Ensure your Azure Resources are tagged with the Tag from Subscription
In this example we have the following requirements
- The costCentre tag has been manually added to the Subscription
- Every resource must be created with a costCentre
- The CostCentre tag must exist on the resources
- The Resources inherit from the container they are in, but can be manually overridden
Costcentre Tag Configuration
- Modify Resources to add the CostCentre tag from the parent Subscription where missing
Time to assign a new Policy


No Need to select a Resource group because they haven’t been created yet and this applies to all resource groups that have yet to be created

Choose Inherit a tag from the subscription if missing

The Assignment Name has been changed to include the tag

And the tab name is added as a parameter

We need a Managed Identity because this has a modify effect
Then go to Review + Create and Create
Test the New Modify Policy
This is the tag on the Subscription

Create a New Resource Group (And remember to apply any tags of Policies you have already set
Within this Resource Group, Create a New Resource (Dont add the tag)

Once created, the Resource will inherit the Tag from the Subscription