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Basic SKU Load balancers and Public IP address associated with VM

Shubham Chakraborty 100 Reputation points
2025-09-24T14:18:57.0933333+00:00

Hi Team,

We have load balancers and public ip addresses running on Basic SKU and those are not yet migrated to Standard SKU.

We want to understand the impact, what will happen if those resources are not migrated till 30th Sept 2025. Will Microsoft start the Standard SKU upgrade on the Load balancers and Public IP Address which are associated with VM's only after 30th Sept 2025 from their end or anything else will happen?

Kindly help with the query as the retirement date is approaching and we have more than 100 resources left in Basic SKU that needs to migrate to Standard SKU.

Azure Load Balancer
Azure Load Balancer
An Azure service that delivers high availability and network performance to applications.
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  1. Praveen Bandaru 9,250 Reputation points Microsoft External Staff Moderator
    2025-09-24T15:09:10.6633333+00:00

    Hello Shubham Chakraborty

    I see that you're worried about the upcoming retirement of Basic SKU load balancers and the public IP addresses linked to your VMs.

    If you do not migrate your Basic SKU resources to Standard SKU by September 30, 2025, those resources will be retired. Microsoft will not automatically upgrade your Basic resources to Standard on this date, and you will lose access to them if they are not migrated in time.

    User's image If your Basic SKU Public IP addresses are associated with other services (e.g., Virtual Machines, Load Balancers, or other resource types), they will be impacted. You will need to migrate them to Standard SKU before the retirement date. If these resources are not deployed in Azure Cloud Services (extended support), they will no longer be supported or usable after the retirement date.

    Check the below reference documents:

    https://v4.hkg1.meaqua.org/en-us/answers/questions/5531006/impact-of-basic-load-balancer-and-public-ip-retire

    You should begin the migration process now. Since you still have more than 100 resources, starting early will help prevent any possible service disruptions. Please check the below public document for more understanding migration process.

    Upgrading from Basic Load Balancer - Guidance

    https://v4.hkg1.meaqua.org/en-us/azure/load-balancer/upgrade-basic-standard-with-powershell

    Or alternatively you can create a new Standard Load Balancer with the Basic Load Balancer configurations.

    If you want to use the same public IP, please try to disassociate it from your current basic load balancer. After that, you can upgrade your basic IP to a standard IP assign it to new standard load balancer. And while migrating the public IP basic to standard you must change the IP address assignment dynamic to static.

    Please navigate to the Basic Public IP address -- Settings -- Configuration, select Static, click Save.
    User's image

    Check the below document for more understanding:

    https://v4.hkg1.meaqua.org/en-us/answers/questions/5556867/will-basic-sku-public-ips-attached-to-vms-stop-wor

    Please do not forget to "Accept the answer” and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.   

    User's image

    If you have any other questions or are still running into more issues, let me know in the "comments" and I would be happy to help you.

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