Tags and chargeback reporting standards

Overview

Untagged resources make showback/chargeback impossible and slow incident ownership questions. Enforce tags with policy-as-code, not hallway reminders.

Minimum tag set (example)

Environment, Application, Owner, CostCenter, DataClassification. Adjust for client finance codes.

Implementation

• Azure Policy deploy-if-not-exist or modify for mandatory tags on resource creation.
• AWS Organization tag policies with non-compliant resource reporting.
• Monthly compliance export to the finance partner; exceptions require ticketed approvals.

Reporting

Power BI / Cost Management exports grouped by CostCenter and Application. Highlight shared services (backup vaults, firewalls) with an agreed allocation rule—equal split, percent of VM count, or fixed fee.

Behavior

Tag hygiene is a QBR metric; reward improvement, publish the backlog of stragglers.