diff --git a/lib/Notification/NotificationHelper.php b/lib/Notification/NotificationHelper.php
index b2d0a9aa9..e4a6f21ee 100644
--- a/lib/Notification/NotificationHelper.php
+++ b/lib/Notification/NotificationHelper.php
@@ -94,6 +94,24 @@ public function sendCardDuedate($card) {
 		$this->cardMapper->markNotified($card);
 	}
 
+	public function sendCardAssigned($card, $userId) {
+		$boardId = $this->cardMapper->findBoardId($card->getId());
+		$board = $this->getBoard($boardId);
+
+		$notification = $this->notificationManager->createNotification();
+		$notification
+			->setApp('deck')
+			->setUser((string) $userId)
+			->setDateTime(new DateTime())
+			->setObject('card', $card->getId())
+				->setSubject('card-assigned', [
+					$card->getTitle(),
+					$board->getTitle(),
+					$this->currentUser
+				]);
+		$this->notificationManager->notify($notification);
+	}
+
 	/**
 	 * Send notifications that a board was shared with a user/group
 	 *
diff --git a/lib/Notification/Notifier.php b/lib/Notification/Notifier.php
index 1049a8201..fd54fe88b 100644
--- a/lib/Notification/Notifier.php
+++ b/lib/Notification/Notifier.php
@@ -73,6 +73,30 @@ public function prepare(INotification $notification, $languageCode) {
 		$params = $notification->getSubjectParameters();
 
 		switch ($notification->getSubject()) {
+			case 'card-assigned':
+				$cardId = $notification->getObjectId();
+				$boardId = $this->cardMapper->findBoardId($cardId);
+				$initiator = $this->userManager->get($params[2]);
+				if ($initiator !== null) {
+					$dn = $initiator->getDisplayName();
+				} else {
+					$dn = $params[2];
+				}
+				$notification->setParsedSubject(
+					(string) $l->t('The card "%s" on "%s" has been assigned to you by %s.', [$params[0], $params[1], $dn])
+				);
+				$notification->setRichSubject(
+					(string) $l->t('{user} has assigned the card "%s" on "%s" to you.', [$params[0], $params[1]]),
+					[
+						'user' => [
+							'type' => 'user',
+							'id' => $params[2],
+							'name' => $dn,
+						]
+					]
+				);
+				$notification->setLink($this->url->linkToRouteAbsolute('deck.page.index') . '#!/board/' . $boardId . '//card/' . $cardId . '');
+				break;
 			case 'card-overdue':
 				$cardId = $notification->getObjectId();
 				$boardId = $this->cardMapper->findBoardId($cardId);
diff --git a/lib/Service/CardService.php b/lib/Service/CardService.php
index 26fa3753c..a9b7ae7a2 100644
--- a/lib/Service/CardService.php
+++ b/lib/Service/CardService.php
@@ -29,6 +29,7 @@
 use OCA\Deck\Db\CardMapper;
 use OCA\Deck\Db\Acl;
 use OCA\Deck\Db\StackMapper;
+use OCA\Deck\Notification\NotificationHelper;
 use OCA\Deck\NotFoundException;
 use OCA\Deck\StatusException;
 
@@ -39,16 +40,20 @@ class CardService {
 	private $stackMapper;
 	private $permissionService;
 	private $boardService;
+	private $notificationHelper;
 	private $assignedUsersMapper;
 	private $attachmentService;
+	private $currentUser;
 
