diff --git a/app/controllers/users/dossiers_controller.rb b/app/controllers/users/dossiers_controller.rb
index 390d4d2ac..80698fde4 100644
--- a/app/controllers/users/dossiers_controller.rb
+++ b/app/controllers/users/dossiers_controller.rb
@@ -28,6 +28,8 @@ module Users
       @dossiers_supprimes_definitivement = current_user.deleted_dossiers.order_by_updated_at.page(page)
       @dossier_transfers = DossierTransfer.for_email(current_user.email).page(page)
       @statut = statut(@user_dossiers, @dossiers_traites, @dossiers_invites, @dossiers_supprimes_recemment, @dossiers_supprimes_definitivement, @dossier_transfers, @dossiers_close_to_expiration, params[:statut])
+
+      @last_dossier_editable = current_user.dossiers.last_editable
     end
 
     def show
diff --git a/app/models/dossier.rb b/app/models/dossier.rb
index 5866700c0..9868547c1 100644
--- a/app/models/dossier.rb
+++ b/app/models/dossier.rb
@@ -65,6 +65,7 @@ class Dossier < ApplicationRecord
   TERMINE = [states.fetch(:accepte), states.fetch(:refuse), states.fetch(:sans_suite)]
   INSTRUCTION_COMMENCEE = TERMINE + [states.fetch(:en_instruction)]
   SOUMIS = EN_CONSTRUCTION_OU_INSTRUCTION + TERMINE
+  EDITABLE = [states.fetch(:brouillon), states.fetch(:en_construction)]
 
   REMAINING_DAYS_BEFORE_CLOSING = 2
   INTERVAL_BEFORE_CLOSING = "#{REMAINING_DAYS_BEFORE_CLOSING} days"
@@ -222,6 +223,7 @@ class Dossier < ApplicationRecord
   scope :state_not_en_construction,            -> { where.not(state: states.fetch(:en_construction)) }
   scope :state_en_instruction,                 -> { where(state: states.fetch(:en_instruction)) }
   scope :state_en_construction_ou_instruction, -> { where(state: EN_CONSTRUCTION_OU_INSTRUCTION) }
+  scope :state_editable,                       -> { where(state: EDITABLE) }
   scope :state_instruction_commencee,          -> { where(state: INSTRUCTION_COMMENCEE) }
   scope :state_termine,                        -> { where(state: TERMINE) }
   scope :state_not_termine,                    -> { where.not(state: TERMINE) }
@@ -294,6 +296,7 @@ class Dossier < ApplicationRecord
       champs: [:type_de_champ, piece_justificative_file_attachments: :blob]
     ])
   }
+  scope :last_editable, -> { not_archived.state_editable.order_by_updated_at.first }
   scope :with_annotations, -> {
     includes(champs_private: [
       :type_de_champ,
diff --git a/app/views/users/dossiers/index.html.haml b/app/views/users/dossiers/index.html.haml
index d5db5b69c..44d0e4deb 100644
--- a/app/views/users/dossiers/index.html.haml
+++ b/app/views/users/dossiers/index.html.haml
@@ -9,11 +9,19 @@
 .dossiers-headers.sub-header
   .container
     - if @search_terms.present?
-      %h1.page-title Résultat de la recherche pour « #{@search_terms} »
+      %h1.page-title.fr-h2 Résultat de la recherche pour « #{@search_terms} »
       = render partial: "dossiers_list", locals: { dossiers: @dossiers }
 
