Say whether the chosen option’s price includes tax.

Each example below is the actual published output of the Variation price tax note widget for a sample product, Refined linseed oil, in a lab store that shows prices including tax: the 250 ml size is in the standard class at 20% VAT, the 500 ml and 1000 ml sizes in the Reduced rate class at 5%. On a product page the note changes to the size the shopper picks.