diff --git a/app/Services/OrderService.php b/app/Services/OrderService.php
index 0d4d2dd..7c17250 100644
--- a/app/Services/OrderService.php
+++ b/app/Services/OrderService.php
@@ -275,11 +275,66 @@ public function updateStatus(int $id, string $status)
         // 상태 전환 규칙 검증
         $this->validateStatusTransition($order->status_code, $status);
 
-        $order->status_code = $status;
-        $order->updated_by = $userId;
-        $order->save();
+        return DB::transaction(function () use ($order, $status, $userId) {
+            $createdSale = null;
 
-        return $order->load(['client:id,name', 'items']);
+            // 수주확정 시 매출 자동 생성 (sales_recognition = on_order_confirm인 경우)
+            if ($status === Order::STATUS_CONFIRMED && $order->shouldCreateSaleOnConfirm()) {
+                $createdSale = $this->createSaleFromOrder($order, $userId);
+                $order->sale_id = $createdSale->id;
+            }
+
+            $order->status_code = $status;
+            $order->updated_by = $userId;
+            $order->save();
+
+            $result = $order->load(['client:id,name', 'items']);
+
+            // 매출이 생성된 경우 응답에 포함
+            if ($createdSale) {
+                $result->setAttribute('created_sale', $createdSale);
+            }
+
+            return $result;
+        });
+    }
+
+    /**
+     * 수주에서 매출 생성
+     */
+    private function createSaleFromOrder(Order $order, int $userId): Sale
+    {
+        $saleNumber = $this->generateSaleNumber($order->tenant_id);
+
+        $sale = Sale::createFromOrder($order, $saleNumber);
+        $sale->created_by = $userId;
+        $sale->save();
+
+        return $sale;
+    }
+
+    /**
+     * 매출번호 자동 생성
+     */
+    private function generateSaleNumber(int $tenantId): string
+    {
+        $prefix = 'SAL';
+        $yearMonth = now()->format('Ym');
+
+        // 해당 월 기준 마지막 번호 조회
+        $lastNo = Sale::withoutGlobalScopes()
+            ->where('tenant_id', $tenantId)
+            ->where('sale_number', 'like', "{$prefix}-{$yearMonth}-%")
+            ->orderByDesc('sale_number')
+            ->value('sale_number');
+
+        if ($lastNo) {
+            $seq = (int) substr($lastNo, -4) + 1;
+        } else {
+            $seq = 1;
+        }
+
+        return sprintf('%s-%s-%04d', $prefix, $yearMonth, $seq);
     }
 
     /**