Calendar notifications not working on Mac

I have been using the Apple calendar on Mac for years to get notifications to pay bills and appointments. I am no longer getting notifications. I checked and everything is turned on to get them.



[Re-Titled by Moderator]

Original Title: Calendar notifications not working

iMac 27″, macOS 15.7

Posted on Jun 26, 2026 7:16 AM

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Question marked as Top-ranking reply

Posted on Jun 26, 2026 11:55 PM

Hi blondiejune, sorry to hear your Calendar notifications have stopped — this is a common issue that can happen after macOS updates. Even if your notification settings look correct, there are a few deeper places to check:


1. Check Notification Center settings specifically for Calendar:

- Go to System Settings > Notifications > Calendar

- Make sure "Allow Notifications" is ON

- Set the Alert Style to "Alerts" (not "None" or "Banners" that might be easy to miss)

- Also make sure "Play sound for notifications" and "Show in Notification Center" are checked


2. Check Do Not Focus/Focus Mode:

- Make sure Focus Mode is not silencing Calendar alerts

- Go to System Settings > Focus and check if any active Focus is filtering Calendar notifications


3. Check Calendar alert settings:

- Open the Calendar app > Calendar menu > Settings > Alerts

- Make sure default alerts are set for your events (e.g., "15 minutes before" for events)


4. Restart the notification system:

- Open Terminal and run: killall NotificationCenter

- This restarts the notification service without rebooting


5. Check event alerts individually:

- Open a specific event in Calendar and verify it has an alert set (click the event > Edit > Alert)

- Sometimes events lose their alerts after iCloud syncs


6. Reset Calendar permissions:

- Go to System Settings > Privacy & Security > Notifications

- Find Calendar and toggle it off, then back on


7. Reboot your iMac:

- A simple restart resolves notification system issues more often than expected


Hope this gets your reminders working again!

1 reply
Question marked as Top-ranking reply

Jun 26, 2026 11:55 PM in response to blondiejune

Hi blondiejune, sorry to hear your Calendar notifications have stopped — this is a common issue that can happen after macOS updates. Even if your notification settings look correct, there are a few deeper places to check:


1. Check Notification Center settings specifically for Calendar:

- Go to System Settings > Notifications > Calendar

- Make sure "Allow Notifications" is ON

- Set the Alert Style to "Alerts" (not "None" or "Banners" that might be easy to miss)

- Also make sure "Play sound for notifications" and "Show in Notification Center" are checked


2. Check Do Not Focus/Focus Mode:

- Make sure Focus Mode is not silencing Calendar alerts

- Go to System Settings > Focus and check if any active Focus is filtering Calendar notifications


3. Check Calendar alert settings:

- Open the Calendar app > Calendar menu > Settings > Alerts

- Make sure default alerts are set for your events (e.g., "15 minutes before" for events)


4. Restart the notification system:

- Open Terminal and run: killall NotificationCenter

- This restarts the notification service without rebooting


5. Check event alerts individually:

- Open a specific event in Calendar and verify it has an alert set (click the event > Edit > Alert)

- Sometimes events lose their alerts after iCloud syncs


6. Reset Calendar permissions:

- Go to System Settings > Privacy & Security > Notifications

- Find Calendar and toggle it off, then back on


7. Reboot your iMac:

- A simple restart resolves notification system issues more often than expected


Hope this gets your reminders working again!

Calendar notifications not working on Mac

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