diff --git a/client/models.py b/client/models.py
index b0be80f..06fd371 100644
--- a/client/models.py
+++ b/client/models.py
@@ -37,8 +37,8 @@ class Address(models.Model):
     address_line1 = models.CharField(max_length=50)
     address_line2 = models.CharField(max_length=50)
     postal_code = models.CharField(max_length=15)
-    tax_type = models.ForeignKey(TaxType, on_delete=models.CASCADE)
-    tax_id = models.CharField(max_length=30)
+    tax_type = models.ForeignKey(TaxType, on_delete=models.CASCADE, blank=True, null=True)
+    tax_id = models.CharField(max_length=30, blank=True, null=True)
 
     def __str__(self):
         return self.address_line1
diff --git a/employee/urls.py b/employee/urls.py
index 68bcaf6..43bba90 100644
--- a/employee/urls.py
+++ b/employee/urls.py
@@ -1,6 +1,10 @@
-from django.urls import path
+from django.urls import path, include
 from . import views
+from rest_framework import routers
+
+router = routers.DefaultRouter()
+router.register(r'employees', views.EmployeeViewSet)
 
 urlpatterns = [
-    path('employees/', views.EmployeeList.as_view()),
+    path('', include(router.urls)),
 ]
diff --git a/employee/views.py b/employee/views.py
index 4944149..58b413b 100644
--- a/employee/views.py
+++ b/employee/views.py
@@ -1,16 +1,13 @@
-from rest_framework.response import Response
-from rest_framework.views import APIView
+from rest_framework import viewsets
 from rest_framework.authentication import TokenAuthentication, SessionAuthentication
 from rest_framework.permissions import IsAuthenticated
 from .models import Employee
 from .serializers import EmployeeSerializer
 
 
-class EmployeeList(APIView):
+class EmployeeViewSet(viewsets.ReadOnlyModelViewSet):
+    queryset = Employee.objects.all()
+    serializer_class = EmployeeSerializer
     authentication_classes = [TokenAuthentication, SessionAuthentication]
     permission_classes = [IsAuthenticated]
 
-    def get(self, request):
-        employees = Employee.objects.all()
-        serializer = EmployeeSerializer(employees, many=True)
-        return Response(serializer.data)