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Parity- and time-reversal-violating nuclear forces induce the P-odd nuclear moments, particularly the nuclear Schiff moments [1]. The octupole deformation in the nucleus implies the presence of a partner state with the same intrinsic structure and angular momentum as the ground state but opposite parity at low excitation energy. Due to a small energy difference between the partner and the ground states, second-order perturbation theory suggests that the main contributions to the laboratory Schiff moments come from the expectation values of the Schiff operator and the PT-violating potential calculated between these two states, with the small energy denominator enhancing the laboratory Schiff moments [2]. A strong correlation between the calculated intrinsic octupole moments of even nuclei and the intrinsic Schiff moments of neighbouring odd nuclei in the light actinide region has been shown in previous nuclear DFT calculations by Dobaczewski et al. [2]. This correlation enabled them to estimate the intrinsic Schiff moments from the measured intrinsic octupole moments via linear regression, thereby reducing their uncertainties. They also conducted a similar analysis to compute the coefficients of the laboratory Schiff moments along with their uncertainties. In the present contribution, following the method described in Ref. [2], we determine the laboratory Schiff moment of Ac-227 [3, 4]. The deformed ground and partner states are obtained from the paired nuclear DFT calculations with broken time-reversal, signature, and parity using seven Skyrme energy density functionals. The uncertainties in the intrinsic and laboratory Schiff moments of Ac-227 are constrained by the measured octupole moment of Ra-226, which is 1080(30) efm^{3} [5]. [1] G. Arrowsmith-Kron et al., Rep. Prog. Phys. 87, 084301 (2024) [2] J. Dobaczewski, J. Engel, M. Kortelainen, and P. Becker, Phys. Rev. Lett. 121, 232501 (2018) [3] M. Athanasakis-Kaklamanakis et al., Nature (2025), in press [4] J. Dobaczewski et al., submitted to Annual Review of Nuclear and Particle Science (2025), arXiv:2511.04632 [5] H. Wollersheim et al., Nucl. Phys. A556, 261 (1993)