Home Processes Getting a tax deduction on investments that were made to save energy within your company

Getting a tax deduction on investments that were made to save energy within your company

Summary

If you have invested in energy saving as part of a construction or expansion project, a portion of this investment can be deducted from your taxes.
This deduction applies if the investment you have made is part of the eligible investment categories (limiting energy losses, recovering residual heat, producing energy from renewable energy sources, etc.).

Key points

•    Your company must be located in Wallonia.
•    Your application must be made within three months of the end of the fiscal year during which the investment was made.
•    When should the application be made? After the works

In detail

Contacts

Services

SPW Energie - Direction de la Promotion de l'Energie Durable

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Updated on 22/04/2026
Process n° : 1563
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Processes Stakeholders and Institutions Style guide Public service of Wallonia Parliament of Wallonia Géoportal Wallex Walloon public markets Budget