diff --git a/app/models/spree/item_adjustments.rb b/app/models/spree/item_adjustments.rb
index 15aaafad0c..1dd334f47d 100644
--- a/app/models/spree/item_adjustments.rb
+++ b/app/models/spree/item_adjustments.rb
@@ -17,9 +17,6 @@ module Spree
     end
 
     def update_adjustments
-      tax_adjustments =
-        (item.respond_to?(:all_adjustments) ? item.all_adjustments : item.adjustments).tax
-
       adjustment_total = adjustments.additional.map(&:update!).compact.sum
       included_tax_total = tax_adjustments.inclusive.reload.map(&:update!).compact.sum
       additional_tax_total = tax_adjustments.additional.reload.map(&:update!).compact.sum
@@ -31,5 +28,11 @@ module Spree
         updated_at: Time.zone.now
       )
     end
+
+    private
+
+    def tax_adjustments
+      (item.respond_to?(:all_adjustments) ? item.all_adjustments : item.adjustments).tax
+    end
   end
 end