Setting Up a Business Bank Account: Documents, Account Types, and Structure

Opening the account is a short task with long consequences. The account becomes the spine of your bookkeeping, and how you structure it decides how clean the books will be. Below is what to bring, what to ask, and how to set up accounts beyond the first checking account.

Documents to bring

Requirements vary by bank, but expect to provide:

Formation documents: Articles of Organization or Incorporation, stamped or approved by the state.
EIN confirmation letter (CP 575 or 147C). See getting an EIN.
Operating agreement or bylaws. Multi-member entities are more likely to be asked. See operating agreement guide.
Government-issued photo ID for each owner and signer.
Ownership information, including the percentage owned by each individual with a meaningful stake and the person controlling the entity. Banks collect this under customer due diligence rules. See beneficial ownership reporting.
DBA certificate if you operate under a trade name. See DBA and trade names.
Business license or professional license if relevant.
Initial deposit, documented as a capital contribution.
Resolution or certificate authorizing signers, for corporations or certain LLCs.

Choosing a bank

Points to compare:

Fees: monthly maintenance, minimum balance, transaction limits, wire and ACH costs, cash deposit fees.
Cash handling: if you take cash or checks, location and deposit options matter.
Software integration: compatibility with your accounting platform's bank feeds and payment processors.
Online and mobile features: remote deposit, multiple users, approvals, and permission controls.
Lending relationship: small business lines and cards may be easier with a bank that has your account history.
Insurance: check deposit insurance coverage, particularly for online-only providers or fintech accounts that partner with banks.
Service quality: local branch versus online-only, phone support, and how easily you can resolve issues.

Local banks and credit unions can be excellent for cash-heavy or lending needs. Online banks tend to have lower fees and stronger software integrations. Neither is universally better.

The account set that works

A small business usually benefits from several accounts, each with a job. All can be at the same bank or spread across institutions:

Operating checking: receives customer payments and pays regular expenses.
Tax savings: a separate account where you set aside a percentage of revenue or profit for income and sales tax. Transfer regularly. See estimated taxes guide.
Payroll account (optional): funds payroll and payroll taxes, so the required amount sits ready. Useful once you have employees. See payroll for new employers.
Profit or owner pay account: a place to accumulate funds for owner distributions, so pay is deliberate rather than random.
Operating reserve: cash cushion for slow months, often held in a high-yield savings account.
Sales tax account if you collect sales tax.

Some owners follow a system that allocates each deposit into percentages among accounts. Whatever proportions you choose, the point is a routine.

Cards and payment processors

A business debit card for everyday purchases, or a business credit card for expense tracking and float.
Payment processors (card readers, online payments, invoicing platforms) should deposit into the business account. Confirm deposit timing and how fees are handled: gross deposits with fees taken separately versus net deposits, which affect bookkeeping.
Employee cards with spending limits and clear rules, if applicable.

See business credit cards and personal guarantees.

Signers and controls

Limit signers to those who need authority.
Use two-step approval for payments above a threshold if the platform allows.
Enable alerts for large transactions and new payees.
Give bookkeepers view-only access when possible.
Store login credentials securely, and use multi-factor authentication.

Multiple entities

If you have more than one entity, each needs its own accounts. Do not let one entity's customers pay another's account. Intercompany transfers should be documented. See intercompany charges and agreements and one LLC or separate LLCs.

Naming accounts

Give accounts clear names in your accounting software (for example, "Operating checking," "Tax savings"), and match them to the bank feeds. Label owner-related accounts as such. Consistent naming avoids confusion for your bookkeeper and tax preparer.

Connecting to bookkeeping

Once accounts are open:

Connect bank feeds to your accounting software.
Enter opening balances as of the account start date.
Reconcile every month against bank statements.
Set up rules to categorize recurring items, but review them periodically.

See bookkeeping systems for small business.

Common pitfalls

Opening the account before the entity's paperwork is final, causing name mismatches.
Using the sole proprietor's personal account with a DBA and calling it a business account.
Failing to move existing customer payments to the new account.
Having too few accounts, so tax money gets spent.
Having too many accounts, so no one reconciles all of them.
Not understanding fee triggers, such as minimum balances.
Storing all funds at one institution beyond insurance limits without knowing it.

When to review

Revisit the setup annually. As revenue grows, you may want to add accounts, change banks, or add lending relationships. If you hire a bookkeeper or payroll provider, review access and permissions. For help designing a cash structure that supports your tax plan, AE Tax Advisors can assist, and a discovery call is an easy place to begin.