diff --git a/app/controllers/orders_controller.rb b/app/controllers/orders_controller.rb
index 7ce04a8..9456dd9 100644
--- a/app/controllers/orders_controller.rb
+++ b/app/controllers/orders_controller.rb
@@ -126,6 +126,15 @@ class OrdersController < ApplicationController
     @total_amount = @order.total_amount_cents
     @expiring_soon = @order.expiring_soon?
 
+    # For free orders, automatically mark as paid and redirect to success
+    if @order.free?
+      @order.mark_as_paid!
+      session.delete(:pending_cart)
+      session.delete(:ticket_names)
+      session.delete(:draft_order_id)
+      return redirect_to order_path(@order), notice: "Vos billets gratuits ont été confirmés !"
+    end
+
     # Create Stripe checkout session if Stripe is configured
     if Rails.application.config.stripe[:secret_key].present?
       begin
diff --git a/app/controllers/promoter/events_controller.rb b/app/controllers/promoter/events_controller.rb
index 31e2ada..a45c7c0 100644
--- a/app/controllers/promoter/events_controller.rb
+++ b/app/controllers/promoter/events_controller.rb
@@ -5,7 +5,7 @@
 class Promoter::EventsController < ApplicationController
   before_action :authenticate_user!
   before_action :ensure_can_manage_events!
-  before_action :set_event, only: [ :show, :edit, :update, :destroy, :publish, :unpublish, :cancel, :mark_sold_out, :duplicate ]
+  before_action :set_event, only: [ :show, :edit, :update, :destroy, :publish, :unpublish, :cancel, :mark_sold_out, :mark_available, :duplicate ]
 
   # Display all events for the current promoter
   def index
@@ -93,6 +93,16 @@ class Promoter::EventsController < ApplicationController
     end
   end
 
+  # Mark event as available again
+  def mark_available
+    if @event.sold_out?
+      @event.update(state: :published)
+      redirect_to promoter_event_path(@event), notice: "Event marqué comme disponible!"
+    else
+      redirect_to promoter_event_path(@event), alert: "Cet event ne peut pas être marqué comme disponible."
+    end
+  end
+
   # Duplicate an event and all its ticket types
   def duplicate
     clone_ticket_types = params[:clone_ticket_types] == "true"
diff --git a/app/helpers/tickets_helper.rb b/app/helpers/tickets_helper.rb
index 4722254..c661310 100644
--- a/app/helpers/tickets_helper.rb
+++ b/app/helpers/tickets_helper.rb
@@ -1,2 +1,9 @@
 module TicketsHelper
+  def format_ticket_price(price_cents)
+    if price_cents == 0
+      "Gratuit"
+    else
+      number_to_currency(price_cents / 100.0, unit: "€")
+    end
+  end
 end
diff --git a/app/mailers/ticket_mailer.rb b/app/mailers/ticket_mailer.rb
index 79a066c..8164572 100755
--- a/app/mailers/ticket_mailer.rb
+++ b/app/mailers/ticket_mailer.rb
@@ -1,4 +1,6 @@
 class TicketMailer < ApplicationMailer
+  helper :tickets
+
   def purchase_confirmation_order(order)
     @order = order
     @user = order.user
diff --git a/app/models/event.rb b/app/models/event.rb
index 674770c..2fa5daa 100755
--- a/app/models/event.rb
+++ b/app/models/event.rb
@@ -55,7 +55,6 @@ class Event < ApplicationRecord
   # Scope for published events ordered by start time
   scope :upcoming, -> { published.where("start_time >= ?", Time.current).order(start_time: :asc) }
 
-
   # === Instance Methods ===
 
   # Check if coordinates were successfully geocoded or are fallback coordinates
diff --git a/app/models/order.rb b/app/models/order.rb
index 666a6a3..3c84bc7 100644
--- a/app/models/order.rb
+++ b/app/models/order.rb
@@ -116,6 +116,11 @@ class Order < ApplicationRecord
     promoter_payout_cents / 100.0
   end
 
