diff --git a/app/controllers/budgets/investments_controller.rb b/app/controllers/budgets/investments_controller.rb
index 235163f2e..704ff8d83 100644
--- a/app/controllers/budgets/investments_controller.rb
+++ b/app/controllers/budgets/investments_controller.rb
@@ -46,6 +46,7 @@ module Budgets
       @investment.author = current_user
 
       if @investment.save
+        Mailer.budget_investment_created(@investment).deliver_later
         redirect_to budget_investment_path(@budget, @investment),
                     notice: t('flash.actions.create.budget_investment')
       else
diff --git a/app/mailers/mailer.rb b/app/mailers/mailer.rb
index 25c019857..c5c4ae603 100644
--- a/app/mailers/mailer.rb
+++ b/app/mailers/mailer.rb
@@ -74,6 +74,14 @@ class Mailer < ApplicationMailer
     end
   end
 
+  def budget_investment_created(investment)
+    @investment = investment
+
+    with_user(@investment.author) do
+      mail(to: @investment.author.email, subject: t('mailers.budget_investment_created.subject'))
+    end
+  end
+
   private
 
   def with_user(user, &block)
diff --git a/app/views/mailer/budget_investment_created.html.erb b/app/views/mailer/budget_investment_created.html.erb
new file mode 100644
index 000000000..ba3674d0d
--- /dev/null
+++ b/app/views/mailer/budget_investment_created.html.erb
@@ -0,0 +1,16 @@
+Hola <%= @investment.author.name %>
+
+Muchas gracias por crear tu proyecto <%= @investment.title %> para los Presupuestos Participativos de <%= @investment.budget.name %> de Madrid.
+
+Te informaremos de cómo avanza el proceso, que también puedes seguir en
+<%= link_to budgets_url, budgets_url %>
+
+Atentamente,
+
+Área de Participación Ciudadana, Transparencia
+y Gobierno Abierto del Ayuntamiento de Madrid
+
+<div class="social-share-full">
+  <%= social_share_button_tag("#{@investment.title} #{setting['twitter_hashtag']}",
+                              url: budget_investment_url(@investment.budget, @investment)) %>
+</div>
\ No newline at end of file
diff --git a/config/locales/mailers.en.yml b/config/locales/mailers.en.yml
index 3fa63f9ec..0b103b5ea 100755
--- a/config/locales/mailers.en.yml
+++ b/config/locales/mailers.en.yml
@@ -52,4 +52,6 @@ en:
       thanks: "Thank you very much."
       title: "Welcome to %{org}"
       button: Complete registration
-      subject: "Invitation to %{org_name}"
\ No newline at end of file
+      subject: "Invitation to %{org_name}"
+    budget_investment_created:
+      subject: "Thank you for creating a proposal!"
\ No newline at end of file
diff --git a/config/locales/mailers.es.yml b/config/locales/mailers.es.yml
index 49e3e0796..f35085de0 100644
--- a/config/locales/mailers.es.yml
+++ b/config/locales/mailers.es.yml
@@ -52,4 +52,6 @@ es:
       thanks: "Muchas gracias."
       title: "Bienvenido a %{org}"
       button: Completar registro
-      subject: "Invitación a %{org_name}"
\ No newline at end of file
+      subject: "Invitación a %{org_name}"
+    budget_investment_created:
+      subject: "¡Gracias por crear una propuesta!"
\ No newline at end of file