diff --git a/homeassistant/components/hdmi_cec/switch.py b/homeassistant/components/hdmi_cec/switch.py
index 3764766275e..a268d7cfe79 100644
--- a/homeassistant/components/hdmi_cec/switch.py
+++ b/homeassistant/components/hdmi_cec/switch.py
@@ -4,6 +4,7 @@ from __future__ import annotations
 import logging
 
 from homeassistant.components.switch import DOMAIN, SwitchEntity
+from homeassistant.const import STATE_OFF, STATE_ON
 
 from . import ATTR_NEW, CecEntity
 
@@ -34,17 +35,25 @@ class CecSwitchEntity(CecEntity, SwitchEntity):
     def turn_on(self, **kwargs) -> None:
         """Turn device on."""
         self._device.turn_on()
-        self._attr_is_on = True
+        self._state = STATE_ON
         self.schedule_update_ha_state(force_refresh=False)
 
     def turn_off(self, **kwargs) -> None:
         """Turn device off."""
         self._device.turn_off()
-        self._attr_is_on = False
+        self._state = STATE_OFF
         self.schedule_update_ha_state(force_refresh=False)
 
     def toggle(self, **kwargs):
         """Toggle the entity."""
         self._device.toggle()
-        self._attr_is_on = not self._attr_is_on
+        if self._state == STATE_ON:
+            self._state = STATE_OFF
+        else:
+            self._state = STATE_ON
         self.schedule_update_ha_state(force_refresh=False)
+
+    @property
+    def is_on(self) -> bool:
+        """Return True if entity is on."""
+        return self._state == STATE_ON