My appologizes for my maybe incorrect English, i hope you will understand me.

I have a problem with the dynamic filter. As i understand, you made this filter.

The search by price option, are prices excluding VAT/TAX.

So with a search from 10 till 20, products above 20 (we have 21% tax). So a product with a price of 24 will be shown in the list 10 till 20.
We have been scripting a while now, but can't figure out how we can get to filter for prices including tax.
Is there a way to solve this problem?