diff --git a/app/Console/Commands/Admin/PruneOldNotifications.php b/app/Console/Commands/Admin/PruneOldNotifications.php
new file mode 100644
index 000000000..3283479a7
--- /dev/null
+++ b/app/Console/Commands/Admin/PruneOldNotifications.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace App\Console\Commands\Admin;
+
+use Illuminate\Console\Command;
+use Illuminate\Support\Facades\DB;
+
+class PruneOldNotifications extends Command
+{
+    protected $signature = 'notifications:prune-old
+        {--months=18 : Keep notifications newer than this many months}
+        {--batch=10000 : Number of rows to delete per batch}';
+
+    protected $description = 'Prune notifications older than the retention period';
+
+    public function handle(): int
+    {
+        $cutoff = now()->subMonths((int) $this->option('months'));
+        $batch = max(100, (int) $this->option('batch'));
+
+        $this->info("Pruning notifications older than {$cutoff->toDateTimeString()}");
+        $this->info("Batch size: {$batch}");
+
+        $total = 0;
+
+        do {
+            $deleted = DB::delete(
+                '
+                DELETE FROM `notifications`
+                WHERE `created_at` < ?
+                ORDER BY `created_at`
+                LIMIT ?
+                ',
+                [$cutoff, $batch]
+            );
+
+            $total += $deleted;
+
+            $this->line("Deleted {$deleted} rows ({$total} total)");
+
+            if ($deleted > 0) {
+                usleep(100_000);
+            }
+        } while ($deleted === $batch);
+
+        $this->info("Finished. Deleted {$total} notifications.");
+
+        return self::SUCCESS;
+    }
+}