From Accounting / Finance Charges, click on the button "Assess New Charges".
A new window will open up for you to complete all the options for your finance charges.
Enter the Charge On Date, which is the date that you want to assess the finance charges on.
Enter the Monthly Interest Percentage rate.
Enter the Minimum Invoice Balance. This is if you want to prevent assessing finance charges on invoices less than a certain dollar amount.
Enter the Minimum Charge Greater Than: This is if you want to prevent assessing finance charges that would equal less a certain dollar amount.
Once you have set all of your parameters, click to Assess Charges. A second window will open up and ask you to confirm the information you entered.
If you click yes, your finance charges will be assessed. If you need to make a change click No.