The Interest for new customers configuration gives you control of the default settings for the Charge interest on overdue amounts checkbox when you add a new customer to Minfos. 

To adjust the configuration: 

From the Minfos Launch Pad:

1. Click the Special menu and select Utilities.

The Utilities module is displayed.

2. Click the Config menu and select 1. Shop Configuration.

The Shop Configuration window is displayed.

3. Click the Customers tab. 

4. By default, the Un-tick charge interest for new customers checkbox will be unchecked, therefore the Charge Interest on overdue amounts checkbox will be checked in the Accounts tab when adding a new customer to Minfos. If you check the Un-tick charge interest for new customers checkbox, when you add a customer, you will need check the appropriate option for each customer.

5. Click OK to save.