When looking at Invoices from the Invoices tab on the left side of your Admin Portal, Customer Billing tab, or a Customer Account, you'll notice all Invoices are split into three categories:
Future
The Invoice due date is in the future and has not yet become current or payable. These future Invoices can be adjusted on the Payment Plan on the Customer Billing tab.
Current
The Invoice is either due in the future but the invoice reminder has been sent out, making it payable, or the invoice is past due. Partially paid invoices also show up here.
Paid
The Invoice has been paid in full. These invoices are created manually by you, automatically because a Payment Plan exists on the customer's account, or at the time of enrollment.