+  # Check if order contains only free tickets
+  def free?
+    total_amount_cents == 0
+  end
+
   # Create Stripe invoice for accounting records
   #
   # This method creates a post-payment invoice in Stripe for accounting purposes
diff --git a/app/models/ticket.rb b/app/models/ticket.rb
index 51b0ae1..94b2508 100755
--- a/app/models/ticket.rb
+++ b/app/models/ticket.rb
@@ -9,7 +9,7 @@ class Ticket < ApplicationRecord
   validates :qr_code, presence: true, uniqueness: true
   validates :order_id, presence: true
   validates :ticket_type_id, presence: true
-  validates :price_cents, presence: true, numericality: { greater_than: 0 }
+  validates :price_cents, presence: true, numericality: { greater_than_or_equal_to: 0 }
   validates :status, presence: true, inclusion: { in: %w[draft active used expired refunded] }
   validates :first_name, presence: true
   validates :last_name, presence: true
diff --git a/app/models/ticket_type.rb b/app/models/ticket_type.rb
index f06cfd5..1274758 100755
--- a/app/models/ticket_type.rb
+++ b/app/models/ticket_type.rb
@@ -6,7 +6,7 @@ class TicketType < ApplicationRecord
   # Validations
   validates :name, presence: true, length: { minimum: 3, maximum: 50 }
   validates :description, presence: true, length: { minimum: 10, maximum: 500 }
-  validates :price_cents, presence: true, numericality: { greater_than: 0 }
+  validates :price_cents, presence: true, numericality: { greater_than_or_equal_to: 0 }
   validates :quantity, presence: true, numericality: { only_integer: true, greater_than: 0 }
   validates :sale_start_at, presence: true
   validates :sale_end_at, presence: true
@@ -48,6 +48,10 @@ class TicketType < ApplicationRecord
     [ quantity - tickets.count, 0 ].max
   end
 
+  def free?
+    price_cents == 0
+  end
+
   def sales_status
     return :draft if sale_start_at.nil? || sale_end_at.nil?
     return :expired if sale_end_at < Time.current
diff --git a/app/views/components/_ticket_card.html.erb b/app/views/components/_ticket_card.html.erb
index 11fe4d5..81c9056 100755
--- a/app/views/components/_ticket_card.html.erb
+++ b/app/views/components/_ticket_card.html.erb
@@ -7,7 +7,7 @@
       </div>
       <div class="text-right">
         <p class="text-xl font-bold text-purple-700 <%= "text-gray-400" if sold_out %>">
-          <%= number_to_currency(price_cents / 100.0, unit: "€") %>
+          <%= format_ticket_price(price_cents) %>
         </p>
       </div>
     </div>
diff --git a/app/views/events/show.html.erb b/app/views/events/show.html.erb
index 02f8dd1..00ccc34 100755
--- a/app/views/events/show.html.erb
+++ b/app/views/events/show.html.erb
@@ -135,11 +135,9 @@
               controller: "ticket-selection",
               ticket_selection_target: "form",
               ticket_selection_event_slug_value: @event.slug,
-    ticket_selection_event_id_value: @event.id,
-    ticket_selection_order_new_url_value: event_order_new_path(@event.slug, @event.id),
-    ticket_selection_store_cart_url_value: api_v1_store_cart_path,
-    ticket_selection_order_new_url_value: event_order_new_path(@event.slug, @event.id),
-    ticket_selection_store_cart_url_value: api_v1_store_cart_path
+              ticket_selection_event_id_value: @event.id,
+              ticket_selection_order_new_url_value: event_order_new_path(@event.slug, @event.id),
+              ticket_selection_store_cart_url_value: api_v1_store_cart_path
   } do |form| %>
 
