diff --git a/htdocs/societe/checkvat/checkVatGr.php b/htdocs/societe/checkvat/checkVatGr.php
new file mode 100644
index 00000000000..9018081cf68
--- /dev/null
+++ b/htdocs/societe/checkvat/checkVatGr.php
@@ -0,0 +1,54 @@
+<?php
+/* Copyright (C) 2016       Spiros Ioannou
+ * Copyright (C) 2017       Marios Kaintatzis
+ * Copyright (C) 2023       Nick Fragoulis
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/**
+ *  \file       htdocs/societe/checkvat/checkVatGr.php
+ *  \ingroup    societe
+ *  \brief      Request VAT details from the Greek Ministry of Finance GSIS SOAP web service
+ */
+
+$username = (isset($_REQUEST['u']) ? $_REQUEST['u'] : ''); // Get username from request
+$password = (isset($_REQUEST['p']) ? $_REQUEST['p'] : ''); // Get password from request
+$myafm = (isset($_REQUEST['myafm']) ? $_REQUEST['myafm'] : ''); // Get Vat from request
+$afm = (isset($_REQUEST['afm']) ? $_REQUEST['afm'] : ''); // Get client Vat from request
+
+// Make call to check VAT for Greek client
+$result = checkVATGR($username, $password, $myafm, $afm);
+
+echo json_encode($result); // Encode the result as JSON and output
+
+// Function to check VAT
+function checkVATGR($username, $password, $AFMcalledby = '', $AFMcalledfor)
+{
+    $client = new SoapClient("https://www1.gsis.gr/webtax2/wsgsis/RgWsPublic/RgWsPublicPort?WSDL", array('trace' => true));
+    $authHeader = new stdClass();
+    $authHeader->UsernameToken = new stdClass();
+    $authHeader->UsernameToken->Username = "$username";
+    $authHeader->UsernameToken->Password = "$password";
+    $Headers[] = new SoapHeader('http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd', 'Security', $authHeader, true);
+    $client->__setSoapHeaders($Headers);
+    $result = $client->rgWsPublicAfmMethod(
+        array(
+            'afmCalledBy' => "$AFMcalledby",
+            'afmCalledFor' => "$AFMcalledfor",
+        )
+    );
+
+    return $result;
+}