diff --git a/homeassistant/components/mqtt/binary_sensor.py b/homeassistant/components/mqtt/binary_sensor.py
index 150ce3a7eb6..17daaaf08ee 100644
--- a/homeassistant/components/mqtt/binary_sensor.py
+++ b/homeassistant/components/mqtt/binary_sensor.py
@@ -35,7 +35,7 @@ from homeassistant.util import dt as dt_util
 
 from . import PLATFORMS, MqttValueTemplate, subscription
 from .. import mqtt
-from .const import CONF_ENCODING, CONF_QOS, CONF_STATE_TOPIC, DOMAIN
+from .const import CONF_ENCODING, CONF_QOS, CONF_STATE_TOPIC, DOMAIN, PAYLOAD_NONE
 from .debug_info import log_messages
 from .mixins import (
     MQTT_ENTITY_COMMON_SCHEMA,
@@ -52,7 +52,6 @@ DEFAULT_PAYLOAD_OFF = "OFF"
 DEFAULT_PAYLOAD_ON = "ON"
 DEFAULT_FORCE_UPDATE = False
 CONF_EXPIRE_AFTER = "expire_after"
-PAYLOAD_NONE = "None"
 
 PLATFORM_SCHEMA = mqtt.MQTT_RO_PLATFORM_SCHEMA.extend(
     {
diff --git a/homeassistant/components/mqtt/climate.py b/homeassistant/components/mqtt/climate.py
index 91d7cdd772d..2b4e03f8663 100644
--- a/homeassistant/components/mqtt/climate.py
+++ b/homeassistant/components/mqtt/climate.py
@@ -64,7 +64,7 @@ from . import (
     subscription,
 )
 from .. import mqtt
-from .const import CONF_ENCODING, CONF_QOS, CONF_RETAIN, DOMAIN
+from .const import CONF_ENCODING, CONF_QOS, CONF_RETAIN, DOMAIN, PAYLOAD_NONE
 from .debug_info import log_messages
 from .mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity, async_setup_entry_helper
 
@@ -125,8 +125,6 @@ CONF_TEMP_MAX = "max_temp"
 CONF_TEMP_MIN = "min_temp"
 CONF_TEMP_STEP = "temp_step"
 
-PAYLOAD_NONE = "None"
-
 MQTT_CLIMATE_ATTRIBUTES_BLOCKED = frozenset(
     {
         climate.ATTR_AUX_HEAT,
diff --git a/homeassistant/components/mqtt/const.py b/homeassistant/components/mqtt/const.py
index 0feb21b0010..46396820545 100644
--- a/homeassistant/components/mqtt/const.py
+++ b/homeassistant/components/mqtt/const.py
@@ -18,6 +18,7 @@ CONF_ENCODING = "encoding"
 CONF_QOS = ATTR_QOS
 CONF_RETAIN = ATTR_RETAIN
 CONF_STATE_TOPIC = "state_topic"
+CONF_STATE_VALUE_TEMPLATE = "state_value_template"
 CONF_TOPIC = "topic"
 CONF_WILL_MESSAGE = "will_message"
 
diff --git a/homeassistant/components/mqtt/fan.py b/homeassistant/components/mqtt/fan.py
index 6fe36cd5fcd..114c8f5729f 100644
--- a/homeassistant/components/mqtt/fan.py
+++ b/homeassistant/components/mqtt/fan.py
@@ -49,12 +49,13 @@ from .const import (
     CONF_QOS,
     CONF_RETAIN,
     CONF_STATE_TOPIC,
+    CONF_STATE_VALUE_TEMPLATE,
     DOMAIN,
+    PAYLOAD_NONE,
 )
 from .debug_info import log_messages
 from .mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity, async_setup_entry_helper
 
