diff --git a/lib/tasks/registrations.rake b/lib/tasks/registrations.rake
new file mode 100644
index 00000000..39cb33c4
--- /dev/null
+++ b/lib/tasks/registrations.rake
@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+
+namespace :registrations do
+  desc "Create missing registrations for those how have a registration ticket."
+  task :create_missing, [:conference] => :environment do |t, args|
+
+    fail 'Please supply a conference short name.' unless args.conference
+
+    conf = Conference.find_by(short_title: args.conference)
+    # Check if a user is found based on the supplied email address
+    fail "Coud not find conference #{args.conference}" unless conf
+
+    purchases = conf.ticket_purchases.where(ticket: conf.registration_tickets, paid: true)
+    unregistered = purchases.select { |tp| !conf.user_registered?(tp.user) }
+    puts "Found #{unregistered.count} unregistered users for #{purchases.count} ticket purchases."
+    puts "There are currently #{conf.participants.count} registered users."
+
+    unregistered.each do |tp|
+      puts "Creating registration for #{tp.user.email}"
+      Registration.create(user: tp.user, conference: conf)
+    end
+    puts "Done."
+  end
+
+  desc "Show User emails who have not paid, but did register"
+  task :list_unpaid, [:conference] => :environment do |t, args|
+
+    fail 'Please supply a conference short name.' unless args.conference
+
+    conf = Conference.find_by(short_title: args.conference)
+    # Check if a user is found based on the supplied email address
+    fail "Coud not find conference #{args.conference}" unless conf
+
+    registered = conf.participants
+    unpaid = registered.select do |user|
+      TicketPurchase.where(conference: conf, paid: true, user: user).empty?
+    end
+    puts "Found #{registered.count} registered users and #{unpaid.count} unpaid attendees."
+    puts
+
+    unpaid.each do |user|
+      puts "'#{user.name}',#{user.email}"
+    end
+    puts ""
+  end
+end