diff --git a/src/app/admin/page.tsx b/src/app/admin/page.tsx
index df78617..d933205 100644
--- a/src/app/admin/page.tsx
+++ b/src/app/admin/page.tsx
@@ -12,7 +12,7 @@ import { requireInitialSetup } from "@/lib/setup";
 import { DataTable, EmptyState, MetricTile, PageHeader, Panel, StatusDot, Tabs } from "@/components/ui";
 import { getAppSettings, type AppSettings } from "@/lib/settings";
 import { updateInstanceSettings, updateSecuritySettings } from "@/lib/settings-actions";
-import { banUser, createInstanceInvite, disableUser, enableUser, grantAdminRole, removeUserFriendships, revokeAdminRole, revokeInvite } from "@/lib/admin-actions";
+import { banUser, createInstanceInvite, disableUser, enableUser, expireStaleInvites, grantAdminRole, removeUserFriendships, revokeAdminRole, revokeInvite } from "@/lib/admin-actions";
 import { deleteRoom } from "@/lib/room-actions";
 import { isInviteExpired } from "@/lib/invites";
 
@@ -340,6 +340,8 @@ function InvitesPanel({
   }>;
   rooms: Array<{ id: string; name: string; slug: string }>;
 }) {
+  const expiredInviteCount = invites.filter((invite) => invite.status === "ACTIVE" && isInviteExpired(invite.expiresAt)).length;
+
   return (
     <div className="split-grid">
       <Panel title="Create Invite" eyebrow="Access">
@@ -361,6 +363,11 @@ function InvitesPanel({
         </form>
       </Panel>
       <Panel title="Invites" eyebrow={`${invites.length} recent`}>
+        {expiredInviteCount > 0 ? (
+          <form action={expireStaleInvites} className="inline-form">
+            <button className="button compact-button" type="submit">Mark {expiredInviteCount} expired</button>
+          </form>
+        ) : null}
         {invites.length === 0 ? (
           <EmptyState title="No invites yet" description="Create an invite to allow registration or room access workflows." />
         ) : (
diff --git a/src/lib/admin-actions.ts b/src/lib/admin-actions.ts
index 1e5cb10..6309471 100644
--- a/src/lib/admin-actions.ts
+++ b/src/lib/admin-actions.ts
@@ -125,6 +125,19 @@ export async function revokeInvite(formData: FormData) {
   revalidateAdmin();
 }
 
+export async function expireStaleInvites() {
+  const admin = await requireAdmin();
+  const result = await prisma.invite.updateMany({
+    where: {
+      status: "ACTIVE",
+      expiresAt: { lt: new Date() }
+    },
+    data: { status: "EXPIRED" }
+  });
+  await audit(admin.id, "admin.invites.expire", { expiredInvites: result.count });
+  revalidateAdmin();
+}
+
 async function audit(actorId: string, action: string, metadata: Prisma.InputJsonObject) {
   await prisma.auditEvent.create({ data: { actorId, action, metadata } });
 }