What payment types can I accept with Time and Billing?

You can manually apply payments for these payment methods: credit card, PayPal, wire, check or trust account.

You can link Time and Billing with your PayPal Business or Premier Account, and automatically receive PayPal and Credit Card payments, via a "Process Payment" button included on all electronic invoices. 

Time and Billing is not a merchant services provider and does not actually process credit card payments through its own system. It is a place to track and record payments, or a place to sync with PayPal (as the merchant services provider) to automatically track payments.