Exclude Disputed Transactions from the Calculation of Late Charge Transactions

How to Exclude Disputed Transactions from the Calculation of Late Charge Transactions if Client if not using Collection Module?

We've a requirement of excluding Disputed Transactions from the calculation of Late Charge Transaction, We are populating a Header DFF to identify Disputed Transactions in the AR Transaction Screen. Since we are not using Collection Module so there is no way we can think about to exclude Disputed Transactions from Late Charge calculation through Seeded functionallity.

Is there any way through which we can exclude such Disputed Transactions by any other means?