Governments generally recover the costs of their investment in tertiary education through higher income tax revenues on higher wages from more highly-skilled workers. The results suggest that the current tertiary education spending mix pays for itself for the government for a typical student at current wage levels and tax rates in the OECD. This with accounting for other benefits such as higher growth, higher employment and higher tax revenue in taxes other than income, so the returns are likely higher for governments. As with the Effective Tax Rates, both Marginal and Average RCRs are modelled, with different returns to skills in each case.