How do I include a square credit card link on an invoice

Hi mikep-endeavours,

Welcome to Community!  QuickBooks Online Payments is a dynamic way to enable your customers to pay directly from their invoices, upon receipt.  I can see the benefit of providing the option to use a Square credit card.  However, this is not available at this time.  To review the accepted payment methods, click here.

Please feel free to reach out again with other questions.  We would be happy to help!