How AWS Estimated Billing Went Sideways (Unit Pricing Bugs Explained)
On July 16, 2026 at 7:38 PM PDT, AWS began displaying incorrect estimated billing data in the Billing and Cost Management Console; the root cause was incorrect unit pricing in the estimated billing computation subsystem. AWS paused estimated billing computations and recomputed estimates, expecting multi-hour recovery. ([blog.serverworks.co.jp](https://blog.serverworks.co.jp/aws-cost-billing-issue-