diff --git a/core/modules/text/src/Plugin/Field/FieldType/TextItemBase.php b/core/modules/text/src/Plugin/Field/FieldType/TextItemBase.php
index 3fdd385d1e..55ad60163d 100644
--- a/core/modules/text/src/Plugin/Field/FieldType/TextItemBase.php
+++ b/core/modules/text/src/Plugin/Field/FieldType/TextItemBase.php
@@ -21,8 +21,11 @@ public static function propertyDefinitions(FieldStorageDefinitionInterface $fiel
       ->setLabel(t('Text'))
       ->setRequired(TRUE);
 
-    $properties['format'] = DataDefinition::create('filter_format')
-      ->setLabel(t('Text format'));
+    $moduleHandler = \Drupal::service('module_handler');
+    if ($moduleHandler->moduleExists('filter')) {
+      $properties['format'] = DataDefinition::create('filter_format')
+        ->setLabel(t('Text format'));
+    }
 
     $properties['processed'] = DataDefinition::create('string')
       ->setLabel(t('Processed text'))
@@ -49,7 +52,12 @@ public function applyDefaultValue($notify = TRUE) {
    */
   public function isEmpty() {
     $value = $this->get('value')->getValue();
-    return $value === NULL || $value === '';
+    $format = NULL;
+    $properties = $this->getProperties();
+    if (isset($properties['format'])) {
+      $format = $this->get('format')->getValue();
+    }
+    return ($value === NULL || $value === '') && ($format === NULL || $format === '');
   }
 
   /**
diff --git a/core/modules/text/tests/src/Functional/TextFieldTest.php b/core/modules/text/tests/src/Functional/TextFieldTest.php
index 00d687fe61..33694a12d9 100644
--- a/core/modules/text/tests/src/Functional/TextFieldTest.php
+++ b/core/modules/text/tests/src/Functional/TextFieldTest.php
@@ -21,6 +21,13 @@ class TextFieldTest extends StringFieldTest {
     getTestFiles as drupalGetTestFiles;
   }
 
+  /**
+   * Modules to enable for this test.
+   *
+   * @var array
+   */
+  protected static $modules = ['field_ui', 'filter', 'filter_test', 'node'];
+
   /**
    * A user with relevant administrative privileges.
    *
@@ -36,7 +43,9 @@ class TextFieldTest extends StringFieldTest {
   protected function setUp(): void {
     parent::setUp();
 
-    $this->adminUser = $this->drupalCreateUser(['administer filters']);
+    $this->drupalCreateContentType(['type' => 'page', 'name' => 'Basic page']);
+    $admin_user = $this->drupalCreateUser([], 'AdminTest', TRUE);
+    $this->drupalLogin($admin_user);
   }
 
   // Test fields.
@@ -138,6 +147,50 @@ public function testRequiredLongTextWithFileUpload() {
     $this->assertSession()->pageTextContains('Long text');
   }
 
+  /**
+   * Test default value.
+   */
+  public function testDefaultValue() {
+    $field_name = 'text_long';
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'node',
+      'type' => 'text_with_summary',
+    ]);
+    $field_storage->save();
+
+    $label = $this->randomMachineName() . '_label';
+    $field = FieldConfig::create([
+      'field_storage' => $field_storage,
+      'bundle' => 'page',
+      'label' => $label,
+      'required' => TRUE,
+    ]);
+    $field->save();
+
+    /** @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface $display_repository */
+    $display_repository = \Drupal::service('entity_display.repository');
+
+    $display_repository->getFormDisplay('node', 'page')
+      ->setComponent($field_name)
+      ->save();
+
+    $admin_path = 'admin/structure/types/manage/page/fields/' . $field->id();
+    $element_format = "default_value_input[{$field_name}][0][format]";
+    $edit = [
+      $element_format => 'full_html',
+    ];
+    $this->drupalGet($admin_path);
+    $this->assertSession()->statusCodeEquals(200);
+    $this->submitForm($edit, 'Save settings');
+
+    $this->assertSession()->pageTextContains("Saved $label configuration");
+
+    // Check that the default value shows up in the form
+    $this->drupalGet($admin_path);
+    $this->assertSession()->fieldValueEquals($element_format, 'full_html');
+  }
+
   /**
    * Tests widgets.
    */