diff --git a/netbox/dcim/api/serializers.py b/netbox/dcim/api/serializers.py
index b352050e1..0bfcc72df 100644
--- a/netbox/dcim/api/serializers.py
+++ b/netbox/dcim/api/serializers.py
@@ -696,6 +696,9 @@ class WritableInterfaceSerializer(ValidatedModelSerializer):
             'id', 'device', 'name', 'form_factor', 'enabled', 'lag', 'mtu', 'mac_address', 'mgmt_only', 'description',
             'mode', 'untagged_vlan', 'tagged_vlans',
         ]
+        ignore_validation_fields = [
+            'tagged_vlans'
+        ]
 
     def validate(self, data):
 
diff --git a/netbox/utilities/api.py b/netbox/utilities/api.py
index d9ae855ea..f35e6b40a 100644
--- a/netbox/utilities/api.py
+++ b/netbox/utilities/api.py
@@ -48,6 +48,11 @@ class ValidatedModelSerializer(ModelSerializer):
         attrs = data.copy()
         attrs.pop('custom_fields', None)
 
+        # remove any fields marked for no validation
+        ignore_validation_fields = getattr(self.Meta, 'ignore_validation_fields', [])
+        for field in ignore_validation_fields:
+            attrs.pop(field)
+
         # Run clean() on an instance of the model
         if self.instance is None:
             instance = self.Meta.model(**attrs)