Taxing Wages provides unique information on income tax paid by workers and on social security contributions levied upon employees and their employers in OECD countries. In addition, this annual publication specificies family benefits paid as cash transfers. Amounts of taxes and benefits are detailed program by program, for eight household types which differ by income level and household composition. Results reported include the marginal and effective tax burden for one- and two-earner families and total labor costs of employers. These data on tax burdens and cash benefits are widely used in academic research and in the preparation and evaluation of social and economic policy making. Taxing Wages 2011 includes a special feature entitled "Trends in personal income tax and social security contribution schedules."