/**
  * Returns the destination Country and State tax rate
  */
 public function get_tax_destination_rate()
 {
     $rates = array();
     if ($this->is_taxable() && self::get_options()->get('fflcommerce_calc_taxes') == 'yes') {
         $tax = new fflcommerce_tax();
         foreach ($tax->get_tax_classes_for_customer() as $tax_class) {
             if (!in_array($tax_class, $this->get_tax_classes())) {
                 continue;
             }
             $rate = $tax->get_rate($tax_class);
             if ($rate > 0) {
                 $rates[$tax_class] = array('rate' => $rate, 'is_not_compound_tax' => !$tax->is_compound_tax());
             }
         }
     }
     return $rates;
 }