diff --git a/core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php b/core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php
index 1172406e34..cc1728bad7 100644
--- a/core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php
+++ b/core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php
@@ -797,6 +797,13 @@ public function save(EntityInterface $entity) {
 
       // Ignore replica server temporarily.
       db_ignore_replica();
+
+      // Commit the transaction and fire an after transactional save hook in a
+      // new transaction.
+      unset($transaction);
+      $transaction = $this->database->startTransaction();
+      $this->invokeHook('post_transaction', $entity);
+
       return $return;
     }
     catch (\Exception $e) {
diff --git a/core/lib/Drupal/Core/Entity/entity.api.php b/core/lib/Drupal/Core/Entity/entity.api.php
index 5387c7ef7e..fb96633799 100644
--- a/core/lib/Drupal/Core/Entity/entity.api.php
+++ b/core/lib/Drupal/Core/Entity/entity.api.php
@@ -1024,6 +1024,34 @@ function hook_ENTITY_TYPE_update(Drupal\Core\Entity\EntityInterface $entity) {
 }
 
 /**
+ * Respond to updates to an entity.
+ *
+ * This hook runs once the entity storage has been updated and the database
+ * transaction has been committed.
+ *
+ * @param \Drupal\Core\Entity\EntityInterface $entity
+ *   The entity object.
+ *
+ * @ingroup entity_crud
+ * @see hook_ENTITY_TYPE_post_transaction()
+ */
+function hook_entity_post_transaction(Drupal\Core\Entity\EntityInterface $entity) {}
+
+/**
+ * Respond to updates to an entity of a particular type.
+ *
+ * This hook runs once the entity storage has been updated and the database
+ * transaction has been committed.
+ *
+ * @param \Drupal\Core\Entity\EntityInterface $entity
+ *   The entity object.
+ *
+ * @ingroup entity_crud
+ * @see hook_entity_post_transaction()
+ */
+function hook_ENTITY_TYPE_post_transaction(Drupal\Core\Entity\EntityInterface $entity) {}
+
+/**
  * Acts when creating a new entity translation.
  *
  * This hook runs after a new entity translation object has just been