Does QB payment portal collect payment when integrated with Squarespace or does Squarespace have to also be setup with payment portal?

Let me direct you in the right direction for support, RW.

QuickBooks Payments is an add-on feature that enables you to accept customer payments online seamlessly, significantly streamlining your payment processing. For assistance in setting up QuickBooks Payments, I recommend contacting Squarespace support. They will also be able to provide you with detailed guidance on the integration process, as well as answer any questions you may have about the costs of using the services together.

I'll leave these articles that you may use as reference in using QuickBooks Payments:

• QuickBooks Payments
• Common questions about QuickBooks Payments deposits

Come back to the Community if you have any other concerns about integrating apps into your company, RW. I'll be right here to help you out.