Plain-language definition
An overage charge is an extra amount billed when usage goes beyond what your plan or allowance includes.
Why it appears on a bill
It appears on bills for services with usage limits, such as data, minutes, utility consumption tiers, or other metered activity.
What to check
- Find the included allowance for your plan.
- Compare the billed usage against your usage summary.
- Check the per-unit overage rate.
- Look for alerts, caps, or plan changes that should have affected the charge.