Did you check the recurrence pattern for the end date? Because it is happening on all devices, it looks like the end date is the problem.
-- Diane
my recurring events for July are showing up on my August calendar, same for subsequent months.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(160, 94%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVR%3C/text%3E%3C/svg%3E)
Vincent Rykes
40
Reputation points
my recurring events for July are showing up on my August calendar, same for subsequent months. Same problem on my other apple devices
Outlook | MacOS | New Outlook for Mac | For home
{count} votes
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Justin Zylstra 0 Reputation points2025-08-04T20:22:13.03+00:00 I have been having the same issues for about a week now. It is all my annually reccuring events. It happens on my mac when running the new outlook for mac. If i run Legacy Outlook or go to the web interface there is no issue. Have the same issues on my iPhone with the outlook app, but not the built in iphone calendar app
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(294.40000000000003, 99%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGR%3C/text%3E%3C/svg%3E)
Gage Regier 0 Reputation points2025-08-11T13:30:59.1533333+00:00 I have had the exact same issue, have not been able to figure it out no matter what I try
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Vincent Rykes 40 Reputation points
2025-09-02T12:44:43.7966667+00:00 Has anyone been able to resolve above issue
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(64, 74%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERH%3C/text%3E%3C/svg%3E)
Roan Heemstra 0 Reputation points2025-09-11T18:13:17.74+00:00 Having the same issue here, it's fine on Outlook for Android and Web. I only have this on MacOS. Date is set correctly, repeat is set to yearly in my case. Recurring events from September are showing in October. I do not have this issue in Outlook Classic
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Kurt Fimmers 10 Reputation points2025-09-13T15:32:04.2966667+00:00 I have exact the same issue. Reminder Yearly recurring for Wedding anniversary shows in the wrong month. It is correct the native macOS calendar and in Outlook OWA. The same appointment dialog shows two different months as well, which is clearly a bug...
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(256, 98%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJ0%3C/text%3E%3C/svg%3E)
Jaison-0230 5 Reputation points2025-09-14T13:17:12.79+00:00 I've encountered the same issue on both the MacOS and iOS Outlook apps - the Web version works fine. The recurrence is set to repeat yearly, but the actual event on the calendar shows up one month off. This problem has nothing to do with how the end date is set.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(48, 63%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESG%3C/text%3E%3C/svg%3E)
Simon Grossmann 5 Reputation points2025-09-16T12:20:57.03+00:00 I have the same issue since today. Updated my Mac to macOS Tahoe yesterday evening and updated Outlook to Version 16.100.4 (25090553) today. Since then, it shows yearly recurring events exactly one month late.
For example: New Year
The bug only occurs on the macOS client. The events show up on the right day in the browser. Has anyone been able to solve this issue? It seems to be a macOS client issue only. It also seems to be only a displaying issue.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(38.4, 46%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMG%3C/text%3E%3C/svg%3E)
Michele Genna (mgenna) 0 Reputation points2025-10-17T10:49:19.52+00:00 Same issue .. I realized I had it only the second time I wished a friends happy birthday a month later :-( it seems to be limited only to Yearly recurring Reminder .. but anything resolved the issue
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(243.2, 45%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EML%3C/text%3E%3C/svg%3E)
Marco Lang 0 Reputation points2025-11-26T15:05:05.0233333+00:00 Anybody found a solution for this by any chance?
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(291.2, 90%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESN%3C/text%3E%3C/svg%3E)
Samuel Nieves (he/him) 0 Reputation points2026-01-21T19:05:10.87+00:00 Same issue, mac only.
Once I changed my Feb 6 event to yearly, it now shows up on March 6, but only on the mac. The iOS version shows the date Feb 6 as it should. I reset the reset the local exchange account, and I deleted the Outlook 15 Profiles folder. Nothing changes the issue that I can find
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4 answers
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Diane P 8,085 Reputation points Independent Advisor2025-08-01T15:48:09.1+00:00 -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(224.00000000000003, 30%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAP%3C/text%3E%3C/svg%3E)
Alison Pickering 0 Reputation points2026-03-03T21:20:31.3066667+00:00 This did it so far! Thank you!
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Michele Genna (mgenna) 0 Reputation points
2026-02-06T11:16:02.3933333+00:00 I was able to resolve the issue!
Please note that in my Outlook Web Calendar my yearly recurring events were correct!
I resolved switching back to the "Legacy Outlook" for Mac interface.
- Open New Outlook on Mac.
- Click on "Help" in the top menu bar.
- Select "Revert to Legacy Outlook" (or similar option).
- Outlook will restart in the Classic version downloading all the contents/events/mails from server
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Bob Jones AKA CyberTaz MVP 433.3K Reputation points2025-08-01T19:15:58.9166667+00:00 Also confirm that the repeat isn't set to Monthly.
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Mr White 100 Reputation points2025-08-01T16:11:44.75+00:00 Check Outlook Web to identify where the issue belongs to