diff --git a/homeassistant/components/nextcloud/binary_sensor.py b/homeassistant/components/nextcloud/binary_sensor.py
index d811c6c9249..6e0df919f90 100644
--- a/homeassistant/components/nextcloud/binary_sensor.py
+++ b/homeassistant/components/nextcloud/binary_sensor.py
@@ -6,7 +6,8 @@ from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
-from . import DOMAIN
+from .const import DOMAIN
+from .entity import NextcloudEntity
 
 BINARY_SENSORS = (
     "nextcloud_system_enable_avatars",
@@ -32,34 +33,10 @@ def setup_platform(
     add_entities(binary_sensors, True)
 
 
-class NextcloudBinarySensor(BinarySensorEntity):
+class NextcloudBinarySensor(NextcloudEntity, BinarySensorEntity):
     """Represents a Nextcloud binary sensor."""
 
-    def __init__(self, item):
-        """Initialize the Nextcloud binary sensor."""
-        self._name = item
-        self._is_on = None
-
     @property
-    def icon(self):
-        """Return the icon for this binary sensor."""
-        return "mdi:cloud"
-
-    @property
-    def name(self):
-        """Return the name for this binary sensor."""
-        return self._name
-
-    @property
-    def is_on(self):
+    def is_on(self) -> bool:
         """Return true if the binary sensor is on."""
-        return self._is_on == "yes"
-
-    @property
-    def unique_id(self):
-        """Return the unique ID for this binary sensor."""
-        return f"{self.hass.data[DOMAIN]['instance']}#{self._name}"
-
-    def update(self) -> None:
-        """Update the binary sensor."""
-        self._is_on = self.hass.data[DOMAIN][self._name]
+        return self._state == "yes"
diff --git a/homeassistant/components/nextcloud/entity.py b/homeassistant/components/nextcloud/entity.py
new file mode 100644
index 00000000000..cb066e0fcf7
--- /dev/null
+++ b/homeassistant/components/nextcloud/entity.py
@@ -0,0 +1,26 @@
+"""Base entity for the Nextcloud integration."""
+from homeassistant.helpers.entity import Entity
+from homeassistant.helpers.typing import StateType
+
+from .const import DOMAIN
+
+
+class NextcloudEntity(Entity):
+    """Base Nextcloud entity."""
+
+    _attr_icon = "mdi:cloud"
+
+    def __init__(self, item: str) -> None:
+        """Initialize the Nextcloud entity."""
+        self._attr_name = item
+        self.item = item
+        self._state: StateType = None
+
+    @property
+    def unique_id(self):
+        """Return the unique ID for this sensor."""
+        return f"{self.hass.data[DOMAIN]['instance']}#{self.item}"
+
+    def update(self) -> None:
+        """Update the sensor."""
+        self._state = self.hass.data[DOMAIN][self.item]
diff --git a/homeassistant/components/nextcloud/sensor.py b/homeassistant/components/nextcloud/sensor.py
index 6f1ce00eeeb..91d4411b0cb 100644
--- a/homeassistant/components/nextcloud/sensor.py
+++ b/homeassistant/components/nextcloud/sensor.py
@@ -4,9 +4,10 @@ from __future__ import annotations
 from homeassistant.components.sensor import SensorEntity
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType, StateType
 
-from . import DOMAIN
+from .const import DOMAIN
+from .entity import NextcloudEntity
 
 SENSORS = (
     "nextcloud_system_version",
@@ -71,34 +72,10 @@ def setup_platform(
     add_entities(sensors, True)
 
 
-class NextcloudSensor(SensorEntity):
+class NextcloudSensor(NextcloudEntity, SensorEntity):
     """Represents a Nextcloud sensor."""
 
-    def __init__(self, item):
-        """Initialize the Nextcloud sensor."""
-        self._name = item
-        self._state = None
-
     @property
-    def icon(self):
-        """Return the icon for this sensor."""
-        return "mdi:cloud"
-
-    @property
-    def name(self):
-        """Return the name for this sensor."""
-        return self._name
-
-    @property
-    def native_value(self):
+    def native_value(self) -> StateType:
         """Return the state for this sensor."""
         return self._state
-
-    @property
-    def unique_id(self):
-        """Return the unique ID for this sensor."""
-        return f"{self.hass.data[DOMAIN]['instance']}#{self._name}"
-
-    def update(self) -> None:
-        """Update the sensor."""
-        self._state = self.hass.data[DOMAIN][self._name]