Office 2019 Mac restricted mode: here's what's behind it

The Office 2019 Mac restricted mode describes the reduced state into which Word, Excel, PowerPoint and Outlook switch from 13 July 2026. The apps still launch and open your documents, but editing and saving are then no longer possible. So you can only view and print files. On this page you'll learn exactly what works in this mode and what doesn't, why Microsoft is introducing this restriction and how you can work without restrictions again.

What does restricted mode mean specifically?

Restricted mode means: the Office apps still open and display your content, but they no longer let you change anything. You're effectively working in a read-only state. This affects all four main apps of Office 2019 for Mac equally. Existing files are not lost in the process; they stay unchanged on your device.

Why does Office 2019 switch into this mode?

The background is an expiring code-signing certificate. With this certificate, Microsoft confirms that the Office apps are genuine and unaltered. It is not being renewed for Office 2019 for Mac and loses its validity on 13 July 2026. After that, macOS no longer recognises the write functions as signed, and Office turns them off. This has nothing to do with your licence, only with the expiry of this certificate.

Is Office 2021 for Mac also affected?

Partly. An un-updated Office 2021 for Mac can also switch into restricted mode, because it uses the same certificate. Anyone who keeps Office 2021 up to date (version 16.83 or newer), on the other hand, is not affected and carries on working normally. For Office 2019 for Mac, however, there is no such update.

• Office 2019 for Mac: restricted mode from 13/07/2026
• Office 2021 for Mac, un-updated: also affected
• Office 2021 for Mac, updated (from 16.83): not affected

Does my perpetual licence expire as a result?

No. A perpetual licence has no expiry date and remains valid permanently. Restricted mode doesn't arise because your licence ends, but because the certificate of the program version expires. Only a Microsoft 365 subscription is locked if it's no longer paid for, but that's a different case here.

How to work without restrictions again

For editing and saving to work permanently on the Mac, you need an Office version with a current certificate. Office 2024 Standard for Mac is the direct solution for this: a one-time purchase as a perpetual licence without a subscription, with Word, Excel, PowerPoint and Outlook in their full feature set. You get the Microsoft-signed version via download and can immediately carry on working normally again.

• One-time purchase as a perpetual licence, no ongoing subscription
• Word, Excel, PowerPoint and Outlook without restriction
• Available instantly via download
• Current certificate, no restricted mode