Most developers who start selling something, a plugin, a SaaS, a small store, run the money through whatever account already exists. It works right up until the first tax season, and then it quietly costs more than it ever saved. Here is what actually changes when the accounts are separate, and how to pick one without reading a single bank landing page.
The Bookkeeping Cost Of One Account
When Stripe deposits, supplier payments, ad spend and personal groceries all move through one checking account, you do not have a ledger. You have a filter problem. At year end someone has to classify every line by hand, and if that someone is an accountant, the rate is typically 150 to 300 dollars an hour. The work is not hard, it is long, and it is billed by the hour.
The second cost is quieter. Expenses that are obvious in a business account get missed in a mixed one, because nobody remembers what a 240 dollar charge in March was for. Deductions you never claim do not show up on any invoice, so this cost stays invisible.
The Legal Line You Are Drawing
If you registered an LLC or a corporation, that entity is supposed to sit between your business and your personal assets. The protection is not automatic, it gets argued. When someone wants to pierce the corporate veil, the first evidence they reach for is commingled funds, because it suggests the business was an extension of you rather than a separate thing.
A dedicated account with clean records is the cheapest counter evidence available, and at several online banks it costs zero dollars a month.
Fees Are Not The Deciding Factor
Monthly maintenance runs from zero at online banks to 30 dollars or more at traditional ones, usually waived if you keep a 1,500 to 5,000 balance. That spread is small next to the fees nobody reads about.
Transactions: traditional accounts include 200 to 500 free per month, then charge 25 to 50 cents each. Run 1,000 small transactions on a 300 transaction plan and the overage becomes the real bill.
Wires: 15 to 30 dollars domestic and 35 to 50 international at traditional banks. If you pay overseas contractors or suppliers every month, multi currency accounts exist for exactly this problem.
Cash: online only banks generally do not accept cash deposits. If you handle cash at all, that single requirement settles the question and points you at a bank with branches.
Integrations Decide Your Monthly Workload
The bank sits in the middle of your financial stack, so its integrations decide how much of each month goes to admin.
A reliable bank feed into QuickBooks, Xero or Wave means transactions import themselves and the books stay close to real time. A bad feed means CSV exports and manual matching, every month, forever.
Processor settlement matters just as much. Fees deducted before deposit, refunds, and settlement timing all have to land in your accounting system correctly, or deposits will never reconcile against revenue.
Payroll comes later and follows the same rule. Banks that connect to Gusto, ADP or Paychex let payroll funding and tax payments run without a person moving money between accounts.
The Takeaway
Open the separate account earlier than feels necessary, then choose the bank by answering three questions: do you handle cash, how many transactions do you run, and do you pay anyone internationally. Those three answers eliminate most options faster than any comparison table.
The longer guide, with account types, fee structures and the integration details, is here: https://www.afcommerce.com/business-banking/
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