Are you a non-U.S. resident planning to start a business, file taxes, or invest in the United States? If so, chances are you’ll need to complete an ITIN application. But what is an ITIN? Why do you need one? And how can you apply without confusion or delays?

This guide is designed to simplify the process, especially for Indian entrepreneurs and other international founders. Plus, we’ll show you how USAIndiaCFO can help you apply for an ITIN quickly, correctly, and hassle-free.


What Is an ITIN?

Let’s start with the basics.
ITIN stands for Individual Taxpayer Identification Number. It is a 9-digit number issued by the Internal Revenue Service (IRS) to individuals who need to pay taxes or file tax returns in the U.S. but are not eligible for a Social Security Number (SSN).

Here’s what it looks like: 9XX-XX-XXXX
Unlike an SSN, the ITIN is used solely for tax purposes.


Why Do You Need an ITIN?

You might be wondering, “Do I really need an ITIN?” If you fall into any of the categories below, the answer is likely yes.

Common Reasons for Applying for an ITIN:

  • You’re a foreign founder or investor in a U.S. company.

  • You’re required to file a U.S. tax return (e.g., as a member of a U.S. LLC).

  • You earn U.S.-sourced income (such as royalties, dividends, or consulting fees).

  • You’re claiming a tax treaty benefit to reduce withholding.

  • You want to open a U.S. bank or brokerage account.

  • You need to get paid by U.S. platforms like Amazon, Stripe, or PayPal.

Without an ITIN, the IRS cannot process your tax documents, and U.S. companies may be required to withhold 30% of your income — even if you qualify for a lower tax rate under a treaty.


When Should You Apply for an ITIN?

The best time to apply is before your first U.S. tax filing is due. However, some business activities — like opening a U.S. bank account or receiving payments — may require an ITIN even before you generate any income.

If you’re an Indian entrepreneur forming a U.S. LLC, it’s smart to get your ITIN early. Doing so ensures you’re fully compliant and ready to receive income without unnecessary delays or high tax withholdings.


What Documents Are Required for ITIN Application?

To apply for an ITIN, you’ll need the following:

  1. IRS Form W-7
    This is the official ITIN application form. You’ll state your reason for needing an ITIN and provide relevant personal details.

  2. Proof of Identity
    Most applicants use a certified copy of their passport. If you’re applying from India, you’ll need to get your passport certified by the issuing agency or a U.S. embassy/consulate.

  3. Supporting Documents
    Depending on your situation, you may need:

    • A U.S. federal tax return (Form 1040-NR)

    • A letter from a withholding agent (e.g., payment platform or client)

    • Incorporation documents if applying as a foreign founder

🔍 Note: Applying as a business owner is different from applying as a dependent or student. Make sure your reason for applying is properly documented.


How to Apply for an ITIN (Step-by-Step)

Let’s walk through the typical process of completing your ITIN application:

Step 1: Prepare IRS Form W-7

Download and fill out the latest version of Form W-7. Select the correct reason code (most international founders use “b – Nonresident alien required to obtain ITIN to claim tax treaty benefit”).

Step 2: Gather Identification Documents

Get a certified copy of your passport or schedule an in-person appointment with a Certified Acceptance Agent (CAA).

Step 3: Collect Supporting Evidence

Depending on your case, this may include:

  • A U.S. tax return

  • A letter from a U.S. client or platform (e.g., Stripe or Amazon)

  • Company formation documents (e.g., Certificate of Formation, EIN)

Step 4: Submit to the IRS

You can send your completed ITIN application package to the IRS via:

  • Mail (Austin, Texas processing center)

  • In-person at IRS offices (if you’re in the U.S.)

  • Through a CAA (Certified Acceptance Agent) like USAIndiaCFO

⚠️ Mistakes can lead to rejection or long delays — up to 11 weeks or more.


Why Use USAIndiaCFO for Your ITIN Application?

Applying for an ITIN can be confusing, especially for international founders with no U.S. tax experience. This is where USAIndiaCFO makes a major difference.

Here’s how USAIndiaCFO helps simplify the process:

Complete Documentation Support

They guide you through each step — from correctly filling out Form W-7 to assembling supporting documents.

Certified Acceptance Agent (CAA) Access

Avoid long waits or embassy appointments. USAIndiaCFO partners with certified agents who can verify your passport, so you don’t have to send the original.

IRS Communication Handled for You

They communicate with the IRS on your behalf, minimizing the chance of errors, rejections, or delays.

End-to-End U.S. Business Setup

Already incorporating your U.S. LLC or C-Corp? USAIndiaCFO can bundle your ITIN application with EIN, bank account setup, and compliance services.

Designed for Indian Founders

They specialize in helping Indian entrepreneurs set up and manage U.S. companies. That means less confusion and more clarity tailored to your needs.


Frequently Asked Questions (FAQs)

How long does it take to get an ITIN?

It typically takes 7 to 11 weeks, depending on the IRS workload. Using a Certified Acceptance Agent may speed up the process.

Can I apply for an ITIN without a U.S. tax return?

Yes — if you’re applying to claim a treaty benefit or for other qualifying reasons (e.g., to open a bank account). You’ll need to provide alternative documentation.

Does an ITIN expire?

Yes. If you don’t use it for three consecutive years, the IRS may deactivate it. However, you can renew it easily if needed.

Can USAIndiaCFO help even if I already formed my company?

Absolutely. Even if you’ve already incorporated, they can assist with ITIN, EIN, bank accounts, and compliance.


Conclusion: Apply for Your ITIN the Smart Way

If you’re serious about doing business in the U.S., you can’t afford to overlook your ITIN application. It’s a vital step for tax compliance, smooth banking, and global growth.

Instead of wrestling with IRS forms and document requirements, let the experts at USAIndiaCFO guide you. From incorporation to ITIN, they provide everything Indian and international founders need to succeed in the U.S. — with no stress, no guesswork, and no delays.

Categorized in:

Finance & Insurance,

Last Update: July 19, 2025

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