ITIN for Non-US Business Owners: What You Need

Why Do Non-US Business Owners Need an ITIN in 2026?

The IRS requires every individual with US tax obligations to have a taxpayer identification number. If you are a non-US resident who owns an LLC, earns income through a US business, or has US-source income, you must file a US tax return. Since you cannot get a Social Security Number without US work authorization, an ITIN is your only option for meeting these requirements.

Beyond tax filing, an ITIN unlocks practical necessities for your business. Most US banks require either an SSN or ITIN to open a business account. Payment processors like Stripe and PayPal need a tax ID for verification. And if you want to build business credit in the US, an ITIN is the foundation. Without one, you are essentially locked out of the US financial system.

Here are the specific situations where a non-US business owner needs an ITIN:

• Filing your personal US tax return (Form 1040-NR) as the owner of a US LLC or corporation
• Applying for an EIN online through the IRS portal, which requires an SSN or ITIN as the responsible party
• Opening a business bank account at Mercury, Relay, Wise, or other US banks that require personal tax ID verification
• Setting up Stripe or PayPal for accepting payments through your US business
• Signing W-8BEN forms for clients, vendors, or platforms that require your taxpayer identification number
• Building US business credit which starts with having a personal tax identification number on file

The ITIN for business use also serves as your identifier on Form 1040-NR (Non-Resident Tax Return), any W-8BEN forms you sign, and as the responsible party reference when you apply for an EIN online. For the full breakdown of how this works with an LLC, read our guide on ITIN for LLC owners.

What Is the Difference Between an ITIN and an EIN for Business?

Most non-US business owners need both an ITIN and an EIN, but they serve completely different purposes. Here is a side-by-side breakdown:

For the full comparison with more detail on each point, see our dedicated ITIN vs EIN comparison.

What Is the Correct Setup Order for a Non-US Business?

Getting the sequence right saves you weeks of waiting and avoids unnecessary complications. Many non-US owners try to skip steps or do things out of order, which leads to rejections, delays, and extra fees. Here is the order that works best for non-US business owners based on our experience with thousands of applicants:

What Are the Tax Filing Requirements for Non-US LLC Owners?

As a non-resident LLC owner, you have specific US tax filing requirements that the IRS enforces with steep penalties. Understanding these obligations early prevents costly surprises. Many non-US owners assume that having no income means they have no filing requirements. That assumption is wrong, and it can cost you $25,000 or more.

Form 5472 and Form 1120: Every single-member LLC owned by a foreign person must file Form 5472 (Information Return of a 25% Foreign-Owned U.S. Corporation) along with a pro-forma Form 1120 annually. This requirement applies even if your LLC had zero income and zero transactions during the year. The penalty for failing to file is $25,000 per form per year. The IRS does not offer leniency on this, and the penalty is not reduced for first-time offenders.

Form 1040-NR: If you have effectively connected income (income tied to a US trade or business), you must file a personal tax return using Form 1040-NR. Your ITIN goes on this form. Even if a tax treaty between the US and your home country reduces your tax liability to zero, you still need to file the return to claim the treaty benefit.

FBAR and FATCA: If your US financial accounts exceed certain thresholds, additional reporting requirements may apply. The FBAR (FinCEN Form 114) is required if you have foreign financial accounts exceeding $10,000 in aggregate value at any point during the year. FATCA reporting applies at higher thresholds. These are separate from your tax returns and carry their own penalties for non-compliance.

Consult a tax professional familiar with non-resident business taxation to make sure you are meeting all your obligations. The key takeaway is simple: get your ITIN early so you can file on time and avoid penalties. The cost of a CPA is always less than the cost of an IRS penalty.

Which US Banks Accept Non-US Business Owners with an ITIN?

Opening a US business bank account is one of the first practical hurdles non-US owners face. Without a US bank account, you cannot receive ACH payments, pay US vendors, or manage your business finances efficiently. The good news is that several banks actively welcome international business owners with ITINs. The challenging part is that each bank has slightly different requirements and application processes.

Mercury is one of the most popular options for non-US LLC owners. They accept ITIN holders, offer a fully online application, and provide standard business banking features including ACH transfers, wire transfers, and debit cards. You will need your ITIN, EIN, LLC formation documents, and passport.

Relay is another strong choice. They support multi-owner accounts and offer useful features like separate checking accounts for different business purposes (operations, taxes, payroll). Relay also accepts ITIN holders and has a straightforward online application.

Wise Business is particularly useful if you receive payments in multiple currencies. Their multi-currency account lets you hold and convert funds in dozens of currencies at the mid-market exchange rate. Wise accepts ITINs and EINs for US business accounts.

Before applying to any bank, make sure you have your ITIN, EIN, and LLC documents ready. Some banks may also ask for proof of business activity or a US address. Check our full ITIN bank account guide for specific requirements and tips for each bank.

How Do You Set Up Stripe and PayPal with an ITIN?

Accepting payments online is central to most businesses, and both Stripe and PayPal require tax identification to verify US-based accounts. If you plan to sell products, offer services, or run a SaaS business through your US LLC, getting your payment processing set up correctly from day one matters. Here is what you need to know about each.

Stripe: To activate a Stripe account for a US LLC, you need your EIN and your LLC formation details. Stripe also asks for the responsible party's personal information, which is where your ITIN comes in. Having an ITIN makes the verification process smoother and reduces the chance of holds or delays on your payouts. Without proper tax ID verification, Stripe may restrict your account or withhold funds.