               <div class="bg-gradient-to-br from-purple-50 to-indigo-50 rounded-2xl border border-purple-100 p-6 shadow-sm">
diff --git a/app/views/promoter/events/show.html.erb b/app/views/promoter/events/show.html.erb
index fe95cb4..ce0b4a1 100644
--- a/app/views/promoter/events/show.html.erb
+++ b/app/views/promoter/events/show.html.erb
@@ -132,10 +132,14 @@
       <div class="bg-blue-50 border border-blue-200 rounded-2xl p-4">
         <div class="flex items-center">
           <i data-lucide="users" class="w-5 h-5 text-blue-400 mr-3"></i>
-          <div>
+          <div class="flex-1">
             <h3 class="text-sm font-medium text-blue-900">Événement complet</h3>
             <p class="text-sm text-blue-700">Tous les billets pour cet événement ont été vendus.</p>
           </div>
+          <%= button_to mark_available_promoter_event_path(@event), method: :patch, class: "ml-4 inline-flex items-center px-3 py-1 bg-white border border-blue-300 text-blue-700 text-sm font-medium rounded-lg hover:bg-blue-50 transition-colors duration-200" do %>
+            <i data-lucide="refresh-ccw" class="w-4 h-4 mr-1"></i>
+            Marquer comme disponible
+          <% end %>
         </div>
       </div>
     <% end %>
@@ -273,10 +277,19 @@
             <i data-lucide="ticket" class="w-4 h-4 mr-2"></i>
             Gérer les types de billets
           <% end %>
-          <%= button_to mark_sold_out_promoter_event_path(@event), method: :patch, class: "w-full inline-flex items-center justify-center px-4 py-3 bg-gray-50 text-gray-700 font-medium text-sm rounded-lg hover:bg-gray-100 transition-colors duration-200", disabled: !@event.published? do %>
-            <i data-lucide="users" class="w-4 h-4 mr-2"></i>
-            Marquer comme complet
+          
+          <% if @event.sold_out? %>
+            <%= button_to mark_available_promoter_event_path(@event), method: :patch, class: "w-full inline-flex items-center justify-center px-4 py-3 bg-blue-50 text-blue-700 font-medium text-sm rounded-lg hover:bg-blue-100 transition-colors duration-200" do %>
+              <i data-lucide="refresh-ccw" class="w-4 h-4 mr-2"></i>
+              Marquer comme disponible
+            <% end %>
+          <% elsif @event.published? %>
+            <%= button_to mark_sold_out_promoter_event_path(@event), method: :patch, class: "w-full inline-flex items-center justify-center px-4 py-3 bg-gray-50 text-gray-700 font-medium text-sm rounded-lg hover:bg-gray-100 transition-colors duration-200" do %>
+              <i data-lucide="users" class="w-4 h-4 mr-2"></i>
+              Marquer comme complet
+            <% end %>
           <% end %>
+          
           <hr class="border-gray-200">
           <%= button_to promoter_event_path(@event), method: :delete,
               data: { confirm: "Êtes-vous sûr de vouloir supprimer cet événement ? Cette action est irréversible." },
diff --git a/app/views/promoter/ticket_types/edit.html.erb b/app/views/promoter/ticket_types/edit.html.erb
index 0f7e836..0ba89f4 100644
--- a/app/views/promoter/ticket_types/edit.html.erb
+++ b/app/views/promoter/ticket_types/edit.html.erb
@@ -81,7 +81,7 @@
             <div class="relative">
               <%= form.number_field :price_euros,
                   step: 0.01,
-                  min: 0.01,
+                  min: 0,
                   class: "w-full px-4 py-2 pl-8 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent",
                   data: { "ticket-type-form-target": "price", action: "input->ticket-type-form#updateTotal" } %>
               <div class="absolute left-3 top-2.5 text-gray-500">€</div>
@@ -91,6 +91,8 @@
                 <i data-lucide="alert-triangle" class="w-4 h-4 inline mr-1"></i>
                 Modifier le prix n'affectera pas les billets déjà vendus
               </p>
+            <% else %>
+              <p class="mt-1 text-sm text-gray-500">Prix unitaire du billet (0€ pour un billet gratuit)</p>
             <% end %>
           </div>
 
