diff -u b/core/lib/Drupal/Core/Entity/Field/FieldDefinition.php b/core/lib/Drupal/Core/Entity/Field/FieldDefinition.php
--- b/core/lib/Drupal/Core/Entity/Field/FieldDefinition.php
+++ b/core/lib/Drupal/Core/Entity/Field/FieldDefinition.php
@@ -8,6 +8,7 @@
 namespace Drupal\Core\Entity\Field;
 
 use Drupal\Component\Utility\NestedArray;
+use Drupal\Core\Entity\EntityInterface;
 
 /**
  * @todo Document.
@@ -109,2 +110,9 @@
 
+  /**
+   * {@inheritdoc}
+   */
+  public function getFieldDefaultValue(EntityInterface $entity) {
+    return $this->getFieldSetting('default_value');
+  }
+
 }