VAT tax filter

pmpro_austrian_vat_filter.php

<?php

/*
Plugin Name: PMPro VAT for Austria
Plugin URI: http://www.paidmembershipspro.com/wp/pmpro-customizations/
Description: PMPro: VAT for Austria
Version: .1
Author: Stranger Studios
Author URI: http://www.strangerstudios.com
*/
/*
  Tax solution for Austria

  Edit as needed, then save this file in your plugins folder and activate it through the plugins page in the WP dashboard.
*/
//add tax info to cost text. this is enabled if the danish checkbox is checked.
function customtax_pmpro_tax($tax, $values, $order)
{
    $rate_in_percent = 20; // Set to the required VAT/Tax rate

    $tax_rate = (float)($rate_in_percent/100);

    $tax = round((float)$values['price'] * $tax_rate, 2);
    return $tax;
}