What is the percentage taken when using Square invoicing

[Gabbie]

I sent a $600 invoice with sqaure. Once it was paid square had taking $17.70 out, leave $582.30. So does anyone know what's the cost to use there involves??

[GlassJudy]

Square's fee for an invoice that's paid via credit/debit transaction is 2.9% (=$17.40 for your $600 invoice) + $0.30, for a total of $17.70, which is what they charged you.  You pay nothing to Square if the invoice is paid by cash or check.

See this page for all of Square's charges:

https://squareup.com/pricing