Comerica business checking: small-business banking reference

How Comerica business checking is structured

Comerica business checking follows a tiered account model where the monthly fee and included transaction count scale together — lower-tier accounts carry lower fees and lower transaction allowances, higher-tier accounts carry higher fees and broader transaction capacity.

The tiered model is the standard structure among regional commercial banks, and Comerica follows it closely. The practical question for a business opening an account is not which tier exists but which tier fits the business's current transaction volume and likely six-month trajectory. Opening a tier too low and then generating per-item fees on every transaction above the monthly limit costs more in the medium run than simply selecting the next tier up at the outset.

The most commonly misunderstood aspect of business checking at Comerica is the definition of a "transaction" for fee-calculation purposes. Most regional banks count debits, credits, checks written, and deposited items separately toward the monthly transaction allowance. Cash deposits may be counted differently — often as a per-hundred-dollars fee on amounts above a cash-deposit threshold rather than as individual transactions. Businesses with heavy cash handling (retail, food service, professional services that accept cash payments) should specifically ask about the cash-deposit fee structure before selecting an account tier.

Balance-based fee waiver is the mechanism most business customers use to eliminate the monthly service fee entirely. A business that maintains a sufficient average daily balance — or, in some configurations, a combined relationship balance across business deposit and loan accounts — qualifies for the fee waiver each month without changing its account tier. The specific balance threshold for each tier is disclosed in Comerica's current Business Account Fee Schedule, which the bank publishes and updates periodically.

Entity types and account fit

Comerica business checking is available to a broad range of entity types, with documentation requirements that vary by how the business is legally organized.

Sole proprietors are the simplest case. A sole proprietor with a DBA (doing business as) registration, a federal Employer Identification Number, and a valid government-issued ID can generally open a Comerica business checking account in a single branch visit. The EIN is preferable to a Social Security Number even for a one-person operation because it separates the business's banking identity from the owner's personal credit file. The IRS EIN application is free and issues instantly online for most entity types.

LLCs and S-corporations require additional documentation: the LLC operating agreement or S-corp articles of incorporation, a resolution or consent of members/directors authorizing the account opening, and the names and identifying information for all beneficial owners with 25% or more ownership. The beneficial-ownership requirement reflects federal FinCEN Customer Due Diligence rules that all US banks must follow for business account openings.

Non-profits occupy a distinct category. Comerica's business checking product line includes account options designed for non-profit organizations, and the documentation set at opening differs from for-profit entities. The IRS Form 1023 determination letter, articles of incorporation, bylaws, and a board resolution authorizing account signatories are the typical documentation package. Non-profits should ask specifically about fee structures — some regional banks offer reduced-fee or no-fee checking for qualifying non-profit organizations, and the conversation is worth having before selecting a tier.

Partnerships and associations follow patterns similar to LLCs, with a partnership agreement or association bylaws substituting for the LLC operating agreement. Multiple authorized signatories are common in these structures, and the bank will want each signer on the account resolution.

Transaction limits and per-item fees

Transaction limits define the monthly volume of included items before per-item fees apply, and selecting the right tier is the primary lever a business has to control its monthly banking costs.

The rhythm of business checking fees at a regional bank like Comerica follows a predictable pattern. Each account tier includes a set number of monthly transactions. For the first several hundred transactions, the fee is zero because the tier includes them. Beyond that threshold, each transaction generates a per-item fee — typically a few cents per item, which sounds small but accumulates quickly for a business processing two or three hundred checks, ACH debits, and deposited items per month.

For businesses that already maintain records of their monthly transaction count, matching tier to volume is straightforward. For a business new to formal banking (moving from a personal account used for business purposes), estimating the monthly transaction count requires walking through a typical month's payment activity: how many vendors receive checks, how many ACH debits come through for subscriptions and utilities, how many customer payments are deposited. Over-estimating slightly is the lower-risk approach in the first few months.

Electronic transaction costs and paper check costs are sometimes priced differently within a tier's per-item fee schedule. ACH debits and credits often carry a lower per-item cost than paper checks in higher-tier accounts. This pricing structure creates a mild incentive toward electronic payment adoption — for a business that still runs a high volume of paper checks, the fee math may favor moving more payees to ACH over time. The CFPB's overview of electronic transfers provides useful background for business owners evaluating the shift from check to electronic payments.

Business Connect access from business checking

Comerica Business Connect, the bank's online business-banking platform, is the digital access layer that eligible business checking customers use to manage their accounts, initiate payments, and administer user access.

The relationship between business checking and Business Connect is direct: the checking account is the core deposit product, and Business Connect is the digital interface through which the business manages that account along with any other linked Comerica business accounts. Enrollment in Business Connect is typically part of the account-opening process or completed shortly after. A Comerica relationship banker walks new business clients through initial configuration, which includes setting up the primary administrator and establishing any sub-user access for staff who will need platform access.

The practical value of business checking paired with Business Connect grows with account volume. For a sole proprietor with light transaction activity, the platform's primary value is clean account visibility and the ability to initiate an occasional ACH or wire. For an LLC or S-corp with a bookkeeper, a controller, and a finance officer, the sub-user permission model and the payment-origination capability justify the relationship bank over a digital-only alternative that lacks the combined account-plus-platform structure.