Most banks will ask for your operating agreement, but not all require it

When you open a business bank account for an LLC, the bank's checklist usually includes your operating agreement. However, "ask for" and "require" are different things. Many banks will open the account without it if you have other documents in hand—typically your EIN letter from the IRS, a government-issued ID, and proof of your LLC's existence. Some banks treat the operating agreement as optional; others make it mandatory. The difference often depends on the bank's internal policy and how much scrutiny they apply to new business accounts.

If you don't have an operating agreement yet, you have two paths: provide what the bank will accept without it, or create one before you apply. Creating one takes a few hours and costs nothing if you write it yourself, or $50 to $300 if you use a legal template service. The bank's requirement matters less than whether you're prepared to show proof of your LLC's legal status and your authority to open the account.

Key Takeaways

  • Banks vary in whether they require an operating agreement; some will open your account with just an EIN letter and ID, while others will not proceed without it.
  • An operating agreement proves the LLC exists, shows who has authority to manage it, and protects you by documenting the ownership structure.
  • If you don't have an operating agreement, bring your EIN letter, articles of organization, government ID, and a resolution authorizing the account opening.
  • Creating an operating agreement yourself takes a few hours; using a template service costs $50 to $300 and is faster than waiting for a lawyer.
  • Some states do not require an operating agreement to exist at all, but banks may still ask for one as part of their account verification process.

What banks actually check when you bring an operating agreement

Banks use the operating agreement to verify three things: that your LLC is real, who is authorized to sign on the account, and whether there are restrictions on how the account can be used. The agreement shows the LLC's name, formation date, and member names. It also clarifies whether the LLC is member-managed (all owners can sign) or manager-managed (only designated managers can sign). This matters to the bank because they need to know whose signature is valid on checks and wire transfers.

The bank will also look for any clauses that restrict the account—for example, if the operating agreement says all withdrawals over $5,000 need approval from two members, the bank needs to know that. If you don't disclose it and a member later disputes a transaction, the bank could face a claim. That's why they ask: it protects them and protects you by creating a clear record of what was agreed to.

If your operating agreement is missing or incomplete, the bank may ask you to sign a resolution instead. This is a one-page document stating that the LLC authorizes the account opening and naming who can sign. It's not as thorough as an operating agreement, but it covers the immediate need.

Documents banks will accept instead of an operating agreement

If you don't have an operating agreement, bring these documents in this order of preference:

  • EIN letter from the IRS (Form SS-4 confirmation). This proves your LLC exists and has a tax ID. Most banks will accept this as your primary proof of business existence.
  • Articles of organization (filed with your state). This is the legal document that created your LLC. You can get a certified copy from your state's secretary of state office, usually for $5 to $25.
  • Certificate of good standing (from your state). This confirms your LLC is currently active and in compliance with state filing requirements. It costs $10 to $50 depending on the state.
  • Government-issued ID (driver's license or passport). The bank needs to verify your identity as the person authorized to open the account.
  • A resolution or authorization letter. You can write this yourself: a one-page statement signed by the LLC's owner(s) or manager(s) saying the LLC authorizes the account opening and naming who can sign checks and make transfers.

Bring all of these if you have them. The more documentation you provide, the less likely the bank is to ask for an operating agreement. If the bank still insists on an operating agreement after you've shown your EIN letter and articles of organization, ask the account manager whether you can provide a resolution instead, or whether you can create the agreement and come back.

When you need to create an operating agreement before opening the account

Some banks—particularly larger institutions and those with stricter compliance departments—will not open a business account without an operating agreement in hand. If the bank tells you this upfront, you have two options: create one yourself or use a template service.

Creating one yourself means writing a document that covers: the LLC's name and formation date, the names and ownership percentages of all members, whether the LLC is member-managed or manager-managed, how decisions are made, how profits and losses are split, and what happens if a member leaves or dies. You can find free templates online through your state's small business resources or through legal document sites. The document doesn't need to be fancy—it just needs to be clear and signed by all members or the manager.

