Look no further, I have all the steps you'll need in adding your bank details to your invoices, @marianneallen-ma.You can add them to your invoices by adding custom fields, headers or footers to the invoices.
There's also an informative guide on adding bank details to your invoices for your convenience.
You may also consider connecting your account to Paypal or set up Direct Debit with GoCardless. Doing this allows your customers to pay their invoices online.
Furthermore, you can connect your bank and credit card accounts first using Open Banking. This way, QuickBooks will automatically download your recent transactions every night around 10 PM PT. Once your customers pay you online, you'll able to see their payments on the Banking page. All you have to is categorise and match them to any records you’ve already entered in QuickBooks.
Should you need further assistance with managing your QuickBooks account, feel free to visit us again. Thank you for reaching us here in the Community and have a great day.