In an overlapping generations model, in which savings and tax evasion are endogenous, tax evasion will have a negative effect on long-term growth if public services are productive inputs for private producers. It is shown in the paper that tax evasion reduces the endogenous growth rate. Moreover; the case of pure public consumption is considered. Growth is then exogenous at the steady state path. It is found out that the effect ofa tax-enforcement parameter change on the longrun equilibrium heavily depends on the intertemporal elasticity of substitution.