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title: "Charging for Metered or Estimated Usage"
canonical: "https://docs.rubiconwater.com/space/BNC/1990198094/Charging%20for%20Metered%20or%20Estimated%20Usage"
format: markdown
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You can charge for both metered usage at an authorisation and for usage estimated from order data. The second option is useful if you do not meter the water supplied to your outlets.

- To charge based on metered usage, set up a calculated charge on the Authorisation object and choose the **Actual Usage** attribute when you are specifying an *Attribute Type* for the charge.
- To charge based on estimated usage from order data, set up a calculated charge on the Authorisation object and choose the **Estimated Usage** attribute when you are specifying an *Attribute Type* for the charge.

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