diff --git a/migrations/Version20231018151251.php b/migrations/Version20231018151251.php
new file mode 100644
index 0000000..91315f4
--- /dev/null
+++ b/migrations/Version20231018151251.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20231018151251 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE availability ADD description LONGTEXT DEFAULT NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE availability DROP description');
+    }
+}
diff --git a/src/Entity/Availability.php b/src/Entity/Availability.php
index dc73cb1..4cb1eac 100644
--- a/src/Entity/Availability.php
+++ b/src/Entity/Availability.php
@@ -31,6 +31,9 @@ class Availability implements BlameableEntityInterface, TimestampableEntityInter
     #[Assert\GreaterThan(propertyPath: 'dateFrom', message: 'Das Datum muss nach dem Beginndatum liegen')]
     private ?\DateTimeImmutable $dateTo = null;
 
+    #[ORM\Column(type: Types::TEXT, nullable: true)]
+    private ?string $description = null;
+
     #[ORM\ManyToOne(inversedBy: 'customAvailabilities')]
     private ?Teamer $owner = null;
 
@@ -76,6 +79,18 @@ class Availability implements BlameableEntityInterface, TimestampableEntityInter
         return $this;
     }
 
+    public function getDescription(): ?string
+    {
+        return $this->description;
+    }
+
+    public function setDescription(?string $description): static
+    {
+        $this->description = $description;
+
+        return $this;
+    }
+
     public function getOwner(): ?Teamer
     {
         return $this->owner;
diff --git a/src/Form/AvailabilityType.php b/src/Form/AvailabilityType.php
index b34603e..c0d4ec2 100644
--- a/src/Form/AvailabilityType.php
+++ b/src/Form/AvailabilityType.php
@@ -4,6 +4,7 @@ namespace App\Form;
 
 use App\Entity\Availability;
 use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
@@ -20,6 +21,10 @@ class AvailabilityType extends AbstractType
                 'label' => 'Datum bis',
                 'min_date' => new \DateTimeImmutable(),
             ])
+            ->add('description', TextType::class, [
+                'label' => 'Anmerkung',
+                'required' => false,
+            ])
         ;
     }
 
diff --git a/templates/admin/system/availability/create.html.twig b/templates/admin/system/availability/create.html.twig
index 296c843..6385948 100644
--- a/templates/admin/system/availability/create.html.twig
+++ b/templates/admin/system/availability/create.html.twig
@@ -2,6 +2,7 @@
 <div class="flex flex-col space-y-4 pb-8">
     {{ form_row(form.dateFrom) }}
     {{ form_row(form.dateTo) }}
+    {{ form_row(form.description) }}
 </div>
 <button type="submit" class="btn">
     Speichern
diff --git a/templates/admin/system/availability/index.html.twig b/templates/admin/system/availability/index.html.twig
index 1f12893..1fdcec7 100644
--- a/templates/admin/system/availability/index.html.twig
+++ b/templates/admin/system/availability/index.html.twig
@@ -11,12 +11,15 @@
             <table class="data-table">
                 <thead>
                 <tr>
-                    <th class="w-1/3">
+                    <th class="w-1/4">
                         {{ knp_pagination_sortable(pagination, 'Datum von', 'availability.dateFrom') }}
                     </th>
-                    <th class="w-1/3">
+                    <th class="w-1/4">
                         {{ knp_pagination_sortable(pagination, 'Datum bis', 'availability.dateTo') }}
                     </th>
+                    <th class="w-1/4">
+                        {{ knp_pagination_sortable(pagination, 'Beschreibung', 'availability.description') }}
+                    </th>
                     <th></th>
                 </tr>
                 </thead>
@@ -29,6 +32,9 @@
                         <td>
                             {{ availability.dateTo|date('d.m.Y') }}
                         </td>
+                        <td>
+                            {{ availability.description|default('-') }}
+                        </td>
                         <td>
                             <div class="flex items-center space-x-2 justify-end">
                                 <button type="button"
diff --git a/templates/teamer/profile/availability/create.html.twig b/templates/teamer/profile/availability/create.html.twig
index 296c843..6385948 100644
--- a/templates/teamer/profile/availability/create.html.twig
+++ b/templates/teamer/profile/availability/create.html.twig
@@ -2,6 +2,7 @@
 <div class="flex flex-col space-y-4 pb-8">
     {{ form_row(form.dateFrom) }}
     {{ form_row(form.dateTo) }}
+    {{ form_row(form.description) }}
 </div>
 <button type="submit" class="btn">
     Speichern