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In this first\u2010principles work based on time\u2010dependent density\u2010functional theory, we investigate the structural, electronic, and optical properties of tin\u2010halide molecules SnX<jats:sub>n<\/jats:sub><jats:sup>2\u2212n<\/jats:sup>, with \n and X=Cl, Br, I, simulating these compounds in vacuo as well as in an implicit solvent. We find that structural properties are very sensitive to the halogen species while the charge distribution is also affected by stoichiometry. The ionicity of the Sn\u2212X bond is confirmed by the Bader charge analysis albeit charge displacement plots point to more complex metal\u2010halide coordination. Particular focus is posed on the neutral molecules SnX<jats:sub>2<\/jats:sub>, for which electronic and optical properties are discussed in detail. Band gaps and absorption onset decrease with increasing size of the halogen species, and despite general common features, each molecule displays peculiar optical signatures. 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