Vat problem in intra-community sale

Hi,

The type is decided automatically by the function getTaxType which is called by the getTax function itself to know what is the type of the current user based on his billing or shipping address. If he fills the address_company field, he will be considered as a company, otherwise, an individual.

Modifying the function will be simpler.
You can just override the function with a plugin. You would have to either override the whole class file, or use the onHikashopGetTax trigger in a plugin to reload the taxes yourself, or recalculate all the taxes yourself using the same principle than the TaxCloud plugin.
Modifying the function in the core file will be way easier.

Hi,

There is no documentation about it. It's a new trigger that has been added recently.

The parameters are:
onHikashopGetTax( &$class, $zone_id, $tax_category_id, $type, &$matches, &$taxPlans)

$class : the currency class
$zone_id : the id of the current zone of the customer
$tax_category_id : the id of the tax category of the current product for which we're getting the tax rate
$type: the type of user that was calculated in the getTaxType function
$matches: an array of objects containing the tax rules and tax rates data that were loaded based on the previous parameters
$taxPlans: an array of objects containing the tax rules and tax rates data that were loaded before the filtering on the zone_id

What you'll have to do is to load yourself the tax rules and tax rates data objects you want in $matches based on your own rules so that the system can then use them for the calculations.