New extension of the filing deadline for Belgian Pillar Two returns until 30 September 2026
direct taxOn 3 April 2026, an additional extension was granted for the filing of Belgian Pillar Two returns. This concerns both the return relating to the domestic top-up tax (Qualified Domestic Minimum Top-up Tax – QDMTT) and the return relating to the IIR top-up tax (Income Inclusion Rule).
