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For taxpayers who are part of the lump-sum system, the submission dates for personal income tax differ from those for other taxpayers.

In 2026, car taxation will become stricter. The tax deductibility of petrol and diesel vehicles will continue to gradually decrease. New vehicles with a combustion engine will no longer be deductible at all. Additionally, car expenses for npa (non profit association) will become taxable. Discover the impacts on your organisation.

As of 1st January 2026, the Walloon Government is conducting a thorough review of the SESAM system. This reform is part of a wider effort to improve employment aids, focusing on better supporting those who are furthest from the labour market.