The Role and Design of Net Wealth Taxes in the OECD
This report examines and assesses the current and historical use of net wealth taxes, defined as recurrent taxes on individual net assets, in OECD countries. It provides background on the use of wealth taxes over time in OECD countries as well as on trends in income and wealth inequality. It then assesses the case for and against the use of a net wealth tax to raise revenues and reduce inequality, based on efficiency, equity and tax administration considerations. The effects of personal capital income taxes and taxes on wealth transfers are also discussed to understand how these taxes interact with net wealth taxes. Finally, the report looks at practical tax design issues and shows that the way a net wealth tax is designed can have a significant impact on the effectiveness and fairness of the tax. The report concludes with a number of practical tax policy recommendations regarding net wealth taxes.
Executive summary
Net wealth taxes are far less widespread than they used to be in the OECD but there has recently been a renewed interest in wealth taxation. While 12 countries had net wealth taxes in 1990, there were only four OECD countries that still levied recurrent taxes on individuals’ net wealth in 2017. Decisions to repeal net wealth taxes have often been justified by efficiency and administrative concerns and by the observation that net wealth taxes have frequently failed to meet their redistributive goals. The revenues collected from net wealth taxes have also, with a few exceptions, been very low. More recently, however, some countries have shown a renewed interest in net wealth taxes as a way to raise revenues and address wealth inequality.