Switching Business Bank Accounts Without Missing a Payment

Pull 12 months of statements and list every recurring debit and credit. Then add items that don't show up monthly:

• Payroll funding, payroll tax debits and benefits withdrawals.
• Vendor autopay, software subscriptions and loan or lease payments.
• Customer ACH, wires, card processor payouts and marketplace deposits.
• Quarterly and annual items: estimated taxes, insurance, annual renewals.
• Accounts that use the routing number: your accounting software, expense cards, merchant processor, tax portals, and any payment links or invoices that show bank details.

Also list the access details: who the signers are, which people have online banking logins, and who receives alerts. A switch is a good moment to remove former employees, reset permissions and decide whether outgoing payments on the new account need two approvers. Tell your accountant early too, so they can set up the new bank feed and agree the cutoff date that keeps reconciliations for the two accounts from overlapping or leaving a gap.

Give each item an owner, a new payment method and a target cutover date. If you keep a weekly cash forecast, it already lists most of the outflows, so start there.

Work from low risk to high risk, and don't cut over two critical systems in the same week:

1. Open and test the new account. Send a small transfer both ways so you know the routing details are right.
2. Move low-stakes vendors first. Software and utilities, where a failed payment is annoying but recoverable.
3. Move incoming payments. Update invoice templates, payment links and customer remittance instructions, and tell large customers directly. Keep the old account open to catch stragglers.
4. Move payroll and tax payments. Do this right after a payroll run, not just before one, and confirm your provider's cutoff for changing bank details. A test deposit may be required.
5. Move card and processor settlement accounts.
6. Reconcile both accounts to the penny at the end of the first full month of overlap.
7. Close the old account once nothing has posted for a full cycle.

Keep the old account open for at least one full billing cycle and, if you have quarterly or annual payments tied to it, until those have moved or passed. A common approach is to wait 60 to 90 days. Leave a small balance so late incoming payments don't bounce, and set an alert for any activity.

Confirm the bank's closing procedure in advance: some require a written request, hold final statements for a few days or charge a closure fee if you close within a set period after opening. Download all statements, since you may lose online access after closing.

Payments in flight are the part most likely to go wrong. US small businesses waited 28.8 days on average to be paid in early 2026¹, so an invoice issued before the switch may be paid well after it. Every unpaid invoice that shows the old bank details is a risk.

Reissue open invoices with new details only if the customer agrees, and confirm changes by phone or a known contact, not by email alone. Bank-detail change requests are a common fraud pattern, so tell customers how you'll communicate the change and that you will never change details through an unexpected message.

Use a short close-out list:

• Every recurring item on your inventory shows activity on the new account.
• No pending checks, ACH returns or wires are in flight.
• Payroll has run at least once from the new account, including tax deposits.
• The old account balance is transferred and the final statement is downloaded.
• Your accounting software's bank feed and reconciliation now point to the new account.

For a broader view of using more than one bank, including when to keep a backup account, see single versus multi-bank models. If you're also changing accountants around the same time, avoid doing both in the same month; the sequence in switching accounting firms helps.