diff --git a/core/apps/finance/serializers/expence.py b/core/apps/finance/serializers/expence.py
index 605f071..12cb9d3 100644
--- a/core/apps/finance/serializers/expence.py
+++ b/core/apps/finance/serializers/expence.py
@@ -168,17 +168,17 @@ class ExpenceUpdateSerializer(serializers.ModelSerializer):
                 if instance.currency == 'uzs':
                     cash_transaction.expence_balance_uzs -= (old_price - validated_data.get('price'))
                     cash_transaction.total_balance_uzs -= (old_price - validated_data.get('price'))
-                    payment_type.total_uzs -= (old_price - validated_data.get('price'))
+                    payment_type.total_uzs -= (old_price - validated_data.get('price')) if payment_type.total_uzs > (old_price - validated_data.get('price')) else 0
                 else:
                     cash_transaction.expence_balance_usd -= (old_price - validated_data.get('price'))
                     cash_transaction.total_balance_usd -= (old_price - validated_data.get('price'))
-                    payment_type.total_usd -= (old_price - validated_data.get('price'))
+                    payment_type.total_usd -= (old_price - validated_data.get('price')) if payment_type.total_usd > (old_price - validated_data.get('price')) else 0
 
             elif old_price < validated_data.get('price'):
                 if instance.currency == 'uzs':
                     cash_transaction.expence_balance_uzs += (old_price - validated_data.get('price'))
                     cash_transaction.total_balance_uzs += (old_price - validated_data.get('price'))
-                    payment_type.total_uzs += (old_price - validated_data.get('price'))
+                    payment_type.total_uzs += (old_price - validated_data.get('price')) 
                 else:
                     cash_transaction.expence_balance_usd += (old_price - validated_data.get('price'))
                     cash_transaction.total_balance_usd += (old_price - validated_data.get('price'))
diff --git a/core/apps/finance/serializers/income.py b/core/apps/finance/serializers/income.py
index 3e801e4..b6b75ac 100644
--- a/core/apps/finance/serializers/income.py
+++ b/core/apps/finance/serializers/income.py
@@ -166,11 +166,11 @@ class IncomeUpdateSerializer(serializers.ModelSerializer):
                 if instance.currency == 'uzs':
                     cash_transaction.income_balance_uzs -= (old_price - validated_data.get('price'))
                     cash_transaction.total_balance_uzs -= (old_price - validated_data.get('price'))
-                    payment_type.total_uzs -= (old_price - validated_data.get('price'))
+                    payment_type.total_uzs -= (old_price - validated_data.get('price')) if payment_type.total_uzs > (old_price - validated_data.get('price')) else 0
                 else:
                     cash_transaction.income_balance_usd -= (old_price - validated_data.get('price'))
                     cash_transaction.total_balance_usd -= (old_price - validated_data.get('price'))
-                    payment_type.total_usd -= (old_price - validated_data.get('price'))
+                    payment_type.total_usd -= (old_price - validated_data.get('price')) if payment_type.total_usd > (old_price - validated_data.get('price')) else 0
 
             elif old_price < validated_data.get('price'):
                 if instance.currency == 'uzs':