Firstly I apologize if the title is confusing as I am a bit confused by this myself.
We have a business requirement for adding Products to CRM that are tax exempt and Products that are not tax exempt.
Also we have customers that qualify for tax exemption and customers that don't qualify for tax exemption.
Then we have customers that qualify for tax exemption but the product(s) they wish to buy don't qualify for tax exemption.
On the Order form, I have created an additional field for the VAT (Value Added Tax) rate.

What we could have as an Order is someone who qualifies for VAT exemption, buy a product that is VAT exempt and buys another product that isn't VAT exempt.
On emails and document templates I think I would have to include both the 'Price Per Unit' field and the custom 'Price Per Unit inc. VAT' fields which would confuse someone if they see two different prices.
Is there a way to show the one price field for each product bought on emails and templates no matter if it's VAT exempt or not?