Most companies don't overspend on Azure because they're careless. They overspend because cloud cost is invisible until the bill arrives — and by then the money's already gone.
Here's the uncomfortable part: in most Azure environments, 20–40% of the monthly spend is pure waste. Not "could be optimised someday" — waste, today, that nobody would miss if it vanished.
So where does it actually go?
1. Machines that are too big
Someone spun up a VM "to be safe," picked a size two notches bigger than needed, and moved on. Now it runs at 3% CPU, 24 hours a day, billing full price. Multiply that across an estate and it's the single biggest leak we see.
2. Disks nobody deleted
You delete a VM, but its disk stays behind — unattached, doing nothing, still billing every hour. These "orphaned" disks pile up quietly for months.
3. Backups kept forever
Backup retention gets set once, generously, and never revisited. You end up paying to store snapshots from a year ago that no one will ever restore.
4. Full price when you could commit
If a workload runs steady-state, paying pay-as-you-go is like renting the same hotel room every night for a year instead of just signing a lease. Reserved capacity can cut that 30–60%.
5. Things left running that shouldn't be
Dev environments that don't need to run at night. Test resources from a project that shipped six months ago. Cognitive services with zero API calls, still on the meter.
Why does nobody catch it?
Because it's nobody's job. Engineers are shipping features. Finance sees one big number. And Azure's own tools show you data, not decisions — a wall of metrics, not a prioritised list of "cut this, save that."
The fix isn't complicated. It's just that someone has to actually look — resource by resource — and turn the mess into a plan. That's the entire job.