PHP code to determine VAT rate for your Belgian services-business

gistfile1.txt

<?php
class VatHelper{
    private $countrycodes;
    private $vatrates;

    public function __construct(){
        $this->countrycodes = array('Austria'=>'AT','Belgium'=>'BE','Bulgaria'=>'BG','Croatia'=>'HR','Cyprus'=>'CY','Czech Republic'=>'CZ','Denmark'=>'DK','Estonia'=>'EE','Finland'=>'FI','France'=>'FR','Germany'=>'DE','Greece'=>'EL','Hungary'=>'HU','Ireland'=>'IE','Italy'=>'IT','Latvia'=>'LV','Lithuania'=>'LT','Luxembourg'=>'LU','Malta'=>'MT','Netherlands'=>'NL','Poland'=>'PL','Portugal'=>'PT','Romania'=>'RO','Slovakia'=>'SK','Slovenia'=>'SI','Spain'=>'ES','Sweden'=>'SE','United Kingdom'=>'GB');
        $this->vatrates = array('AT' => 20,'BE' => 21,'BG' => 20,'HR' => 25,'CY' => 19,'CZ' => 21,'DK' => 25,'EE' => 20,'FI' => 24,'FR' => 20,'DE' => 19,'EL' => 24,'HU' => 27,'IE' => 23,'IT' => 22,'LV' => 21,'LT' => 21,'LU' => 17,'MT' => 18,'NL' => 21,'PL' => 23,'PT' => 23,'RO' => 20,'SK' => 20,'SI' => 22,'ES' => 21,'SE' => 25,'GB' => 20);
    }

    public function getTotalPrice($licenseamount,$selectedcountry,$vatid){
        $vatrate = $this->getVatRate($selectedcountry,$vatid);

        return $licenseamount +  (($licenseamount*$vatrate)/100);
    }

    public function getVatRate($country,$vatid){
        $countrycode = $this->countrycodes[$country];

        $isEU = array_key_exists($country,$this->countrycodes);

        // Not a EU country, so no VAT needs to be applied.
        if(!$isEU) return 0;

        // It's a EU country and it's our own (Belgium)
        if($countrycode === 'BE') return $this->vatrates['BE'];

        // It's a EU country, check if we need to apply VAT.
        $vatid = str_replace(array(' ', '.', '-', ',', ', '), '', trim($vatid));

        // No VAT ID entered, It's a EU private customer, apply VAT from their country.
        if(empty($vatid)) return $this->vatrates[$countrycode];

        // A VAT ID was entered, it's a EU business. Validate the VAT ID.
        $client = new SoapClient("http://ec.europa.eu/taxation_customs/vies/checkVatService.wsdl");

        // Something went wrong creating the SoapClient, assume it's a private EU customer. 
        // This case shouldn't really happen (maybe when EU servers are down?).
        if(!$client) return $this->vatrates[$countrycode];

        // Fire off the VAT check  
        $params = array('countryCode' => $countrycode, 'vatNumber' => $vatid);
        try{
            $r = $client->checkVat($params);
            // Valid EU Business, so we don't need to take VAT into account.
            if($r->valid == true){
                return 0;
            } else { // Invalid VAT ID. We'll assume a private customer then.
                return $this->vatrates[$countrycode];
            }
        }
        catch(Exception $e){ // Something went wrong, assume it's a private customer.
            return $this->vatrates[$countrycode];
        }
    }
}
?>