diff --git a/src/AdapterManager.php b/src/AdapterManager.php
index 6c5ef45..29ac00d 100644
--- a/src/AdapterManager.php
+++ b/src/AdapterManager.php
@@ -7,6 +7,7 @@
 use Cosmastech\StatsDClientAdapter\Adapters\Datadog\DatadogStatsDClientAdapter;
 use Cosmastech\StatsDClientAdapter\Adapters\InMemory\InMemoryClientAdapter;
 use Cosmastech\StatsDClientAdapter\Adapters\League\LeagueStatsDClientAdapter;
+use Cosmastech\StatsDClientAdapter\Adapters\StatsDClientAdapter;
 use Cosmastech\StatsDClientAdapter\Clients\Datadog\DatadogLoggingClient;
 use Cosmastech\StatsDClientAdapter\Utility\SampleRateDecider\SampleRateSendDecider;
 use DataDog\DogStatsd;
@@ -16,6 +17,9 @@
 use League\StatsD\Exception\ConfigurationException;
 
 /**
+ * @property array<int, StatsDClientAdapter> $instances
+ * @method StatsDClientAdapter instance($name = null)
+ *
  * @mixin  \Cosmastech\StatsDClientAdapter\Adapters\StatsDClientAdapter
  */
 class AdapterManager extends MultipleInstanceManager
@@ -34,7 +38,7 @@ class AdapterManager extends MultipleInstanceManager
     /**
      * @var array<mixed, mixed>
      */
-    protected array $defaultTags = [];
+    protected array $defaultTags;
 
     /**
      * @inheritDoc
@@ -71,18 +75,32 @@ public function getInstanceConfig($name)
     }
 
     /**
-     * @return array<mixed, mixed>
+     * @param  array<mixed, mixed>  $tags
+     * @return void
      */
-    protected function getDefaultTagsFromConfig(): array
+    public function setDefaultTags(array $tags): void
     {
-        return $this->config->get('statsd-adapter.default_tags', []);
+        $this->defaultTags = $tags;
+
+        foreach ($this->instances as $instance) {
+            $instance->setDefaultTags($this->defaultTags);
+        }
     }
 
-    public function setDefaultTags(array $tags): void
+    /**
+     * @return array<mixed, mixed>
+     */
+    public function getDefaultTags(): array
     {
-        $this->defaultTags = $tags;
+        return $this->defaultTags ?? $this->getDefaultTagsFromConfig();
+    }
 
-        
+    /**
+     * @return array<mixed, mixed>
+     */
+    protected function getDefaultTagsFromConfig(): array
+    {
+        return $this->config->get('statsd-adapter.default_tags', []);
     }
 
     /**
@@ -93,7 +111,7 @@ protected function createMemoryAdapter(array $config): InMemoryClientAdapter
     {
         $wrapperClock = new WrapperClock(FactoryImmutable::getDefaultInstance());
 
-        return new InMemoryClientAdapter($wrapperClock, $this->getDefaultTagsFromConfig());
+        return new InMemoryClientAdapter($wrapperClock, $this->getDefaultTags());
     }
 
     /**
@@ -119,7 +137,7 @@ protected function createLogDatadogAdapter(array $config): DatadogStatsDClientAd
 
         return new DatadogStatsDClientAdapter(
             new DatadogLoggingClient($this->app->make('log'), $logLevel, $config),
-            $this->getDefaultTagsFromConfig()
+            $this->getDefaultTags()
         );
     }
 
@@ -129,7 +147,7 @@ protected function createLogDatadogAdapter(array $config): DatadogStatsDClientAd
      */
     protected function createDatadogAdapter(array $config): DatadogStatsDClientAdapter
     {
-        return new DatadogStatsDClientAdapter(new DogStatsd($config), $this->getDefaultTagsFromConfig());
+        return new DatadogStatsDClientAdapter(new DogStatsd($config), $this->getDefaultTags());
     }
 
     /**
@@ -146,7 +164,7 @@ protected function createLeagueAdapter(array $config): LeagueStatsDClientAdapter
         return new LeagueStatsDClientAdapter(
             $leagueClient,
             new SampleRateSendDecider(),
-            $this->getDefaultTagsFromConfig()
+            $this->getDefaultTags()
         );
     }
 }
diff --git a/tests/AdapterManagerTest.php b/tests/AdapterManagerTest.php
index cfa7846..232c38a 100644
--- a/tests/AdapterManagerTest.php
+++ b/tests/AdapterManagerTest.php
@@ -112,4 +112,35 @@ public function getDefaultTags_withDefaultTagsSet_returnsDefaultTagsArray(): voi
         // Then
         self::assertSame(["abc" => true], $adapterManager->getDefaultTags());
     }
+
+    #[Test]
+    public function setDefaultTags_passesTagsToExistingInstance(): void
+    {
+        // Given
+        $adapterManager = $this->createAdapterManager();
+
+        /** @var InMemoryClientAdapter $inMemoryClientAdapter */
+        $inMemoryClientAdapter = $adapterManager->instance("memory");
+
+        // When
+        $adapterManager->setDefaultTags(["abc" => "hello"]);
+
+        // Then
+        self::assertSame(["abc" => "hello"], $inMemoryClientAdapter->getDefaultTags());
+    }
+
+    public function setDefaultTags_passesToNewInstance(): void
+    {
+        // Given
+        $adapterManager = $this->createAdapterManager();
+
+        // And an instance is created
+        $adapterManager->instance("log_datadog");
+
+        // When
+        $adapterManager->setDefaultTags(["abc" => "123"]);
+
+        // Then
+        self::assertEquals(["abc" => "123"], $adapterManager->instance("memory"));
+    }
 }