  A formula to evaluate the effects of a general deformation on the Coulomb
direct contribution to the energy of the Isobaric Analog State (IAS) is
presented and studied via a simple yet physical model. The toy model gives a
reasonable account of microscopic deformed Hartree-Fock-Bogolyubov (HFB)
calculations in a test case, and provides a guidance when predicting unknown
IAS energies. Thus, deformed HFB calculations, to predict the IAS energies, are
performed for several neutron-deficient medium-mass and heavy nuclei which are
now planned to be studied experimentally.
