diff --git a/containers/backupchecks/src/backend/app/main/routes_settings.py b/containers/backupchecks/src/backend/app/main/routes_settings.py
index 189fa7d..941f368 100644
--- a/containers/backupchecks/src/backend/app/main/routes_settings.py
+++ b/containers/backupchecks/src/backend/app/main/routes_settings.py
@@ -439,7 +439,9 @@ def settings():
             settings.require_daily_dashboard_visit = bool(request.form.get("require_daily_dashboard_visit"))
 
         # Autotask integration
-        if "autotask_enabled" in request.form:
+        # Checkbox: only update when any Autotask field is present (form was submitted)
+        # Unchecked checkboxes are not sent by browsers, so check autotask_form_touched
+        if autotask_form_touched:
             settings.autotask_enabled = bool(request.form.get("autotask_enabled"))
 
         if "autotask_environment" in request.form:
diff --git a/docs/changelog-claude.md b/docs/changelog-claude.md
index d8fe517..695e3b9 100644
--- a/docs/changelog-claude.md
+++ b/docs/changelog-claude.md
@@ -32,6 +32,7 @@ This file documents all changes made to this project via Claude Code.
     - If time entries exist: keeps current status unchanged (ticket remains open)
 
 ### Fixed
+- Autotask integration can now be disabled in Settings after being enabled (fixed unchecked checkbox not being processed)
 - Autotask "Link existing" search box now clears when opening the modal instead of retaining previous search text
 - Autotask customer mapping search box now clears when opening the edit modal instead of retaining previous search text
 - Autotask ticket resolution update now correctly preserves exact field values from GET response in PUT payload.