diff --git a/homeassistant/components/mqtt/alarm_control_panel.py b/homeassistant/components/mqtt/alarm_control_panel.py
index 76bac8540a495e..613f665c302cbe 100644
--- a/homeassistant/components/mqtt/alarm_control_panel.py
+++ b/homeassistant/components/mqtt/alarm_control_panel.py
@@ -35,6 +35,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 _SUPPORTED_FEATURES = {
     "arm_home": AlarmControlPanelEntityFeature.ARM_HOME,
     "arm_away": AlarmControlPanelEntityFeature.ARM_AWAY,
diff --git a/homeassistant/components/mqtt/binary_sensor.py b/homeassistant/components/mqtt/binary_sensor.py
index 7f89a78991ac9f..b49dc7aa24c055 100644
--- a/homeassistant/components/mqtt/binary_sensor.py
+++ b/homeassistant/components/mqtt/binary_sensor.py
@@ -43,6 +43,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 DEFAULT_NAME = "MQTT Binary sensor"
 CONF_OFF_DELAY = "off_delay"
 DEFAULT_PAYLOAD_OFF = "OFF"
diff --git a/homeassistant/components/mqtt/button.py b/homeassistant/components/mqtt/button.py
index 2aac51890c1c3e..8e5446b532e91f 100644
--- a/homeassistant/components/mqtt/button.py
+++ b/homeassistant/components/mqtt/button.py
@@ -20,6 +20,8 @@
 from .schemas import MQTT_ENTITY_COMMON_SCHEMA
 from .util import valid_publish_topic
 
+PARALLEL_UPDATES = 0
+
 CONF_PAYLOAD_PRESS = "payload_press"
 DEFAULT_NAME = "MQTT Button"
 DEFAULT_PAYLOAD_PRESS = "PRESS"
diff --git a/homeassistant/components/mqtt/camera.py b/homeassistant/components/mqtt/camera.py
index ca622defb25d31..88fabad044601c 100644
--- a/homeassistant/components/mqtt/camera.py
+++ b/homeassistant/components/mqtt/camera.py
@@ -27,6 +27,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 CONF_IMAGE_ENCODING = "image_encoding"
 
 DEFAULT_NAME = "MQTT Camera"
diff --git a/homeassistant/components/mqtt/climate.py b/homeassistant/components/mqtt/climate.py
index dd3efa4054b7e6..2419e3f32ac578 100644
--- a/homeassistant/components/mqtt/climate.py
+++ b/homeassistant/components/mqtt/climate.py
@@ -91,6 +91,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 DEFAULT_NAME = "MQTT HVAC"
 
 CONF_FAN_MODE_COMMAND_TEMPLATE = "fan_mode_command_template"
diff --git a/homeassistant/components/mqtt/cover.py b/homeassistant/components/mqtt/cover.py
index 0b495663803d77..c7d041848f0479 100644
--- a/homeassistant/components/mqtt/cover.py
+++ b/homeassistant/components/mqtt/cover.py
@@ -69,6 +69,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 CONF_GET_POSITION_TOPIC = "position_topic"
 CONF_GET_POSITION_TEMPLATE = "position_template"
 CONF_SET_POSITION_TOPIC = "set_position_topic"
diff --git a/homeassistant/components/mqtt/device_tracker.py b/homeassistant/components/mqtt/device_tracker.py
index b87db40ccf73da..bdf543e046a3dc 100644
--- a/homeassistant/components/mqtt/device_tracker.py
+++ b/homeassistant/components/mqtt/device_tracker.py
@@ -36,6 +36,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 CONF_PAYLOAD_HOME = "payload_home"
 CONF_PAYLOAD_NOT_HOME = "payload_not_home"
 CONF_SOURCE_TYPE = "source_type"
diff --git a/homeassistant/components/mqtt/event.py b/homeassistant/components/mqtt/event.py
index 3f67891ca5eb11..d9812aaaf48529 100644
--- a/homeassistant/components/mqtt/event.py
+++ b/homeassistant/components/mqtt/event.py
@@ -38,6 +38,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 CONF_EVENT_TYPES = "event_types"
 
 MQTT_EVENT_ATTRIBUTES_BLOCKED = frozenset(
diff --git a/homeassistant/components/mqtt/fan.py b/homeassistant/components/mqtt/fan.py
index 70187ee9eb1e09..b3c0f22789c460 100644
--- a/homeassistant/components/mqtt/fan.py
+++ b/homeassistant/components/mqtt/fan.py
@@ -57,6 +57,8 @@
 from .schemas import MQTT_ENTITY_COMMON_SCHEMA
 from .util import valid_publish_topic, valid_subscribe_topic
 