     - else
-      %h1.page-title= t('views.users.dossiers.index.dossiers')
+      %h1.page-title.fr-h2= t('views.users.dossiers.index.dossiers')
+
+      - if @last_dossier_editable.present?
+        = render Dsfr::CalloutComponent.new(title: t('users.dossiers.header.callout.last_dossier_editable_title')) do |c|
+          - c.with_body do
+            %p
+              = t('users.dossiers.header.callout.last_dossier_editable_text', time_ago: time_ago_in_words(@last_dossier_editable.created_at), libelle: @last_dossier_editable.procedure.libelle  )
+            = link_to t('users.dossiers.header.callout.last_dossier_editable_button'), modifier_dossier_path(@last_dossier_editable), class: 'fr-btn'
+
       %nav.tabs{ role: 'navigation', 'aria-label': t('views.users.dossiers.secondary_menu') }
         %ul
           - if @user_dossiers.present?
diff --git a/config/locales/en.yml b/config/locales/en.yml
index f5d189fb9..4250de0b9 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -448,7 +448,7 @@ en:
           simple: Search
         secondary_menu: Secondary menu
         index:
-          dossiers: "Files"
+          dossiers: "My files"
         dossiers_list:
           caption: My files
           procedure: "Procedure"
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index cd52c4f3a..976d65256 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -449,7 +449,7 @@ fr:
           simple: Rechercher
         secondary_menu: Menu secondaire
         index:
-          dossiers: "Dossiers"
+          dossiers: "Mes dossiers"
         dossiers_list:
           caption: Mes dossiers
           procedure: "Démarche"
diff --git a/config/locales/views/users/header/en.yml b/config/locales/views/users/header/en.yml
index 97dc89189..dd34344e3 100644
--- a/config/locales/views/users/header/en.yml
+++ b/config/locales/views/users/header/en.yml
@@ -19,3 +19,7 @@ en:
           button_delay_expiration:
             one: "Keep for %{count} more month"
             other: "Keep for %{count} more months"
+        callout:
+          last_dossier_editable_title: You already started to fill a file
+          last_dossier_editable_text: "%{time_ago} ago you started to fill a file on « %{libelle} » procedure."
+          last_dossier_editable_button: Keep filling this file
diff --git a/config/locales/views/users/header/fr.yml b/config/locales/views/users/header/fr.yml
index 049831b4f..4d2714484 100644
--- a/config/locales/views/users/header/fr.yml
+++ b/config/locales/views/users/header/fr.yml
@@ -19,3 +19,7 @@ fr:
           button_delay_expiration:
             one: "Conserver %{count} mois supplémentaire"
             other: "Conserver %{count} mois supplémentaires"
+        callout:
+          last_dossier_editable_title: Vous avez déjà commencé à remplir un dossier
+          last_dossier_editable_text: Il y a %{time_ago} vous avez commencé à remplir un dossier sur la démarche « %{libelle} ».
+          last_dossier_editable_button: Continuer à remplir
diff --git a/spec/controllers/users/dossiers_controller_spec.rb b/spec/controllers/users/dossiers_controller_spec.rb
index e395580ee..c7ab7c7a0 100644
--- a/spec/controllers/users/dossiers_controller_spec.rb
+++ b/spec/controllers/users/dossiers_controller_spec.rb
@@ -795,6 +795,15 @@ describe Users::DossiersController, type: :controller do
       end
     end
 
+    context 'when the user has dossier he can edit' do
+      let!(:own_dossier) { create(:dossier, user: user) }
+      let!(:own_dossier_2) { create(:dossier, :en_instruction, user: user) }
+
+      before { get(:index) }
+
+      it { expect(assigns(:last_dossier_editable)).to match(own_dossier) }
+    end
+
     describe 'sort order' do
       before do
         Timecop.freeze(4.days.ago) { create(:dossier, user: user) }
diff --git a/spec/models/dossier_spec.rb b/spec/models/dossier_spec.rb
index bcdde92d6..7d1a06828 100644
--- a/spec/models/dossier_spec.rb
+++ b/spec/models/dossier_spec.rb
@@ -18,6 +18,13 @@ describe Dossier do
 
       it { expect(Dossier.without_followers.to_a).to eq([dossier_without_follower]) }
     end
+
+    describe 'last_editable' do
+      let!(:dossier_en_construction) { create(:dossier, :en_construction) }
+      let!(:dossier_en_construction_2) { create(:dossier, :en_construction) }
+
+      it { expect(Dossier.last_editable).to eq(dossier_en_construction_2) }
+    end
   end
 
   describe 'validations' do
diff --git a/spec/views/users/dossiers/index.html.haml_spec.rb b/spec/views/users/dossiers/index.html.haml_spec.rb
index 79ee66595..c24d0980c 100644
--- a/spec/views/users/dossiers/index.html.haml_spec.rb
+++ b/spec/views/users/dossiers/index.html.haml_spec.rb
@@ -36,6 +36,21 @@ describe 'users/dossiers/index.html.haml', type: :view do
     expect(rendered).to have_link(dossier_en_construction.id.to_s, href: dossier_path(dossier_en_construction))
   end
 
+  it 'n’affiche pas une alerte pour continuer à remplir un dossier' do
+    expect(rendered).not_to have_selector('.fr-callout', count: 1)
+  end
+
+  context 'quand il y a un dossier à éditer' do
+    before do
+      assign(:last_dossier_editable, dossier_en_construction)
+      render
+    end
+    it 'affiche une alerte pour continuer à remplir un dossier' do
+      expect(rendered).to have_selector('.fr-callout', count: 1)
+      expect(rendered).to have_link(href: modifier_dossier_path(dossier_en_construction))
+    end
+  end
+
   context 'quand il n’y a aucun dossier' do
     let(:user_dossiers)    { [] }
     let(:dossiers_invites) { [] }
@@ -53,7 +68,7 @@ describe 'users/dossiers/index.html.haml', type: :view do
     let(:dossiers_invites) { [] }
 
     it 'affiche un titre adapté' do
-      expect(rendered).to have_selector('h1', text: 'Dossiers')
+      expect(rendered).to have_selector('h1', text: 'Mes dossiers')
     end
 
     it 'n’affiche la barre d’onglets' do
@@ -65,7 +80,7 @@ describe 'users/dossiers/index.html.haml', type: :view do
     let(:dossiers_invites) { create_list(:dossier, 1) }
 
     it 'affiche un titre adapté' do
-      expect(rendered).to have_selector('h1', text: 'Dossiers')
+      expect(rendered).to have_selector('h1', text: 'Mes dossiers')
     end
 
     it 'affiche la barre d’onglets' do