diff --git a/migrations/Version20231103093456.php b/migrations/Version20231103093456.php
new file mode 100644
index 0000000..7343a32
--- /dev/null
+++ b/migrations/Version20231103093456.php
@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use App\Entity\Assignment;
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20231103093456 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 assignment ADD status VARCHAR(64) NOT NULL');
+    }
+
+    public function postUp(Schema $schema): void
+    {
+        $this->connection->executeQuery('UPDATE assignment SET status=?', [Assignment::STATUS_OPEN]);
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE assignment DROP status');
+    }
+}
diff --git a/src/Entity/Assignment.php b/src/Entity/Assignment.php
index eb42e98..a10127f 100644
--- a/src/Entity/Assignment.php
+++ b/src/Entity/Assignment.php
@@ -21,6 +21,9 @@ class Assignment implements BlameableEntityInterface, TimestampableEntityInterfa
     use TimestampableEntity;
     use SoftDeletableEntity;
 
+    public const STATUS_OPEN = 'open';
+    public const STATUS_CLOSED = 'closed';
+
     #[ORM\Id]
     #[ORM\GeneratedValue]
     #[ORM\Column]
@@ -84,9 +87,13 @@ class Assignment implements BlameableEntityInterface, TimestampableEntityInterfa
     #[ORM\ManyToOne]
     private ?User $owner = null;
 
+    #[ORM\Column(length: 64)]
+    private ?string $status;
+
     public function __construct()
     {
         $this->uuid = Uuid::v4();
+        $this->status = static::STATUS_OPEN;
         $this->fees = new ArrayCollection();
         $this->applications = new ArrayCollection();
         $this->dispositions = new ArrayCollection();
@@ -436,4 +443,16 @@ class Assignment implements BlameableEntityInterface, TimestampableEntityInterfa
 
         return $this;
     }
+
+    public function getStatus(): ?string
+    {
+        return $this->status;
+    }
+
+    public function setStatus(string $status): static
+    {
+        $this->status = $status;
+
+        return $this;
+    }
 }
diff --git a/src/Form/AssignmentType.php b/src/Form/AssignmentType.php
index 058f2f7..11854a4 100644
--- a/src/Form/AssignmentType.php
+++ b/src/Form/AssignmentType.php
@@ -12,6 +12,7 @@ use Doctrine\ORM\EntityRepository;
 use Symfony\Bridge\Doctrine\Form\Type\EntityType;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
+use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
 use Symfony\Component\Form\Extension\Core\Type\CollectionType;
 use Symfony\Component\Form\Extension\Core\Type\IntegerType;
 use Symfony\Component\Form\Extension\Core\Type\TextareaType;
@@ -23,6 +24,13 @@ class AssignmentType extends AbstractType
     public function buildForm(FormBuilderInterface $builder, array $options): void
     {
         $builder
+            ->add('status', ChoiceType::class, [
+                'label' => 'Status',
+                'choices' => [
+                    'offen' => Assignment::STATUS_OPEN,
+                    'geschlossen' => Assignment::STATUS_CLOSED,
+                ],
+            ])
             ->add('availableDispositions', IntegerType::class, [
                 'label' => 'zu vergeben',
                 'required' => false,
diff --git a/src/Security/Voter/AssignmentVoter.php b/src/Security/Voter/AssignmentVoter.php
index b28dae8..e84a8e4 100644
--- a/src/Security/Voter/AssignmentVoter.php
+++ b/src/Security/Voter/AssignmentVoter.php
@@ -43,6 +43,11 @@ class AssignmentVoter extends Voter
         /** @var Assignment $assignment */
         $assignment = $subject;
 
+        // Only allow applications to open assignments
+        if (Assignment::STATUS_CLOSED === $assignment->getStatus()) {
+            return false;
+        }
+
         // Only allow applications on empty slots
         $availableSlots = (int) $assignment->getAvailableDispositions();
         if (0 < $availableSlots) {
diff --git a/templates/admin/assignment/_form.html.twig b/templates/admin/assignment/_form.html.twig
index 1638925..b7452ff 100644
--- a/templates/admin/assignment/_form.html.twig
+++ b/templates/admin/assignment/_form.html.twig
@@ -12,10 +12,11 @@
 
 {{ form_start(form) }}
 <div class="flex flex-col space-y-4 pb-8">
-    <div class="grid lg:grid-cols-5 gap-x-8 gap-y-4">
+    <div class="grid lg:grid-cols-6 gap-x-4 gap-y-4">
         <div class="lg:col-span-3">
             {{ form_row(form.destination) }}
         </div>
+        {{ form_row(form.status) }}
         {{ form_row(form.availableDispositions) }}
         <div>
             <h4 class="font-bold pb-2">