Most stores will typically show a singe price for each item, which might be either inc tax or ex tax. In this case, you should set your frontend.display.showtax config setting to 'n'. If you wish to show the tax associated with an item, set this to 'y'.

The way prices are displayed within Kartris depends on both of the following config settings:

• frontend.display.showtax
• general.tax.pricesinctax

The exact format will vary as follows:

Note that in all the cases in the table above, the item price is entered in the back end as 10.00, and the tax rate is 17.5%. It is the config setting general.tax.pricesinctax that determines whether this means £10.00 at checkout (£10.00 inc tax) or £11.75 (£10.00 plus 17.5% tax).

Note that if you enter prices into your store ex tax, and then switch to inc tax, the prices won't change (for example, an item entered as £10.00 won't suddenly become £11.75 – it will still be £10.00, just that this will now be considered inc tax instead of ex tax).