diff --git a/core/apps/finance/serializers/cash_transaction.py b/core/apps/finance/serializers/cash_transaction.py
index a364366..09aa831 100644
--- a/core/apps/finance/serializers/cash_transaction.py
+++ b/core/apps/finance/serializers/cash_transaction.py
@@ -6,6 +6,7 @@ from core.apps.finance.models import CashTransaction, CashTransactionFolder
 from core.apps.accounts.models import User
 from core.apps.finance.models import PaymentType
 from core.apps.finance.serializers.payment_type import PaymentTypeSerializer
+from core.apps.projects.models import Project
 
 
 class CashTransactionEmployeeListSerializer(serializers.ModelSerializer):
@@ -43,6 +44,7 @@ class CashTransactionCreateSerializer(serializers.Serializer):
     name = serializers.CharField()
     status = serializers.BooleanField()
     folder_id = serializers.UUIDField(required=False)
+    project_ids = serializers.ListField(child=serializers.UUIDField(required=False), required=False)
 
     def validate_name(self, value):
         if CashTransaction.objects.filter(name=value).exists():
@@ -66,6 +68,11 @@ class CashTransactionCreateSerializer(serializers.Serializer):
                 status=validated_data.get('status'),
                 folder=validated_data.get('folder')
             )
+            if validated_data.get('project_ids'):
+                projects = Project.objects.filter(id__in=validated_data.get('project_ids'))
+                for project in projects:
+                    project.cash_transaction.add(cash_transaction)
+                    project.save()
             cash_transaction.employees.set(employee_ids)
             cash_transaction.payment_type.set(payment_type_ids)
             cash_transaction.save()