diff --git a/api/assign_ticket.php b/api/assign_ticket.php
index ad1fd6e..0b21348 100644
--- a/api/assign_ticket.php
+++ b/api/assign_ticket.php
@@ -84,5 +84,7 @@ if (!$success) {
     http_response_code(500);
     apiRespond(['success' => false, 'error' => 'Failed to update ticket assignment']);
 } else {
+    require_once dirname(__DIR__) . '/models/StatsModel.php';
+    (new StatsModel($conn))->invalidateCache();
     apiRespond(['success' => true]);
 }
diff --git a/api/bulk_operation.php b/api/bulk_operation.php
index 5c5b9f4..2783224 100644
--- a/api/bulk_operation.php
+++ b/api/bulk_operation.php
@@ -110,6 +110,10 @@ if (isset($result['error'])) {
         'error' => $result['error']
     ]);
 } else {
+    // Invalidate stats cache so dashboard tiles reflect changes immediately
+    require_once dirname(__DIR__) . '/models/StatsModel.php';
+    (new StatsModel($conn))->invalidateCache();
+
     $message = "Bulk operation completed: {$result['processed']} succeeded, {$result['failed']} failed";
     if ($inaccessibleCount > 0) {
         $message .= " ($inaccessibleCount skipped - no access)";
diff --git a/api/clone_ticket.php b/api/clone_ticket.php
index 94710f0..ecb1969 100644
--- a/api/clone_ticket.php
+++ b/api/clone_ticket.php
@@ -111,6 +111,8 @@ try {
         $dependencyModel = new DependencyModel($conn);
         $dependencyModel->addDependency($result['ticket_id'], $sourceTicketId, 'relates_to', $userId);
 
+        require_once dirname(__DIR__) . '/models/StatsModel.php';
+        (new StatsModel($conn))->invalidateCache();
         echo json_encode([
             'success' => true,
             'new_ticket_id' => $result['ticket_id'],
diff --git a/api/update_ticket.php b/api/update_ticket.php
index 9096cdb..ab82e17 100644
--- a/api/update_ticket.php
+++ b/api/update_ticket.php
@@ -270,7 +270,13 @@ try {
     
     // Discard any output that might have been generated
     ob_end_clean();
-    
+
+    // Invalidate stats cache on successful ticket update
+    if (!empty($result['success'])) {
+        require_once dirname(__DIR__) . '/models/StatsModel.php';
+        (new StatsModel($conn))->invalidateCache();
+    }
+
     // Return response
     if (!empty($result['http_status'])) {
         http_response_code($result['http_status']);