+PARALLEL_UPDATES = 0
+
 CONF_DIRECTION_STATE_TOPIC = "direction_state_topic"
 CONF_DIRECTION_COMMAND_TOPIC = "direction_command_topic"
 CONF_DIRECTION_VALUE_TEMPLATE = "direction_value_template"
diff --git a/homeassistant/components/mqtt/humidifier.py b/homeassistant/components/mqtt/humidifier.py
index 304d293de79822..5d1af03ad249ae 100644
--- a/homeassistant/components/mqtt/humidifier.py
+++ b/homeassistant/components/mqtt/humidifier.py
@@ -59,6 +59,8 @@
 from .schemas import MQTT_ENTITY_COMMON_SCHEMA
 from .util import valid_publish_topic, valid_subscribe_topic
 
+PARALLEL_UPDATES = 0
+
 CONF_AVAILABLE_MODES_LIST = "modes"
 CONF_DEVICE_CLASS = "device_class"
 CONF_MODE_COMMAND_TEMPLATE = "mode_command_template"
diff --git a/homeassistant/components/mqtt/image.py b/homeassistant/components/mqtt/image.py
index 6ecdee06489263..4b7b2d783d26ff 100644
--- a/homeassistant/components/mqtt/image.py
+++ b/homeassistant/components/mqtt/image.py
@@ -37,6 +37,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 CONF_CONTENT_TYPE = "content_type"
 CONF_IMAGE_ENCODING = "image_encoding"
 CONF_IMAGE_TOPIC = "image_topic"
diff --git a/homeassistant/components/mqtt/lawn_mower.py b/homeassistant/components/mqtt/lawn_mower.py
index 11afe4220c4b32..87577c4b4d904d 100644
--- a/homeassistant/components/mqtt/lawn_mower.py
+++ b/homeassistant/components/mqtt/lawn_mower.py
@@ -38,6 +38,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 CONF_ACTIVITY_STATE_TOPIC = "activity_state_topic"
 CONF_ACTIVITY_VALUE_TEMPLATE = "activity_value_template"
 CONF_DOCK_COMMAND_TOPIC = "dock_command_topic"
diff --git a/homeassistant/components/mqtt/light/__init__.py b/homeassistant/components/mqtt/light/__init__.py
index a1ba955181dc2e..328f80cb5ea713 100644
--- a/homeassistant/components/mqtt/light/__init__.py
+++ b/homeassistant/components/mqtt/light/__init__.py
@@ -30,6 +30,8 @@
     MqttLightTemplate,
 )
 
+PARALLEL_UPDATES = 0
+
 
 def validate_mqtt_light_discovery(config_value: dict[str, Any]) -> ConfigType:
     """Validate MQTT light schema for discovery."""
diff --git a/homeassistant/components/mqtt/lock.py b/homeassistant/components/mqtt/lock.py
index e58d15b659dcb2..2113dbbd5ba9a7 100644
--- a/homeassistant/components/mqtt/lock.py
+++ b/homeassistant/components/mqtt/lock.py
@@ -45,6 +45,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 CONF_CODE_FORMAT = "code_format"
 
 CONF_PAYLOAD_LOCK = "payload_lock"
diff --git a/homeassistant/components/mqtt/notify.py b/homeassistant/components/mqtt/notify.py
index 4a5ccc0277471b..84442e75e73188 100644
--- a/homeassistant/components/mqtt/notify.py
+++ b/homeassistant/components/mqtt/notify.py
@@ -20,6 +20,8 @@
 from .schemas import MQTT_ENTITY_COMMON_SCHEMA
 from .util import valid_publish_topic
 
+PARALLEL_UPDATES = 0
+
 DEFAULT_NAME = "MQTT notify"
 
 PLATFORM_SCHEMA_MODERN = MQTT_BASE_SCHEMA.extend(
diff --git a/homeassistant/components/mqtt/number.py b/homeassistant/components/mqtt/number.py
index 895334f2e1e351..a9bf1829b6392a 100644
--- a/homeassistant/components/mqtt/number.py
+++ b/homeassistant/components/mqtt/number.py
@@ -50,6 +50,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 CONF_MIN = "min"
 CONF_MAX = "max"
 CONF_STEP = "step"
diff --git a/homeassistant/components/mqtt/scene.py b/homeassistant/components/mqtt/scene.py
index dad596d9c4f62b..314bd716ee0b08 100644
--- a/homeassistant/components/mqtt/scene.py
+++ b/homeassistant/components/mqtt/scene.py
@@ -21,6 +21,8 @@
 from .schemas import MQTT_ENTITY_COMMON_SCHEMA
 from .util import valid_publish_topic
 
