diff --git a/homeassistant/components/group/binary_sensor.py b/homeassistant/components/group/binary_sensor.py
index 93d4e1e066e..24d6cb86aa1 100644
--- a/homeassistant/components/group/binary_sensor.py
+++ b/homeassistant/components/group/binary_sensor.py
@@ -70,8 +70,6 @@ async def async_setup_platform(
 class BinarySensorGroup(GroupEntity, BinarySensorEntity):
     """Representation of a BinarySensorGroup."""
 
-    _attr_assumed_state: bool = True
-
     def __init__(
         self,
         unique_id: str | None,