diff --git a/README.md b/README.md
index b5632a2..4ee752a 100644
--- a/README.md
+++ b/README.md
@@ -114,6 +114,15 @@ $response = $api->downPaymentInvoice()->document($entityId, true); // get file c
 $response = $api->downPaymentInvoice()->document($entityId, true, 'image/*'); // accept only images
 ```
 
+### Dunnings Endpoint
+```php
+$response = $api->dunning()->get($entityId);
+$response = $api->dunning()->pursue($precedingSalesVoucherId, $data);
+$response = $api->dunning()->document($entityId); // get document ID
+$response = $api->dunning()->document($entityId, true); // get file content
+$response = $api->dunning()->document($entityId, true, 'image/*'); // accept only images
+```
+
 ### Event Subscriptions Endpooint
 ```php
 $response = $api->event()->get($entityId);
diff --git a/src/Api.php b/src/Api.php
index 224f73f..764268a 100644
--- a/src/Api.php
+++ b/src/Api.php
@@ -16,6 +16,7 @@
 use Sysix\LexOffice\Clients\CreditNote;
 use Sysix\LexOffice\Clients\DeliveryNote;
 use Sysix\LexOffice\Clients\DownPaymentInvoice;
+use Sysix\LexOffice\Clients\Dunning;
 use Sysix\LexOffice\Clients\Event;
 use Sysix\LexOffice\Clients\File;
 use Sysix\LexOffice\Clients\Invoice;
@@ -109,6 +110,11 @@ public function downPaymentInvoice(): DownPaymentInvoice
         return new DownPaymentInvoice($this);
     }
 
+    public function dunning(): Dunning
+    {
+        return new Dunning($this);
+    }
+
     public function event(): Event
     {
         return new Event($this);
diff --git a/src/Clients/Dunning.php b/src/Clients/Dunning.php
new file mode 100644
index 0000000..fedb58b
--- /dev/null
+++ b/src/Clients/Dunning.php
@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Sysix\LexOffice\Clients;
+
+use Sysix\LexOffice\BaseClient;
+use Sysix\LexOffice\Clients\Traits\DocumentClientTrait;
+use Sysix\LexOffice\Clients\Traits\GetTrait;
+use Sysix\LexOffice\Clients\Traits\PursueTrait;
+
+class Dunning extends BaseClient
+{
+    use DocumentClientTrait;
+    use GetTrait;
+    use PursueTrait;
+
+    protected string $resource = 'dunnings';
+}
diff --git a/tests/ApiTest.php b/tests/ApiTest.php
index 7040397..d01ff01 100644
--- a/tests/ApiTest.php
+++ b/tests/ApiTest.php
@@ -11,6 +11,7 @@
 use Sysix\LexOffice\Clients\CreditNote;
 use Sysix\LexOffice\Clients\DeliveryNote;
 use Sysix\LexOffice\Clients\DownPaymentInvoice;
+use Sysix\LexOffice\Clients\Dunning;
 use Sysix\LexOffice\Clients\Event;
 use Sysix\LexOffice\Clients\File;
 use Sysix\LexOffice\Clients\Invoice;
@@ -43,6 +44,7 @@ public function testClients(): void
         $this->assertInstanceOf(CreditNote::class, $stub->creditNote());
         $this->assertInstanceOf(DeliveryNote::class, $stub->deliveryNote());
         $this->assertInstanceOf(DownPaymentInvoice::class, $stub->downPaymentInvoice());
+        $this->assertInstanceOf(Dunning::class, $stub->dunning());
         $this->assertInstanceOf(Event::class, $stub->event());
         $this->assertInstanceOf(File::class, $stub->file());
         $this->assertInstanceOf(Invoice::class, $stub->invoice());
diff --git a/tests/Clients/DunningTest.php b/tests/Clients/DunningTest.php
new file mode 100644
index 0000000..b3d4763
--- /dev/null
+++ b/tests/Clients/DunningTest.php
@@ -0,0 +1,97 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Sysix\LexOffice\Tests\Clients;
+
+use GuzzleHttp\Psr7\Response;
+use Psr\Http\Message\ResponseInterface;
+use Sysix\LexOffice\Clients\Dunning;
+use Sysix\LexOffice\Tests\TestClient;
+
+class DunningTest extends TestClient
+{
+    public function testGet(): void
+    {
+        [$api, $stub] = $this->createClientMockObject(Dunning::class);
+
+        $response = $stub->get('resource-id');
+
+        $this->assertInstanceOf(ResponseInterface::class, $response);
+
+        $this->assertEquals('GET', $api->getRequest()->getMethod());
+        $this->assertEquals(
+            $api->apiUrl . '/v1/dunnings/resource-id',
+            $api->getRequest()->getUri()->__toString()
+        );
+    }
+
+    public function testPursue(): void
+    {
+        [$api, $stub] = $this->createClientMockObject(Dunning::class);
+
+        $response = $stub->pursue('resource-id', [
+            'version' => 0
+        ]);
+
+        $this->assertInstanceOf(ResponseInterface::class, $response);
+
+        $this->assertEquals('POST', $api->getRequest()->getMethod());
+        $this->assertEquals(
+            $api->apiUrl . '/v1/dunnings?precedingSalesVoucherId=resource-id',
+            $api->getRequest()->getUri()->__toString()
+        );
+    }
+
+    public function testDocument(): void
+    {
+        [$api, $stub] = $this->createClientMockObject(Dunning::class);
+
+        $response = $stub->document('resource-id');
+
+        $this->assertInstanceOf(ResponseInterface::class, $response);
+
+        $this->assertEquals('GET', $api->getRequest()->getMethod());
+        $this->assertEquals(
+            $api->apiUrl . '/v1/dunnings/resource-id/document',
+            $api->getRequest()->getUri()->__toString()
+        );
+    }
+
+    public function testDocumentContent(): void
+    {
+        [$api, $stub] = $this->createClientMultiMockObject(
+            Dunning::class,
+            [
+                new Response(200, ['Content-Type' => 'application/json'], '{"documentFileId": "fake-id"}'),
+                new Response()
+            ]
+        );
+
+        $response = $stub->document('resource-id', true);
+
+        $this->assertInstanceOf(ResponseInterface::class, $response);
+
+        $this->assertEquals('GET', $api->getRequest()->getMethod());
+        $this->assertEquals(
+            $api->apiUrl . '/v1/files/fake-id',
+            $api->getRequest()->getUri()->__toString()
+        );
+    }
+
+    public function testFailedDocumentContent(): void
+    {
+        [$api, $stub] = $this->createClientMultiMockObject(
+            Dunning::class,
+            [
+                new Response(500),
+                new Response()
+            ]
+        );
+
+        $response = $stub->document('resource-id', true);
+
+        $this->assertInstanceOf(ResponseInterface::class, $response);
+        $this->assertEquals(500, $response->getStatusCode());
+    }
+}