diff --git a/src/akonadi/akonaditaskrepository.h b/src/akonadi/akonaditaskrepository.h
--- a/src/akonadi/akonaditaskrepository.h
+++ b/src/akonadi/akonaditaskrepository.h
@@ -51,7 +51,6 @@
     virtual KJob *create(Domain::Task::Ptr task) Q_DECL_OVERRIDE;
     virtual KJob *createInProject(Domain::Task::Ptr task, Domain::Project::Ptr project) Q_DECL_OVERRIDE;
     virtual KJob *createInContext(Domain::Task::Ptr task, Domain::Context::Ptr context) Q_DECL_OVERRIDE;
-    virtual KJob *createInTag(Domain::Task::Ptr task, Domain::Tag::Ptr tag) Q_DECL_OVERRIDE;
 
     virtual KJob *update(Domain::Task::Ptr task) Q_DECL_OVERRIDE;
     virtual KJob *remove(Domain::Task::Ptr task) Q_DECL_OVERRIDE;
diff --git a/src/akonadi/akonaditaskrepository.cpp b/src/akonadi/akonaditaskrepository.cpp
--- a/src/akonadi/akonaditaskrepository.cpp
+++ b/src/akonadi/akonaditaskrepository.cpp
@@ -119,18 +119,6 @@
     return createItem(item);
 }
 
-KJob *TaskRepository::createInTag(Domain::Task::Ptr task, Domain::Tag::Ptr tag)
-{
-    Item item = m_serializer->createItemFromTask(task);
-    Q_ASSERT(!item.isValid());
-
-    Tag akonadiTag = m_serializer->createAkonadiTagFromTag(tag);
-    Q_ASSERT(akonadiTag .isValid());
-    item.setTag(akonadiTag);
-
-    return createItem(item);
-}
-
 KJob *TaskRepository::update(Domain::Task::Ptr task)
 {
     auto item = m_serializer->createItemFromTask(task);
diff --git a/src/domain/taskrepository.h b/src/domain/taskrepository.h
--- a/src/domain/taskrepository.h
+++ b/src/domain/taskrepository.h
@@ -27,7 +27,6 @@
 #include "context.h"
 #include "datasource.h"
 #include "project.h"
-#include "tag.h"
 #include "task.h"
 
 class KJob;
@@ -48,7 +47,6 @@
     virtual KJob *create(Task::Ptr task) = 0;
     virtual KJob *createInProject(Task::Ptr task, Project::Ptr project) = 0;
     virtual KJob *createInContext(Task::Ptr task, Context::Ptr context) = 0;
-    virtual KJob *createInTag(Task::Ptr task, Tag::Ptr tag) = 0;
 
     virtual KJob *update(Task::Ptr task) = 0;
     virtual KJob *remove(Task::Ptr task) = 0;
diff --git a/tests/units/akonadi/akonaditaskrepositorytest.cpp b/tests/units/akonadi/akonaditaskrepositorytest.cpp
--- a/tests/units/akonadi/akonaditaskrepositorytest.cpp
+++ b/tests/units/akonadi/akonaditaskrepositorytest.cpp
@@ -316,55 +316,6 @@
         QVERIFY(storageMock(&Akonadi::StorageInterface::createItem).when(taskItem, defaultCollection).exactly(1));
     }
 
-    void shouldCreateNewItemsInTag()
-    {
-        // GIVEN
-        // a tag
-        Akonadi::Tag akonadiTag;
-        akonadiTag.setName("akonadiTag42");
-        akonadiTag.setId(42);
-
-        // the domain Tag related to the Akonadi Tag
-        auto tag = Domain::Tag::Ptr::create();
-
-        // a default collection
-        Akonadi::Collection defaultCollection(42);
-
-        // A task and its corresponding item not existing in storage yet
-        Akonadi::Item taskItem;
-        auto task = Domain::Task::Ptr::create();
-
-        // A mock create job
-        auto itemCreateJob = new FakeJob(this);
-
-        // serializer mock returning the item for the task
-        Utils::MockObject<Akonadi::SerializerInterface> serializerMock;
-
-        serializerMock(&Akonadi::SerializerInterface::createAkonadiTagFromTag).when(tag).thenReturn(akonadiTag);
-        serializerMock(&Akonadi::SerializerInterface::createItemFromTask).when(task).thenReturn(taskItem);
-
-        // Storage mock returning the create job
-        Utils::MockObject<Akonadi::StorageInterface> storageMock;
-
-        storageMock(&Akonadi::StorageInterface::defaultTaskCollection).when().thenReturn(defaultCollection);
-        storageMock(&Akonadi::StorageInterface::createItem).when(taskItem, defaultCollection).thenReturn(itemCreateJob);
-
-        // WHEN
-        QScopedPointer<Akonadi::TaskRepository> repository(new Akonadi::TaskRepository(storageMock.getInstance(),
-                                                                                       serializerMock.getInstance(),
-                                                                                       Akonadi::MessagingInterface::Ptr()));
-
-        repository->createInTag(task, tag)->exec();
-
-        // THEN
-
-        QVERIFY(serializerMock(&Akonadi::SerializerInterface::createItemFromTask).when(task).exactly(1));
-        QVERIFY(serializerMock(&Akonadi::SerializerInterface::createAkonadiTagFromTag).when(tag).exactly(1));
-
-        QVERIFY(storageMock(&Akonadi::StorageInterface::defaultTaskCollection).when().exactly(1));
-        QVERIFY(storageMock(&Akonadi::StorageInterface::createItem).when(taskItem, defaultCollection).exactly(1));
-    }
-
     void shouldUpdateExistingItems()
     {
         // GIVEN