diff --git a/components/com_tags/src/Service/Router.php b/components/com_tags/src/Service/Router.php
index 45af977b8af2c..24e3f7405df47 100644
--- a/components/com_tags/src/Service/Router.php
+++ b/components/com_tags/src/Service/Router.php
@@ -16,10 +16,8 @@
 use Joomla\CMS\Component\Router\RouterBase;
 use Joomla\CMS\Language\Multilanguage;
 use Joomla\CMS\Menu\AbstractMenu;
-use Joomla\CMS\Plugin\PluginHelper;
 use Joomla\Database\DatabaseInterface;
 use Joomla\Database\ParameterType;
-use Joomla\Registry\Registry;
 use Joomla\Utilities\ArrayHelper;
 
 // phpcs:disable PSR1.Files.SideEffects
@@ -50,16 +48,6 @@ class Router extends RouterBase
      */
     protected $lookup = [];
 
-    /**
-     * System - SEF Plugin parameters
-     *
-     * @var   Registry
-     * @since 5.2.0
-     * @deprecated  5.2.0 will be removed in 7.0
-     *              without replacement
-     */
-    private $sefparams;
-
     /**
      * Tags Component router constructor
      *
@@ -76,18 +64,9 @@ public function __construct(SiteApplication $app, AbstractMenu $menu, ?CategoryF
 
         parent::__construct($app, $menu);
 
-        $sefPlugin       = PluginHelper::getPlugin('system', 'sef');
-
-        if ($sefPlugin) {
-            $this->sefparams = new Registry($sefPlugin->params);
-        } else {
-            $this->sefparams = new Registry();
-        }
-
         $this->buildLookup();
     }
 
-
     /**
      * Preprocess com_tags URLs
      *
@@ -187,18 +166,6 @@ public function preprocess($query)
             }
         }
 
-        // TODO: Remove this whole block in 7.0 as it is a bug
-        if (!$this->sefparams->get('strictrouting', 0)) {
-            // If not found, return language specific home link
-            if (!isset($query['Itemid'])) {
-                $default = $this->menu->getDefault($lang);
-
-                if (!empty($default->id)) {
-                    $query['Itemid'] = $default->id;
-                }
-            }
-        }
-
         return $query;
     }
 
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 0af8782d81f55..aee8ea6baaa63 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -6957,16 +6957,6 @@ parameters:
 			count: 1
 			path: components/com_tags/src/Model/TagModel.php
 
-		-
-			message: '''
-				#^Access to deprecated property \$sefparams of class Joomla\\Component\\Tags\\Site\\Service\\Router\:
-				5\.2\.0 will be removed in 7\.0
-				             without replacement$#
-			'''
-			identifier: property.deprecated
-			count: 3
-			path: components/com_tags/src/Service/Router.php
-
 		-
 			message: '''
 				#^Call to deprecated method get\(\) of class Joomla\\CMS\\MVC\\View\\AbstractView\: