diff --git a/amqtt/plugins/authentication.py b/amqtt/plugins/authentication.py
index 90f7eb9..954c403 100644
--- a/amqtt/plugins/authentication.py
+++ b/amqtt/plugins/authentication.py
@@ -1,44 +1,14 @@
 from pathlib import Path
-from typing import Any
 
 from passlib.apps import custom_app_context as pwd_context
 
 from amqtt.broker import BrokerContext
-from amqtt.plugins.base import BasePlugin
-from amqtt.plugins.manager import BaseContext
+from amqtt.plugins.base import BaseAuthPlugin
 from amqtt.session import Session
 
 _PARTS_EXPECTED_LENGTH = 2  # Expected number of parts in a valid line
 
 
-class BaseAuthPlugin(BasePlugin[BaseContext]):
-    """Base class for authentication plugins."""
-
-    def __init__(self, context: BaseContext) -> None:
-        super().__init__(context)
-
-        self.auth_config: dict[str, Any] | None = self._get_config_section("auth")
-        if not self.auth_config:
-            self.context.logger.warning("'auth' section not found in context configuration")
-
-    async def authenticate(self, *, session: Session) -> bool | None:
-        """Logic for session authentication.
-
-        Args:
-            session: amqtt.session.Session
-
-        Returns:
-            - `True` if user is authentication succeed, `False` if user authentication fails
-            - `None` if authentication can't be achieved (then plugin result is then ignored)
-
-        """
-        if not self.auth_config:
-            # auth config section not found
-            self.context.logger.warning("'auth' section not found in context configuration")
-            return False
-        return True
-
-
 class AnonymousAuthPlugin(BaseAuthPlugin):
     """Authentication plugin allowing anonymous access."""
 
diff --git a/amqtt/plugins/base.py b/amqtt/plugins/base.py
index 2d5f644..90ee1b3 100644
--- a/amqtt/plugins/base.py
+++ b/amqtt/plugins/base.py
@@ -1,6 +1,8 @@
 from typing import Any, Generic, TypeVar
 
+from amqtt.broker import Action
 from amqtt.plugins.manager import BaseContext
+from amqtt.session import Session
 
 C = TypeVar("C", bound=BaseContext)
 
@@ -24,3 +26,62 @@ class BasePlugin(Generic[C]):
 
     async def close(self) -> None:
         """Override if plugin needs to clean up resources upon shutdown."""
+
+
+class BaseTopicPlugin(BasePlugin[BaseContext]):
+    """Base class for topic plugins."""
+
+    def __init__(self, context: BaseContext) -> None:
+        super().__init__(context)
+
+        self.topic_config: dict[str, Any] | None = self._get_config_section("topic-check")
+        if self.topic_config is None:
+            self.context.logger.warning("'topic-check' section not found in context configuration")
+
+    async def topic_filtering(
+        self, *, session: Session | None = None, topic: str | None = None, action: Action | None = None
+    ) -> bool:
+        """Logic for filtering out topics.
+
+        Args:
+            session: amqtt.session.Session
+            topic: str
+            action: amqtt.broker.Action
+
+        Returns:
+            bool: `True` if topic is allowed, `False` otherwise
+
+        """
+        if not self.topic_config:
+            # auth config section not found
+            self.context.logger.warning("'topic-check' section not found in context configuration")
+            return False
+        return True
+
+
+class BaseAuthPlugin(BasePlugin[BaseContext]):
+    """Base class for authentication plugins."""
+
+    def __init__(self, context: BaseContext) -> None:
+        super().__init__(context)
+
+        self.auth_config: dict[str, Any] | None = self._get_config_section("auth")
+        if not self.auth_config:
+            self.context.logger.warning("'auth' section not found in context configuration")
+
+    async def authenticate(self, *, session: Session) -> bool | None:
+        """Logic for session authentication.
+
+        Args:
+            session: amqtt.session.Session
+
+        Returns:
+            - `True` if user is authentication succeed, `False` if user authentication fails
+            - `None` if authentication can't be achieved (then plugin result is then ignored)
+
+        """
+        if not self.auth_config:
+            # auth config section not found
+            self.context.logger.warning("'auth' section not found in context configuration")
+            return False
+        return True
diff --git a/amqtt/plugins/manager.py b/amqtt/plugins/manager.py
index d1beb60..dd177e7 100644
--- a/amqtt/plugins/manager.py
+++ b/amqtt/plugins/manager.py
@@ -18,9 +18,8 @@ _LOGGER = logging.getLogger(__name__)
 
 if TYPE_CHECKING:
     from amqtt.broker import Action
-    from amqtt.plugins.authentication import BaseAuthPlugin
-    from amqtt.plugins.base import BasePlugin
-    from amqtt.plugins.topic_checking import BaseTopicPlugin
+    from amqtt.plugins.base import BaseAuthPlugin, BasePlugin, BaseTopicPlugin
+
 
 class Plugin(NamedTuple):
     name: str
diff --git a/amqtt/plugins/topic_checking.py b/amqtt/plugins/topic_checking.py
index d92d672..c61e313 100644
--- a/amqtt/plugins/topic_checking.py
+++ b/amqtt/plugins/topic_checking.py
@@ -1,42 +1,11 @@
 from typing import Any
 
 from amqtt.broker import Action
-from amqtt.plugins.base import BasePlugin
+from amqtt.plugins.base import BaseTopicPlugin
 from amqtt.plugins.manager import BaseContext
 from amqtt.session import Session
 
