Belgium: Portal for DTT and IIR returns and notification of general representative opened on July 1, 2026
DTT and IIR returns are due September 30, 2026
The portal for submission of domestic top-up tax (DTT) and income inclusion rule (IIR) returns, as well as notifications of the general representative, opened on July 1, 2026.
The deadline for submission of the DTT and IIR returns is September 30, 2026.
Read a July 2026 report prepared by the KPMG member firm in Belgium