diff --git a/src/Gateway.php b/src/Gateway.php
index 7844c03..2900df1 100644
--- a/src/Gateway.php
+++ b/src/Gateway.php
@@ -126,6 +126,11 @@ public function setIntCurrency(string $value)
 		return $this->setParameter('IntCurrency', $value);
 	}
 
+	public function setPaymentPlan(string $value)
+	{
+		return $this->setParameter('PaymentPlan', $value);
+	}
+
 	public function purchase(array $parameters = array())
 	{
 		return $this->createRequest(PurchaseRequest::class, $parameters);
diff --git a/src/Message/AbstractRequest.php b/src/Message/AbstractRequest.php
index 5699481..cfae3fe 100644
--- a/src/Message/AbstractRequest.php
+++ b/src/Message/AbstractRequest.php
@@ -126,6 +126,10 @@ public function setIntCurrency(string $value)
 		return $this->setParameter('IntCurrency', $value);
 	}
 
+	public function getPaymentPlan()
+	{
+		return $this->getParameter('PaymentPlan');
+	}
 
     public function sendData($data)
     {
diff --git a/src/Message/PurchaseRequest.php b/src/Message/PurchaseRequest.php
index 2c07a58..25a3008 100644
--- a/src/Message/PurchaseRequest.php
+++ b/src/Message/PurchaseRequest.php
@@ -18,6 +18,7 @@ public function getData()
 		$data['IntAmount'] = $this->getIntAmount();
 		$data['IntCurrency'] = $this->getIntCurrency();
 		$data['Lang'] = $this->getLang();
+		$data['PaymentPlan'] = $this->getPaymentPlan();
 		return $data;
 	}