diff --git a/app/Http/Controllers/Admin/PlatformOrderController.php b/app/Http/Controllers/Admin/PlatformOrderController.php
index ca40fa0..381313a 100644
--- a/app/Http/Controllers/Admin/PlatformOrderController.php
+++ b/app/Http/Controllers/Admin/PlatformOrderController.php
@@ -471,10 +471,16 @@ class PlatformOrderController extends Controller
 
                 $tol = (float) config('saasshop.amounts.tolerance', 0.01);
 
+                $tolCents = (int) round($tol * 100);
+                $tolCents = max(1, $tolCents);
+                $deltaCents = (int) round($delta * 100);
+                $reconcileMismatch = $receiptTotal > 0 && abs($deltaCents) >= $tolCents;
+
                 fputcsv($out, ['receipt_total', number_format($receiptTotal, 2, '.', '')]);
                 fputcsv($out, ['refund_total', number_format($refundTotal, 2, '.', '')]);
                 fputcsv($out, ['reconcile_delta', number_format($delta, 2, '.', '')]);
                 fputcsv($out, ['amount_tolerance', number_format($tol, 2, '.', '')]);
+                fputcsv($out, ['reconcile_mismatch', $reconcileMismatch ? '1' : '0']);
 
                 fputcsv($out, ['placed_at', (string) (optional($order->placed_at)->format('Y-m-d H:i:s') ?? '')]);
                 fputcsv($out, ['paid_at', (string) (optional($order->paid_at)->format('Y-m-d H:i:s') ?? '')]);
diff --git a/tests/Feature/AdminPlatformOrderExportLedgerTest.php b/tests/Feature/AdminPlatformOrderExportLedgerTest.php
index b0e3c72..0a674a2 100644
--- a/tests/Feature/AdminPlatformOrderExportLedgerTest.php
+++ b/tests/Feature/AdminPlatformOrderExportLedgerTest.php
@@ -114,6 +114,7 @@ class AdminPlatformOrderExportLedgerTest extends TestCase
         $this->assertStringContainsString('refund_total,1.00', $content2);
         $this->assertStringContainsString('reconcile_delta,10.00', $content2);
         $this->assertStringContainsString('amount_tolerance,0.01', $content2);
+        $this->assertStringContainsString('reconcile_mismatch,1', $content2);
     }
 
     public function test_show_page_should_render_export_ledger_link(): void