ITIN for LLC: Everything Non-US Owners Need to Know

Do You Need an ITIN to Form an LLC?

No. You can form an LLC in any US state without an ITIN, SSN, or EIN. The formation process only requires your full legal name, a US registered agent address, and your foreign passport for identity verification. States like Wyoming, Delaware, and New Mexico are popular with non-US owners because they do not require members to be US residents and have minimal annual reporting requirements.

The confusion around this topic comes from mixing up formation and operation. Forming the LLC is just the first step. Operating the LLC as a non-US person requires tax identification numbers, bank accounts, and annual filings. That is where the ITIN becomes essential. Think of it this way: you can create the legal entity without an ITIN, but you cannot do much with it until you have one.

For a deeper look at how ITINs work specifically for LLC owners, including state-by-state considerations, see our complete guide on ITIN for LLC owners.

When Do LLC Owners Need an ITIN?

The ITIN becomes necessary at several specific points after your LLC is formed. Understanding exactly when you need it helps you plan your timeline and avoid delays that can stall your business.

• Filing your US tax return. Every non-US LLC owner with US tax obligations must file Form 1040-NR (Non-Resident Income Tax Return). Your ITIN goes on this form as your personal taxpayer identification number. Without it, you simply cannot file.
• Applying for an EIN online. The IRS online EIN application requires the responsible party to have an SSN or ITIN. If you do not have either, you must apply by fax or mail, which adds 4 to 5 weeks to the process. Your ITIN gives you instant online access.
• Opening a business bank account. Banks like Mercury, Relay, and Wise require personal identification for the account owner. An ITIN serves as your personal tax ID for this purpose. Without one, most banks will reject your application.
• Setting up payment processors. Stripe, PayPal, and other processors verify the identity of the business owner. Having an ITIN strengthens your verification and reduces the chance of account restrictions or payout holds.
• Signing W-8BEN forms. If you work with US clients, platforms, or vendors, they will ask you to complete a W-8BEN form that requires your taxpayer identification number.
• Filing Form 5472. This mandatory annual filing for foreign-owned LLCs requires your personal tax ID. The penalty for not filing is $25,000 per year, so having your ITIN in place before the filing deadline is critical.

The practical takeaway: apply for your ITIN as soon as your LLC formation is complete. The IRS takes 7 to 11 weeks to process applications, so starting early prevents bottlenecks down the line. Learn more about how business owners use their ITIN in our ITIN for business owners guide.

What Is the Difference Between an ITIN and an EIN for LLC Owners?

Non-US LLC owners need both an ITIN and an EIN, but the two numbers serve entirely different purposes. Here is a side-by-side comparison to clarify the distinction:

The key point: your ITIN is your personal number, your EIN is your business number. You need both. For a more detailed breakdown, read our full ITIN vs EIN comparison.

What Is the Correct Order: LLC, ITIN, EIN, or Bank First?

Doing things out of order is the most common source of delays for non-US LLC owners. Each step depends on the one before it. Follow this sequence to get set up as quickly as possible:

This sequence takes 8 to 14 weeks from LLC formation to active bank account, with most of that time spent waiting for the IRS to process your ITIN. Starting your ITIN application on day one keeps the total timeline as short as possible.

What Is Form 5472 and Why Does It Cost $25,000 to Miss?

This is the filing requirement that catches most non-US LLC owners off guard. The IRS requires every single-member LLC owned by a foreign person to file Form 5472 (Information Return of a 25% Foreign-Owned U.S. Corporation) along with a pro-forma Form 1120 every year. This is not optional. It applies even if your LLC had zero revenue and zero transactions for the entire year.

The penalty for not filing is $25,000 per form per year. That is not a typo. The IRS does not reduce this penalty for first-time offenders, and it applies regardless of whether you owed any tax. Many non-US LLC owners learn about this requirement only after receiving a penalty notice, which is why understanding your obligations from day one matters.

To file Form 5472, you need your ITIN (for the personal identification section) and your EIN (for the business identification section). The form reports transactions between your LLC and its foreign owner, including capital contributions, distributions, loans, and payments for services. Even if the only transaction was your initial capital contribution to the LLC, that must be reported.

The filing deadline is April 15 for calendar-year LLCs, with an automatic extension available to October 15 by filing Form 7004. Most non-US LLC owners hire a US tax professional or CPA to handle Form 5472 and the pro-forma 1120. The CPA fee of $500 to $1,500 per year is a fraction of the $25,000 penalty you risk by missing the filing.

If you also have effectively connected income (income from a US trade or business), you must file Form 1040-NR as well. Your ITIN goes on this personal return. Even when 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. The bottom line: get your ITIN early so you can meet every filing deadline without scrambling.

Which US Banks Accept LLC Owners with an ITIN?

