High quality single crystals of SmCu₆In₆ were obtained from the reactions run in excess liquid indium and characterized by means of single crystal X-ray diffraction data. SmCu₆In₆ crystallizes in the YCu₆In₆ structure type, tetragonal space group $I4/mmm$ and lattice constants are 𝑎 = 𝑏 = 9.2036$(3) Å and 𝑐 = 5.4232(3) Å. SmCu$_{6−x}$In$_{6+x}$ (𝑥 = 0, 1, 2) compounds were obtained using arc melting and characterized using powder X-ray diffraction. Magnetic susceptibility data follow modified Curie-Weiss law behaviour above 50K and the experimentally measured magnetic moment values in SmCu₄In₈, SmCu₅In₇ and SmCu₆In₆ are 0.83 $\mu_B$, 1.45 $\mu_B$ and 0.90 $\mu_B$ per Sm atom, respectively. SmCu₅In₇ and SmCu₆In₆ compounds show antiferromagnetic ordering at $T_N = 7.8$ K, and no magnetic ordering was observed for SmCu₄In₈ down to 2 K. Electrical resistivity measurements show that all compounds are of metallic nature.