Banking & Payments · 2026-04-13
How to Prepare a KYB Documentation Package That Banks Accept
Banks reject business account applications when documents are missing, mismatched, or low quality. This guide walks through every document you need for a KYB-ready package -- Articles of Organization, EIN letter, Operating Agreement, lease, utility bill, and government ID -- with common mistakes explained for each.
Why Documentation Quality Determines Account Approval
When you apply for a business bank account, the bank runs KYB (Know Your Business) verification on your entity. Part of that verification is automated -- databases are queried, addresses are checked, entity registrations are confirmed. But part of it depends on the documents you provide.
The difference between founders who get approved on the first try and those who get rejected or stuck in manual review often comes down to documentation quality. Not whether the documents exist, but whether they are current, consistent, and complete.
A single mismatch -- your entity name spelled differently on your EIN letter versus your Articles of Organization -- can trigger a manual review or outright rejection. A missing Operating Agreement can delay your application by weeks. An expired Certificate of Good Standing suggests your entity might not be active.
This guide walks through every document in a bank-ready KYB package, what banks actually look for in each one, and the mistakes that cause rejections.
Document 1: Articles of Organization (Certificate of Formation)
What it is: The founding document filed with your state of formation that establishes your LLC as a legal entity. In Wyoming, this document is filed with the Secretary of State and is publicly searchable.
What banks check:
Entity name -- must match exactly what you enter on the bank application
State of formation
Date of formation -- entities formed very recently (within 7 days) receive extra scrutiny
Filing status -- whether the entity is active and in good standing
How to get it: Download a certified copy from your state's Secretary of State website. For Wyoming, go to wyomingbusinessonline.com, search for your entity, and download the filing.
Common mistakes:
**Name mismatch.** Your Articles say "Acme Holdings LLC" but your bank application says "Acme Holdings, LLC" (with a comma). Some banks treat these as different entities. Use the exact name as it appears on your Articles, including punctuation.
**Using an old version.** If you filed an amendment (name change, address change), provide the most recent version. Banks may check the state registry and see different information than what you submitted.
**Not providing a certified copy.** Some banks require the state-certified version with the filing stamp, not a screenshot of the online record.
Document 2: EIN Confirmation Letter (IRS CP 575 or SS-4)
What it is: The letter from the IRS confirming your Employer Identification Number. This is issued when you apply for an EIN, either online (you get the SS-4 confirmation immediately) or by mail/fax (you receive the CP 575 letter in 4-6 weeks).
What banks check:
EIN number validity
Entity name on the EIN letter -- must match your Articles of Organization exactly
Entity type (LLC, corporation, etc.)
Responsible party name
How to get it: If you applied online, you should have the SS-4 confirmation PDF. If you lost it, you can call the IRS Business line (800-829-4933) to request a verification letter (Form 147C), which takes 2-3 weeks.
Common mistakes:
**Name mismatch with Articles of Organization.** This is the single most common KYB documentation failure. If your Articles say "Acme Holdings LLC" but your EIN letter says "ACME HOLDINGS LLC" (all caps), most banks will accept it. But if one says "Acme Holdings" and the other says "Acme Holdings LLC," that is a mismatch that can cause rejection. The IRS sometimes drops the entity designation. If this happened, you need to update your EIN records with the IRS.
**Using the wrong letter.** The CP 575 is the official EIN assignment letter. A 147C is an EIN verification letter. Both work for most banks, but the CP 575 carries more weight.
**Providing a screenshot instead of the actual letter.** Banks want the PDF or a scan of the physical letter, not a screenshot of the IRS online tool.
Document 3: Operating Agreement
What it is: The internal governance document for your LLC. It specifies ownership percentages, member rights, management structure, and operational rules. Even for single-member LLCs, banks request this document.
What banks check:
Ownership structure -- who owns what percentage
All beneficial owners with 25%+ ownership (required by federal law)
Management structure (member-managed vs manager-managed)
Whether the agreement is signed and dated
How to get it: You should have created this when forming your LLC. If you do not have one, draft one before applying for a bank account. Templates are available from legal services, but ensure it accurately reflects your ownership structure.
