An ITIN application is the formal process of submitting IRS Form W-7 to obtain an Individual Taxpayer Identification Number. For foreign entrepreneurs and non-resident aliens who do not qualify for a U.S. Social Security Number (SSN), securing an ITIN is a mandatory step to comply with U.S. tax laws, open a U.S. business bank account, and operate a company legally on American soil.
However, dealing with the Internal Revenue Service (IRS) is never a simple task. Submitting an ITIN application on your own involves strict documentation rules, including the frightening prospect of mailing your original, physical passport to a federal processing center. A single unchecked box or an improper document certification will result in instant rejection and months of costly delays for your startup. At Riveros Corp, our corporate compliance specialists manage your entire ITIN process. We ensure your application is flawless and properly certified, safeguarding your original documents and accelerating your business setup in the United States.
What is an ITIN and Why Do Foreign Founders Need It?
An Individual Taxpayer Identification Number (ITIN) is a nine-digit tax processing number issued by the IRS. It is formatted similarly to an SSN (e.g., 9XX-XX-XXXX) but is strictly used for federal tax reporting purposes.
As a foreign entrepreneur operating a U.S. LLC or Corporation, you need an ITIN to:
File your mandatory federal and state income tax returns.
Claim tax treaty benefits, if applicable between your home country and the U.S.
Open a U.S. business bank account (most major banks require an EIN for the business and an ITIN for the foreign owner).
Comply with payment gateways like Stripe or PayPal for your digital business.
Apply for business credit or commercial loans in the future.
Important Note: An ITIN does not authorize you to work as an employee in the United States, nor does it provide eligibility for Social Security benefits or alter your immigration status.
Why You, as a Foreign Entrepreneur, Absolutely Need an ITIN
Beyond simple tax compliance, a professionally secured ITIN offers several strategic advantages. Here’s why Riveros Corp makes this a priority for our clients:
Filing U.S. Tax Returns: This is the most direct reason. If your U.S. corporation or LLC (learn more about our business formation services) generates income, you are required to file a personal tax return.
Opening a Business Bank Account: Many major financial institutions require an SSN or ITIN from all signatories on the account.
Building Business Credibility: An ITIN demonstrates your commitment to U.S. regulations, enhancing your reputation with partners and lenders.
Meeting Lending Requirements: If you plan to seek financing, lenders will almost certainly require a personal taxpayer ID.
Mandatory Requirements for a Successful ITIN Application
To successfully process an ITIN application, the IRS requires specific documentation to prove two critical elements: your foreign status and your identity.
1. The IRS Form W-7
The core of your ITIN application is the IRS Form W-7 (Application for IRS Individual Taxpayer Identification Number). This form requires detailed personal information, the specific reason you are applying (often categorized as a non-resident alien required to get an ITIN to claim a tax treaty benefit or file a U.S. return), and information about your foreign entity or U.S. business.
2. Proof of Identity and Foreign Status
The IRS only accepts 13 specific documents to satisfy this requirement. The absolute best document is a valid, unexpired Foreign Passport, because it is the only standalone document that proves both identity and foreign status simultaneously.
If you do not use a passport, you must provide a combination of at least two other accepted documents (such as a foreign voter registration card, a national identification card, or a foreign driver’s license) that meet the strict IRS criteria.
3. The Federal Tax Return (or Exception Documents)
In most cases, an ITIN application cannot be submitted on its own; it must be attached to a valid U.S. federal income tax return. However, foreign entrepreneurs often qualify for specific «Exceptions» (such as Exception 1(a) for third-party withholding on passive income). Claiming an exception requires providing supplemental corporate documentation, such as your LLC’s Articles of Organization and your EIN confirmation letter.
How Long Does the ITIN Application Take?
The IRS typically processes a complete, error-free ITIN application in seven to eleven weeks, and slightly longer during peak tax season (January through April) or when applying from abroad. That window only starts counting once the IRS receives a correctly assembled package: Form W-7, the attached federal tax return when required, and acceptable proof of identity and foreign status.
