Business bank account opening requirements

Documentation banks typically require for business accounts by entity type, plus the qualifying-deposit windows that trigger bonuses.

Entity type matters

Banks treat business accounts differently from personal accounts because the customer is a legal entity, and the bank needs to verify both the entity's existence and the individuals authorized to act on its behalf. The documentation requirements scale with the complexity of the entity. A sole proprietor operating under their own SSN faces almost the same paperwork as a personal customer. A multi-member LLC or a corporation faces a substantially longer list.

Knowing the documents your specific entity type requires — and having them ready on application day — is the difference between a 20-minute online opening and a multi-week back-and-forth. For bonus offers, the qualifying-deposit window typically starts running from account opening, so delays in approval directly compress the time you have to qualify.

Sole proprietor with SSN

The simplest case. You're operating a business in your own name, without a separate entity, and you intend to use your SSN as the tax ID. Banks generally treat this as a personal-plus opening: the standard ID documents (driver's license, passport, or other government ID), your SSN, your address, and a description of the business. Some banks ask for a DBA (doing business as) filing if you operate under a business name distinct from your legal name.

This is the easiest entity type for bank-bonus pursuit. The trade-off: as a sole prop with no separate entity, you have no legal-liability separation between your personal and business assets, and the account is essentially a second personal account in the bank's eyes.

Sole proprietor with EIN

If you've obtained an EIN (Employer Identification Number) from the IRS — typically because you have employees or because you've chosen to use an EIN for privacy or convenience — banks ask for the EIN confirmation letter (CP 575 or 147C) in addition to your personal ID. Some banks treat this identically to a sole prop with SSN; some treat it as a true business account with somewhat more documentation. Verify the specific bank's posture.

LLC requirements

Limited Liability Companies are the most common business-entity form for small businesses. Bank documentation typically includes:

• Articles of Organization filed with the state of formation.
• Operating Agreement (sometimes required, sometimes optional depending on bank and state).
• EIN confirmation letter from the IRS (CP 575 or a 147C letter if the original is lost).
• Certificate of Good Standing from the state (sometimes required for older entities or out-of-state formations).
• Personal ID of each member with ownership of 25% or more, plus one designated "control person" (the individual with significant managerial control), per the FinCEN beneficial-ownership rule.

Single-member LLCs (the most common shape for solo founders) are simpler. Multi-member LLCs require beneficial-ownership certification for each owner above the 25% threshold. Manager-managed LLCs require documentation of the manager's authority.

Corporation requirements (C-corp and S-corp)

Corporations carry the most documentation:

• Articles of Incorporation filed with the state of formation.
• Corporate Bylaws.
• Corporate Resolution authorizing the account opening and designating the individuals authorized to act on the account. Many banks provide their own resolution form.
• EIN confirmation letter.
• Certificate of Good Standing where required.
• Personal ID of each authorized signer.
• Beneficial-ownership certification for each 25%+ owner and the designated control person, per the FinCEN CDD rule.
• S-corp election confirmation (Form 2553 acceptance letter) if relevant — though banks typically don't require this for account opening.

The Customer Due Diligence (CDD) rule

The Financial Crimes Enforcement Network (FinCEN) requires banks to identify and verify the beneficial owners of legal-entity customers. The rule's "25% threshold" requires the bank to collect identification information for each individual who owns 25% or more of the equity interests of the legal entity, plus a single individual with significant managerial control (the "control prong"). The information collected typically includes name, date of birth, address, and SSN or other identification number.

For single-owner entities, this is mechanical: the bank documents you as both the 100% beneficial owner and the control person. For multi-owner entities, you'll need to gather the same information for each qualifying owner — having it ready before applying saves time.

The CDD rule is federal and applies at all US banks; banks may not waive it. Some banks have a longer in-house list that goes beyond the federal minimum. Read the bank's specific business-account opening checklist before applying.

Qualifying deposit timing

Business banking bonuses tie payout to a qualifying deposit (and sometimes additional activity) within a window after account opening. Common shapes:

• A single qualifying deposit at or above a threshold within 30 to 60 days of opening, maintained through a holding period.
• A cumulative deposit total above a threshold within the window.
• A deposit threshold plus a debit-spend or transaction-count gate.

The clock starts on account opening, not on application submission. If the bank's documentation review takes two weeks, you have less of the qualifying window left to fund and qualify. Build a buffer into your planning.

"Qualifying deposit" usually means new money — funds not already at the institution. Verify the specific bank's definition. Some count any inbound ACH or wire; some have a list of disqualifying source types similar to the personal direct-deposit landscape (see our direct deposit guide, though business deposit definitions are typically broader).

Running personal and business finances cleanly

For LLCs and corporations, mixing personal and business cash flows in the business account undermines the liability protection the entity is supposed to provide — courts can "pierce the corporate veil" when business and personal finances are treated as commingled. For sole proprietors, the legal protection isn't there to begin with, but bookkeeping clarity and tax preparation both benefit from separation.

A clean discipline: route business income to the business account, pay business expenses from it, and move funds to your personal account only via documented owner draws or scheduled payroll (for S-corps with shareholder-employees). Avoid using the business debit card for personal purchases even if you intend to reimburse. The bookkeeping burden of unsnarling commingled transactions is much larger than the discipline of keeping them separate.

For bonus purposes

The combination of higher documentation, longer approval timelines, and larger required deposits makes business bonuses more involved than personal ones. The payoff scales: business bonuses are typically larger in absolute dollar terms. But "set up a shell entity to chase a bonus" rarely makes financial sense — the formation cost, the annual filing burden, and the bookkeeping discipline outweigh most single bonus opportunities.

Business bonuses make sense when you already have a legitimate business that needs banking. The bonus is then a meaningful supplement to a relationship you'd be establishing anyway. See business banking bonuses for the listing context and methodology.