I can guide you with adding the general payment option on your customers' invoice in QuickBooks Online.
At this time, we can only include customer payments methods if you’re signed up for QuickBooks GoPayments. This allows your customers to pay their invoices online (ACH) with their desired payment options. Once you've already signed up, you'll need to enable the online payment option on your QuickBooks.
Let me show you how:
Click on the Gear Icon.
Under Your Company, select on Accounts and Settings.
Click on Payments.
Click on Learn more besides QuickBooks Payments.
From there, you can enter the information needed for your customers’ payments.