The paper argues that the achievement of sustainability of public debt requiring the fulfillment of solvency and liquidity conditions in countries for which real interest rates are above the real growth rates is challenging and difficult. Since solvency is a rather complex concept and its governance is difficult and delicate, the paper maintains that such countries could try to achieve the sustainability of public debt by delegating the tasks of securing the observance of solvency and liquidity conditions to fiscal councils (FC) that need to be formed as autonomous public institutions with sufficient financial and technical resources. In Turkey FC needs to be assigned the further task of improving policymakers’ incentives to opt for sound government procurement and taxation policies that would lead to the achievement of efficient allocation of resources and elimination of corruption and nepotism in the economy.