Impulsion 55+: Closure and ONSS Transition
The Walloon reduction for older workers is closed to new hires since July 1, 2026. Prior rights may persist, under conditions, until December 31, 2029 at the latest.
ONSS Instructions 2026/3 concern units of establishment in the Walloon Region, excluding the German-speaking Community. No new entrant is admitted from the third quarter of 2026 for reduction codes 8320, 8321 and 8322.
For prior files, distinguish between hiring dates and opening dates of entitlement. ONSS indicates a minimum age of 57 years for hires from April 1, 2026 under code 8321. Salary ceilings and transitional rules must be verified in the instruction corresponding to the quarter declared.
The page signals an interim instruction of September 10, 2026. Entrust the payroll manager with verifying this update and the continuity of entitlement before DmfA. Do not promise a reduction based solely on the candidate's age.