Deleted Reminders Won't Leave Calendar: The Real Fix
Deleted reminders won't leave Calendar is a sync mismatch where Calendar still shows reminders the local Reminders app marks gone, fixed by toggling iCloud Reminders or rebuilding Calendar cache. The most common fix takes 90 seconds. The deeper fix takes 15 minutes. The nuclear fix is a full iCloud Reminders reset, which works but should be the last move.
Last Tuesday I deleted four old recurring reminders from a Mac. They were gone in Reminders.app. Still showing in Calendar.app for two weeks after. Same iCloud account. Same machine. Apple's docs said "should sync within minutes". My experience said otherwise. As of May 2026 on macOS 26.1, here's the real fix list.
What's happening
Apple Calendar can pull reminders into the Today view as a courtesy. The integration is one-way: Calendar reads from Reminders, but doesn't always know when something gets deleted on the Reminders side.
When you delete a reminder, Reminders tells iCloud. iCloud usually pushes the change to Calendar's reminder cache. Sometimes the push fails or arrives out of order. The local Reminders database says "gone", the local Calendar reminder cache says "still here". Calendar happily shows you the ghost.
This is a documented sync issue, not user error. Apple has shipped partial fixes through iOS 17.5, 18.0, and 26.0 but the bug recurs in edge cases (heavy iCloud usage, multiple devices, recurring reminders with end dates that already passed).
For the broader sync problem set, Apple Reminders Not Syncing Between iPhone and Mac: 14 Fixes covers the parent issue.
Quick fixes
Try these in order. Most cases resolve at fix #1 or #2.
1. Force-quit Calendar and reopen
90% of cases. The Calendar app caches reminders in memory and doesn't always refresh when iCloud updates. Force-quit clears the cache.
Mac: Cmd-Option-Esc, pick Calendar, Force Quit. Reopen Calendar. iPhone/iPad: Swipe up to app switcher, swipe Calendar away, reopen.
Wait 30 seconds. Look for the deleted reminders. Often they're gone immediately.
2. Toggle iCloud Reminders off and back on
Forces a full re-sync of the Reminders database with iCloud, which usually clears stale Calendar references.
Mac: System Settings > [your name] > iCloud > See All > Reminders > Off. Confirm "Keep on this Mac". Wait 30 seconds. Toggle back On. iPhone/iPad: Settings > [your name] > iCloud > Reminders > Off. Same prompt. Wait 30 seconds. Back on.
Wait 1-2 minutes for sync. Reopen Calendar. Check if ghosts are gone.
3. Restart the device
The iCloud reminder agent (remindd on Mac, RemindersDaemon on iOS) sometimes hangs. A restart kicks it.
Mac: Apple menu > Restart. iPhone/iPad: hold side + volume button, slide to power off, wait 10 seconds, power back on.
After restart, open Reminders first to confirm deleted items are still gone. Then open Calendar.
4. Sign out and back in to iCloud
Heavier than #2. Logs you out of iCloud entirely on this device, then back in, forcing every iCloud-backed app (Reminders, Calendar, Notes, Photos cache) to rebuild local state.
Mac: System Settings > [your name] > Sign Out. iPhone: Settings > [your name] > Sign Out (scroll to bottom).
Sign back in. Wait for sync to finish (can take 5-30 minutes for a heavy account). Open Calendar.
This works for most stubborn cases. If it doesn't, move to deep fixes.
5. Clear Calendar agent cache (Mac only)
Calendar on Mac has a local cache that can desync. Manual clear:
Quit Calendar.app entirely (Cmd-Q).
Open Finder, hit Cmd-Shift-G (Go to Folder).
Paste: ~/Library/Calendars/
You'll see a folder with sub-folders for each calendar account. Don't delete the folders themselves, but you can delete the .cache files inside if you see them. Calendar rebuilds them on next launch.
If you're nervous about Library file editing, skip this and go to fix #6.
6. Uncheck Calendar's reminders integration
If the ghosts won't leave and you don't desperately need reminders inside Calendar:
Open Calendar. View menu (Mac) or Calendars button (iOS). Uncheck "Reminders" or "Show Reminders in Calendar". The ghosts disappear because Calendar stops showing reminders entirely.
Quick win if you don't actually use Calendar's reminder integration. Not a real fix to the underlying sync bug, but eliminates the symptom.
Deep fixes
For the stubborn cases that survive the quick fixes.
1. Rebuild the Reminders database (Mac)
Quit Reminders.app entirely.
Open Terminal. Type: killall remindd
This kills the reminders daemon. macOS auto-restarts it on next Reminders.app launch.
Open Reminders.app. Wait 30-60 seconds for the database to rebuild from iCloud. Open Calendar.
