Running out of Google Drive space for your Home Assistant backups? Tired of paying £11/month for extra google storage? This complete OneDrive for Business setup guide is designed to help you integrate Microsoft’s cloud storage solution with your Home Assistant, providing a reliable and secure backup solution for your home automation system.
If you’re experiencing issues with Google Drive backup or looking for an alternative cloud storage option, this tutorial will walk you through the process of setting up OneDrive for Business with Home Assistant, including app registration with Microsoft Entra and configuring secrets for secure backup.
By following this step-by-step guide, you’ll be able to leverage the benefits of OneDrive integration and enjoy a seamless cloud backup experience for your Home Assistant, ensuring your home automation data is safe and easily accessible.
With the latest Home Assistant March 2026 release, it’s essential to have a robust cloud storage solution in place, and this video will show you how to achieve that with OneDrive for Business, providing a comprehensive storage solution for your home automation needs and giving you peace of mind with regular backup tests and a reliable cloud storage system. By the end of this video, you’ll have a fully functional OneDrive for Business setup for your Home Assistant, complete with Microsoft Entra app setup and configuration, allowing you to focus on what matters most – enjoying your smart home with the confidence of knowing your data is securely backed up in the cloud.
In this video, I walk through how to back up Home Assistant to OneDrive for Business, now supported as of the March 2026 release. Backups are so important – If things go wrong, they are what you fall back on You should always try to keep a backup in a remote location I show the full setup process:
• Creating a folder in OneDrive
• Registering an app in Microsoft Entra
• Setting up permissions and secrets
• Connecting OneDrive to Home Assistant
• Switching off Google Drive backups
• Running a manual backup to test it
This guide is perfect if you already have a OneDrive for Business account and want to avoid paying for extra cloud storage. I also explain the difference between client ID, application ID, and secret values — and how to avoid common setup mistakes.