirements of a U.S. business entity like a U.S. LLC and do not have current U.S. tax liability, you may be able to claim an exception. However, for most NFT artists receiving direct payments, the tax return is a mandatory component. Ensure all documentation is accurate and matches your personal details precisely to avoid delays or rejections. You can find detailed lists of acceptable documents on the IRS website or consult with a specialist.

The ITIN Application Process: Step-by-Step

The ITIN application process begins with gathering your required documentation: a completed Form W-7, your original or certified identity documents, and a valid U.S. federal income tax return. Once these are prepared, you have several options for submission. You can mail all your documents directly to the IRS in Austin, Texas. However, this method involves sending original identification documents through the mail, which carries a risk of loss, and processing times can be significantly longer, often taking several months.

A more efficient and secure method is to apply through a Certified Acceptance Agent (CAA). As a CAA, itin.net can verify your original identification documents on your behalf and forward your application to the IRS without you needing to mail your passport or other vital records. This process typically expedites your application, with an estimated processing time of 5–10 business days once the IRS receives your complete application package. After the IRS processes your application, they will issue you an ITIN, usually in the form of a notice called CP-565, and return your original documents if you mailed them directly. If you used a CAA, your documents are returned to you by the CAA. You can then use this ITIN for any required tax filings or business purposes.

Common Mistakes for NFT Artists in Portugal

NFT artists in Portugal often encounter specific pitfalls when applying for an ITIN. A frequent error is failing to accurately claim benefits under the Portugal-U.S. tax treaty. The treaty can reduce or eliminate U.S. withholding tax on royalties, but requires specific treaty article references and residency information on your tax return. Incorrectly claiming treaty benefits, or not claiming them at all when eligible, can lead to overpayment of taxes or rejection of your application. Always consult the treaty provisions and ensure your tax return reflects them correctly.

Another common mistake is related to the structure of income. If you are operating through a business entity, such as a U.S. LLC, and haven't correctly distinguished between personal income and business income, this can cause confusion. Ensure your Form W-7 application and accompanying tax return clearly reflect your personal tax obligations. For example, if your LLC needs an EIN, applying for a personal ITIN should be for your personal income reporting, not to circumvent business tax requirements. Furthermore, incomplete or inaccurate supporting documentation, such as mismatched names between your passport and Form W-7, or missing pages from your tax return, will cause delays. Ensure you are submitting a complete and accurate tax return, as required by the IRS, when applying for an ITIN.

Benefits of Using a Certified Acceptance Agent (CAA)

Applying for an ITIN through a Certified Acceptance Agent (CAA) like itin.net offers significant advantages, particularly for NFT artists who may be hesitant to mail original identification documents. A CAA is authorized by the IRS to review your application and supporting documents, verify your identity, and forward the package to the IRS without you having to send your original passport or other vital records. This dramatically reduces the risk of losing irreplaceable documents during transit.

Moreover, CAAs are trained to ensure your application is complete and accurate before it is submitted to the IRS. This pre-screening process helps to minimize errors and omissions that could lead to delays or rejection of your ITIN application. For NFT artists in Portugal, this means a smoother, more secure, and often faster path to obtaining your ITIN. The typical processing time when using a CAA is considerably shorter, often within 5–10 business days after the IRS receives your application, compared to potentially months when mailing directly. This efficiency is invaluable for artists needing to establish their U.S. tax compliance promptly, perhaps for business setup or to finalize tax filings.

Next Steps After Obtaining Your ITIN

Once you receive your ITIN, it is crucial to use it correctly for all U.S. tax-related activities. This includes filing your annual U.S. tax return (e.g., Form 1040-NR) and any other required IRS forms. If you have established or plan to establish a U.S. business entity, such as a U.S. LLC, your ITIN will be essential for reporting your ownership interest and any income or distributions. You may also need your ITIN to open a U.S. bank account, which can streamline your financial transactions related to U.S. income.

Remember that your ITIN is a tax processing number, not a work authorization or a form of identification for general purposes. It is valid for seven years unless you let it expire or the IRS revokes it. If you continue to have U.S. tax obligations, you will likely need to renew your ITIN before it expires. For NFT artists in Portugal, staying current with U.S. tax laws and reporting requirements is key to managing your international business effectively. Reviewing your tax situation annually and consulting with a tax professional can help ensure ongoing compliance. Consider contacting itin.net if you require assistance with your ITIN application or future tax filings.

Practical tips

  • Use the same legal name across your Form W-7, your passport, and any other official identification documents to prevent mismatches.
  • Ensure your accompanying U.S. tax return is complete, accurate, and signed. Missing signatures or incomplete tax forms are common reasons for ITIN application rejection.
  • If claiming benefits under the Portugal-U.S. tax treaty, correctly reference the specific treaty article and provide necessary documentation on your tax return.
  • When using a Certified Acceptance Agent (CAA), provide them with all requested documents promptly to expedite the verification and submission process.
  • Keep a copy of your submitted Form W-7 and all supporting documents for your records. This is essential for future reference and potential IRS inquiries.

Frequently asked questions

Do NFT artists in Portugal need to pay U.S. taxes on royalties?

Yes, royalty income from NFT sales through U.S.-based platforms or to U.S. buyers is generally considered U.S.-source income and is subject to U.S. tax filing requirements. You will need an ITIN to file the necessary U.S. tax return.

Can I use my Portuguese tax ID instead of an ITIN?

No, your Portuguese tax identification number is for Portuguese tax purposes. An ITIN is specifically required by the IRS for individuals who need to file U.S. taxes but do not have an SSN.

How long does it take to get an ITIN through a Certified Acceptance Agent (CAA)?

When you apply through a CAA like itin.net, the typical processing time is 5–10 business days after the IRS receives your complete application package. This is significantly faster than mailing directly to the IRS.

What if my name on my NFT platform profile is different from my passport?

It is crucial that the name on your Form W-7 exactly matches the name on your primary identification document (e.g., your passport). Mismatched names are a common reason for ITIN application rejection. You may need to update your platform profile or ensure your official documents reflect your legal name consistently.

Can I use my ITIN to open a U.S. bank account?

Yes, your ITIN can often be used to open a U.S. bank account or a business account with certain U.S. financial institutions. This is a common requirement for non-residents who conduct business in the U.S.

Do I need to file a U.S. tax return every year if I earn NFT royalties?

If you have U.S.-source income that requires filing, such as NFT royalties, you will generally need to file a U.S. tax return annually for as long as you continue to earn that income. The Portugal-U.S. tax treaty may offer benefits that reduce your tax liability, but filing is still typically required.

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