 
-class BaseTopicPlugin(BasePlugin[BaseContext]):
-    """Base class for topic plugins."""
-
-    def __init__(self, context: BaseContext) -> None:
-        super().__init__(context)
-
-        self.topic_config: dict[str, Any] | None = self._get_config_section("topic-check")
-        if self.topic_config is None:
-            self.context.logger.warning("'topic-check' section not found in context configuration")
-
-    async def topic_filtering(
-        self, *, session: Session | None = None, topic: str | None = None, action: Action | None = None
-    ) -> bool:
-        """Logic for filtering out topics.
-
-        Args:
-            session: amqtt.session.Session
-            topic: str
-            action: amqtt.broker.Action
-
-        Returns:
-            bool: `True` if topic is allowed, `False` otherwise
-
-        """
-        if not self.topic_config:
-            # auth config section not found
-            self.context.logger.warning("'topic-check' section not found in context configuration")
-            return False
-        return True
-
-
 class TopicTabooPlugin(BaseTopicPlugin):
     def __init__(self, context: BaseContext) -> None:
         super().__init__(context)
diff --git a/docs/custom_plugins.md b/docs/custom_plugins.md
index 08ccbdc..34eb4ec 100644
--- a/docs/custom_plugins.md
+++ b/docs/custom_plugins.md
@@ -58,7 +58,7 @@ auth:
 
 These plugins should subclass from `BaseAuthPlugin` and implement the `authenticate` method.
 
-::: amqtt.plugins.authentication.BaseAuthPlugin
+::: amqtt.plugins.base.BaseAuthPlugin
 
 ## Topic Filter Plugins
 
@@ -75,4 +75,4 @@ topic-check:
 These plugins should subclass from `BaseTopicPlugin` and implement the `topic_filtering` method.
 
 
-::: amqtt.plugins.topic_checking.BaseTopicPlugin
+::: amqtt.plugins.base.BaseTopicPlugin
diff --git a/tests/plugins/mocks.py b/tests/plugins/mocks.py
index dab1229..dce94a6 100644
--- a/tests/plugins/mocks.py
+++ b/tests/plugins/mocks.py
@@ -4,10 +4,8 @@ from dataclasses import dataclass
 
 from amqtt.broker import Action
 
-from amqtt.plugins.base import BasePlugin
+from amqtt.plugins.base import BasePlugin, BaseTopicPlugin, BaseAuthPlugin
 from amqtt.plugins.manager import BaseContext
-from amqtt.plugins.topic_checking import BaseTopicPlugin
-from amqtt.plugins.authentication import BaseAuthPlugin
 
 from amqtt.session import Session
 
diff --git a/tests/plugins/test_manager.py b/tests/plugins/test_manager.py
index b9fa575..5164534 100644
--- a/tests/plugins/test_manager.py
+++ b/tests/plugins/test_manager.py
@@ -4,9 +4,8 @@ import unittest
 
 from amqtt.broker import Action
 from amqtt.events import BrokerEvents
-from amqtt.plugins.authentication import BaseAuthPlugin
 from amqtt.plugins.manager import BaseContext, PluginManager
-from amqtt.plugins.topic_checking import BaseTopicPlugin
+from amqtt.plugins.base import BaseTopicPlugin, BaseAuthPlugin
 from amqtt.session import Session
 
 formatter = "[%(asctime)s] %(name)s {%(filename)s:%(lineno)d} %(levelname)s - %(message)s"
diff --git a/tests/plugins/test_topic_checking.py b/tests/plugins/test_topic_checking.py
index e90f365..ef5c69a 100644
--- a/tests/plugins/test_topic_checking.py
+++ b/tests/plugins/test_topic_checking.py
@@ -4,7 +4,8 @@ import pytest
 
 from amqtt.broker import Action, BrokerContext, Broker
 from amqtt.plugins.manager import BaseContext
-from amqtt.plugins.topic_checking import BaseTopicPlugin, TopicAccessControlListPlugin, TopicTabooPlugin
+from amqtt.plugins.topic_checking import TopicAccessControlListPlugin, TopicTabooPlugin
+from amqtt.plugins.base import BaseTopicPlugin
 from amqtt.session import Session
 
 # Base plug-in object