diff --git a/app/models/user.rb b/app/models/user.rb
index 27a884fa4..83f09b605 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -67,6 +67,7 @@ class User < ApplicationRecord
   MFA_TEMPLATE_ID = "6bdf5ee1-8e01-4be1-b1f9-747061d8a24c".freeze
   RESET_PASSWORD_TEMPLATE_ID = "2c410c19-80a7-481c-a531-2bcb3264f8e6".freeze
   SET_PASSWORD_TEMPLATE_ID   = "257460a6-6616-4640-a3f9-17c3d73d9e91".freeze
+  BETA_ONBOARDING_TEMPLATE_ID = "b48bc2cd-5887-4611-8296-d0ab3ed0e7fd".freeze
 
   def reset_password_notify_template
     last_sign_in_at ? RESET_PASSWORD_TEMPLATE_ID : SET_PASSWORD_TEMPLATE_ID
@@ -82,6 +83,16 @@ class User < ApplicationRecord
     DeviseNotifyMailer.new.send_email(email, template_id, personalisation)
   end
 
+  def send_beta_onboarding_email
+    return unless URI::MailTo::EMAIL_REGEXP.match?(email)
+
+    template_id = BETA_ONBOARDING_TEMPLATE_ID
+    url = edit_user_password_url({ host: ENV["APP_HOST"] })
+    token = Devise.token_generator.generate(User, :reset_password_token)
+    personalisation = { name: name || email, link: "#{url}?reset_password_token=#{token}" }
+    DeviseNotifyMailer.new.send_email(email, template_id, personalisation)
+  end
+
   def assignable_roles
     return {} unless data_coordinator? || support?
     return ROLES if support?
diff --git a/lib/tasks/onboarding_emails.rake b/lib/tasks/onboarding_emails.rake
new file mode 100644
index 000000000..4624055ef
--- /dev/null
+++ b/lib/tasks/onboarding_emails.rake
@@ -0,0 +1,14 @@
+include Rails.application.routes.url_helpers
+
+namespace :onboarding_emails do
+  desc "Send onboarding emails to private beta users"
+  task :send, %i[organisation_id] => :environment do |_task, args|
+    organisation_id = args[:organisation_id]
+    raise "Organisation id must be provided" unless organisation_id
+
+    organisation = Organisation.find(organisation_id)
+    raise "Organisation #{organisation_id} does not exist" unless organisation
+
+    organisation.users.each(&:send_beta_onboarding_email)
+  end
+end
diff --git a/spec/features/reset_password.html.erb b/spec/features/reset_password.html.erb
deleted file mode 100644
index 1bf271dab..000000000
--- a/spec/features/reset_password.html.erb
+++ /dev/null
@@ -1,31 +0,0 @@
-<% content_for :title, "Reset your password" %>
-
-<% content_for :before_content do %>
-  <%= govuk_back_link(
-    text: "Back",
-    href: :back,
-  ) %>
-<% end %>
-
-<%= form_for(@user, as: :user, url: password_path(User), html: { method: :put }) do |f| %>
-  <%= f.hidden_field :reset_password_token %>
-  <div class="govuk-grid-row">
-    <div class="govuk-grid-column-two-thirds">
-      <%= f.govuk_error_summary %>
-
-      <h1 class="govuk-heading-l">
-        <%= content_for(:title) %>
-      </h1>
-
-      <%= f.govuk_password_field :password,
-        label: { text: "New password" },
-        hint: @minimum_password_length ? { text: "Your password must be at least #{@minimum_password_length} characters and hard to guess." } : nil,
-        autocomplete: "new-password" %>
-
-      <%= f.govuk_password_field :password_confirmation,
-        label: { text: "Confirm new password" } %>
-
-      <%= f.govuk_submit "Update" %>
-    </div>
-  </div>
-<% end %>
diff --git a/spec/lib/tasks/onboarding_emails_spec.rb b/spec/lib/tasks/onboarding_emails_spec.rb
new file mode 100644
index 000000000..dc58a7944
--- /dev/null
+++ b/spec/lib/tasks/onboarding_emails_spec.rb
@@ -0,0 +1,39 @@
+require "rails_helper"
+require "rake"
+
+describe "rake onboarding_emails:send", type: task do
+  subject(:task) { Rake::Task["onboarding_emails:send"] }
+
+  let!(:user) { FactoryBot.create(:user) }
+  let(:notify_client) { instance_double(Notifications::Client) }
+  let(:devise_notify_mailer) { DeviseNotifyMailer.new }
+  let(:reset_password_token) { "MCDH5y6Km-U7CFPgAMVS" }
+
+  before do
+    Rake.application.rake_require("tasks/onboarding_emails")
+    Rake::Task.define_task(:environment)
+    task.reenable
+    allow(DeviseNotifyMailer).to receive(:new).and_return(devise_notify_mailer)
+    allow(devise_notify_mailer).to receive(:notify_client).and_return(notify_client)
+    allow(notify_client).to receive(:send_email).and_return(true)
+    allow(Devise.token_generator).to receive(:generate).and_return(reset_password_token)
+    allow(ENV).to receive(:[]).with("APP_HOST").and_return("http://localhost:3000")
+  end
+
+  context "when onboarding a new organisation to private beta" do
+    it "can send the onboarding emails" do
+      expect(notify_client).to receive(:send_email).with(
+        {
+          email_address: user.email,
+          template_id: User::BETA_ONBOARDING_TEMPLATE_ID,
+          personalisation: {
+            name: user.name,
+            link: "http://localhost:3000/account/password/edit?reset_password_token=#{reset_password_token}",
+          },
+        },
+      )
+
+      task.invoke(user.organisation.id)
+    end
+  end
+end