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Community Infrastructure Levy (CIL) calculator

Estimating the amount of CIL that may need to pay.


Use our online CIL calculator


This calculator will give you an indication of the amount of CIL owed on a project, depending on the parameters you supply.

It is not intended as a final representation of your total liability, and does not constitute the CIL determined by the CIL charging authority or legal advice.

You should not rely on the calculator to make decisions which depend on the amount of CIL liability.

As your application progresses, you will be issued a liability notice and demand notice, which will contain the final breakdown of CIL owed on a development. The amount set out in the liability notice and demand notice is the amount you will need to pay.

If you wish to start your development and have not yet received a liability notice, please contact the Development Contributions Team immediately.

Please read our CIL process page for further information on the steps required before starting work.


You can find information about indexation rates on our charging schedule page.

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