You're free to do that these days if you'd like with Square Cash… it lets you build a balance on their system just the way Venmo does. But it's not required and

You're free to do that these days if you'd like with Square Cash… it lets you build a balance on their system just the way Venmo does. But it's not required and I personally disable that. I don't like to have random balances on money-transfer startups' system, especially since it's uninsured.