diff --git a/Koha/Patron.pm b/Koha/Patron.pm
index 48b2ee75c7..20ac75196d 100644
--- a/Koha/Patron.pm
+++ b/Koha/Patron.pm
@@ -2519,6 +2519,10 @@ sub to_api {
                                     ? Mojo::JSON->true
                                     : Mojo::JSON->false;
 
+    $json_patron->{expired} = ( $self->is_expired )
+                                    ? Mojo::JSON->true
+                                    : Mojo::JSON->false;
+
     return $json_patron;
 }
 
diff --git a/api/v1/swagger/definitions/patron.yaml b/api/v1/swagger/definitions/patron.yaml
index 331989f303..4adf5dcd53 100644
--- a/api/v1/swagger/definitions/patron.yaml
+++ b/api/v1/swagger/definitions/patron.yaml
@@ -209,6 +209,10 @@ properties:
       - boolean
       - "null"
     description: set to 1 if library marked this patron as having lost his card
+  expired:
+    type: boolean
+    readOnly: true
+    description: If patron is expired
   restricted:
     type: boolean
     readOnly: true
diff --git a/koha-tmpl/intranet-tmpl/prog/js/staff-global.js b/koha-tmpl/intranet-tmpl/prog/js/staff-global.js
index e993f8fe01..e76bf876f6 100644
--- a/koha-tmpl/intranet-tmpl/prog/js/staff-global.js
+++ b/koha-tmpl/intranet-tmpl/prog/js/staff-global.js
@@ -695,12 +695,6 @@ function patron_autocomplete(node, options) {
         } else {
             loggedInClass = "";
         }
-        let new_date = new Date();
-        let today = Date.parse($date_to_rfc3339($date(new_date.toString())));
-        let expiration = Date.parse(
-            $date_to_rfc3339($date(item.expiry_date.toString()))
-        );
-        let expired = today > expiration;
         return $("<li></li>")
             .addClass(loggedInClass)
             .data("ui-autocomplete-item", item)
@@ -735,7 +729,7 @@ function patron_autocomplete(node, options) {
                           item.library.name.escapeHtml() +
                           "</span>"
                         : "") +
-                    (expired
+                    (item.expired
                         ? '<span class="badge text-bg-warning">' +
                           __("Expired") +
                           "</span>"