diff --git a/src/Api/Transactions/CaptureRequest.php b/src/Api/Transactions/CaptureRequest.php
index 8d6e674..c6e5a7e 100644
--- a/src/Api/Transactions/CaptureRequest.php
+++ b/src/Api/Transactions/CaptureRequest.php
@@ -7,21 +7,153 @@
 namespace MultiSafepay\Api\Transactions;
 
 use MultiSafepay\Api\Base\RequestBody;
-use MultiSafepay\Api\Base\RequestBodyInterface;
+use MultiSafepay\ValueObject\Amount;
 
 /**
- * Class UpdateRequest
+ * Class CaptureRequest
  * @package MultiSafepay\Api\Transactions
  */
 class CaptureRequest extends RequestBody
 {
     public const CAPTURE_MANUAL_TYPE = 'manual';
 
+    /**
+     * @var string
+     */
+    private $newOrderId;
+
+    /**
+     * @var Amount
+     */
+    private $amount;
+
+    /**
+     * @var string
+     */
+    private $newOrderStatus;
+
+    /**
+     * @var string
+     */
+    private $invoiceId;
+
+    /**
+     * @var string
+     */
+    private $trackTraceCode;
+
+    /**
+     * @var string
+     */
+    private $carrier;
+    /**
+     * @var string
+     */
+    private $reason;
+
+    /**
+     * @var string
+     */
+    private $description;
     /**
      * @return array
      */
     public function getData(): array
     {
-        return $this->removeNullRecursive($this->data);
+        return $this->removeNullRecursive(
+            array_merge(
+                [
+                    'amount' => $this->amount->get() ?? null,
+                    'new_order_id' => $this->newOrderId ?: null,
+                    'new_order_status' => $this->newOrderStatus ?: 'completed',
+                    'invoice_id' => $this->invoiceId ?: null,
+                    'tracktrace_code' => $this->trackTraceCode ?: null,
+                    'carrier' =>$this->carrier ?: null,
+                    'reason' => $this->reason ?: null,
+                    'description' => $this->description ?: null,
+                ],
+                $this->data
+            )
+        );
+    }
+
+    /**
+     * @param Amount $amount
+     * @return CaptureRequest
+     */
+    public function addAmount(Amount $amount): CaptureRequest
+    {
+        $this->amount = $amount;
+        return $this;
+    }
+
+    /**
+     * @param string $newOrderId
+     * @return CaptureRequest
+     */
+    public function addNewOrderId(string $newOrderId): CaptureRequest
+    {
+        $this->newOrderId = $newOrderId;
+        return $this;
+    }
+
+    /**
+     * @param string $newOrderStatus
+     * @return CaptureRequest
+     */
+    public function addNewOrderStatus(string $newOrderStatus): CaptureRequest
+    {
+        $this->newOrderStatus = $newOrderStatus;
+        return $this;
+    }
+
+    /**
+     * @param string $invoiceId
+     * @return CaptureRequest
+     */
+    public function addInvoiceId(string $invoiceId): CaptureRequest
+    {
+        $this->invoiceId = $invoiceId;
+        return $this;
+    }
+
+    /**
+     * @param string $trackTraceCode
+     * @return CaptureRequest
+     */
+    public function addTrackTraceCode(string $trackTraceCode): CaptureRequest
+    {
+        $this->trackTraceCode = $trackTraceCode;
+        return $this;
+    }
+
+    /**
+     * @param string $carrier
+     * @return CaptureRequest
+     */
+    public function addCarrier(string $carrier): CaptureRequest
+    {
+        $this->carrier = $carrier;
+        return $this;
+    }
+
+    /**
+     * @param string $reason
+     * @return CaptureRequest
+     */
+    public function addReason(string $reason): CaptureRequest
+    {
+        $this->reason = $reason;
+        return $this;
+    }
+
+    /**
+     * @param string $description
+     * @return CaptureRequest
+     */
+    public function addDescription(string $description): CaptureRequest
+    {
+        $this->description = $description;
+        return $this;
     }
 }
diff --git a/tests/Unit/Api/Transactions/CaptureRequestTest.php b/tests/Unit/Api/Transactions/CaptureRequestTest.php
new file mode 100644
index 0000000..b56534e
--- /dev/null
+++ b/tests/Unit/Api/Transactions/CaptureRequestTest.php
@@ -0,0 +1,59 @@
+<?php declare(strict_types=1);
+/**
+ * Copyright © MultiSafepay, Inc. All rights reserved.
+ * See DISCLAIMER.md for disclaimer details.
+ */
+
+namespace MultiSafepay\Tests\Unit\Api\Transactions;
+
+use MultiSafepay\Api\Transactions\CaptureRequest;
+use MultiSafepay\ValueObject\Amount;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Class CaptureRequestTest
+ * @package MultiSafepay\Tests\Unit\Api\Transactions
+ */
+class CaptureRequestTest extends TestCase
+{
+    /**
+     * @covers \MultiSafepay\Api\Transactions\CaptureRequest::getData
+     */
+    public function testGetData()
+    {
+        $captureRequest = (new CaptureRequest())
+            ->addAmount(new Amount(100))
+            ->addNewOrderStatus('completed')
+            ->addInvoiceId('ORD-837243')
+            ->addReason('Verzonden');
+        $data = $captureRequest->getData();
+        $this->assertEquals(100, $data['amount']);
+        $this->assertEquals('completed', $data['new_order_status']);
+        $this->assertEquals('ORD-837243', $data['invoice_id']);
+        $this->assertEquals('Verzonden', $data['reason']);
+    }
+
+    /**
+     * @covers \MultiSafepay\Api\Transactions\CaptureRequest::addMoney
+     */
+    public function testAddAmount()
+    {
+        $captureRequest = new CaptureRequest();
+        $captureRequest->addAmount(new Amount(42));
+        $data = $captureRequest->getData();
+        $this->assertSame(42, $data['amount']);
+    }
+
+    /**
+     * `completed` is the only allowed `new_order_status` value for this request. So this value should be coerced.
+     *
+     * @covers \MultiSafepay\Api\Transactions\CaptureRequest::addMoney
+     */
+    public function testAlwaysCompleted()
+    {
+        $captureRequest = new CaptureRequest();
+        $captureRequest->addAmount(new Amount(42));
+        $data = $captureRequest->getData();
+        $this->assertSame('completed', $data['new_order_status']);
+    }
+}