Do I Need an ITIN for My Wyoming LLC?

What is an ITIN and how does it differ from an EIN?

An ITIN (Individual Taxpayer Identification Number) is a 9-digit tax processing number the IRS issues to individuals who need to file US tax returns but are not eligible for a Social Security Number. The IRS created the ITIN program in 1996 specifically for non-resident aliens, resident aliens, and their dependents who have US tax filing obligations.

An EIN (Employer Identification Number) is a completely different number. The IRS assigns an EIN to your LLC as a business entity. The EIN identifies your business for tax purposes, bank account opening, payment processor registration, and federal tax filings related to the business. Every Wyoming LLC needs an EIN regardless of the owner's residency status.

The fundamental distinction is that an ITIN identifies you as an individual taxpayer while an EIN identifies your business. You can own and operate a Wyoming LLC with only an EIN. An ITIN becomes necessary only when you personally need to file a US tax return, which depends on whether your LLC generates income that creates a US tax obligation for you as an individual.

ITINs follow the format 9XX-XX-XXXX, always beginning with the digit 9. EINs follow the format XX-XXXXXXX, a 2-digit prefix followed by 7 digits. These numbers serve completely different purposes and one does not replace the other. Your LLC always uses the EIN for business purposes. You personally use the ITIN only for individual US tax returns.

Do I need an ITIN to form a Wyoming LLC?

No. You do not need an ITIN to form a Wyoming LLC. The Wyoming Secretary of State does not require any tax identification number from LLC owners during the formation process. Wyoming's Articles of Organization require only the LLC name, registered agent information, and organizer details.

Wyoming is among the most accessible states for non-resident LLC formation precisely because it imposes no identification barriers. Citizens from any country can file Articles of Organization online through the Wyoming Secretary of State website at sos.wyo.gov. The $100 state filing fee is the same for residents and non-residents. No passport, visa, SSN, ITIN, or EIN is required at the formation stage.

After LLC formation, you need an EIN from the IRS to open a bank account, register for Stripe, and file taxes. Non-residents without an SSN or ITIN obtain an EIN by faxing IRS Form SS-4 to (855) 641-6935 with "Foreign" written in the SSN field. The IRS processes faxed EIN applications in 4-8 weeks. This process does not require an ITIN. Read the full guide on getting an EIN without SSN.

The only scenario where having an ITIN before your EIN application helps is if you want to use the IRS online EIN application, which provides an EIN immediately. The online application requires either an SSN or ITIN. Most non-residents skip this and use the fax method, which works without any personal tax ID number.

Wyoming LLC Formation Requirements (No ITIN Needed)

When is an ITIN required for LLC owners?

An ITIN is required when you personally need to file a US federal tax return. The IRS requires a taxpayer identification number on every tax return, and non-residents without an SSN must use an ITIN. Several specific situations trigger this requirement for Wyoming LLC owners.

Situation 1: US-Source Income

If your Wyoming LLC earns income that is effectively connected with a US trade or business (ECI), you have a US tax filing obligation. Examples include revenue from services performed physically in the US, rent from US real estate, and income from a US-based business operation with employees or a fixed place of business in the US. Filing the required US tax return (Form 1040-NR) requires an ITIN.

Situation 2: Claiming Tax Treaty Benefits

If you want to claim benefits under a US tax treaty with your home country (reduced withholding rates, exemptions), you must file a US tax return. Filing that return requires an ITIN. For example, if a US client withholds 30% on payments to your LLC and your country's tax treaty reduces that rate to 0%, you need an ITIN to file Form 1040-NR and claim a refund of the excess withholding.

Situation 3: US Real Estate Transactions

If your LLC buys, sells, or rents US real estate, you have US tax filing obligations regardless of your residency status. Rental income from US properties is always US-source income. The sale of US real estate triggers FIRPTA (Foreign Investment in Real Property Tax Act) withholding and requires a US tax return to claim any refund. Both situations require an ITIN.

