AWS Billing Glitch Sparks Billion-Dollar Estimates
AI-generated image · US National Wire
A technical error in the AWS Billing Console sent inaccurate, massive cost estimates to users, with some seeing figures in the billions and trillions.
Amazon Web Services (AWS) is working to resolve a bug in its Billing Console that triggered wildly inaccurate estimated billing data for customers. According to reporting from The Register, AWS notified users via its Health Dashboard at 1:33 am Pacific time on Friday, July 17, 2026, that Cost Explorer was reflecting incorrect figures.
Users reported receiving overage emails for staggering amounts. On Reddit and Hacker News, one user who previously spent $0.19 reported an estimate of nearly $2.5 billion, while others cited estimates ranging from $126,000 to $2.5 trillion. One Hacker News user reported an estimate of $1.7 billion despite normal usage being under $5, and another saw a $78 million estimate against an $18 budget threshold.
AWS identified the root cause within 90 minutes, describing it as an "issue with unit pricing within the estimated billing computation subsystem." The company clarified that these figures were estimates and did not reflect actual usage or charges. To prevent further escalation, AWS paused estimated bill updates, meaning inflated figures remained visible but would not increase.
Despite attempts to mitigate the issue—including rolling back a recent change to the billing computation subsystem and attempting to revert to the last known good estimated bill computation—The Register reports that the rollback did not resolve the issue as of the latest update. AWS stated that full resolution would take several hours to recompute the data.