LLC Bank Account Setup: What To Bring, What Banks Actually Check

Updated: August 2026 · Industry Advisors · Education, not legal or tax advice.

Opening a business bank account for an LLC is one of the fastest steps in formation — and one of the most commonly re-done because the founder walked in without the right paperwork. Banks have tightened know-your-customer standards in the last three years. The 15-minute account opening of 2019 is now a 45-minute session with a personal banker.

Here is what banks actually check, what to bring, and how to avoid the second trip.

Why A Separate Business Account Is Not Optional

Commingling personal and business funds is the single most common reason courts "pierce the corporate veil" in an LLC lawsuit. If a plaintiff can show your LLC's bank account was effectively your personal account, they can argue the LLC never operated as a separate legal person — and reach through to your personal assets.

A dedicated business account also matters for:

• IRS audit posture — a clean paper trail is faster to defend
• S-Corp election prerequisites — distributions must be traceable from the business account to the owner
• Bookkeeping — categorizing transactions is 5x faster with a dedicated account
• Payment processors — Stripe, Square, and PayPal all require a business bank account for business-level features

The Paperwork Banks Actually Ask For

The Bank Secrecy Act and FinCEN's Customer Due Diligence Rule require every bank to collect and verify specific information before opening a business account. Bring:

Entity-Level Documents

• Articles of Organization or Certificate of Formation — the stamped filing from your Secretary of State. A screenshot of the SoS record is not enough.
• EIN confirmation letter — the IRS CP-575 letter you received when the EIN was issued, or a printed IRS EIN Verification Letter (147C) if you lost the original.
• Operating Agreement — required by many banks even though it's not filed with the state. Multi-member LLCs must show it; single-member LLCs are asked to show it about half the time.
• Beneficial Ownership Information — banks collect the same 25%-owner + control-person data that FinCEN's BOI report requires.
• Certificate of Good Standing — not always required, but Wells Fargo, Bank of America, and Chase have started asking. $10–$50 from your Secretary of State.

Owner-Level Documents

• Government photo ID — driver's license or US passport for each authorized signer
• Second form of ID — many banks require a second document (Social Security card, birth certificate, or a utility bill within 30 days)
• Home address verification — the bank compares this to what's on file with credit bureaus

What Banks Are Actually Checking Under The Hood

The paperwork is only half the process. Behind the counter, the bank is also running:

• OFAC screening — sanctions and terrorism lists against every named party
• ChexSystems check — the banking equivalent of a credit report; unpaid bank fees or fraud history can block account opening
• Entity status confirmation — a query against your Secretary of State's live database to confirm the LLC is in "Active" or "Good Standing" status
• NAICS code match — the industry code you disclose is compared to the bank's risk tables. Some codes (marijuana-adjacent, adult entertainment, cryptocurrency-forward businesses, money services) are automatically declined

Common Reasons Account Openings Get Rejected

• Entity not showing as active — usually a filing delay; wait 24–48 hours and try again
• EIN not matching the entity name — the IRS record and the SoS record must match exactly, including capitalization of "LLC" vs "L.L.C."
• Owner in ChexSystems — an unresolved dispute from another account blocks openings for up to 5 years
• Missing beneficial owner data — every 25%-or-more owner must be documented; miss one and the account cannot open
• Address mismatch — the LLC's registered address on the Articles must match a real deliverable address; virtual mailboxes are increasingly flagged

Picking A Bank

For a first LLC, three tiers to consider:

Big Four National Banks

Chase, Bank of America, Wells Fargo, Citi. Physical branches everywhere, strong integration with credit-card processing, established business-lending relationships. Monthly fees typically $15–$25 with waivers for minimum balances or activity thresholds.

Regional And Community Banks

Faster underwriting on business loans, more relationship-driven service, often lower fees. Better fit for founders who plan to borrow within 12–24 months. Business bank accounts often $0–$15/month.

Business-First Digital Banks

Mercury, Bluevine, Relay, Novo. Fast online onboarding, no branches, good integration with accounting software. Monthly fees usually $0 for basic accounts. Cash deposits are the constraint — digital-first banks either don't accept cash or charge for it.

The 45-Minute Checklist

Before you walk in (or start the online form):

1. Confirm the LLC shows "Active" on your Secretary of State's business search
2. Have the EIN confirmation letter (CP-575) on hand as a PDF and printed
3. Have the Operating Agreement signed by all members
4. Order a Certificate of Good Standing if the bank has requested one
5. Pull ID for every authorized signer
6. Confirm your NAICS code matches what you'll tell the banker
7. Have $100–$500 in the personal account you'll transfer for the initial deposit

With that stack ready, the account opens in one visit.

The Everyday Owner's Blueprint includes the bank-account setup walk-through, a printable pre-visit checklist, and templates for the Operating Agreement and Certificate of Good Standing request.

Industry Advisors · 30 Wall Street, New York, NY 10005. Education, not legal or tax advice.