Situation 4: Electing Corporate Tax Treatment

If your LLC elects to be taxed as a C-Corporation or S-Corporation (by filing Form 8832 or Form 2553), the tax filing requirements change. Officers and shareholders of US corporations may have personal US tax obligations that require an ITIN. This scenario is uncommon for non-resident single-member LLCs but applies to certain business structures.

Situation 5: Faster EIN Application

While not a legal requirement, having an ITIN allows you to use the IRS online EIN application at irs.gov. The online application issues an EIN immediately, compared to 4-8 weeks for the fax method. Some LLC owners obtain an ITIN first purely for this convenience. However, most non-residents simply use the fax method and avoid the ITIN application entirely.

When is an ITIN not needed for LLC owners?

Most non-resident Wyoming LLC owners who run online businesses serving international clients never need an ITIN. If your LLC has no income effectively connected with a US trade or business, you have no US personal tax filing obligation, and therefore no need for an ITIN.

Online Businesses with Non-US Clients

If you run a SaaS company, e-commerce store, consulting firm, or freelance business from outside the US and your clients are located outside the US, your LLC typically has no US-source income. The income is sourced to where the services are performed or where the business operations occur. A non-resident performing services entirely outside the US generally has no US-source income and no US tax filing obligation.

Digital Products and Services Delivered Remotely

Non-resident LLC owners who sell digital products, online courses, software subscriptions, or remote consulting services from their home country do not generate US-source income simply because they use a US LLC, US bank account, or US payment processor. The source of income depends on where economic activity occurs, not where the business entity is registered.

Foreign-Owned Disregarded Entity with Form 5472 Only

A single-member Wyoming LLC owned by a non-resident is a disregarded entity for US tax purposes. The LLC itself does not file an income tax return. However, it must file Form 5472 with a pro-forma Form 1120 to report transactions between the LLC and its foreign owner. Filing Form 5472 does not require an ITIN. The form uses the LLC's EIN. Learn about Form 5472 filing requirements.

Banking and Payment Processing

Fintech banks like Mercury and Relay do not require an ITIN. They verify non-resident LLC owners using the LLC's EIN, Articles of Organization, operating agreement, and foreign passport. Stripe also does not require an ITIN. These platforms use the LLC's EIN for tax reporting (Form 1099-K) and verify the owner's identity with a passport. Read the full guides on Mercury Bank for Wyoming LLC and US banking for non-residents.

What is the difference between EIN, ITIN, and SSN?

The IRS issues three types of taxpayer identification numbers: EIN for businesses, SSN for US citizens and authorized residents, and ITIN for individuals who need to file US taxes but cannot get an SSN. Each serves a distinct purpose in the US tax system.

EIN (Employer Identification Number)

The EIN is your LLC's tax identification number. The IRS assigns it when you submit Form SS-4. Every Wyoming LLC needs an EIN to open a bank account, register for payment processors, file tax returns, and hire contractors. The EIN is tied to the business entity, not to any individual. If you sell the LLC, the EIN transfers with the business. Non-residents obtain an EIN by faxing Form SS-4 without needing an SSN or ITIN. Read the detailed guide on how foreign nationals get an EIN.

SSN (Social Security Number)

The SSN is a 9-digit number the Social Security Administration (SSA) issues to US citizens, permanent residents, and authorized work visa holders. Non-residents who have never worked in the US on an authorized visa do not have an SSN and cannot obtain one. The SSN is used for personal income tax filing, credit reporting, and identity verification. It is not required for Wyoming LLC formation or EIN application. Learn more at Do I need an SSN to form an LLC?

ITIN (Individual Taxpayer Identification Number)

The ITIN is the IRS's solution for individuals who need to file US tax returns but do not qualify for an SSN. ITINs are issued through Form W-7 application. The ITIN is exclusively for tax filing purposes. It does not authorize work in the US, establish immigration status, or provide eligibility for Social Security benefits. The ITIN expires after three consecutive years of non-use on a tax return. Read the step-by-step guide on how to get an ITIN for your LLC.

