  We show how leading radiative corrections can be implemented in the general
description of $h\to 4\ell$ decays by means of Pseudo Observables (PO). With
the inclusion of such corrections, the PO description of $h\to 4\ell$ decays
can be matched to next-to-leading-order electroweak calculations both within
and beyond the Standard Model (SM). In particular, we demonstrate that with the
inclusion of such corrections the complete next-to-leading-order Standard Model
prediction for the $h\to 2e2\mu$ dilepton mass spectrum is recovered within 1%
accuracy. The impact of radiative corrections for non-standard PO is also
briefly discussed.