A US business bank account is essential for keeping your personal and business finances separate, receiving client payments via ACH, paying US vendors, and maintaining the liability protection your LLC provides. Several banks actively serve non-US LLC owners with ITINs, and the best options offer fully online account opening.

Mercury is the most popular choice among non-US founders. They accept ITIN holders, offer a clean online application, and provide full business banking with ACH transfers, wire transfers, and virtual debit cards. No monthly fees. You need your ITIN, EIN, LLC formation documents, and passport.

Relay is a strong alternative that supports multiple checking accounts within one business account. This is useful for separating operations, taxes, and savings. Relay accepts ITINs and has no monthly fees. Their application process is similar to Mercury.

Wise Business works well if you deal in multiple currencies. Their multi-currency account lets you hold balances in dozens of currencies and convert at the mid-market rate. Wise accepts ITINs and EINs for US business accounts.

For a detailed comparison of requirements and features, check our ITIN bank account guide.

How Do LLC Owners Set Up Stripe and PayPal with an ITIN?

If your LLC sells products, offers services, or runs a SaaS platform, you need a payment processor. Both Stripe and PayPal require tax identification for US-based business accounts. Getting your ITIN and EIN before setting up payment processing prevents the verification loops, frozen funds, and delayed payouts that many non-US owners experience.

Stripe requires your EIN for the LLC and verifies the responsible party using personal identification. Your ITIN serves as that personal identifier. Having both numbers ready when you create your Stripe account results in a smoother activation and fewer verification requests. Without proper tax IDs, Stripe may restrict your account or hold payouts indefinitely.

PayPal Business follows a similar pattern. You enter your EIN for the business and your ITIN as the account holder's tax ID. PayPal is especially cautious with international accounts, so having complete documentation from the start prevents unnecessary delays. Both Shopify and WooCommerce integrate directly with PayPal and Stripe.

Marketplace platforms like Amazon Seller Central, Etsy, and eBay also require tax identification for US-based seller accounts. The requirements are consistent: your LLC's EIN for the business, and your ITIN for the personal verification of the account holder.

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

What Are the Most Common Mistakes Non-US LLC Owners Make?

After working with thousands of non-US LLC owners, we see the same mistakes again and again. Avoiding these saves you time, money, and a lot of frustration.

• Thinking you need an ITIN before forming the LLC. You do not. Form the LLC first, then apply for the ITIN. Waiting for an ITIN before starting your LLC delays your entire timeline by months for no reason.
• Skipping the ITIN and going straight for an EIN. Without an ITIN or SSN, you cannot use the IRS online EIN portal. You are forced to apply by fax or mail, adding 4 to 5 weeks. Getting your ITIN first gives you instant EIN access.
• Mailing your original passport to the IRS. If you apply directly without using a Certifying Acceptance Agent, the IRS requires your original passport or certified copies. They hold it for 7 to 11 weeks during processing. A CAA verifies your documents locally so you keep your passport.
• Ignoring Form 5472 because your LLC had no revenue. The $25,000 penalty applies regardless of income. Zero revenue does not mean zero filing requirements. Every foreign-owned single-member LLC must file Form 5472 annually.
• Using a personal bank account for LLC transactions. This compromises your LLC's liability protection. Courts call it "piercing the corporate veil," and it defeats one of the main reasons for having an LLC in the first place. Open a dedicated business account.
• 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 must go through the renewal process before you can file taxes or update your banking information.
• Choosing an expensive state for LLC formation. California charges an $800 annual franchise tax regardless of income. Wyoming and New Mexico have no state income tax and minimal annual fees, making them far more cost-effective for non-US owners.

How Much Does a Full LLC + ITIN + EIN Setup Cost in 2026?

Transparency matters. Here is the realistic cost breakdown for getting a US LLC fully operational as a non-resident owner. The IRS charges nothing for ITIN or EIN issuance, but professional services make the process faster, safer, and correct.

Most non-US LLC owners spend between $500 and $1,200 for the initial setup (LLC + ITIN + EIN + bank account). The most cost-effective path: form a Wyoming LLC, use our ITIN + EIN bundle for $247, and open a free business bank account at Mercury or Relay. That gets your entire business infrastructure in place for under $700 in most cases.

Annual ongoing costs run $600 to $1,800 depending on your CPA fees and registered agent service. Compare that to the $25,000 penalty for a single missed Form 5472 filing, and the investment in proper setup pays for itself many times over.

For a complete overview of ITINs, start with our what is an ITIN guide. For document requirements, see our ITIN documents checklist. Want to understand processing times? Our ITIN processing time guide provides month-by-month breakdowns. If you also sell online, check our guides for Amazon FBA sellers, Upwork freelancers, and Stripe setup. For banking details, see our specific guides for Mercury Bank and Wise accounts.