-	public function __construct(CardMapper $cardMapper, StackMapper $stackMapper, PermissionService $permissionService, BoardService $boardService, AssignedUsersMapper $assignedUsersMapper, AttachmentService $attachmentService) {
+	public function __construct(CardMapper $cardMapper, StackMapper $stackMapper, PermissionService $permissionService, BoardService $boardService, NotificationHelper $notificationHelper, AssignedUsersMapper $assignedUsersMapper, AttachmentService $attachmentService, $userId) {
 		$this->cardMapper = $cardMapper;
 		$this->stackMapper = $stackMapper;
 		$this->permissionService = $permissionService;
 		$this->boardService = $boardService;
+		$this->notificationHelper = $notificationHelper;
 		$this->assignedUsersMapper = $assignedUsersMapper;
 		$this->attachmentService = $attachmentService;
+		$this->currentUser = $userId;
 	}
 
 	public function find($cardId) {
@@ -202,6 +207,13 @@ public function assignUser($cardId, $userId) {
 				return false;
 			}
 		}
+
+		if ($userId !== $this->currentUser) {
+			/* Notifyuser about the card assignment */
+			$card = $this->cardMapper->find($cardId);
+			$this->notificationHelper->sendCardAssigned($card, $userId);
+		}
+
 		$assignment = new AssignedUsers();
 		$assignment->setCardId($cardId);
 		$assignment->setParticipant($userId);
diff --git a/tests/unit/Notification/NotificationHelperTest.php b/tests/unit/Notification/NotificationHelperTest.php
index c6625777a..c9c11bc70 100644
--- a/tests/unit/Notification/NotificationHelperTest.php
+++ b/tests/unit/Notification/NotificationHelperTest.php
@@ -184,6 +184,49 @@ public function testSendCardDuedate() {
 		$this->notificationHelper->sendCardDuedate($card);
 	}
 
+	public function testSendCardAssignedUser() {
+		$board = new Board();
+		$board->setId(123);
+		$board->setTitle('MyBoardTitle');
+		$this->boardMapper->expects($this->once())
+			->method('find')
+			->with(123)
+			->willReturn($board);
+
+		$acl = new Acl();
+		$acl->setParticipant('admin');
+		$acl->setType(Acl::PERMISSION_TYPE_USER);
+
+		$card = new Card();
+		$card->setTitle('MyCardTitle');
+		$card->setOwner('admin');
+		$card->setStackId(123);
+		$card->setOrder(999);
+		$card->setType('text');
+		$card->setId(1337);
+		$card->setAssignedUsers(['userA']);
+		$this->cardMapper->expects($this->once())
+			->method('findBoardId')
+			->with(1337)
+			->willReturn(123);
+
+		$notification = $this->createMock(INotification::class);
+		$notification->expects($this->once())->method('setApp')->with('deck')->willReturn($notification);
+		$notification->expects($this->once())->method('setUser')->with('userA')->willReturn($notification);
+		$notification->expects($this->once())->method('setObject')->with('card', 1337)->willReturn($notification);
+		$notification->expects($this->once())->method('setSubject')->with('card-assigned', ['MyCardTitle', 'MyBoardTitle', 'admin'])->willReturn($notification);
+		$notification->expects($this->once())->method('setDateTime')->willReturn($notification);
+
+		$this->notificationManager->expects($this->at(0))
+			->method('createNotification')
+			->willReturn($notification);
+		$this->notificationManager->expects($this->at(1))
+			->method('notify')
+			->with($notification);
+
+		$this->notificationHelper->sendCardAssigned($card, 'userA');
+	}
+
 	public function testSendBoardSharedUser() {
 		$board = new Board();
 		$board->setId(123);
diff --git a/tests/unit/Notification/NotifierTest.php b/tests/unit/Notification/NotifierTest.php
index 406196221..3d8992cdd 100644
--- a/tests/unit/Notification/NotifierTest.php
+++ b/tests/unit/Notification/NotifierTest.php
@@ -129,11 +129,82 @@ public function testPrepareCardOverdue() {
 
