diff --git a/app/Http/Controllers/Sales/AdminProspectController.php b/app/Http/Controllers/Sales/AdminProspectController.php
index a41b20ad..5b711678 100644
--- a/app/Http/Controllers/Sales/AdminProspectController.php
+++ b/app/Http/Controllers/Sales/AdminProspectController.php
@@ -448,9 +448,10 @@ public function updateCommissionDate(int $id, Request $request)
             $updateData[$autoField] = $autoDate;
         }
 
-        // 납입일 변경 시 지급예정일(scheduled_payment_date)도 재계산
+        // 납입일 변경 시 지급예정일 + 입금일(payment_date)도 함께 업데이트
         if (in_array($field, ['first_payment_at', 'second_payment_at'])) {
             $updateData['scheduled_payment_date'] = \Carbon\Carbon::parse($date)->addMonth()->day(10)->format('Y-m-d');
+            $updateData['payment_date'] = $date;
         }
 
         $commission->update($updateData);