diff --git a/homeassistant/components/google/__init__.py b/homeassistant/components/google/__init__.py
index c4e51739efd..bc5e814b24d 100644
--- a/homeassistant/components/google/__init__.py
+++ b/homeassistant/components/google/__init__.py
@@ -11,7 +11,6 @@ from gcal_sync.api import GoogleCalendarService
 from gcal_sync.exceptions import ApiException, AuthException
 from gcal_sync.model import DateOrDatetime, Event
 import voluptuous as vol
-from voluptuous.error import Error as VoluptuousError
 import yaml
 
 from homeassistant.config_entries import ConfigEntry
@@ -143,6 +142,14 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     hass.data.setdefault(DOMAIN, {})
     hass.data[DOMAIN][entry.entry_id] = {}
 
+    # Validate google_calendars.yaml (if present) as soon as possible to return
+    # helpful error messages.
+    try:
+        await hass.async_add_executor_job(load_config, hass.config.path(YAML_DEVICES))
+    except vol.Invalid as err:
+        _LOGGER.error("Configuration error in %s: %s", YAML_DEVICES, str(err))
+        return False
+
     implementation = (
         await config_entry_oauth2_flow.async_get_config_entry_implementation(
             hass, entry
@@ -322,11 +329,7 @@ def load_config(path: str) -> dict[str, Any]:
         with open(path, encoding="utf8") as file:
             data = yaml.safe_load(file)
             for calendar in data:
-                try:
-                    calendars.update({calendar[CONF_CAL_ID]: DEVICE_SCHEMA(calendar)})
-                except VoluptuousError as exception:
-                    # keep going
-                    _LOGGER.warning("Calendar Invalid Data: %s", exception)
+                calendars[calendar[CONF_CAL_ID]] = DEVICE_SCHEMA(calendar)
     except FileNotFoundError as err:
         _LOGGER.debug("Error reading calendar configuration: %s", err)
         # When YAML file could not be loaded/did not contain a dict
diff --git a/tests/components/google/test_init.py b/tests/components/google/test_init.py
index 4bd09a5f49b..452b2300e5b 100644
--- a/tests/components/google/test_init.py
+++ b/tests/components/google/test_init.py
@@ -152,11 +152,12 @@ async def test_calendar_yaml_missing_required_fields(
     component_setup: ComponentSetup,
     calendars_config: list[dict[str, Any]],
     mock_calendars_yaml: None,
+    config_entry: MockConfigEntry,
 ) -> None:
     """Test setup with a missing schema fields, ignores the error and continues."""
-    assert await component_setup()
+    assert not await component_setup()
 
-    assert not hass.states.get(TEST_YAML_ENTITY)
+    assert config_entry.state is ConfigEntryState.SETUP_ERROR
 
 
 @pytest.mark.parametrize("calendars_config", [[{"missing-cal_id": "invalid-schema"}]])
@@ -165,23 +166,12 @@ async def test_invalid_calendar_yaml(
     component_setup: ComponentSetup,
     calendars_config: list[dict[str, Any]],
     mock_calendars_yaml: None,
-    mock_calendars_list: ApiResult,
-    test_api_calendar: dict[str, Any],
-    mock_events_list: ApiResult,
+    config_entry: MockConfigEntry,
 ) -> None:
     """Test setup with missing entity id fields fails to load the platform."""
-    mock_calendars_list({"items": [test_api_calendar]})
-    mock_events_list({})
+    assert not await component_setup()
 
-    assert await component_setup()
-
-    entries = hass.config_entries.async_entries(DOMAIN)
-    assert len(entries) == 1
-    entry = entries[0]
-    assert entry.state is ConfigEntryState.LOADED
-
-    assert not hass.states.get(TEST_YAML_ENTITY)
-    assert not hass.states.get(TEST_API_ENTITY)
+    assert config_entry.state is ConfigEntryState.SETUP_ERROR
 
 
 async def test_calendar_yaml_error(