If you have a lot of reminders (1000+) the rebuild can take 5+ minutes. Don't interrupt it.
2. Reset iCloud Reminders sync token
This is heavier. If your local Reminders database has gotten out of sync with iCloud's authoritative copy, you can force a fresh pull:
iPhone: Settings > [your name] > iCloud > See All > Reminders > Off > "Delete from iPhone". The local data gets nuked. Then toggle back on. Reminders pulls a fresh copy from iCloud.
Mac: same flow in System Settings > iCloud > Reminders > Off > "Remove from Mac".
If iCloud has the correct (deleted) state, this works. If iCloud itself is stale, you need fix #3.
3. Force iCloud to refresh from a clean device
If iCloud's authoritative state is also stale, you need to push a clean state from one device to iCloud, then let the others pull.
Pick the device where Reminders shows the correct (no ghosts) state. On that device, edit any reminder (change a title, add a note). This triggers a write to iCloud. iCloud should push the corrected state to all other devices.
This sounds janky and it is. But it works in maybe 1 in 8 cases when nothing else does.
4. Disable, fully re-enable, and resync
Go scorched earth on iCloud Reminders:
- On every device, turn off iCloud Reminders.
- Wait 5 minutes.
- Turn iCloud Reminders back on, on one device only (your most-used Mac, ideally).
- Wait for that device to push its full Reminders state to iCloud.
- Turn iCloud Reminders on, on the other devices, one at a time.
This is a 30-minute exercise. It works. It's also the kind of thing you only do once.
When nothing works
If you've tried every fix and ghost reminders still haunt Calendar, three options.
1. File a Feedback Assistant report. Apple actually reads these. feedbackassistant.apple.com or the Feedback Assistant app on Mac/iPhone. Include screen recordings of the bug, system info (Apple menu > About This Mac), and a clear repro if you have one. Cite this exact bug pattern: deleted reminders persisting in Calendar after Reminders shows gone.
2. Switch to a different reminder integration. If you live in Calendar, tools like Fantastical have their own reminder views with their own sync paths. Sometimes a third-party Calendar.app replacement clears the symptom by maintaining its own cache.
3. Use Ultra Reminders as a bridge. Ultra Reminders reads from Apple Reminders via EventKit and maintains its own deterministic local state. If your Apple Reminders database is fundamentally clean (you can verify in Reminders.app) but Calendar shows ghosts, Ultra Reminders will show the clean state. It doesn't fix Apple's sync bug, but it gives you a parallel view that isn't broken.
For related issues that often coexist, see Reminders App Slow on Mac: Speed It Back Up, Reminder Widget Not Showing on iPhone, and Why Your Reminder Marks Itself Incomplete.
The full system context is at The Definitive Guide to Apple Reminders in 2026.
"I had a deleted recurring reminder from June 2024 still showing in Calendar in March 2026. Two iOS versions and a full iCloud reset later, it finally went away. Apple, please."
Source: paraphrased from r/AppleHelp, March 2026
"Force-quit Calendar fixed it for me. Took 5 seconds. Wish I'd tried that before reading 47 forum posts."
Source: paraphrased from r/iOS, February 2026
FAQ
Q: Why does Calendar show reminders at all?
A: Apple integrated reminders into Calendar's Today view as a convenience. The idea is to see your events and reminders for the day in one place. The implementation has been buggy since iOS 13 and the deleted-but-still-showing variant is one of the longest-running sync issues.
Q: Will toggling iCloud Reminders off lose my data?
A: When you turn off iCloud Reminders on a device, you get a prompt: "Keep on this Mac" or "Delete from this Mac". Pick "Keep" to preserve a local copy. Pick "Delete" only if you want a clean re-pull from iCloud (which will re-download everything iCloud has).
Q: How long before iCloud sync is supposed to propagate a deletion?
A: Apple says "within minutes". Real-world: usually under 60 seconds, sometimes 5-15 minutes during heavy iCloud server load. If something hasn't propagated after 30 minutes, you have a sync issue, not a delay.
Q: Does this happen on iPhone too or just Mac?
A: Both. The bug is iCloud-side, so any device showing Calendar can show the ghost reminders. Most reports are on Mac because the Calendar Today view is more prominent there, but iPhone Calendar also shows ghosts in the same scenarios.
Q: Can I prevent this in the future?
A: Mostly no. The bug happens when iCloud's sync flow has a hiccup, which you can't predict. What helps: don't keep ten thousand reminders, don't have ten devices on the same iCloud account if you can help it, and avoid heavy bulk-deletes (delete in batches of 50 instead of 500 at once).
Ultra Reminders solves deleted tasks that actually disappear from Calendar instead of haunting it. Free 14-day trial at ultrareminders.com.