how can I add the text: "IVA Incluido" next to the price in category view and the frontpage
also how can I remove the blank space between the price and euro icon
thank you

Those you are asking are 100% custom modifications. (Because they have nothing to do with our Template, they are exactly the same in official Virtuemart Core,. And you want to change how they work/look). Unfortunately we don't provide free support or step-by-step instructions for custom coding modifications.

Normally, I need to ask you to purchase premium support:
www.flexiblewebdesign.com/premium-support

But since your inquiries are relative simple to resolve (won't require a full 1-hour suppoer service), here are the solutions:

1- To delete space between euro symbol and the price, see the screenshot:




2- To add "tax included" (or basically anything you want) after the price tag, there is no easy way to do it via Virtuemart Backend, you need coding modifications.
So, open this PHP file:
/templates/YOUR_TEMPLATE/html/com_virtuemart/sublayouts/prices.php

find this line:
and change it with this:
and that's it
The result will be:




Regards.
Support