PayPal: PayPal Business accounts for US LLCs require similar verification. You will enter your EIN for the business and your ITIN as the account holder. PayPal is known for being cautious with international accounts, so having all your documents ready before you apply prevents unnecessary friction. If you plan to sell on platforms like Shopify or WooCommerce, both integrate directly with Stripe and PayPal.

Other processors: If you sell on Amazon, Etsy, or other marketplaces, those platforms also require tax identification. Amazon Seller Central, for example, requires an EIN for your US LLC and will request your personal tax ID during the verification process. The requirements are similar across all major platforms.

The bottom line: get your ITIN and EIN before attempting to set up payment processing. Trying to activate these accounts without proper tax identification leads to verification loops, frozen funds, and wasted time.

Can Non-US Owners Build US Business Credit with an ITIN?

One of the overlooked benefits of getting an ITIN is that it opens the door to building US business credit. A strong credit profile helps you qualify for business credit cards, lines of credit, and eventually business loans at competitive rates.

The process starts with your ITIN. Once you have a US bank account and an active EIN, you can apply for a secured business credit card. Cards from providers like Brex (for startups with revenue), Mercury (credit card tied to your banking account), or a secured card from a traditional bank give you a starting point.

Pay your balances on time and in full each month. After 6 to 12 months of consistent payment history, your business credit profile with Dun & Bradstreet, Experian Business, and Equifax Business will start showing positive data. This credit history becomes valuable when you need larger credit lines or want to negotiate better terms with vendors.

The credit-building timeline looks roughly like this: months 1 to 3, establish your accounts and make regular purchases. Months 3 to 6, your first credit reports start appearing. Months 6 to 12, you build enough history to qualify for unsecured business credit cards. After 12 months, you may qualify for business lines of credit or term loans depending on your revenue and payment history.

To learn about the full range of possibilities an ITIN opens up, read our guide on what you can do with an ITIN. For PayPal and Stripe setup specifics, see our PayPal ITIN verification guide and Stripe ITIN setup guide. If you sell on Amazon as well, our Amazon FBA sellers guide covers platform-specific tax requirements.

Need help understanding what an ITIN actually is? Start with our what is an ITIN overview. Want the complete document list? Visit our ITIN documents checklist. Concerned about processing time? Our ITIN processing time guide provides month-by-month breakdowns. And if you already have an expired ITIN, see our renewal guide.

What Are the Most Common ITIN Mistakes Business Owners Make?

After working with thousands of non-US business owners, we see the same mistakes repeated over and over. Avoiding these saves you time, money, and stress.

• Skipping the ITIN and going straight for the EIN. Without an ITIN, you cannot use the IRS online EIN portal. You are stuck with the fax or mail process, which takes 4 to 5 weeks. Getting your ITIN first gives you instant online access to the EIN application.
• Mailing your original passport to the IRS. If you apply for an ITIN on your own and mail Form W-7 directly to the IRS, you must include your original passport or certified copies. The IRS holds your passport for 7 to 11 weeks during processing. Use a Certifying Acceptance Agent instead to keep your passport at all times.
• Missing the Form 5472 filing deadline. This is the single most expensive mistake. The $25,000 penalty applies per form per year, even for LLCs with no activity. Set a calendar reminder or hire a tax professional to handle this filing.
• Using a personal bank account for business transactions. Mixing personal and business finances compromises your LLC's liability protection. Open a separate business bank account as soon as you have your ITIN and EIN.
• Letting your ITIN expire. Your ITIN expires if you do not use it on a federal tax return for three consecutive years. If it expires, you will need to go through the renewal process before you can file or update your banking details.
• Not filing taxes because you had no income. Even with zero revenue, your foreign-owned LLC must file Form 5472 and the pro-forma 1120. No income does not mean no filing requirement.
• Waiting too long to start the ITIN process. The IRS takes 7 to 11 weeks to process your ITIN after submission. If you wait until tax season to start, you may miss filing deadlines. Begin your ITIN application as soon as your LLC is formed.
• Choosing the wrong state for your LLC. While you can form an LLC in any state, some states have annual franchise taxes or reporting requirements that add costs. Wyoming and New Mexico are popular with non-US owners because they have no state income tax and minimal annual fees.

How Much Does It Cost to Set Up a US Business as a Non-Resident?

Transparency on costs is important, so here is a realistic breakdown of what it costs to set up a US business as a non-resident. The IRS does not charge for ITIN or EIN issuance, but most non-US owners use professional services to handle the process correctly and keep their passport safe. The table below covers the one-time setup costs and the recurring annual costs you should budget for.

All in, most non-US business owners spend between $500 and $1,200 to get their LLC, ITIN, EIN, and bank account set up. Annual ongoing costs for tax filing and registered agent service run $550 to $1,700 depending on the complexity of your business and the CPA you choose.

The most cost-effective path for most owners is to use our ITIN + EIN bundle ($247), form the LLC through an affordable registered agent service, and open a free business bank account at Mercury or Relay. This gets your entire business infrastructure in place for under $700 in most states. Compare that to the $25,000 penalty for missing a single Form 5472 filing, and the setup costs are a fraction of what you risk by cutting corners or delaying.