Is there a way to automatically cancel invoices partially and write the remainder of the invoice off

We generate invoices with a 12 month accrual rule.  When the customer does not pay after several months we want the ability to cancel the invoice for the remaining months, but write off the first few months where the customer had received the product but did not pay for it.  So for example if the invoice was for $1200 and the customer did not pay after three months, we want to cancel the invoice for the remaining 9 months and write off the first 3 months to bad debt.  Is there a way to handle this systematically?