diff --git a/homeassistant/components/caldav/calendar.py b/homeassistant/components/caldav/calendar.py
index d9ebe8e73fd..fb53947a723 100644
--- a/homeassistant/components/caldav/calendar.py
+++ b/homeassistant/components/caldav/calendar.py
@@ -109,6 +109,7 @@ async def async_setup_platform(
             entity_id = async_generate_entity_id(ENTITY_ID_FORMAT, device_id, hass=hass)
             coordinator = CalDavUpdateCoordinator(
                 hass,
+                None,
                 calendar=calendar,
                 days=days,
                 include_all_day=True,
@@ -126,6 +127,7 @@ async def async_setup_platform(
             entity_id = async_generate_entity_id(ENTITY_ID_FORMAT, device_id, hass=hass)
             coordinator = CalDavUpdateCoordinator(
                 hass,
+                None,
                 calendar=calendar,
                 days=days,
                 include_all_day=False,
@@ -152,6 +154,7 @@ async def async_setup_entry(
                 async_generate_entity_id(ENTITY_ID_FORMAT, calendar.name, hass=hass),
                 CalDavUpdateCoordinator(
                     hass,
+                    entry,
                     calendar=calendar,
                     days=CONFIG_ENTRY_DEFAULT_DAYS,
                     include_all_day=True,
@@ -204,7 +207,8 @@ class WebDavCalendarEntity(CoordinatorEntity[CalDavUpdateCoordinator], CalendarE
         if self._supports_offset:
             self._attr_extra_state_attributes = {
                 "offset_reached": is_offset_reached(
-                    self._event.start_datetime_local, self.coordinator.offset
+                    self._event.start_datetime_local,
+                    self.coordinator.offset,  # type: ignore[arg-type]
                 )
                 if self._event
                 else False
diff --git a/homeassistant/components/caldav/coordinator.py b/homeassistant/components/caldav/coordinator.py
index 3a10b567167..eb09e3f5452 100644
--- a/homeassistant/components/caldav/coordinator.py
+++ b/homeassistant/components/caldav/coordinator.py
@@ -6,6 +6,9 @@ from datetime import date, datetime, time, timedelta
 from functools import partial
 import logging
 import re
+from typing import TYPE_CHECKING
+
+import caldav
 
 from homeassistant.components.calendar import CalendarEvent, extract_offset
 from homeassistant.core import HomeAssistant
@@ -14,6 +17,9 @@ from homeassistant.util import dt as dt_util
 
 from .api import get_attr_value
 
+if TYPE_CHECKING:
+    from . import CalDavConfigEntry
+
 _LOGGER = logging.getLogger(__name__)
 
 MIN_TIME_BETWEEN_UPDATES = timedelta(minutes=15)
@@ -23,11 +29,20 @@ OFFSET = "!!"
 class CalDavUpdateCoordinator(DataUpdateCoordinator[CalendarEvent | None]):
     """Class to utilize the calendar dav client object to get next event."""
 
-    def __init__(self, hass, calendar, days, include_all_day, search):
+    def __init__(
+        self,
+        hass: HomeAssistant,
+        entry: CalDavConfigEntry | None,
+        calendar: caldav.Calendar,
+        days: int,
+        include_all_day: bool,
+        search: str | None,
+    ) -> None:
         """Set up how we are going to search the WebDav calendar."""
         super().__init__(
             hass,
             _LOGGER,
+            config_entry=entry,
             name=f"CalDAV {calendar.name}",
             update_interval=MIN_TIME_BETWEEN_UPDATES,
         )
@@ -35,7 +50,7 @@ class CalDavUpdateCoordinator(DataUpdateCoordinator[CalendarEvent | None]):
         self.days = days
         self.include_all_day = include_all_day
         self.search = search
-        self.offset = None
+        self.offset: timedelta | None = None
 
     async def async_get_events(
         self, hass: HomeAssistant, start_date: datetime, end_date: datetime
@@ -109,7 +124,7 @@ class CalDavUpdateCoordinator(DataUpdateCoordinator[CalendarEvent | None]):
                     _start_of_tomorrow = start_of_tomorrow
                 if _start_of_today <= start_dt < _start_of_tomorrow:
                     new_event = event.copy()
-                    new_vevent = new_event.instance.vevent
+                    new_vevent = new_event.instance.vevent  # type: ignore[attr-defined]
                     if hasattr(new_vevent, "dtend"):
                         dur = new_vevent.dtend.value - new_vevent.dtstart.value
                         new_vevent.dtend.value = start_dt + dur