diff --git a/ondeck/src/components/clients/client-detail.tsx b/ondeck/src/components/clients/client-detail.tsx
index 4459dce..df1431a 100644
--- a/ondeck/src/components/clients/client-detail.tsx
+++ b/ondeck/src/components/clients/client-detail.tsx
@@ -112,6 +112,16 @@ export function ClientDetail({ client, designations, policyGroups = [], allPolic
     refreshTasks(next)
   }
 
+  const handleToggleCompleted = () => {
+    const next = !showCompleted
+    setShowCompleted(next)
+    // The default (non-archived) task fetch only includes completed/cancelled/NA tasks
+    // from the last 7 days — anything older needs the archived fetch to actually load.
+    // Revert to the filtered fetch when turning it back off (unless Show Archived is
+    // separately on) so dead-policy tasks pulled in by the archived fetch don't leak in.
+    if (!showArchivedTasks) refreshTasks(next)
+  }
+
   // Assignments state
   const [allUsers, setAllUsers] = useState<SimpleUser[]>([])
   const [claimsUsers, setClaimsUsers] = useState<SimpleUser[]>([])
@@ -647,7 +657,7 @@ export function ClientDetail({ client, designations, policyGroups = [], allPolic
 
             {/* Show completed toggle */}
             <button
-              onClick={() => setShowCompleted((v) => !v)}
+              onClick={handleToggleCompleted}
               className={`flex items-center gap-1.5 px-3 py-1.5 rounded transition-colors font-medium ${
                 showCompleted
                   ? 'bg-primary text-primary-foreground'