A stand alone billing system.  Supplement the POS system to direct bill customers for house accounts (city ledger).  Post invoices created by the POS to create and bill statements.  Track the ageing of unpaid invoices.  Apply payments to specific invoices.

Create invoices for product or services, adding sales taxes as needed.  Handles tax exempt transactions.  Print invoices to include with statements.  Track ageing of unpaid invoices.  Apply payment to specific invoices. 

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