diff --git a/src/Controller/Admin/PurchaseController.php b/src/Controller/Admin/PurchaseController.php
index 319807b..4cc041f 100644
--- a/src/Controller/Admin/PurchaseController.php
+++ b/src/Controller/Admin/PurchaseController.php
@@ -7,6 +7,7 @@
 use ConferenceTools\Attendance\Domain\Delegate\DietaryRequirements;
 use ConferenceTools\Attendance\Domain\Delegate\Event\DelegateRegistered;
 use ConferenceTools\Attendance\Domain\Delegate\ReadModel\Delegate;
+use ConferenceTools\Attendance\Domain\Discounting\ReadModel\DiscountCode;
 use ConferenceTools\Attendance\Domain\Payment\Command\ConfirmPayment;
 use ConferenceTools\Attendance\Domain\Payment\Command\SelectPaymentMethod;
 use ConferenceTools\Attendance\Domain\Payment\Event\PaymentRaised;
@@ -14,6 +15,7 @@
 use ConferenceTools\Attendance\Domain\Payment\ReadModel\Payment;
 use ConferenceTools\Attendance\Domain\Purchasing\Basket;
 use ConferenceTools\Attendance\Domain\Purchasing\Command\AllocateTicketToDelegate;
+use ConferenceTools\Attendance\Domain\Purchasing\Command\ApplyDiscount;
 use ConferenceTools\Attendance\Domain\Purchasing\Command\Checkout;
 use ConferenceTools\Attendance\Domain\Purchasing\Command\PurchaseItems;
 use ConferenceTools\Attendance\Domain\Purchasing\Event\TicketsReserved;
@@ -49,7 +51,14 @@ public function viewAction()
 
     public function createAction()
     {
-        $form = $this->form(NumberOfDelegates::class);
+        $discountOptions = [];
+        /** @var DiscountCode[] $discounts */
+        $discounts = $this->repository(DiscountCode::class)->matching(Criteria::create());
+        foreach ($discounts as $discount) {
+            $discountOptions[(string) $discount] = $discount->getDiscountType()->getName();
+        }
+
+        $form = $this->form(NumberOfDelegates::class, ['discountOptions' => $discountOptions]);
         $form->setAttribute('action', $this->url()->fromRoute('attendance-admin/purchase/delegates'));
         $form->setAttribute('method', 'GET');
 
@@ -126,6 +135,20 @@ public function delegatesAction()
                 $messages = $this->messageBus()->fire(new PurchaseItems($email, (int) $delegates, new Basket($selectedTickets, [])));
                 $purchaseId = $this->messageBus()->firstInstanceOf(TicketsReserved::class, ...$messages)->getId();
 
+                if (isset($queryData['discount_code']) && !empty($queryData['discount_code'])) {
+                    $code = $this->repository(DiscountCode::class)->get($queryData['discount_code']);
+                    if ($code instanceof DiscountCode) {
+                        $command = new ApplyDiscount(
+                            $purchaseId,
+                            $code->getDiscountType()->getId(),
+                            $queryData['discount_code'],
+                            $code->getDiscountType()->getDiscount()
+                        );
+
+                        $this->messageBus()->fire($command);
+                    }
+                }
+
                 for ($i = 0; $i < $delegates; $i++) {
                     $delegate = $data['delegate_' . $i];
 
diff --git a/src/Form/NumberOfDelegates.php b/src/Form/NumberOfDelegates.php
index 80bf810..2f869e1 100644
--- a/src/Form/NumberOfDelegates.php
+++ b/src/Form/NumberOfDelegates.php
@@ -6,6 +6,7 @@
 use Zend\Form\Element\DateTime;
 use Zend\Form\Element\MultiCheckbox;
 use Zend\Form\Element\Radio;
+use Zend\Form\Element\Select;
 use Zend\Form\Element\Submit;
 use Zend\Form\Element\Text;
 use Zend\Form\Form;
@@ -43,6 +44,21 @@ public function init()
             ],
         ]);
 
+        $discountOptions = $this->getOption('discountOptions');
+        if (!empty($discountOptions)) {
+            $this->add([
+                'type' => Select::class,
+                'name' => 'discount_code',
+                'options' => [
+                    'label' => 'Discount Code',
+                    'value_options' => array_merge(
+                        ['' => 'None'],
+                        $discountOptions
+                    )
+                ]
+            ]);
+        }
+
         $this->add(new Submit('continue', ['label' => 'Continue']));
     }
 
@@ -74,6 +90,10 @@ public function getInputFilterSpecification()
                     ['name' => NotEmpty::class],
                     ['name' => GreaterThan::class, 'options' => ['min' => 0]]
                 ]
+            ],
+            'discount_code' => [
+                'required' => false,
+                'allow_empty' => true,
             ]
         ];
     }