Why: the goal or problem

Light and heavy customers consume very different resources. Charging both identically may not reflect value or operating cost.

How: work toward a solution

A fictional export tool charges 0.02 per export. Across months with 100, 300 and 600 exports, charges are 2, 6 and 12: total 20. Change month-one usage or add one export to update its charge and the total. Zero usage costs zero here. Taxes, fees and refunds are omitted.

Meter units, then calculate the charge.

Illustrative example

Usage-based billing

Export tool · initial three months: 100 / 300 / 600 exports

Month 1 · 0.02 per export

  1. Month 1: 2.00
  2. Month 2: 300 × 0.02 = 6.00
  3. Month 3: 600 × 0.02 = 12.00
Total20.00

100 × 0.02 + 6.00 + 12.00 = 20.00

Fictional amounts. Taxes, fees and refunds omitted.

A fictional demo within this article. Reset or reload restores its initial state.

What: the concept

Usage-based billing calculates charges from measured consumption. Define the billable unit and collection schedule separately; usage can be billed within a subscription.

Explain metering and budget variability; compare prepaid credits.

Source