The real timeline killer is not the IRS queue — it is rejection. An application returned for correction can easily add two or three months to the process. That is why preparing the package correctly the first time matters more than submitting it quickly.
Common Mistakes That Delay or Sink an ITIN Application
- Sending an original passport when a certified copy would do: applicants often mail their only passport to the IRS and are left without identification for months. A Certifying Acceptance Agent or a certified copy from the issuing agency avoids this entirely.
- Filing Form W-7 without the required tax return: unless you qualify for a specific exception, the W-7 must travel together with a federal income tax return. A W-7 sent alone is rejected automatically.
- Inconsistent names and dates: the name on the W-7 must match the passport and the tax return exactly. A missing middle name or a transposed date of birth triggers a rejection letter.
- Choosing the wrong reason code: Form W-7 asks why you need an ITIN. Selecting a code that does not match your actual situation is one of the most common — and most avoidable — causes of denial.
- Letting the ITIN expire: an ITIN not used on a federal return for three consecutive years expires and must be renewed before it can be used again.
The Hidden Risks of Submitting Form W-7 on Your Own (DIY)
Attempting a «Do It Yourself» ITIN application is one of the most common pitfalls for international founders. The IRS is notoriously unforgiving when it comes to compliance errors.
The Risk of Mailing Original Passports
The most significant risk of a DIY ITIN application is the documentation rule. The IRS dictates that if you apply directly by mail, you must send your original passport or a certified copy from the issuing agency (which is impossible to get in many countries). Mailing your actual passport to an IRS processing facility means you will be without your most vital international travel document for 3 to 4 months, with a high risk of it being lost in transit.
Unforgiving Rejections
If you fill out Form W-7 incorrectly, apply under the wrong category, or fail to attach the exact supplementary documents for an exception, the IRS will reject the application. They will return your documents (eventually) with a generic rejection letter, forcing you to start the entire process over again.
ITIN vs. EIN vs. SSN: Which One Does Your Business Need?
These three identifiers are constantly confused, and using the wrong one can stall a bank account opening or a tax filing:
- SSN (Social Security Number): personal tax ID for U.S. citizens and authorized residents. Foreign entrepreneurs without work authorization generally cannot obtain one.
- ITIN (Individual Taxpayer Identification Number): personal tax ID for individuals who must file or be reported on a U.S. tax return but do not qualify for an SSN — the subject of this guide.
- EIN (Employer Identification Number): the tax ID of your company, not of you as a person. Your LLC or corporation needs its own EIN to open business bank accounts, hire employees, and file business returns. Learn what an EIN is and how to obtain yours with or without an SSN.
What Happens After Your ITIN Is Issued?
Once the IRS assigns your ITIN, you will receive a CP565 notice confirming the number. From that point on you can file federal returns, receive certain treaty benefits, open interest-bearing accounts at many U.S. banks, and begin building a financial footprint in the United States. Keep the notice with your permanent records, use the ITIN on every federal filing, and remember the three-year usage rule so it never lapses when you need it most. If you also plan to build personal credit in the United States, your ITIN is the starting point: many banks and credit-card issuers accept it in place of an SSN, which lets you open accounts, establish a payment history, and strengthen your financial profile while your business grows.The Riveros Corp Method: Secure, Fast, and Professional
Our entire approach is designed around client security and efficiency. We exclusively use Certifying Acceptance Agents (CAAs), who are authorized by the IRS through its Acceptance Agent Program.
This is how we provide a superior service:
Your Documents Never Leave Your Sight: The CAA verifies your original passport in a secure meeting and returns it to you immediately. We handle the certified copies for the IRS.
Expert-Led Submission: Our team, in conjunction with the CAA, reviews the entire package—Form W-7, tax return, and documentation—to guarantee it is flawless before submission.
Peace of Mind: This method virtually eliminates the risk of rejection and protects your most valuable documents.
Expert Insight from Riveros Corp:
«Our clients are focused on building their U.S. businesses; they shouldn’t be bogged down by IRS bureaucracy. We’ve built our ITIN service to act as a shield, managing the complexity and risk so they can move forward with confidence. We handle the paperwork, they handle the growth.»
