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CalDAV in Home Assistant

caldav part of Home Assistant since 0.60

Cloud, polling Set up in the user interface

CalDAV is an official Home Assistant integration for Calendar and To-do list. Works through the manufacturer’s cloud and asks for changes at regular intervals – it depends on the internet connection and the service.

Facts about this integration

Compatible with Home Assistant
yes, official integration
Connection
Cloud, polling – Works through the manufacturer’s cloud and asks for changes at regular intervals – it depends on the internet connection and the service.
Setup
in the user interface
Kind
Online service
Installations
13,154 (1.8 % of the installations that share statistics)
Categories
Calendar, To-do list
Provides
Calendar, To-do list
Python packages
caldav==3.5.0a0, icalendar==6.3.1, vobject==0.9.9

Setup

  1. In Home Assistant open Settings → Devices & services.
  2. Click "Add integration" and search for CalDAV.
  3. Follow the dialog – it asks for everything the integration needs.

Add to my Home Assistant

The link goes through my.home-assistant.io and opens the setup dialog in your own instance – no address of ours is involved.

Known issues and fixes

11 open issues and 6 bug fixes in the last twelve months are recorded for CalDAV in the Home Assistant issue tracker. If something does not work, update first: the most recent fix shipped with Home Assistant 2026.6.0.

Open

  • open Reported problem #159784 since December 26, 2025 · 14 reactions · 25 comments · #159784
  • open Reported problem #156829 since November 18, 2025 · 3 reactions · 7 comments · #156829
  • open Reported problem #185634 since October 10, 2026 · 1 reaction · 2 comments · #185634
  • open Reported problem #185619 since October 10, 2026 · 1 reaction · 2 comments · #185619
  • open Reported problem #170133 since May 8, 2026 · 0 reactions · 12 comments · #170133
  • open Reported problem #179125 since August 14, 2026 · 0 reactions · 8 comments · #179125
  • open Reported problem #181843 since September 10, 2026 · 0 reactions · 5 comments · #181843
  • open Reported problem #172990 since June 4, 2026 · 0 reactions · 4 comments · #172990

Fixed

Source: the issue tracker of Home Assistant, as of October 27, 2026. The sentences are written by a language model from the titles of the issues; the reports themselves are on GitHub.

Check a specific device for known problems in the product check →

Source of this entry: the official documentation of the integration

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