Do I need an ITIN to open a US bank account?

No. Fintech banks like Mercury and Relay accept non-resident Wyoming LLC owners with only an EIN and foreign passport. You do not need an ITIN or SSN to open a business bank account at these institutions. Traditional banks typically require an SSN or ITIN, but fintech banks have streamlined processes designed for international entrepreneurs.

Banks That Accept EIN Only (No ITIN Required)

Mercury Bank is the most popular choice for non-resident Wyoming LLC owners. Mercury accepts applications with Articles of Organization, EIN confirmation letter (CP 575), operating agreement, and foreign passport. The application is 100% online with no US visit required. Relay Bank offers similar accessibility for non-residents. Both banks provide checking accounts, debit cards, ACH transfers, wire transfers, and integrations with accounting software.

Wise Business provides multi-currency accounts including USD. Non-residents can receive payments in USD, hold balances, and convert currencies at the mid-market rate. Wise is not a full banking replacement but works well alongside Mercury or Relay for international transfers. Read the complete guide on banking without SSN.

Banks That Require SSN or ITIN

Traditional banks including Chase, Bank of America, Wells Fargo, and Citibank generally require the LLC owner to have an SSN or ITIN. Some traditional banks also require an in-person branch visit. For non-residents who specifically need a traditional bank account, obtaining an ITIN first is one path. However, most non-resident LLC owners find that Mercury, Relay, and Wise meet all their banking needs without an ITIN.

How does ITIN affect my US tax filing obligations?

Having or not having an ITIN does not change your tax obligations. Your tax filing requirements are determined by the type of income your LLC generates and whether that income is US-source. The ITIN is simply the number you use on your tax return when filing is required.

Form 5472 Filing (No ITIN Needed)

Every foreign-owned single-member Wyoming LLC must file Form 5472 with a pro-forma Form 1120 annually by April 15. This form reports reportable transactions between the LLC and its foreign owner, including capital contributions, distributions, loan payments, and service payments. Form 5472 uses the LLC's EIN, not the owner's ITIN. You can file Form 5472 without an ITIN. The penalty for non-filing is $25,000 per form. Learn more about Form 5472 requirements.

Form 1040-NR (ITIN Needed)

Non-resident aliens who earn income effectively connected with a US trade or business must file Form 1040-NR (US Nonresident Alien Income Tax Return). This form requires an ITIN. If you have US-source income from your Wyoming LLC, you must obtain an ITIN and file Form 1040-NR. The filing deadline is April 15 for employees receiving wages or June 15 for those without US wages.

Tax Treaty Benefits and Form W-8BEN

Non-residents can claim tax treaty benefits by filing Form W-8BEN (Certificate of Foreign Status) with US clients or payment processors. Form W-8BEN can be filed with or without an ITIN. However, if withholding has already occurred and you need to claim a refund, you must file Form 1040-NR, which requires an ITIN. Having an ITIN on Form W-8BEN strengthens your treaty claim and reduces the likelihood of withholding.

State Tax Filing

Wyoming has no state income tax, corporate tax, or franchise tax. Wyoming LLC owners have no state tax filing obligations regardless of ITIN status. The only Wyoming state requirement is the $60 annual report filed with the Secretary of State, which does not require an ITIN.

How do I get an ITIN if I need one?

If you determine that you need an ITIN, you apply by submitting IRS Form W-7 with your federal tax return and identification documents. The IRS processes ITIN applications in 7-11 weeks. There are three submission methods: mail, Certifying Acceptance Agent (CAA), and IRS Taxpayer Assistance Center.

Form W-7 Application

IRS Form W-7 (Application for IRS Individual Taxpayer Identification Number) is a 2-page form that collects your personal information, reason for applying, and identification details. You must attach the federal tax return that creates your filing obligation (usually Form 1040-NR for non-residents). The IRS will not process Form W-7 without a tax return unless you qualify for a specific exception.

