Spin polarization and half metallicity are the basic properties of spin electronics devices. The electronic and magnetic characteristics of the CuHg₂Ti-kind structure Zr₂VIn full Heusler alloy in the bulk and (111), (001) and (110) surfaces are explored using the first-principles investigation based on the density functional theory. The results show that the bulk Zr₂VIn alloy achieves a ferromagnetic half-metallic characteristic with an energy gap of 0.3 eV, while the half-metallic characteristic is destroyed at all surfaces. It is noted that this compound 100% spin polarization at the Fermi level in the spin-up channel. The current communication also reveals that a total magnetic moment of the Zr₂VIn alloy is equal to 2μ_B. The atomic relaxation of (111), (001) and (110) surfaces of the Zr₂VIn compound are also discussed. The Zr(2) atom at (001) surface exhibits the highest spin polarization of 87.79%, a matter that opens the way for several applications related to designing a giant magnetic resistance.