We have undertaken a comprehensive study of the K-edge XANES spectra of the metallocorroles of Fe, Mn, and Co employing TDDFT and multireference wavefunctionbased RASSCF/RASPT2/MC-PDFT methods. Within DFT, PBE0 functional combined with def2-TZVP basis set and ZORA relativistic correction yields absolute peak energies that closely match experimental values. However, TDDFT struggles to accurately capture the percentage of non-innocence character of the ligand and fails to account for transitions involving more than singly excited configuration. In contrast, multireference wave-function-based methods, including both static and dynamical correlations, prove to be highly effective. MC-PDFT, a promising alternative to RASPT2 with only marginal computational cost, provides accurate predictions of the K-edge XANES spectra of noninnocent metallocorrole complexes. These methods excel in providing precise percentages of radical character and the oxidation states of the metal and effectively handle cases involving more than singly excited configurations. This pioneering study is the first to examine the XANES spectra of non-innocent metallocorroles, underscoring the significance of these advanced computational tools for investigating similar complexes. The groundbreaking insights gained from this research are poised to guide future XANES calculations for analogous systems, offering a deeper understanding of the electronic intricacies of metallocorroles.