Which Documents the IRS Accepts for Your ITIN Application
Because identity and foreign-status verification is where most ITIN applications stumble, it helps to know exactly what the IRS will accept before you assemble your Form W-7 package. The single strongest document is a valid passport, which on its own proves both identity and foreign status. When a passport is not available, the IRS requires a combination of two or more documents from its approved list, and each one must be current and either an original or a copy certified by the issuing agency rather than a locally notarized photocopy.
- National identification card showing your photo, name, address, date of birth, and expiration date.
- Foreign driver’s license or a U.S. state identification card.
- Visa issued by the U.S. Department of State when applicable to your situation.
- Civil birth certificate, which is especially relevant for dependents on the application.
For applicants living outside the United States, the practical difficulty is meeting these standards without mailing irreplaceable originals across borders. This is precisely where working through a Certifying Acceptance Agent changes the equation: the agent verifies your originals in person, certifies the copies the IRS needs, and returns your documents to you the same day.
What to Expect After You Submit
Once the IRS receives a complete package, it assigns the ITIN and mails a CP565 notice confirming your number. If something is missing, you instead receive a CP566 letter requesting the specific item, and responding promptly keeps your file moving forward rather than restarting it. Riveros Corp tracks each application through these stages, so you always know whether your number is issued, still pending, or awaiting a response, and you never lose weeks wondering where the file stands.
Do You Need an ITIN Before or After Forming Your Company?
Foreign founders often ask whether the ITIN comes first or the company. In most cases the business entity and its EIN can be established without any personal tax number, because the EIN belongs to the company, not to the owner. The ITIN becomes relevant when the owner personally has a U.S. federal tax reporting obligation—for example, when the structure of the business passes income through to the individual, or when the founder must file a U.S. return for another reason. Sequencing these steps correctly avoids applying for a number you do not yet need, or scrambling for one at the last minute.
Why Foreign Founders Choose Riveros Corp
Securing your ITIN should not paralyze your international travel or stall your company’s operations.
At Riveros Corp, we specialize in managing the complexities of U.S. corporate compliance for foreign nationals. We evaluate your specific business structure, determine the correct IRS exception category, and prepare your Form W-7 with precision. Most importantly, we guide you through the accepted methods of document certification, ensuring you never have to mail your original passport directly to the IRS and risk losing it.
Do not leave your business compliance to chance or risk your vital identity documents. Contact Riveros Corp today to start your secure, professionally managed ITIN application.
Frequently Asked Questions (FAQ) about Our ITIN Service
Who exactly needs to file an ITIN application?
Any non-resident alien, foreign entrepreneur, or individual who is required to have a U.S. taxpayer identification number for tax purposes—but is not eligible for a Social Security Number (SSN)—must file an ITIN application.
Can I submit a notarized copy of my passport for an ITIN application?
No. The IRS explicitly states that standard notarized copies of a passport (from a regular public notary) are not accepted. You must submit the original document, a copy certified by the issuing agency, or use an IRS-authorized Certifying Acceptance Agent (CAA) to verify your documents.
How long does the ITIN application process take?
Generally, it takes the IRS between 7 and 11 weeks to process an ITIN application and issue the number. However, during peak tax seasons or if there are errors in your application, this timeline can easily extend beyond 14 weeks.
Do I have to attach a tax return to my ITIN application?
Usually, yes. Form W-7 is typically submitted attached to your federal income tax return. However, there are specific «Exceptions» (like being a partner in a U.S. LLC or having U.S. source income subject to withholding) that allow you to apply for an ITIN without a tax return, provided you include the proper corporate documentation.
Will getting an ITIN affect my immigration status?
No. An ITIN is issued strictly for federal tax administration purposes. It does not provide legal immigration status, it does not give you the right to work in the United States, and it does not make you eligible for Social Security benefits.
Legal Disclaimer:
This article is provided for informational purposes only and does not constitute legal advice. The content herein is not intended to substitute professional legal consultation. For specific guidance regarding your individual circumstances, please consult directly with a qualified attorney licensed to practice in your jurisdiction.
