How to Open a Business Bank Account in Michigan: Documents and Steps

A new Michigan LLC with an approved Articles of Organization and a fresh EIN still has one practical step left before taking its first dollar of revenue: a dedicated business bank account. Skipping this step or delaying it tends to create accounting headaches and weaker financial records down the road. The guide below covers the documents Michigan banks commonly request, how requirements differ by entity type, and how to compare banks and credit unions before choosing one.

Why a Separate Account Matters

A dedicated business account keeps income and expenses separate from personal finances, which makes bookkeeping and tax preparation far more straightforward. It also signals professionalism to customers and vendors who pay by check or transfer, and it supports internal controls once a business adds employees or partners who need defined access to funds. Keeping finances separate also supports the practical observance of entity separateness for an LLC or corporation, though one commingled purchase does not automatically destroy liability protection by itself.

Documents Michigan Businesses Commonly Need

Banks set individual onboarding and identity-verification policies, so treat the following as commonly requested rather than a universal legal checklist. Confirm exact requirements with the specific bank or credit union before the appointment.

Most banks ask for government-issued photo identification for each owner or signer, EIN confirmation from the IRS, the filed Articles of Organization or Incorporation, and an operating agreement, bylaws, or partnership agreement where applicable. Many also request ownership and control information for beneficial-owner verification, the business address, any required licenses, and the opening deposit.

Documents for a Michigan LLC

How to Form an LLC in Michigan: Step-by-Step Filing Guide (2026) covers the Articles of Organization filing in detail, and Michigan DBA Guide: How to File a Certificate of Assumed Name covers the assumed-name certificate referenced above.

Documents for Sole Proprietors and Partnerships

A sole proprietor can sometimes use a Social Security number for federal tax purposes, but bank policy may still require an EIN before opening an account. Do not assume every bank follows the same rule on this point. A sole proprietor or partnership operating under a name other than the owner’s legal name usually needs the county-issued assumed-name or co-partnership certificate covered in Michigan DBA Guide: How to File a Certificate of Assumed Name. Partnerships should also bring their partnership agreement, since banks frequently want to see how authority is divided among partners before opening a joint business account.

How to Compare Banks and Credit Unions

A Michigan business does not generally need a bank headquartered in the state. Selection should weigh several factors: FDIC or NCUA insurance coverage, monthly fees and minimum-balance requirements, transaction and ACH or wire limits, cash-handling capacity for businesses with substantial cash sales, branch and ATM access, online and mobile banking tools, merchant-services integration, accounting-software compatibility, lending products for future growth, and customer-support quality. FDIC BankFind confirms FDIC insurance status for banks, and the NCUA Credit Union Locator does the same for federally insured credit unions.

Step-by-Step Account Opening

Form the legal entity with LARA first, then obtain the EIN from the IRS once the entity is approved. File any needed assumed-name certificate before opening the account if the business will operate under a DBA. Compare banks and credit unions using the factors above, then book an appointment or apply online. Submit the requested owner and beneficial-control information, make the opening deposit, and configure user permissions for any employees or partners who need account access. Connect the account to accounting software early, and keep copies of every document submitted in case the bank requests verification later.

Business Checking, Savings, Merchant, and Credit Accounts

A business checking account handles day-to-day transactions, while a savings account holds reserves separately. A merchant-services account processes card payments and is a distinct product from checking, even though many banks bundle the two together. A business credit card or line of credit serves financing needs and should not be confused with deposit accounts. Treating merchant processing and checking as the same product can lead to confusion about fees and settlement timing.

Common Mistakes

A few mistakes show up repeatedly when Michigan businesses open accounts. Using a legal name on the application not matching the LARA filing or EIN causes delays. Skipping a resolution or written authorization from the LLC or corporation can slow down approval. Commingling business and personal funds after opening the account undermines the separation the account was meant to create. Relying solely on a payment app without maintaining separate records leaves gaps in bookkeeping. Ignoring monthly fees or transaction limits until they show up on a statement costs money careful comparison would have avoided. Giving every employee full account access instead of tiered permissions increases internal risk. Losing the EIN confirmation letter or Articles of Organization after opening the account creates problems if the bank requests them again later.

FAQs

What documents do I need for a Michigan LLC account?

Most banks ask for the filed Articles of Organization, EIN confirmation, an operating agreement, government-issued ID for signers, and ownership information. Confirm the exact list with the chosen bank.

Can I use a personal account for my LLC?

It’s possible in practice, but it undermines the financial separation an LLC structure is meant to support and makes bookkeeping considerably harder. A dedicated business account is the standard practice.

Do I need an EIN?

Most banks request one regardless of entity type, even when federal tax rules might allow a sole proprietor to use a Social Security number instead. How to Get an EIN for a Michigan Business: Free IRS Application Guide covers the free IRS application process.

Does the bank need to be in Michigan?

No. A Michigan business can bank with any FDIC-insured bank or NCUA-insured credit union, regardless of where it’s headquartered.

Can I open online?

Many banks and credit unions offer online business-account applications, though some still require an in-person visit depending on the institution and account type.

What if I use a DBA?

Bring the accepted Certificate of Assumed Name from LARA or the county clerk, since the bank will likely want to verify the connection between the DBA and the underlying legal entity before accepting deposits under the new name.

Related Articles

Read the full SpotOnMichigan business formation series:

Sources

•            SBA - Open a Business Bank Account

•            IRS - Get an EIN

•            MiBusiness Registry

•            LARA Entity Search

•            FDIC BankFind

•            NCUA Credit Union Locator

•            FinCEN Beneficial Ownership Information

Disclaimer

This article is for general informational purposes only and is not legal or financial advice. Bank document requirements and beneficial-ownership reporting rules can change. Verify current requirements directly with the chosen financial institution and check FinCEN’s official page for the latest beneficial-ownership guidance.