@@ -163,8 +165,10 @@
             <div class="flex">
               <i data-lucide="info" class="w-5 h-5 text-blue-400 mt-0.5 mr-2"></i>
               <p class="text-sm text-blue-800">
-                <strong>Événement:</strong> <%= @event.start_time.strftime("%d/%m/%Y à %H:%M") %><br>
-                Les ventes doivent se terminer avant le début de l'événement.
+                <strong>Début d'événement :</strong> <%= @event.start_time.strftime("%d/%m/%Y à %H:%M") %><br>
+                <% unless @event.allow_booking_during_event? %>
+                  Les ventes doivent se terminer avant le début de l'événement.
+                <% end %>
               </p>
             </div>
           </div>
@@ -208,12 +212,6 @@
           <%= link_to promoter_event_ticket_type_path(@event, @ticket_type), class: "text-gray-500 hover:text-gray-700 transition-colors" do %>
             Annuler
           <% end %>
-          <% if @ticket_type.tickets.any? %>
-            <p class="text-sm text-yellow-600">
-              <i data-lucide="info" class="w-4 h-4 inline mr-1"></i>
-              <%= pluralize(@ticket_type.tickets.count, 'billet') %> déjà vendu(s)
-            </p>
-          <% end %>
         </div>
 
         <div class="flex items-center space-x-3">
diff --git a/app/views/promoter/ticket_types/new.html.erb b/app/views/promoter/ticket_types/new.html.erb
index dd57e59..3701c35 100644
--- a/app/views/promoter/ticket_types/new.html.erb
+++ b/app/views/promoter/ticket_types/new.html.erb
@@ -42,7 +42,7 @@
       <!-- Basic Information -->
       <div class="bg-white rounded-lg border border-gray-200 p-6">
         <h3 class="text-lg font-semibold text-gray-900 mb-6">Informations générales</h3>
-        
+
         <div class="space-y-6">
           <div>
             <%= form.label :name, "Nom du type de billet", class: "block text-sm font-medium text-gray-700 mb-2" %>
@@ -61,25 +61,25 @@
       <!-- Pricing & Quantity -->
       <div class="bg-white rounded-lg border border-gray-200 p-6">
         <h3 class="text-lg font-semibold text-gray-900 mb-6">Prix et quantité</h3>
-        
+
         <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
           <div>
             <%= form.label :price_euros, "Prix (€)", class: "block text-sm font-medium text-gray-700 mb-2" %>
             <div class="relative">
-              <%= form.number_field :price_euros, 
-                  step: 0.01, 
-                  min: 0.01, 
+              <%= form.number_field :price_euros,
+                  step: 0.01,
+                  min: 0,
                   class: "w-full px-4 py-2 pl-8 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent",
                   data: { "ticket-type-form-target": "price", action: "input->ticket-type-form#updateTotal" } %>
               <div class="absolute left-3 top-2.5 text-gray-500">€</div>
             </div>
-            <p class="mt-1 text-sm text-gray-500">Prix unitaire du billet</p>
+            <p class="mt-1 text-sm text-gray-500">Prix unitaire du billet (0€ pour un billet gratuit)</p>
           </div>
-          
+
           <div>
             <%= form.label :quantity, "Quantité disponible", class: "block text-sm font-medium text-gray-700 mb-2" %>
-            <%= form.number_field :quantity, 
-                min: 1, 
+            <%= form.number_field :quantity,
+                min: 1,
                 class: "w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent",
                 data: { "ticket-type-form-target": "quantity", action: "input->ticket-type-form#updateTotal" } %>
             <p class="mt-1 text-sm text-gray-500">Nombre total de billets de ce type</p>
@@ -100,18 +100,18 @@
       <!-- Sales Period -->
       <div class="bg-white rounded-lg border border-gray-200 p-6">
         <h3 class="text-lg font-semibold text-gray-900 mb-6">Période de vente</h3>
-        
+
         <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
           <div>
             <%= form.label :sale_start_at, "Début des ventes", class: "block text-sm font-medium text-gray-700 mb-2" %>
-            <%= form.datetime_local_field :sale_start_at, 
+            <%= form.datetime_local_field :sale_start_at,
                 value: @ticket_type.sale_start_at&.strftime("%Y-%m-%dT%H:%M"),
                 class: "w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent" %>
           </div>
-          
+
           <div>
             <%= form.label :sale_end_at, "Fin des ventes", class: "block text-sm font-medium text-gray-700 mb-2" %>
-            <%= form.datetime_local_field :sale_end_at, 
+            <%= form.datetime_local_field :sale_end_at,
                 value: @ticket_type.sale_end_at&.strftime("%Y-%m-%dT%H:%M"),