Common mistakes:
**Not having one.** "I am a single-member LLC, I do not need an Operating Agreement." Many banks require it regardless. Not having one raises questions about entity legitimacy.
**Outdated ownership information.** If you added a partner since forming the LLC, your Operating Agreement should reflect the current ownership.
**Not signed.** An unsigned Operating Agreement is a draft, not a governing document. Sign it.
**Missing beneficial owner details.** Banks need full names, addresses, dates of birth, and ownership percentages for all 25%+ owners. Your Operating Agreement should at minimum list ownership percentages.
Document 4: Lease or Sublease Agreement
What it is: A legal agreement proving your business has the right to use a physical address. This can be a direct lease with a landlord or a sublease arrangement.
What banks check:
Business name on the lease -- must match your entity name
Physical address -- must be a commercial address, not classified as a CMRA
Lease dates -- must be current (not expired)
Signatures -- must be signed by both parties
Address type -- commercial lease carries significantly more weight than a virtual office agreement
How to get it: Sign a lease or sublease agreement at a physical commercial location where your business will maintain a presence.
Common mistakes:
**Using a virtual mailbox agreement instead.** A virtual mailbox service agreement is not a lease. Banks can tell the difference. A lease grants you rights to physical space; a virtual mailbox agreement grants you rights to receive mail at an address.
**Business name not on the lease.** If the lease is in your personal name but your bank application is under your LLC name, there is a disconnect. The lease should be in the entity name.
**Expired lease.** If your lease term ended and you are on month-to-month, get a renewal letter or a new lease document that shows current dates.
**Address does not match SOS records.** If your lease address is different from the principal office address on your state filing, update your SOS records first. Banks cross-reference these.
Document 5: Utility Bill or Service Bill
What it is: A bill from a utility provider (electric, water, gas, internet, phone) showing your business name at your business address. This serves as independent third-party verification that your business actually operates at the address.
What banks check:
Business name on the bill -- ideally matches your entity name
Address on the bill -- must match the address on your application and lease
Date -- must be recent (within 60-90 days)
Service type -- utility bills carry the most weight, followed by internet and phone
How to get it: Set up a utility or internet account at your business address in your business name.
Common mistakes:
**Not having one.** This is the document most founders overlook. Many new LLCs have a lease but no utility bill because they have not set up services yet. If you cannot get a utility bill, an internet bill or even a business insurance declaration page at the address can serve as a substitute.
**Bill in personal name.** If the utility is in your personal name, it does not verify your business at the address. Set up the account under your entity name.
**Old bill.** Banks want recent bills. A utility bill from six months ago does not prove current occupancy.
Document 6: Government-Issued Photo ID
What it is: A passport, driver's license, or national ID card for each beneficial owner (25%+ ownership stake).
What banks check:
Photo matches the person on the application
Name matches the beneficial owner information provided
Document is not expired
Document number is valid
Common mistakes:
**Expired ID.** Check expiration dates before applying. An expired passport will cause a KYB failure.
**Name does not match.** If your passport says "Jonathan Smith" but your Operating Agreement lists "Jon Smith" as the member, some banks will flag this. Use your legal name consistently across all documents.
**Missing IDs for additional owners.** If your LLC has two members with 50/50 ownership, you need IDs for both, not just the person filling out the application.
Assembling the Package
Before submitting any bank application, assemble your complete documentation package and verify consistency across all documents:
Name consistency check: The entity name should be identical (including punctuation and capitalization) on your Articles of Organization, EIN letter, Operating Agreement, lease agreement, and bank application.
Address consistency check: The principal office address on your SOS filing should match the address on your lease, any utility bills, and your bank application.
Date check: Ensure no documents are expired -- Certificate of Good Standing, lease, IDs.
Completeness check: Articles of Organization, EIN letter, Operating Agreement (signed), lease agreement (current), utility bill (recent), government ID (valid) for all beneficial owners.
Having this package ready before you apply eliminates the most common causes of delays, manual reviews, and rejections. For a quick pre-application checklist, see Bank KYB Checklist 2026. For a deeper understanding of how banks evaluate each element, read How Banks Verify Your Business: KYB Deep Dive 2026.