diff --git a/spec/factories/calculator_factory.rb b/spec/factories/calculator_factory.rb
index 3142de884c..91c571a8fe 100644
--- a/spec/factories/calculator_factory.rb
+++ b/spec/factories/calculator_factory.rb
@@ -25,4 +25,6 @@ FactoryBot.define do
       c.save!
     }
   end
+
+  factory :default_tax_calculator, class: Calculator::DefaultTax
 end