                 class: "w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent" %>
             <p class="mt-1 text-sm text-gray-500">Les ventes s'arrêtent automatiquement à cette date</p>
@@ -123,8 +123,11 @@
             <div class="flex">
               <i data-lucide="info" class="w-5 h-5 text-blue-400 mt-0.5 mr-2"></i>
               <p class="text-sm text-blue-800">
-                <strong>Événement:</strong> <%= @event.start_time.strftime("%d/%m/%Y à %H:%M") %><br>
-                Les ventes doivent se terminer avant le début de l'événement.
+                <strong>Début d'événement :</strong> <%= @event.start_time.strftime("%d/%m/%Y à %H:%M") %><br>
+
+                <% unless @event.allow_booking_during_event? %>
+                  Les ventes doivent se terminer avant le début de l'événement.
+                <% end %>
               </p>
             </div>
           </div>
@@ -134,13 +137,13 @@
       <!-- Access Requirements -->
       <div class="bg-white rounded-lg border border-gray-200 p-6">
         <h3 class="text-lg font-semibold text-gray-900 mb-6">Conditions d'accès</h3>
-        
+
         <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
           <div>
             <%= form.label :minimum_age, "Âge minimum", class: "block text-sm font-medium text-gray-700 mb-2" %>
-            <%= form.number_field :minimum_age, 
-                min: 0, 
-                max: 120, 
+            <%= form.number_field :minimum_age,
+                min: 0,
+                max: 120,
                 class: "w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent",
                 placeholder: "Laisser vide si aucune restriction" %>
             <p class="mt-1 text-sm text-gray-500">Âge minimum requis (optionnel)</p>
@@ -167,11 +170,11 @@
             Annuler
           <% end %>
         </div>
-        
+
         <div class="flex items-center space-x-3">
           <%= form.submit "Créer le type de billet", class: "inline-flex items-center px-6 py-3 bg-purple-600 text-white font-medium rounded-lg hover:bg-purple-700 transition-colors duration-200" %>
         </div>
       </div>
     <% end %>
   </div>
-</div>
\ No newline at end of file
+</div>
diff --git a/app/views/promoter/ticket_types/show.html.erb b/app/views/promoter/ticket_types/show.html.erb
index fea82b3..a5d1fe1 100644
--- a/app/views/promoter/ticket_types/show.html.erb
+++ b/app/views/promoter/ticket_types/show.html.erb
@@ -138,7 +138,7 @@
                 </div>
                 <div class="text-right">
                   <p class="text-sm font-medium text-gray-900">
-                    <%= number_to_currency(ticket.price_cents / 100.0, unit: "€") %>
+                    <%= format_ticket_price(ticket.price_cents) %>
                   </p>
                   <p class="text-xs text-gray-500">
                     <%= ticket.created_at.strftime("%d/%m/%Y") %>
@@ -164,7 +164,7 @@
         <div class="space-y-4">
           <div class="text-center p-4 bg-purple-50 rounded-lg">
             <div class="text-3xl font-bold text-purple-600">
-              <%= number_to_currency(@ticket_type.price_euros, unit: "€") %>
+              <%= format_ticket_price(@ticket_type.price_cents) %>
             </div>
             <div class="text-sm text-gray-500">Prix unitaire</div>
           </div>
diff --git a/app/views/ticket_mailer/purchase_confirmation.html.erb b/app/views/ticket_mailer/purchase_confirmation.html.erb
index fbb52e2..7f276a6 100755
--- a/app/views/ticket_mailer/purchase_confirmation.html.erb
+++ b/app/views/ticket_mailer/purchase_confirmation.html.erb
@@ -57,7 +57,7 @@
                 <p style="margin: 5px 0 0;"><a href="<%= ticket_url(ticket) %>" style="color: #4c1d95; text-decoration: none; font-size: 14px;">📱 Voir le détail et le code QR</a></p>
               </div>
               <div style="text-align: right;">
-                <p style="margin: 0; font-weight: bold; color: #212529;"><%= number_to_currency(ticket.price_cents / 100.0, unit: "€") %></p>
+                <p style="margin: 0; font-weight: bold; color: #212529;"><%= format_ticket_price(ticket.price_cents) %></p>
               </div>
             </div>
           </div>
@@ -83,7 +83,7 @@
           </div>
           <div style="text-align: right;">
             <p style="margin: 0; color: #6c757d; font-size: 14px;">Prix</p>
-            <p style="margin: 5px 0 0; font-weight: bold; color: #212529;"><%= number_to_currency(@ticket.price_cents / 100.0, unit: "€") %></p>
+            <p style="margin: 5px 0 0; font-weight: bold; color: #212529;"><%= format_ticket_price(@ticket.price_cents) %></p>
           </div>
         </div>
 
