diff --git a/app/Http/Controllers/Applications/InvitationController.php b/app/Http/Controllers/Applications/InvitationController.php
index 4aeebb7..251d00c 100644
--- a/app/Http/Controllers/Applications/InvitationController.php
+++ b/app/Http/Controllers/Applications/InvitationController.php
@@ -27,6 +27,11 @@ public function store(Request $request)
                 "code" => "The registration period for new dealers has ended, please check back next year.",
             ]);
         }
+        if ($applicationType === ApplicationType::Assistant && !Carbon::parse(config('ef.assistant_end_date'))->isFuture()) {
+            throw ValidationException::withMessages([
+                "code" => "The registration period for new assistants has ended.",
+            ]);
+        }
 
         $applications = Application::where('type', ApplicationType::Dealer)
             ->where(function ($q) use ($request) {
diff --git a/config/ef.php b/config/ef.php
index b8f0274..5be6ab2 100644
--- a/config/ef.php
+++ b/config/ef.php
@@ -3,6 +3,7 @@
 
 return [
     'reg_end_date' => Carbon::create(2023, 4, 30, 23, 59, 0, 'Europe/Berlin'),
+    'assistant_end_date' => Carbon::create(2023, 8, 20, 23, 59, 0, 'Europe/Berlin'),
     'dealers_tos_url' => 'https://www.eurofurence.org/EF27/dealersden/',
     'idp_url' => 'https://identity.eurofurence.org',
     'dealers_email' => 'dealers@eurofurence.org',
diff --git a/resources/views/application/invitees.blade.php b/resources/views/application/invitees.blade.php
index 5d9d3bb..d6b9b9c 100644
--- a/resources/views/application/invitees.blade.php
+++ b/resources/views/application/invitees.blade.php
@@ -68,7 +68,7 @@ class="form-text">Ask your share to go to dealers.eurofurence.org and click on J
                         <div class="card-title h5 mb-0"><span class="badge bg-secondary">{{ $assistants_active_count }}/{{ $assistants_count }}</span> Invite assistants to your space</div>
                     </div>
                     <ul class="list-group list-group-flush">
-                        @if($assistants_active_count < $assistants_count)
+                        @if($assistants_active_count < $assistants_count && Carbon\Carbon::parse(config('ef.assistant_end_date'))->isFuture())
                             <li class="list-group-item">
                                 <form method="POST" action="{{ route('applications.invitees.regenerate-keys') }}">
                                     @csrf
diff --git a/resources/views/dashboard.blade.php b/resources/views/dashboard.blade.php
index 5ea576a..01ac97b 100644
--- a/resources/views/dashboard.blade.php
+++ b/resources/views/dashboard.blade.php
@@ -186,14 +186,16 @@ class="btn btn-sm btn-outline-primary">Assistants & Shares</a>
                     </div>
                 </div>
             @endif
-            <div class="card mb-2">
-                <div class="card-body text-center">
-                    <h5 class="card-title display-6">Become a Dealer Assistant</h5>
-                    <p class="card-text lead">You have been invited to support an existing Dealership as a Dealer Assistant.
-                    </p>
-                    <a href="{{ route('join') }}" class="btn btn-lg btn-outline-primary">I have an invitation code</a>
+            @if (Carbon\Carbon::parse(config('ef.assistant_end_date'))->isFuture())
+                <div class="card mb-2">
+                    <div class="card-body text-center">
+                        <h5 class="card-title display-6">Become a Dealer Assistant</h5>
+                        <p class="card-text lead">You have been invited to support an existing Dealership as a Dealer Assistant.
+                        </p>
+                        <a href="{{ route('join') }}" class="btn btn-lg btn-outline-primary">I have an invitation code</a>
+                    </div>
                 </div>
-            </div>
+            @endif
         </div>
     </div>