The OECD widely published yearbook Taxing Wages presents data on high labour taxation in Czechia – in comparison with the average of OECD countries. It is not a reliable information because data about more countries are distorted by not including contributions to compulsory or high coverage private social security. The OECD knows it very well because they publish in their websites also the rates of the compulsory contributions for this protection under the title „non-tax compulsory payments“ and the total of these payments with the tax rates. If we consider all (hard or soft) compulsory payments, including e.g. the US compulsory health insurance, the UK workplace pensions and NZ KiwiSaver, then we conclude that the Czech labour taxation is under the average. It is not important that the employer contributions are high in our country and that the low employee contributions may be merged with the personal income tax. The payment of contributions by employers is a rational solution under the given circumstances.