diff --git a/app/views/ticket_mailer/purchase_confirmation.text.erb b/app/views/ticket_mailer/purchase_confirmation.text.erb
index b4d9c78..3329cb9 100755
--- a/app/views/ticket_mailer/purchase_confirmation.text.erb
+++ b/app/views/ticket_mailer/purchase_confirmation.text.erb
@@ -13,11 +13,11 @@ DÉTAILS DE VOTRE COMMANDE
 Événement : <%= @event.name %>
 Date & heure : <%= @event.start_time.strftime("%d %B %Y à %H:%M") %>
 Nombre de billets : <%= @tickets.count %>
-Total : <%= number_to_currency(@order.total_amount_euros, unit: "€") %>
+Total : <%= @order.free? ? "Gratuit" : number_to_currency(@order.total_amount_euros, unit: "€") %>
 
 BILLETS INCLUS :
 <% @tickets.each_with_index do |ticket, index| %>
-- Billet #<%= index + 1 %> : <%= ticket.ticket_type.name %> - <%= number_to_currency(ticket.price_cents / 100.0, unit: "€") %>
+- Billet #<%= index + 1 %> : <%= ticket.ticket_type.name %> - <%= format_ticket_price(ticket.price_cents) %>
 <% end %>
 
 Vos billets sont attachés à cet email en format PDF. Présentez-les à l'entrée de l'événement pour y accéder.
@@ -32,7 +32,7 @@ DÉTAILS DE VOTRE BILLET
 Événement : <%= @event.name %>
 Type de billet : <%= @ticket.ticket_type.name %>
 Date & heure : <%= @event.start_time.strftime("%d %B %Y à %H:%M") %>
-Prix : <%= number_to_currency(@ticket.price_cents / 100.0, unit: "€") %>
+Prix : <%= format_ticket_price(@ticket.price_cents) %>
 
 Votre billet est attaché à cet email en format PDF. Présentez-le à l'entrée de l'événement pour y accéder.
 
diff --git a/app/views/tickets/show.html.erb b/app/views/tickets/show.html.erb
index 94da8ac..cba7c3f 100644
--- a/app/views/tickets/show.html.erb
+++ b/app/views/tickets/show.html.erb
@@ -80,7 +80,7 @@
               <div>
                 <label class="block text-sm font-medium text-gray-500 mb-1">Prix</label>
                 <p class="text-xl font-bold text-gray-900">
-                  <%= number_to_currency(@ticket.price_euros, unit: "€", separator: ",", delimiter: " ", format: "%n %u") %>
+                  <%= format_ticket_price(@ticket.price_cents) %>
                 </p>
               </div>
             </div>
diff --git a/config/routes.rb b/config/routes.rb
index d4bf3be..ce1b6b6 100755
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -81,6 +81,7 @@ Rails.application.routes.draw do
         patch :unpublish
         patch :cancel
         patch :mark_sold_out
+        patch :mark_available
         post :duplicate
       end
 
