diff --git a/modules/client/back/models/client.js b/modules/client/back/models/client.js
index 636e32ffa..36bc60dfa 100644
--- a/modules/client/back/models/client.js
+++ b/modules/client/back/models/client.js
@@ -186,10 +186,16 @@ module.exports = Self => {
         let payMethodWithIban = 4;
 
         // Validate socialName format
-        const socialNameChanged = orgData && changes
-            && orgData.socialName != changes.socialName;
+        const hasChanges = orgData && changes;
+        const socialName = changes.socialName || orgData.socialName;
+        const isTaxDataChecked = hasChanges && (changes.isTaxDataChecked || orgData.isTaxDataChecked);
 
-        if (socialNameChanged && !isAlpha(changes.socialName))
+        const socialNameChanged = hasChanges
+            && orgData.socialName != socialName;
+        const dataCheckedChanged = hasChanges
+            && orgData.isTaxDataChecked != isTaxDataChecked;
+
+        if ((socialNameChanged || dataCheckedChanged) && !isAlpha(socialName))
             throw new UserError('The socialName has an invalid format');
 
         if (changes.salesPerson === null) {