-CONF_STATE_VALUE_TEMPLATE = "state_value_template"
 CONF_PERCENTAGE_STATE_TOPIC = "percentage_state_topic"
 CONF_PERCENTAGE_COMMAND_TOPIC = "percentage_command_topic"
 CONF_PERCENTAGE_VALUE_TEMPLATE = "percentage_value_template"
@@ -94,8 +95,6 @@ DEFAULT_SPEED_RANGE_MAX = 100
 OSCILLATE_ON_PAYLOAD = "oscillate_on"
 OSCILLATE_OFF_PAYLOAD = "oscillate_off"
 
-PAYLOAD_NONE = "None"
-
 MQTT_FAN_ATTRIBUTES_BLOCKED = frozenset(
     {
         fan.ATTR_DIRECTION,
diff --git a/homeassistant/components/mqtt/humidifier.py b/homeassistant/components/mqtt/humidifier.py
index c9a5341a43f..0ab99cf0914 100644
--- a/homeassistant/components/mqtt/humidifier.py
+++ b/homeassistant/components/mqtt/humidifier.py
@@ -39,7 +39,9 @@ from .const import (
     CONF_QOS,
     CONF_RETAIN,
     CONF_STATE_TOPIC,
+    CONF_STATE_VALUE_TEMPLATE,
     DOMAIN,
+    PAYLOAD_NONE,
 )
 from .debug_info import log_messages
 from .mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity, async_setup_entry_helper
@@ -52,7 +54,6 @@ CONF_MODE_STATE_TOPIC = "mode_state_topic"
 CONF_MODE_STATE_TEMPLATE = "mode_state_template"
 CONF_PAYLOAD_RESET_MODE = "payload_reset_mode"
 CONF_PAYLOAD_RESET_HUMIDITY = "payload_reset_humidity"
-CONF_STATE_VALUE_TEMPLATE = "state_value_template"
 CONF_TARGET_HUMIDITY_COMMAND_TEMPLATE = "target_humidity_command_template"
 CONF_TARGET_HUMIDITY_COMMAND_TOPIC = "target_humidity_command_topic"
 CONF_TARGET_HUMIDITY_MIN = "min_humidity"
@@ -66,8 +67,6 @@ DEFAULT_PAYLOAD_ON = "ON"
 DEFAULT_PAYLOAD_OFF = "OFF"
 DEFAULT_PAYLOAD_RESET = "None"
 
-PAYLOAD_NONE = "None"
-
 MQTT_HUMIDIFIER_ATTRIBUTES_BLOCKED = frozenset(
     {
         humidifier.ATTR_HUMIDITY,
diff --git a/homeassistant/components/mqtt/light/schema_basic.py b/homeassistant/components/mqtt/light/schema_basic.py
index 1ff08a49ab1..d5665a1beff 100644
--- a/homeassistant/components/mqtt/light/schema_basic.py
+++ b/homeassistant/components/mqtt/light/schema_basic.py
@@ -59,6 +59,8 @@ from ..const import (
     CONF_QOS,
     CONF_RETAIN,
     CONF_STATE_TOPIC,
+    CONF_STATE_VALUE_TEMPLATE,
+    PAYLOAD_NONE,
 )
 from ..debug_info import log_messages
 from ..mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity
@@ -97,7 +99,6 @@ CONF_RGBWW_COMMAND_TEMPLATE = "rgbww_command_template"
 CONF_RGBWW_COMMAND_TOPIC = "rgbww_command_topic"
 CONF_RGBWW_STATE_TOPIC = "rgbww_state_topic"
 CONF_RGBWW_VALUE_TEMPLATE = "rgbww_value_template"
-CONF_STATE_VALUE_TEMPLATE = "state_value_template"
 CONF_XY_COMMAND_TOPIC = "xy_command_topic"
 CONF_XY_STATE_TOPIC = "xy_state_topic"
 CONF_XY_VALUE_TEMPLATE = "xy_value_template"
@@ -109,8 +110,6 @@ CONF_WHITE_VALUE_STATE_TOPIC = "white_value_state_topic"
 CONF_WHITE_VALUE_TEMPLATE = "white_value_template"
 CONF_ON_COMMAND_TYPE = "on_command_type"
 
