The 7 Documents You Need for a US LLC, EIN and Banking
Direct answer: The core US LLC documents for non-residents fall into seven categories: a valid passport or government-issued ID, proof of residential address, the state-filed LLC formation document, an Operating Agreement, Form SS-4, the EIN confirmation letter, and proof of business activity. Not every item is required at every stage. Formation, IRS, bank, and fintech requirements differ, and no universal document set guarantees account approval.
Table of Contents
- Quick US LLC Document Checklist
- Why Banking Requirements Are Not Universal
- Valid Passport or Government-Issued ID
- Proof of Residential Address
- State-Filed LLC Formation Document
- Operating Agreement
- IRS Form SS-4
- EIN Confirmation Letter
- Proof of Business Activity
- How to Organize Your LLC Document Folder
- What Banks and Fintechs May Request in Addition
- Frequently Asked Questions
- Prepare Your US LLC Documents With Personal Support
Quick US LLC Document Checklist
| Document | Who Provides It? | When Is It Needed? | Always Required or Provider-Specific? |
|---|---|---|---|
| Passport or government ID | Founder | Identity and KYC checks | Common; accepted ID varies |
| Residential address proof | Founder | KYC or address verification | Provider-specific |
| State-filed formation document | Secretary of State | After formation; EIN and banking | Core company document |
| Operating Agreement | LLC or setup provider | Internal records and some KYC reviews | Important; sometimes requested |
| Form SS-4 | Founder or authorized preparer | EIN application | Required for the Form SS-4 route |
| EIN confirmation letter | IRS | After EIN assignment; banking | Commonly required for banking |
| Business activity proof | Founder or LLC | Enhanced KYC or source-of-funds review | Provider- and case-specific |
Why Banking Requirements Are Not Universal
LLC formation, EIN application, and banking are separate processes. Wyoming controls the state filing, the IRS controls the EIN process, and each financial provider applies its own KYC, address, industry, and risk rules.
Requirements can change with the provider, country, ownership, business model, and product. A complete folder helps, but never guarantees approval. If you are evaluating the structure, see our US LLC guide for Europeans.
Valid Passport or Government-Issued ID
For an international founder, a valid passport is usually the safest primary identity document. Some providers accept other government-issued identification. It should be current, readable, unaltered, and consistent with the application.
A passport is not normally filed with Wyoming or attached to Form SS-4. It is mainly used for identity verification by a setup service, bank, fintech, or payment provider. Multi-member companies may need IDs for additional owners or controllers.
Proof of Residential Address
This document connects the founder to the home address entered during KYC. Accepted evidence may include a recent utility bill, bank statement, government letter, or another official record. The details should match the application.
Do not confuse a residential address with the LLC’s registered office or operating address. A Registered Agent address serves a statutory purpose. It does not automatically qualify as the founder’s residential address or as an accepted physical business address. Our US LLC address guide explains the differences.
State-Filed LLC Formation Document
For a Wyoming LLC, the core formation filing is the Articles of Organization. Once accepted, the filed document establishes that the LLC was formed with the state. Keep the filed copy and any state confirmation in permanent company records.
The legal company name on later documents should match this record. The IRS advises legal entities to register with the state before requesting an EIN. Banks and fintechs commonly use the state-filed document to verify the entity’s name, jurisdiction, and existence. See the official Wyoming business forms or learn about Wyoming LLC formation support.
Operating Agreement
The Operating Agreement is the LLC’s internal governance document. It can record ownership, management, distributions, and signing powers. Even for a single-member LLC, it helps demonstrate control.
Wyoming does not require the Operating Agreement to be filed with the Secretary of State. That does not make it unimportant. A bank or fintech may request it as ownership or authority evidence, while another provider may not.
Want formation, EIN support, and Banking Readiness organized as one founder-led process? Choose Premium Launch — €1,190.
IRS Form SS-4
Form SS-4 is the application for an Employer Identification Number; it is not the confirmation that an EIN has been assigned. It records details such as the LLC’s legal name, addresses, responsible party, entity type, reason for applying, start date, and business activity.
Names and addresses should be consistent with the formation record and the intended company file. Keep a copy of the submitted form. For a foreign responsible party who does not have and is ineligible to obtain an SSN or ITIN, the current IRS Instructions for Form SS-4 say to enter “foreign” or “N/A” on line 7b. An ITIN is therefore not automatically required to form the LLC or obtain its EIN.
EIN Confirmation Letter
After assignment, the IRS confirmation—not the blank SS-4—serves as the strongest EIN evidence. This is commonly the original CP 575 notice. If that original is unavailable, the IRS provides confirmation routes that can include an eligible digital CP 575, an entity transcript, or Letter 147C, EIN Previously Assigned.
Keep the confirmation permanently and use the legal name and EIN exactly as shown. If the letter is missing, do not rush into a second EIN application. The IRS states that a business entity should have only one EIN. First use the IRS confirmation or recovery options. For the complete process, read how non-US residents obtain an EIN without an SSN.
Proof of Business Activity
This is not one universal form. It is a practical evidence category that helps a reviewer understand what the company does, where money comes from, and how the account will be used.
Depending on the provider and the company’s stage, useful evidence may include client contracts, signed service agreements, invoices, a working website or storefront, customer information, a clear business description, and realistic expected payment volumes. Source-of-funds questions may trigger requests for bank statements or additional records.
Pre-revenue founders should be transparent. Provide a coherent business description, planned markets, expected counterparties, and projected payment flows; never fabricate contracts, invoices, customers, or activity.
How to Organize Your LLC Document Folder
Create four folders: Founder ID and Address, State Formation, IRS and EIN, and Banking and Business Activity. Use clear names, retain complete pages, and separate originals from upload copies.
Before applying, compare the legal name, addresses, ownership percentages, responsible party, and business description across every document. Correct genuine errors through the appropriate issuer or filing process; do not edit official documents yourself.
What Banks and Fintechs May Request in Addition
Additional requests can include Initial Resolutions or Organizational Consent, an ownership chart, operating-address proof, licenses, customer or supplier details, source-of-funds records, transaction corridors, certified copies, or translations.
For example, Mercury currently lists formation documents, an IRS-issued EIN document, and identification among its core application materials, while also asking about the physical operating address, source of funds, and US operations. Other providers use different rules. Review Banking Readiness support and, if relevant, the current Mercury eligibility and document guide before applying.
Frequently Asked Questions
Yes, this can be possible. Current Form SS-4 instructions address foreign responsible parties who do not have and are ineligible for an SSN or ITIN. An ITIN is not automatically required for LLC formation or an EIN application.
Not automatically. Providers may distinguish between the registered address, mailing address, residential address, and physical place where the business operates.
No. It is an important internal record and may be requested to verify ownership or authority, but requirements are provider- and case-specific.
Use the IRS EIN confirmation options, which may include a digital CP 575, entity transcript, or Letter 147C. Do not submit a duplicate EIN application simply because the original notice is missing.
No. Providers independently assess eligibility, identity, addresses, industry, business activity, geography, ownership, and risk.
Prepare Your US LLC Documents With Personal Support
Premium Launch combines Wyoming LLC formation, EIN support without an SSN, structured document handover, and closer Banking Readiness preparation. It includes a 60–75 minute strategy call, data review where possible, payment-provider orientation, and 30 days of email support.
Not sure which level of support fits your situation? Book a 20-Minute Intro Call.
Bosse LLC provides practical setup support and administrative guidance only. We do not provide legal, tax, accounting or regulated financial advice. Government, bank, fintech and payment provider approvals cannot be guaranteed.
