diff --git a/lib/tasks/deployment/20221006135016_format_iban_champ_values.rake b/lib/tasks/deployment/20221006135016_format_iban_champ_values.rake
new file mode 100644
index 000000000..8e59e83f8
--- /dev/null
+++ b/lib/tasks/deployment/20221006135016_format_iban_champ_values.rake
@@ -0,0 +1,21 @@
+namespace :after_party do
+  desc 'Deployment task: format_iban_champ_values'
+  task format_iban_champ_values: :environment do
+    puts "Running deploy task 'format_iban_champ_values'"
+
+    champs = Champs::IbanChamp.where.not(value: nil)
+    progress = ProgressReport.new(champs.count)
+    champs.find_each do |champ|
+      # format IBAN value
+      champ.validate
+      champ.update_column(:value, champ.value)
+      progress.inc
+    end
+    progress.finish
+
+    # Update task as completed.  If you remove the line below, the task will
+    # run with every deploy (or every time you call after_party:run).
+    AfterParty::TaskRecord
+      .create version: AfterParty::TaskRecorder.new(__FILE__).timestamp
+  end
+end