 	}
 
+	public function dataPrepareCardAssigned() {
+		return [
+			[true], [false]
+		];
+	}
+
+	/** @dataProvider dataPrepareCardAssigned */
+	public function testPrepareCardAssigned($withUserFound = true) {
+		/** @var INotification $notification */
+		$notification = $this->createMock(INotification::class);
+		$notification->expects($this->once())
+			->method('getApp')
+			->willReturn('deck');
+
+		$notification->expects($this->once())
+			->method('getSubjectParameters')
+			->willReturn(['Card title','Board title', 'otheruser']);
+
+		$notification->expects($this->once())
+			->method('getSubject')
+			->willReturn('card-assigned');
+		$notification->expects($this->once())
+			->method('getObjectId')
+			->willReturn('123');
+		if ($withUserFound) {
+			$user = $this->createMock(IUser::class);
+			$user->expects($this->any())
+				->method('getDisplayName')
+				->willReturn('Other User');
+			$dn = 'Other User';
+		} else {
+			$user = null;
+			$dn = 'otheruser';
+		}
+		$this->userManager->expects($this->once())
+			->method('get')
+			->with('otheruser')
+			->willReturn($user);
+
+		$expectedMessage = 'The card "Card title" on "Board title" has been assigned to you by '.$dn.'.';
+		$notification->expects($this->once())
+			->method('setParsedSubject')
+			->with($expectedMessage);
+		$notification->expects($this->once())
+			->method('setRichSubject')
+			->with('{user} has assigned the card "Card title" on "Board title" to you.', [
+				'user' => [
+					'type' => 'user',
+					'id' => 'otheruser',
+					'name' => $dn,
+				]
+			]);
+
+		$this->url->expects($this->once())
+			->method('imagePath')
+			->with('deck', 'deck-dark.svg')
+			->willReturn('deck-dark.svg');
+		$this->url->expects($this->once())
+			->method('getAbsoluteURL')
+			->with('deck-dark.svg')
+			->willReturn('/absolute/deck-dark.svg');
+		$notification->expects($this->once())
+			->method('setIcon')
+			->with('/absolute/deck-dark.svg');
+
+		$actualNotification = $this->notifier->prepare($notification, 'en_US');
+
+		$this->assertEquals($notification, $actualNotification);
+	}
+
 	public function dataPrepareBoardShared() {
 		return [
 			[true], [false]
 		];
 	}
+
 	/** @dataProvider dataPrepareBoardShared */
 	public function testPrepareBoardShared($withUserFound = true) {
 		/** @var INotification $notification */
diff --git a/tests/unit/Service/CardServiceTest.php b/tests/unit/Service/CardServiceTest.php
index 0822bab3d..0f850c006 100644
--- a/tests/unit/Service/CardServiceTest.php
+++ b/tests/unit/Service/CardServiceTest.php
@@ -30,6 +30,7 @@
 use OCA\Deck\Db\CardMapper;
 use OCA\Deck\Db\StackMapper;
 use OCA\Deck\NotFoundException;
+use OCA\Deck\Notification\NotificationHelper;
 use OCA\Deck\StatusException;
 use Test\TestCase;
 
@@ -43,6 +44,8 @@ class CardServiceTest extends TestCase {
     private $stackMapper;
     /** @var PermissionService|\PHPUnit\Framework\MockObject\MockObject */
     private $permissionService;
+    /** @var NotificationHelper */
+    private $notificationHelper;
     /** @var AssignedUsersMapper|\PHPUnit\Framework\MockObject\MockObject */
     private $assignedUsersMapper;
 	/** @var BoardService|\PHPUnit\Framework\MockObject\MockObject */
@@ -54,9 +57,10 @@ public function setUp() {
         $this->stackMapper = $this->createMock(StackMapper::class);
         $this->permissionService = $this->createMock(PermissionService::class);
         $this->boardService = $this->createMock(BoardService::class);
+        $this->notificationHelper = $this->createMock(NotificationHelper::class);
         $this->assignedUsersMapper = $this->createMock(AssignedUsersMapper::class);
 		$this->attachmentService = $this->createMock(AttachmentService::class);
-        $this->cardService = new CardService($this->cardMapper, $this->stackMapper, $this->permissionService, $this->boardService, $this->assignedUsersMapper, $this->attachmentService);
+        $this->cardService = new CardService($this->cardMapper, $this->stackMapper, $this->permissionService, $this->boardService, $this->notificationHelper, $this->assignedUsersMapper, $this->attachmentService, 'userXY');
     }
 
     public function testFind() {