diff --git a/src/components/cases/time-tab.tsx b/src/components/cases/time-tab.tsx
index 0c3b79b..c22fb93 100644
--- a/src/components/cases/time-tab.tsx
+++ b/src/components/cases/time-tab.tsx
@@ -135,6 +135,28 @@ export function CaseTimeTab({ caseRecord, onInvoice }: CaseTimeTabProps) {
     if (error) toast.error(error.message); else { toast.success("Deleted"); load(); }
   };
 
+  const toggleInvoiced = async (entry: any) => {
+    if (entry.invoice_id) {
+      // Unmark
+      const { error } = await supabase.from("time_entries").update({ invoice_id: null }).eq("id", entry.id);
+      if (error) { toast.error(error.message); return; }
+      toast.success("Marked as unbilled");
+      load();
+    } else {
+      if (!user?.id) { toast.error("Not signed in"); return; }
+      if (!caseRecord.client_id) { toast.error("Case has no client to invoice against"); return; }
+      try {
+        const invId = await ensureMarkedInvoicedPlaceholder(caseRecord.client_id, caseRecord.id, user.id);
+        const { error } = await supabase.from("time_entries").update({ invoice_id: invId }).eq("id", entry.id);
+        if (error) throw error;
+        toast.success("Marked as invoiced");
+        load();
+      } catch (err: any) {
+        toast.error(err?.message ?? "Could not mark as invoiced");
+      }
+    }
+  };
+
   const totals = entries.reduce(
     (acc, e) => ({
       hours: acc.hours + Number(e.hours),