diff --git a/app/controllers/checkout_controller.rb b/app/controllers/checkout_controller.rb
index 6b0f08ba99..8567f30502 100644
--- a/app/controllers/checkout_controller.rb
+++ b/app/controllers/checkout_controller.rb
@@ -148,12 +148,14 @@ class CheckoutController < ::BaseController
   end
 
   def valid_payment_intent_provided?
-    return false unless params["payment_intent"]&.starts_with?("pi_")
+    @valid_payment_intent_provided ||= begin
+      return false unless params["payment_intent"]&.starts_with?("pi_")
 
-    last_payment = OrderPaymentFinder.new(@order).last_payment
-    @order.state == "payment" &&
-      last_payment&.state == "requires_authorization" &&
-      last_payment&.response_code == params["payment_intent"]
+      last_payment = OrderPaymentFinder.new(@order).last_payment
+      @order.state == "payment" &&
+        last_payment&.state == "requires_authorization" &&
+        last_payment&.response_code == params["payment_intent"]
+    end
   end
 
   def handle_redirect_from_stripe