-PAYLOAD_NONE = "None"
-
 MQTT_LIGHT_ATTRIBUTES_BLOCKED = frozenset(
     {
         ATTR_COLOR_MODE,
diff --git a/homeassistant/components/mqtt/light/schema_json.py b/homeassistant/components/mqtt/light/schema_json.py
index 52b840fcfaf..83d40ed5aae 100644
--- a/homeassistant/components/mqtt/light/schema_json.py
+++ b/homeassistant/components/mqtt/light/schema_json.py
@@ -100,8 +100,6 @@ CONF_FLASH_TIME_SHORT = "flash_time_short"
 CONF_MAX_MIREDS = "max_mireds"
 CONF_MIN_MIREDS = "min_mireds"
 
-PAYLOAD_NONE = "None"
-
 
 def valid_color_configuration(config):
     """Test color_mode is not combined with deprecated config."""
diff --git a/homeassistant/components/mqtt/light/schema_template.py b/homeassistant/components/mqtt/light/schema_template.py
index 5700a8ab868..4f25bde928d 100644
--- a/homeassistant/components/mqtt/light/schema_template.py
+++ b/homeassistant/components/mqtt/light/schema_template.py
@@ -41,6 +41,7 @@ from ..const import (
     CONF_QOS,
     CONF_RETAIN,
     CONF_STATE_TOPIC,
+    PAYLOAD_NONE,
 )
 from ..debug_info import log_messages
 from ..mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity
@@ -67,8 +68,6 @@ CONF_MIN_MIREDS = "min_mireds"
 CONF_RED_TEMPLATE = "red_template"
 CONF_WHITE_VALUE_TEMPLATE = "white_value_template"
 
-PAYLOAD_NONE = "None"
-
 PLATFORM_SCHEMA_TEMPLATE = (
     mqtt.MQTT_RW_PLATFORM_SCHEMA.extend(
         {
diff --git a/homeassistant/components/mqtt/siren.py b/homeassistant/components/mqtt/siren.py
index b3c5df157c9..e43edb12873 100644
--- a/homeassistant/components/mqtt/siren.py
+++ b/homeassistant/components/mqtt/siren.py
@@ -48,6 +48,7 @@ from .const import (
     CONF_QOS,
     CONF_RETAIN,
     CONF_STATE_TOPIC,
+    CONF_STATE_VALUE_TEMPLATE,
     DOMAIN,
     PAYLOAD_EMPTY_JSON,
     PAYLOAD_NONE,
@@ -66,7 +67,6 @@ CONF_AVAILABLE_TONES = "available_tones"
 CONF_COMMAND_OFF_TEMPLATE = "command_off_template"
 CONF_STATE_ON = "state_on"
 CONF_STATE_OFF = "state_off"
-CONF_STATE_VALUE_TEMPLATE = "state_value_template"
 CONF_SUPPORT_DURATION = "support_duration"
 CONF_SUPPORT_VOLUME_SET = "support_volume_set"
 
diff --git a/homeassistant/components/mqtt/switch.py b/homeassistant/components/mqtt/switch.py
index 906901b6080..f0ec18cc379 100644
--- a/homeassistant/components/mqtt/switch.py
+++ b/homeassistant/components/mqtt/switch.py
@@ -33,6 +33,7 @@ from .const import (
     CONF_RETAIN,
     CONF_STATE_TOPIC,
     DOMAIN,
+    PAYLOAD_NONE,
 )
 from .debug_info import log_messages
 from .mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity, async_setup_entry_helper
@@ -51,8 +52,6 @@ DEFAULT_OPTIMISTIC = False
 CONF_STATE_ON = "state_on"
 CONF_STATE_OFF = "state_off"
 
-PAYLOAD_NONE = "None"
-
 PLATFORM_SCHEMA = mqtt.MQTT_RW_PLATFORM_SCHEMA.extend(
     {
         vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,