If you use a template service like LegalZoom, Nolo, or Rocket Lawyer, you'll answer questions about your LLC's structure, and the service will generate a document customized to your state. This usually takes 24 to 48 hours and costs $50 to $300. The advantage is that the document is state-specific and less likely to raise questions from the bank. The disadvantage is the cost and the wait time.

Once you have the agreement, bring it to the bank along with your EIN letter and ID. The bank will review it, confirm that the person opening the account is authorized to do so, and proceed with account setup.

States that don't require an operating agreement but banks may ask for one anyway

Some states—including California, Delaware, and New York—do not legally require an LLC to have a written operating agreement. This means you can form an LLC and operate it without one. However, banks don't follow state law; they follow their own policies. A bank may still ask for an operating agreement even if your state doesn't require it, because the bank wants to verify the LLC's structure and who has authority to sign.

If you're in a state that doesn't require an operating agreement and the bank asks for one, you can explain this to the account manager. Many will accept your articles of organization and a signed resolution instead. If they won't budge, creating a simple operating agreement is still faster and cheaper than finding a different bank.

What happens if you open the account without an operating agreement and one didn't exist

If you open the account without an operating agreement and your LLC never had one, you're not breaking any law (in most states). However, you're creating a risk. Without a written agreement, disputes between members about how the account should be used, who can withdraw money, or how profits are split become harder to resolve. If a member later claims they didn't authorize a large transfer, or if the IRS questions the LLC's structure, you'll wish you had documentation.

The bank itself won't penalize you. But if a member sues another member over account access, or if the IRS audits the LLC, the lack of an operating agreement makes your position weaker. It's worth creating one even after the account is open—it costs nothing if you do it yourself and takes an afternoon.

How to speed up the account opening process

Call the bank before you visit or apply online. Ask the account manager directly: "Do you require an operating agreement to open an LLC business account?" Get a yes or no answer. If yes, ask whether a resolution or authorization letter would work instead. If the answer is still no, ask what specific information from the operating agreement they need—sometimes they only care about the member names and management structure, which you can provide in a one-page letter.

Prepare all your documents before you apply. Have your EIN letter, articles of organization, government ID, and a resolution ready. If you're creating an operating agreement, do it before you contact the bank, not after. This removes delays and shows the bank you're organized.

If you're applying online, upload everything the bank asks for plus your operating agreement (if you have it) or a resolution (if you don't). Don't wait for the bank to ask for more documents—provide them upfront. This reduces back-and-forth and speeds approval.

Frequently Asked Questions

Can I open an LLC bank account if I formed my LLC online but never created an operating agreement?

Yes, in most states. Your articles of organization filed with the state are enough to prove the LLC exists. Bring your EIN letter, articles, and ID to the bank. If they ask for an operating agreement, provide a resolution instead, or create a simple agreement before you apply. The bank cares that the LLC is real and that you're authorized to open the account—the operating agreement is one way to prove that, but not the only way.

What if I'm the only member of the LLC—do I still need an operating agreement?

No, and most banks won't require one for a single-member LLC. You'll need your EIN letter, articles of organization, and ID. Some banks may still ask for an operating agreement or a simple resolution, but single-member LLCs are lower risk to banks, so they're usually more flexible. Call ahead and ask.

If the bank opens my account without an operating agreement, can I add one later?

Yes. You can create an operating agreement at any time and keep it with your business records. The bank doesn't need to see it again unless you're changing who can sign on the account or modifying the account's authorized users. Creating one after the fact is still valuable for protecting yourself in disputes with other members or during an IRS audit.

What if my operating agreement says only one member can sign, but the bank wants both members to sign the account opening documents?

Tell the bank what the agreement says. The bank's account opening form and your operating agreement are two different things. The bank may require both authorized members to sign the account paperwork for their records, even if the operating agreement says only one member can sign checks later. Ask the account manager to clarify what they need and why.

Do I need an operating agreement if I'm opening a business account for an LLC I just formed yesterday?

Not immediately. Bring your EIN letter (if you have it—it can take a few days to arrive), your articles of organization, and your ID. If the EIN letter hasn't arrived yet, bring a copy of your Form SS-4 confirmation email from the IRS. Most banks will open the account with these documents. If they ask for an operating agreement, you can create one that day or provide a resolution instead.