diff --git a/engines/order_management/app/services/order_management/order/updater.rb b/engines/order_management/app/services/order_management/order/updater.rb
index 684ca7b9ac..e17a9e3ad6 100644
--- a/engines/order_management/app/services/order_management/order/updater.rb
+++ b/engines/order_management/app/services/order_management/order/updater.rb
@@ -67,8 +67,7 @@ module OrderManagement
       def update_adjustment_total
         order.adjustment_total = all_adjustments.additional.eligible.sum(:amount)
         order.additional_tax_total = all_adjustments.tax.additional.sum(:amount)
-        order.included_tax_total = all_adjustments.tax.inclusive.sum(:amount) +
-                                   adjustments.admin.sum(:included_tax)
+        order.included_tax_total = all_adjustments.tax.inclusive.sum(:amount)
       end
 
       def update_order_total
diff --git a/engines/order_management/spec/services/order_management/order/updater_spec.rb b/engines/order_management/spec/services/order_management/order/updater_spec.rb
index b18ce59912..76ab5ec521 100644
--- a/engines/order_management/spec/services/order_management/order/updater_spec.rb
+++ b/engines/order_management/spec/services/order_management/order/updater_spec.rb
@@ -34,12 +34,11 @@ module OrderManagement
                                                 :sum).and_return(20)
           allow(order).to receive_message_chain(:all_adjustments, :tax, :inclusive,
                                                 :sum).and_return(15)
-          allow(order).to receive_message_chain(:adjustments, :admin, :sum).and_return(2)
 
           updater.update_adjustment_total
           expect(order.adjustment_total).to eq(-5)
           expect(order.additional_tax_total).to eq(20)
-          expect(order.included_tax_total).to eq(17)
+          expect(order.included_tax_total).to eq(15)
         end
       end