The miscellaneous extra charge feature in TherapyPM allows users to add an extra charge on top of the invoice amount. The extra charge option can be used for scenarios like late fees or any other penalties. 

How to add an extra charge to a patient invoice in the Billing module:

1. Click the Billing module and select the Patient Statement tab.

2. In the Patient Statement module, select the Manage Statement tab to view the created invoices.

3. Use the filter to pull up the required invoices.

4. Click the Action (...) button and select the extra charge option.

5. Click the Add Extra Charge button. Enter the extra amount, the description and click the Save button.

6. The table has all the information on the extra charges added to the invoice.