diff --git a/test/controllers/orders_controller_test.rb b/test/controllers/orders_controller_test.rb
index aaa6a3c..1cb416d 100644
--- a/test/controllers/orders_controller_test.rb
+++ b/test/controllers/orders_controller_test.rb
@@ -125,7 +125,7 @@ class OrdersControllerTest < ActionDispatch::IntegrationTest
     assert_equal "draft", new_order.status
     assert_equal @user, new_order.user
     assert_equal @event, new_order.event
-    assert_equal @ticket_type.price_cents + 100, new_order.total_amount_cents # includes 1€ service fee
+    assert_equal @ticket_type.price_cents, new_order.total_amount_cents # Service fee deducted from promoter payout, not added to customer
 
     assert_redirected_to checkout_order_path(new_order)
     assert_equal new_order.id, session[:draft_order_id]
diff --git a/test/models/order_test.rb b/test/models/order_test.rb
index 6db2124..0a67b6b 100644
--- a/test/models/order_test.rb
+++ b/test/models/order_test.rb
@@ -603,4 +603,22 @@ class OrderTest < ActiveSupport::TestCase
     result = order.stripe_invoice_pdf_url
     assert_nil result
   end
+
+  test "free? should return true for zero amount orders" do
+    free_order = Order.create!(
+      user: @user, event: @event, total_amount_cents: 0,
+      status: "draft", payment_attempts: 0
+    )
+
+    assert free_order.free?
+  end
+
+  test "free? should return false for non-zero amount orders" do
+    paid_order = Order.create!(
+      user: @user, event: @event, total_amount_cents: 1000,
+      status: "draft", payment_attempts: 0
+    )
+
+    assert_not paid_order.free?
+  end
 end
diff --git a/test/models/ticket_type_test.rb b/test/models/ticket_type_test.rb
index 3aea6b0..0b3caf3 100755
--- a/test/models/ticket_type_test.rb
+++ b/test/models/ticket_type_test.rb
@@ -244,4 +244,38 @@ class TicketTypeTest < ActiveSupport::TestCase
     )
     assert_not ticket_type.save
   end
+
+  test "should allow free tickets with zero price" do
+    user = User.create!(
+      email: "test@example.com",
+      password: "password123",
+      password_confirmation: "password123"
+    )
+
+    event = Event.create!(
+      name: "Test Event",
+      slug: "test-event",
+      description: "Valid description for the event that is long enough",
+      latitude: 48.8566,
+      longitude: 2.3522,
+      venue_name: "Test Venue",
+      venue_address: "123 Test Street",
+      user: user
+    )
+
+    ticket_type = TicketType.new(
+      name: "Free Ticket",
+      description: "Valid description for the free ticket type",
+      price_cents: 0,
+      quantity: 50,
+      sale_start_at: Time.current,
+      sale_end_at: Time.current + 1.day,
+      event: event
+    )
+
+    assert ticket_type.save
+    assert ticket_type.free?
+    assert_equal 0, ticket_type.price_cents
+    assert_equal 0.0, ticket_type.price_euros
+  end
 end
diff --git a/test/services/stripe_invoice_service_test.rb b/test/services/stripe_invoice_service_test.rb
index 60e914e..ebbd7d2 100644
--- a/test/services/stripe_invoice_service_test.rb
+++ b/test/services/stripe_invoice_service_test.rb
@@ -210,25 +210,12 @@ class StripeInvoiceServiceTest < ActiveSupport::TestCase
       }
     }
 
-    expected_service_fee_line_item = {
-      customer: "cus_test123",
-      invoice: "in_test123",
-      amount: 100,
-      currency: "eur",
-      description: "Frais de service - Frais de traitement de la commande",
-      metadata: {
-        item_type: "service_fee",
-        amount_cents: 100
-      }
-    }
-
     mock_invoice = mock("invoice")
     mock_invoice.stubs(:id).returns("in_test123")
     mock_invoice.stubs(:finalize_invoice).returns(mock_invoice)
     mock_invoice.expects(:pay)
     Stripe::Invoice.expects(:create).returns(mock_invoice)
-    Stripe::InvoiceItem.expects(:create).with(expected_ticket_line_item)
-    Stripe::InvoiceItem.expects(:create).with(expected_service_fee_line_item)
+    Stripe::InvoiceItem.expects(:create).with(expected_ticket_line_item) # Only for tickets, no service fee
 
     result = @service.create_post_payment_invoice
     assert_not_nil result