  We study the impact of the inverse seesaw mechanism on several low-energy
flavour violating observables such as tau decaying to three muons in the
context of the Minimal Supersymmetric Standard Model. As a consequence of the
inverse seesaw, the contributions of the right-handed sneutrinos significantly
enhance the Higgs-mediated penguin diagrams. We find that different flavour
violating branching ratios can be enhanced by as much as two orders of
magnitude. We also comment on the impact of the Higgs-mediated processes on the
leptonic B-meson decays and on the Higgs flavour violating decays.
