Hi, Garrett. I'll share some insights and walk you through the process.

Yes, we can do this to one invoice without setting up recurring transactions. When you send an invoice to your customers, they can save their payment info by checking the Save payment method to pay faster next time box. Before that, let them click first the Review and Pay button so they'll be directed to the payment page.

Once the invoice has been paid, learn how to record them in QuickBooks: Record invoice payments in QuickBooks Online.

I'll be right here to help if there's anything else you need. Enjoy the rest of your day, Garrett.