diff --git a/homeassistant/components/input_number/__init__.py b/homeassistant/components/input_number/__init__.py
index d5fffeba3f9..affad6ca30f 100644
--- a/homeassistant/components/input_number/__init__.py
+++ b/homeassistant/components/input_number/__init__.py
@@ -196,6 +196,22 @@ class NumberStorageCollection(collection.StorageCollection):
         """Suggest an ID based on the config."""
         return info[CONF_NAME]
 
+    async def _async_load_data(self) -> dict | None:
+        """Load the data.
+
+        A past bug caused frontend to add initial value to all input numbers.
+        This drops that.
+        """
+        data = await super()._async_load_data()
+
+        if data is None:
+            return data
+
+        for number in data["items"]:
+            number.pop(CONF_INITIAL, None)
+
+        return data
+
     async def _update_data(self, data: dict, update_data: dict) -> dict:
         """Return a new updated data object."""
         update_data = self.UPDATE_SCHEMA(update_data)
diff --git a/tests/components/input_number/test_init.py b/tests/components/input_number/test_init.py
index 4149627720b..bec05d3f344 100644
--- a/tests/components/input_number/test_init.py
+++ b/tests/components/input_number/test_init.py
@@ -416,7 +416,7 @@ async def test_load_from_storage(hass, storage_setup):
     """Test set up from storage."""
     assert await storage_setup()
     state = hass.states.get(f"{DOMAIN}.from_storage")
-    assert float(state.state) == 10
+    assert float(state.state) == 0  # initial is not supported when loading from storage
     assert state.attributes.get(ATTR_FRIENDLY_NAME) == "from storage"
     assert state.attributes.get(ATTR_EDITABLE)
 
@@ -438,7 +438,7 @@ async def test_editable_state_attribute(hass, storage_setup):
     )
 
     state = hass.states.get(f"{DOMAIN}.from_storage")
-    assert float(state.state) == 10
+    assert float(state.state) == 0
     assert state.attributes.get(ATTR_FRIENDLY_NAME) == "from storage"
     assert state.attributes.get(ATTR_EDITABLE)