How to Register a Surcharge/Additional Tax

View - Settings - Company - Settings per Module - Product - Price processing - Surcharge

How to register a Surcharge/Additional tax

Go to View - Settings - Company - Settings per Module - Product - Price processing and click on the Surcharge button.
Click the New button to add an additional tax or select a line and click Edit to change the settings for additional taxes.
Enter the tax code in the Group field.
Enter a Description of the tax if you wish.
Decide which processing rule to apply to the tax, from the Processing drop-down list.
Enter the Value that will be linked to the Processing value. If you for example selected % of cost price as the processing value, you might select 0.10 under Value to indicate that the Additional tax will be 10 per cent.
Click OK.

The additional tax has been added and can now be used.