We report a comparative study of the anomalous Hall effect (AHE) in single crystals of the two-dimensional van der Waals (vdWs) ferromagnets ${\mathrm{Fe}}_3{\mathrm{GeTe}}_2$ and ${\mathrm{Fe}}_5{\mathrm{GeTe}}_2$, grown by chemical vapor transport, over wide temperature and magnetic-field ranges. From magnetization, longitudinal resistivity ${\rho }_{xx}$, and Hall measurements, we extract the ordinary and anomalous Hall coefficients and scale the anomalous Hall conductivity ${\sigma }_{xy}$ against the longitudinal conductivity ${\sigma }_{xx}$. In ${\mathrm{Fe}}_3{\mathrm{GeTe}}_2, {\sigma }_{xy}$ is nearly independent of ${\sigma }_{xx}$ and scales linearly with magnetization across the entire ordered phase, with the resistivity scaling ${\rho }_{xy}=a{\rho }_{xx}^2+b{\rho }_{xx}$ yielding a negligible linear term; this identifies a predominantly intrinsic, Berry-curvature-driven AHE consistent with its nodal-line electronic structure. ${\mathrm{Fe}}_5{\mathrm{GeTe}}_2$ exhibits a mixed intrinsic and extrinsic anomalous Hall response. Below $T^{*}\approx 100\mathrm{K}$, the scaling analysis reveals a finite skew-scattering contribution, accompanied by a breakdown of the linear ${\sigma }_{xy}\text{−}M$ relationship. In the vicinity of $T^{*}$, we observe a broad maximum in the resistivity, a nonmonotonic evolution of the anomalous Hall resistivity, and a pronounced change in the Hall coefficients, consistent with a temperature-dependent multiband electronic response involving both electron- and holelike contributions. The emergence of a finite topological Hall contribution in the same temperature-field regime is consistent with the development of noncoplanar magnetic textures. These results establish a direct link between sublattice-dependent electronic structure and the intrinsic-to-extrinsic crossover of the AHE in the ${\mathrm{Fe}}_x{\mathrm{GeTe}}_2$ family, with ${\mathrm{Fe}}_3{\mathrm{GeTe}}_2$ representing the intrinsic limit and ${\mathrm{Fe}}_5{\mathrm{GeTe}}_2$ a tunable mixed regime.

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• Anomalous Hall effect
• Berry curvature
• Electrical conductivity
• Electrical properties
• 2-dimensional systems
• van der Waals systems
• Electrical transport techniques