diff --git a/sms/classes/manager.php b/sms/classes/manager.php
index 708b16bfd76..a19445be205 100644
--- a/sms/classes/manager.php
+++ b/sms/classes/manager.php
@@ -78,12 +78,34 @@ class manager {
             throw new \coding_exception('Sensitive messages cannot be sent asynchronously');
         }
 
+        return $this->send_message(
+            message: $message,
+            async: $async,
+            gatewayid: $gatewayid,
+        );
+    }
+
+    /**
+     * Send a message using the message object.
+     *
+     * @param message $message The message object
+     * @param bool $async Whether this SMS should be sent asynchronously. Note: sensitive messages cannot be sent async
+     * @param ?int $gatewayid the gateway instance id to send the sms in a specific gateway config
+     * @return message the message object after trying to send the message
+     */
+    public function send_message(
+        message $message,
+        bool $async = true,
+        ?int $gatewayid = null,
+    ): message {
         if ($async) {
-            // TODO See MDL-81015 for further information.
-            throw new \coding_exception('Asynchronous sending is not yet implemented');
+            $message = $message->with(status: message_status::GATEWAY_QUEUED);
+            $message = $this->save_message($message);
+            \core_sms\task\send_sms_task::queue($message);
+            return $message;
         }
 
-        if (\core_text::strlen($content) > self::MESSAGE_LENGTH_LIMIT) {
+        if (\core_text::strlen($message->content) > self::MESSAGE_LENGTH_LIMIT) {
             $message = $message->with(status: message_status::MESSAGE_OVER_SIZE);
         } else if ($gateway = $this->get_gateway_for_message($message, $gatewayid)) {
             $message = $message->with(gatewayid: $gateway->id);
diff --git a/sms/classes/task/send_sms_task.php b/sms/classes/task/send_sms_task.php
new file mode 100644
index 00000000000..952eaf9ce2f
--- /dev/null
+++ b/sms/classes/task/send_sms_task.php
@@ -0,0 +1,65 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace core_sms\task;
+
+use core\task\adhoc_task;
+use core_sms\message;
+
+/**
+ * Ad-hoc task to send an SMS.
+ *
+ * Please note: sensitive SMS should not be sent from this task, it's already handled via the SMS api to exclude them.
+ *
+ * @package    core_sms
+ * @copyright  2025 Safat Shahin <safat.shahin@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class send_sms_task extends adhoc_task {
+
+    #[\Override]
+    public function execute(): void {
+
+        $smsdata = $this->get_custom_data();
+
+        $manager = \core\di::get(\core_sms\manager::class);
+        $message = $manager->get_message(
+            filter: ['id' => $smsdata->messageid],
+        );
+        $manager->send_message(
+            message: $message,
+            async: false,
+        );
+
+    }
+
+    /**
+     * Queue the SMS.
+     *
+     * @param message $message The message object.
+     */
+    public static function queue(
+        message $message,
+    ): void {
+        $task = new self();
+        $task->set_custom_data(
+            [
+                'messageid' => $message->id,
+            ]
+        );
+        \core\task\manager::queue_adhoc_task($task);
+    }
+}
diff --git a/sms/tests/manager_test.php b/sms/tests/manager_test.php
index 6a2379554e4..da4508e9d65 100644
--- a/sms/tests/manager_test.php
+++ b/sms/tests/manager_test.php
@@ -16,6 +16,8 @@
 
 namespace core_sms;
 
+use core_sms\task\send_sms_task;
+
 /**
  * Tests for sms manager
  *
@@ -421,21 +423,52 @@ final class manager_test extends \advanced_testcase {
         );
     }
 
-    public function test_async_not_supported_yet(): void {
+    /**
+     * Test sending SMS asynchronously.
+     */
+    public function test_send_async(): void {
         $this->resetAfterTest();
 
-        $manager = \core\di::get(\core_sms\manager::class);
+        $config = new \stdClass();
+        $config->priority = 50;
 
-        $this->expectException(\coding_exception::class);
-        $this->expectExceptionMessage('Asynchronous sending is not yet implemented');
-        $manager->send(
+        $manager = \core\di::get(\core_sms\manager::class);
+        $manager->create_gateway_instance(
+            classname: \smsgateway_dummy\gateway::class,
+            name: 'dummy',
+            enabled: true,
+            config: $config,
+        );
+
+        $message = $manager->send(
             recipientnumber: '+447123456789',
             content: 'Hello, world!',
             component: 'core',
             messagetype: 'test',
             recipientuserid: null,
-            async: true,
         );
+
+        $this->assertInstanceOf(message::class, $message);
+        $this->assertIsInt($message->id);
+        $this->assertEquals(message_status::GATEWAY_QUEUED, $message->status);
+        $this->assertEquals('Hello, world!', $message->content);
+
+        $messagedbrecords = $manager->get_messages();
+        $this->assertInstanceOf(\Generator::class, $messagedbrecords);
+        $messages = iterator_to_array($messagedbrecords);
+        $this->assertCount(1, $messages);
+
+        $storedmessage = $manager->get_message(['id' => $message->id]);
+        $this->assertEquals($message, $storedmessage);
+
+        $adhoctask = \core\task\manager::get_adhoc_tasks(send_sms_task::class);
+        $this->assertCount(1, $adhoctask);
+
+        // Now lets run the task and check if SMS is sent.
+        $this->run_all_adhoc_tasks();
+
+        $message = $manager->get_message(['id' => $message->id]);
+        $this->assertEquals(message_status::GATEWAY_SENT, $message->status);
     }
 
     public function test_send_no_gateway(): void {