diff --git a/app/assets/javascripts/registrations.js b/app/assets/javascripts/registrations.js
index 66b33b47..61aaeb1c 100644
--- a/app/assets/javascripts/registrations.js
+++ b/app/assets/javascripts/registrations.js
@@ -39,10 +39,21 @@ $(document).on('turbolinks:load', function() {
     }
   };
 
+  const hidePaymentInfoIfNeeded = function(value) {
+    const val = parseInt(value);
+    if (window.freeTickets && window.freeTickets.includes(val)) {
+      $("#payment-info").hide();
+    } else {
+      $("#payment-info").show();
+    }
+  };
+
   $("#registration_access_level").on('change', function() {
-    return hideCommentFieldIfNeeded($(this).val());
+    hidePaymentInfoIfNeeded($(this).val());
+    hideCommentFieldIfNeeded($(this).val());
   });
 
-  return hideCommentFieldIfNeeded($("#registration_access_level").val());
+  hidePaymentInfoIfNeeded($("#registration_access_level").val());
+  hideCommentFieldIfNeeded($("#registration_access_level").val());
 
 });
diff --git a/app/views/registrations/_form.html.erb b/app/views/registrations/_form.html.erb
index 831aaeb4..6079fd3e 100644
--- a/app/views/registrations/_form.html.erb
+++ b/app/views/registrations/_form.html.erb
@@ -12,12 +12,13 @@
       <%= form_text_area f, :comment %>
       <%= javascript_tag do %>
         window.ticketsWithComments = <%= @event.access_levels.find_all(&:has_comment).map(&:id).to_json %>
+        window.freeTickets = <%= @event.access_levels.where(price: 0).map(&:id).to_json %>
       <% end %>
       <%= f.submit "Register", class: 'btn btn-group btn-primary' %>
     <% end %>
   </p>
 
-  <div class="well well-sm">
+  <div id="payment-info" class="well well-sm">
     Payments can be done by bank transfer, <strong>not by credit card</strong>.
   </div>