+PARALLEL_UPDATES = 0
+
 DEFAULT_NAME = "MQTT Scene"
 DEFAULT_RETAIN = False
 
diff --git a/homeassistant/components/mqtt/select.py b/homeassistant/components/mqtt/select.py
index 37d3287988fe93..55d56ecd77407a 100644
--- a/homeassistant/components/mqtt/select.py
+++ b/homeassistant/components/mqtt/select.py
@@ -37,6 +37,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 DEFAULT_NAME = "MQTT Select"
 
 MQTT_SELECT_ATTRIBUTES_BLOCKED = frozenset(
diff --git a/homeassistant/components/mqtt/sensor.py b/homeassistant/components/mqtt/sensor.py
index 17ea0ab1f5be3e..bacbf4d323ef7e 100644
--- a/homeassistant/components/mqtt/sensor.py
+++ b/homeassistant/components/mqtt/sensor.py
@@ -47,6 +47,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 CONF_EXPIRE_AFTER = "expire_after"
 CONF_LAST_RESET_VALUE_TEMPLATE = "last_reset_value_template"
 CONF_SUGGESTED_DISPLAY_PRECISION = "suggested_display_precision"
diff --git a/homeassistant/components/mqtt/siren.py b/homeassistant/components/mqtt/siren.py
index 1937b60fde0650..22f64053d23a0d 100644
--- a/homeassistant/components/mqtt/siren.py
+++ b/homeassistant/components/mqtt/siren.py
@@ -55,6 +55,8 @@
 )
 from .schemas import MQTT_ENTITY_COMMON_SCHEMA
 
+PARALLEL_UPDATES = 0
+
 DEFAULT_NAME = "MQTT Siren"
 DEFAULT_PAYLOAD_ON = "ON"
 DEFAULT_PAYLOAD_OFF = "OFF"
diff --git a/homeassistant/components/mqtt/switch.py b/homeassistant/components/mqtt/switch.py
index a73c4fe53f8c5e..c90174e8a0122a 100644
--- a/homeassistant/components/mqtt/switch.py
+++ b/homeassistant/components/mqtt/switch.py
@@ -43,6 +43,8 @@
 )
 from .schemas import MQTT_ENTITY_COMMON_SCHEMA
 
+PARALLEL_UPDATES = 0
+
 DEFAULT_NAME = "MQTT Switch"
 DEFAULT_PAYLOAD_ON = "ON"
 DEFAULT_PAYLOAD_OFF = "OFF"
diff --git a/homeassistant/components/mqtt/text.py b/homeassistant/components/mqtt/text.py
index edfecfbc038612..b4ed33a77300a3 100644
--- a/homeassistant/components/mqtt/text.py
+++ b/homeassistant/components/mqtt/text.py
@@ -40,6 +40,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 CONF_MAX = "max"
 CONF_MIN = "min"
 CONF_PATTERN = "pattern"
diff --git a/homeassistant/components/mqtt/update.py b/homeassistant/components/mqtt/update.py
index 8878ff6312753b..99b4e5cb821df3 100644
--- a/homeassistant/components/mqtt/update.py
+++ b/homeassistant/components/mqtt/update.py
@@ -32,6 +32,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 DEFAULT_NAME = "MQTT Update"
 
 CONF_DISPLAY_PRECISION = "display_precision"
diff --git a/homeassistant/components/mqtt/vacuum.py b/homeassistant/components/mqtt/vacuum.py
index 86b32aa281bbc7..ac6dca3cbbc46b 100644
--- a/homeassistant/components/mqtt/vacuum.py
+++ b/homeassistant/components/mqtt/vacuum.py
@@ -39,6 +39,8 @@
 from .schemas import MQTT_ENTITY_COMMON_SCHEMA
 from .util import valid_publish_topic
 
+PARALLEL_UPDATES = 0
+
 BATTERY = "battery_level"
 FAN_SPEED = "fan_speed"
 STATE = "state"
diff --git a/homeassistant/components/mqtt/valve.py b/homeassistant/components/mqtt/valve.py
index 00d3d7d79bdf68..50c5960f801c3a 100644
--- a/homeassistant/components/mqtt/valve.py
+++ b/homeassistant/components/mqtt/valve.py
@@ -63,6 +63,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 CONF_REPORTS_POSITION = "reports_position"
 
 DEFAULT_NAME = "MQTT Valve"
diff --git a/homeassistant/components/mqtt/water_heater.py b/homeassistant/components/mqtt/water_heater.py
index b98d73e0bfeb6c..4c1d3fa8a53fb8 100644
--- a/homeassistant/components/mqtt/water_heater.py
+++ b/homeassistant/components/mqtt/water_heater.py
@@ -72,6 +72,8 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+PARALLEL_UPDATES = 0
+
 DEFAULT_NAME = "MQTT Water Heater"
 
 MQTT_WATER_HEATER_ATTRIBUTES_BLOCKED = frozenset(