Required Documents

• Completed Form W-7
• Federal tax return (Form 1040-NR for non-residents)
• Original passport or certified copy from the issuing agency
• Additional identification if passport does not contain a photograph, name, date of birth, and country of citizenship

Three Submission Methods

1. Mail: Send Form W-7, tax return, and original passport (or certified copy) to IRS ITIN Operation, P.O. Box 149342, Austin, TX 78714-9342. The IRS returns your passport within 60 days of receipt.
2. Certifying Acceptance Agent (CAA): A CAA verifies your identity and documents in person, then submits the application to the IRS on your behalf. You keep your original passport. CAAs charge $50-$275 for their services.
3. IRS Taxpayer Assistance Center (TAC): Visit an IRS office in the US with your documents. The IRS agent verifies your identity on the spot. This requires a US trip.

Read the complete step-by-step guide on how to get an ITIN for your LLC.

What is the ITIN application timeline and process?

The ITIN application process takes 7-11 weeks from submission to receiving your ITIN number. Processing times vary based on submission method and IRS workload. Peak processing times occur during January through April (US tax season).

Step-by-Step Timeline

ITIN Renewal

ITINs expire if not used on a federal tax return for three consecutive years. Expired ITINs can be renewed by submitting Form W-7 with the expired ITIN number, a valid tax return, and identification documents. Renewal processing takes the same 7-11 weeks. The IRS sends renewal reminders via mail to the address on file.

Cost of ITIN Application

The IRS does not charge a fee for ITIN applications. The only costs are potential CAA fees ($50-$275 if using an acceptance agent), certified passport copy fees ($10-$50 depending on your country), and postage for mailing the application. Most applicants spend under $100 total. Using a CAA is recommended because you keep your original passport during the 7-11 week processing period.

What are common ITIN mistakes LLC owners make?

Non-resident LLC owners frequently make errors related to ITINs that cause application rejections, unnecessary applications, or missed filing obligations. Avoiding these mistakes saves time, money, and potential IRS penalties.

Mistake 1: Applying for ITIN Without a Filing Obligation

The most common mistake is applying for an ITIN when you have no US tax filing requirement. The IRS rejects ITIN applications that do not include a valid federal tax return or qualifying exception. If your Wyoming LLC has no US-source income, you likely have no filing obligation and the IRS will deny your application.

Mistake 2: Confusing ITIN with EIN

Some LLC owners believe they need an ITIN to form their LLC or open a bank account. This confusion delays business setup. Your LLC needs an EIN (obtained via Form SS-4), not an ITIN. Fintech banks accept the EIN and passport for account opening.

Mistake 3: Sending Original Passport Without Backup

If you mail your original passport with the ITIN application, the IRS holds it for up to 60 days. During this time, you cannot travel internationally. Use a Certifying Acceptance Agent to verify your documents locally and keep your passport. Alternatively, obtain a certified copy from your country's passport-issuing authority.

Mistake 4: Not Filing Form 5472

Some LLC owners focus on the ITIN question and forget that Form 5472 is required regardless of ITIN status. Every foreign-owned single-member LLC must file Form 5472 by April 15 annually. The $25,000 penalty for non-filing applies even if the LLC had no income. This filing uses the LLC's EIN, not an ITIN.

Mistake 5: Letting ITIN Expire

If you obtain an ITIN and then do not use it on a federal tax return for three consecutive years, it expires. Renewing an expired ITIN requires resubmitting Form W-7 with documentation. If you obtained an ITIN, use it on your tax return every year or be prepared to renew when you need it again.

Mistake 6: Using the Wrong Tax Form

Non-residents must file Form 1040-NR (Nonresident Alien Income Tax Return), not Form 1040. Filing the wrong form can trigger IRS processing errors, delayed refunds, and incorrect tax calculations. Ensure your tax preparer understands non-resident filing requirements.