diff --git a/config/packages/gift_card.yaml b/config/packages/gift_card.yaml
index a3cd104..ad1755c 100644
--- a/config/packages/gift_card.yaml
+++ b/config/packages/gift_card.yaml
@@ -9,6 +9,14 @@ sylius_fixtures:
                     options:
                         amount: 5
 
+sylius_ui:
+    events:
+        sylius.shop.cart.coupon:
+            blocks:
+                gift_card_form:
+                    template: 'Shop/Cart/Summary/giftCardCode.html.twig'
+                    priority: 5
+
 services:
     App\GiftCard\:
         resource: '../../src/GiftCard/*'
diff --git a/src/Entity/Order/Order.php b/src/Entity/Order/Order.php
index 4d0dfff..64d0317 100644
--- a/src/Entity/Order/Order.php
+++ b/src/Entity/Order/Order.php
@@ -4,6 +4,7 @@
 
 namespace App\Entity\Order;
 
+use App\GiftCard\OrderProcessor\GiftCardOrderProcessor;
 use App\Packaging\OrderProcessor\PackagingOrderProcessor;
 use Doctrine\ORM\Mapping as ORM;
 use Sylius\Component\Core\Model\Order as BaseOrder;
@@ -12,8 +13,26 @@
 #[ORM\Table(name: 'sylius_order')]
 class Order extends BaseOrder
 {
+    #[ORM\Column(type: 'string', name: 'gift_card_code', nullable: true)]
+    private ?string $giftCardCode = null;
+
     public function getPackagingTotal(): int
     {
         return $this->getAdjustmentsTotalRecursively(PackagingOrderProcessor::PACKAGING_ADJUSTMENT_TYPE);
     }
+
+    public function getGiftCardTotal(): int
+    {
+        return $this->getAdjustmentsTotalRecursively(GiftCardOrderProcessor::GIFT_CARD_ADJUSTMENT);
+    }
+
+    public function getGiftCardCode(): ?string
+    {
+        return $this->giftCardCode;
+    }
+
+    public function setGiftCardCode(?string $giftCardCode): void
+    {
+        $this->giftCardCode = $giftCardCode;
+    }
 }
diff --git a/src/GiftCard/Form/Extension/CartTypeExtension.php b/src/GiftCard/Form/Extension/CartTypeExtension.php
new file mode 100644
index 0000000..3e1e184
--- /dev/null
+++ b/src/GiftCard/Form/Extension/CartTypeExtension.php
@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\GiftCard\Form\Extension;
+
+use Sylius\Bundle\OrderBundle\Form\Type\CartType;
+use Symfony\Component\Form\AbstractTypeExtension;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+use Symfony\Component\Form\FormBuilderInterface;
+
+final class CartTypeExtension extends AbstractTypeExtension
+{
+    public function buildForm(FormBuilderInterface $builder, array $options): void
+    {
+        $builder->add('giftCardCode', TextType::class, [
+            'label' => 'Gift card',
+            'required' => false,
+            'attr' => [
+                'placeholder' => 'Gift card code',
+            ],
+        ]);
+    }
+
+    public static function getExtendedTypes(): iterable
+    {
+        yield CartType::class;
+    }
+}
diff --git a/src/GiftCard/OrderProcessor/GiftCardOrderProcessor.php b/src/GiftCard/OrderProcessor/GiftCardOrderProcessor.php
new file mode 100644
index 0000000..e7b1500
--- /dev/null
+++ b/src/GiftCard/OrderProcessor/GiftCardOrderProcessor.php
@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\GiftCard\OrderProcessor;
+
+use App\Entity\Order\Order;
+use App\GiftCard\Entity\GiftCard;
+use Sylius\Component\Order\Factory\AdjustmentFactoryInterface;
+use Sylius\Component\Order\Model\OrderInterface;
+use Sylius\Component\Order\Processor\OrderProcessorInterface;
+use Sylius\Resource\Doctrine\Persistence\RepositoryInterface;
+
+final class GiftCardOrderProcessor implements OrderProcessorInterface
+{
+    public const GIFT_CARD_ADJUSTMENT = 'gift_card';
+
+    public function __construct(
+        private readonly RepositoryInterface $giftCardRepository,
+        private readonly AdjustmentFactoryInterface $adjustmentFactory
+    ) {
+    }
+
+    /** @param Order $order */
+    public function process(OrderInterface $order): void
+    {
+        $order->removeAdjustments(self::GIFT_CARD_ADJUSTMENT);
+        $giftCardCode = $order->getGiftCardCode();
+
+        if ($giftCardCode === null) {
+            return;
+        }
+
+        /** @var GiftCard|null $giftCard */
+        $giftCard = $this->giftCardRepository->findOneBy(['code' => $giftCardCode]);
+        if ($giftCard === null) {
+            return;
+        }
+
+        $giftCardAdjustment = $this->adjustmentFactory->createWithData(
+            self::GIFT_CARD_ADJUSTMENT,
+            'Gift card',
+            min($giftCard->getAmount(), $order->getTotal()) * -1,
+        );
+        $order->addAdjustment($giftCardAdjustment);
+    }
+}
diff --git a/src/Migrations/Version20240514100514.php b/src/Migrations/Version20240514100514.php
new file mode 100644
index 0000000..a859e55
--- /dev/null
+++ b/src/Migrations/Version20240514100514.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Migrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20240514100514 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE sylius_order ADD gift_card_code VARCHAR(255) DEFAULT NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE sylius_order DROP gift_card_code');
+    }
+}
diff --git a/templates/Shop/Cart/Summary/giftCardCode.html.twig b/templates/Shop/Cart/Summary/giftCardCode.html.twig
new file mode 100644
index 0000000..7135ec2
--- /dev/null
+++ b/templates/Shop/Cart/Summary/giftCardCode.html.twig
@@ -0,0 +1,8 @@
+<div id="sylius-gift-card" style="margin-top: 1rem;">
+    <div class="ui coupon action input">
+        {{ form_widget(form.giftCardCode, {'attr': {'form': main_form }}) }}
+        <button type="submit" id="sylius-save" class="ui purple icon labeled button" form="{{ main_form }}"><i class="gift icon"></i> Add gift card</button>
+    </div>
+    <br>
+    {{ form_errors(form.giftCardCode) }}
+</div>
diff --git a/templates/bundles/SyliusShopBundle/Cart/Summary/_totals.html.twig b/templates/bundles/SyliusShopBundle/Cart/Summary/_totals.html.twig
index 0f02442..58d00f0 100644
--- a/templates/bundles/SyliusShopBundle/Cart/Summary/_totals.html.twig
+++ b/templates/bundles/SyliusShopBundle/Cart/Summary/_totals.html.twig
@@ -55,6 +55,12 @@
             <td class="right aligned">{{ money.convertAndFormat(cart.packagingTotal) }}</td>
         </tr>
         {% endif %}
+        {% if cart.giftCardTotal < 0 %}
+        <tr>
+            <td>Gift cards</td>
+            <td class="right aligned">{{ money.convertAndFormat(cart.giftCardTotal) }}</td>
+        </tr>
+        {% endif %}
         <tr class="ui large header">
             <td>{{ 'sylius.ui.order_total'|trans }}:</td>
             <td id="sylius-cart-grand-total" {{ sylius_test_html_attribute('cart-grand-total') }} class="right aligned">{{ money.convertAndFormat(cart.total) }}</td>