diff --git a/homeassistant/components/atag/config_flow.py b/homeassistant/components/atag/config_flow.py
index ff04159bbbc..865159aa658 100644
--- a/homeassistant/components/atag/config_flow.py
+++ b/homeassistant/components/atag/config_flow.py
@@ -4,7 +4,6 @@ import voluptuous as vol
 
 from homeassistant import config_entries
 from homeassistant.const import CONF_EMAIL, CONF_HOST, CONF_PORT
-from homeassistant.core import callback
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
 from . import DOMAIN  # pylint: disable=unused-import
@@ -43,7 +42,6 @@ class AtagConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
 
         return self.async_create_entry(title=atag.id, data=user_input)
 
-    @callback
     async def _show_form(self, errors=None):
         """Show the form to the user."""
         return self.async_show_form(
diff --git a/homeassistant/components/cloud/google_config.py b/homeassistant/components/cloud/google_config.py
index 882124af45c..4b5891359b6 100644
--- a/homeassistant/components/cloud/google_config.py
+++ b/homeassistant/components/cloud/google_config.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_STARTED,
     HTTP_OK,
 )
-from homeassistant.core import CoreState, callback, split_entity_id
+from homeassistant.core import CoreState, split_entity_id
 from homeassistant.helpers import entity_registry
 
 from .const import (
@@ -201,7 +201,6 @@ class CloudGoogleConfig(AbstractConfig):
 
         self._sync_on_started = True
 
-        @callback
         async def sync_google(_):
             """Sync entities to Google."""
             await self.async_sync_entities_all()
diff --git a/homeassistant/components/mqtt/__init__.py b/homeassistant/components/mqtt/__init__.py
index 17fd31e81c5..a43169c3afb 100644
--- a/homeassistant/components/mqtt/__init__.py
+++ b/homeassistant/components/mqtt/__init__.py
@@ -1286,7 +1286,6 @@ class MqttDiscoveryUpdate(Entity):
             else:
                 await self.async_remove()
 
-        @callback
         async def discovery_callback(payload):
             """Handle discovery update."""
             _LOGGER.info(
diff --git a/homeassistant/components/netatmo/sensor.py b/homeassistant/components/netatmo/sensor.py
index 95d43e9eba5..1e6dbc3e386 100644
--- a/homeassistant/components/netatmo/sensor.py
+++ b/homeassistant/components/netatmo/sensor.py
@@ -159,7 +159,6 @@ async def async_setup_entry(hass, entry, async_add_entities):
 
     device_registry = await hass.helpers.device_registry.async_get_registry()
 
-    @callback
     async def add_public_entities(update=True):
         """Retrieve Netatmo public weather entities."""
         entities = {
diff --git a/homeassistant/components/zha/sensor.py b/homeassistant/components/zha/sensor.py
index 6f06b381844..fe305f3c25f 100644
--- a/homeassistant/components/zha/sensor.py
+++ b/homeassistant/components/zha/sensor.py
@@ -140,7 +140,6 @@ class Sensor(ZhaEntity):
         """Restore previous state."""
         self._state = last_state.state
 
-    @callback
     async def async_state_attr_provider(self):
         """Initialize device state attributes."""
         return {}