Why Is My AWS Bill So High Suddenly? A 2026 Triage Playbook
A field-tested triage recipe for when your AWS bill doubles overnight: how I drill into Cost Explorer in under ten minutes and the six usage patterns I always check first.
Priya spent four years at Vantage building cost-allocation tooling for AWS customers, then two years at HashiCorp on the FinOps side of Terraform Cloud billing. Before that she was a backend engineer at Twilio, where she rewrote the internal usage-metering pipeline that powered SMS billing for roughly 1.4 billion messages a day. She holds AWS Solutions Architect Professional and the FinOps Certified Practitioner credentials, and contributes irregularly to the OpenCost project. Her current obsession is Savings Plans portfolio math: she keeps a spreadsheet at home that models the break-even point between 1-year no-upfront and 3-year all-upfront commitments across 11 EC2 families. Priya writes mostly about EC2 rightsizing, S3 storage-class transitions, and the unglamorous work of tagging governance. She lives in Austin and is slowly losing a fight with her landlord over a second monitor stand.
A field-tested triage recipe for when your AWS bill doubles overnight: how I drill into Cost Explorer in under ten minutes and the six usage patterns I always check first.
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