diff --git a/yuthon_property_approval/wizard/penalty_line_wizard.py b/yuthon_property_approval/wizard/penalty_line_wizard.py
index 58aa3e1c1..2c1621788 100644
--- a/yuthon_property_approval/wizard/penalty_line_wizard.py
+++ b/yuthon_property_approval/wizard/penalty_line_wizard.py
@@ -83,7 +83,6 @@ class PenaltyLineWizard(models.Model):
         ], order='reconciliation_date asc')
 
         initial_line = self.penalty_line_ids[0]
-        prev_date = initial_line.date # 初始日期
         prev_principal = initial_line.remaining_principal  # 初始剩余本金
         new_penalty_lines = []
 
@@ -106,7 +105,7 @@ class PenaltyLineWizard(models.Model):
                 current_idx = rent_pay_count
                 type_name = "租金"
 
-            if prev_date <= last_day_of_due_month:
+            if pay_date <= penalty_start_date:
                 days_overdue = 0
                 current_penalty = 0.0
             else:
@@ -129,7 +128,6 @@ class PenaltyLineWizard(models.Model):
                 'penalty': round(current_penalty, 2),
             }))
 
-            prev_date = pay_date
             prev_principal = remaining_principal
 
             management_type = penalty_type if is_penalty else rent_type