Molar excess enthalpies, H-E, at 303.15 K and atmospheric pressure, of n-propyl-, n-butyl-, n-pentyl-, n-octyl- or n-decylamine + toluene, as well as the isothermal vapour-liquid equilibria, VLE, of n-butylamine + toluene and of n-butylamine + benzene at 298.15 K have been determined. These experimental results, along with the data available in the Literature on molar excess Gibbs energies, G(E), activity coefficients at infinite dilution, gamma(i)(infinity), and molar excess enthalpies, H-E, for n-alkylamine + toluene mixtures are examined on the basis of the DISQUAC group contribution model. The modified UNIFAC is also used to describe the mixtures.