We're glad to have you here with us, Sulyvan.
Accepting credit card payments is a big step in running your business. To assist you on how to go about this new journey, I'll provide information on the options you have.
Let me start with QuickBooks Payment, you're able to accept payments in your QuickBooks Desktop account. You'll want to check your options here. After you sign up for QuickBooks Payments, you’ll need to connect your account to QuickBooks. You can check this article on the detailed steps to link them: Link your QuickBooks Payments account to QuickBooks Desktop.
Second, Square integration is also available in QB Desktop, though you'll need to integrate it via Commerce Sync. Learn more about the process here: Commerce Sync and Square.
Lastly, QuickBooks Point of Sale is also available. You can visit the website here. You can sync the payment from the POS to your Desktop account with financial exchange.
I'd love to hear from you if you have additional questions on the options available for you to use.