The COVID-19 crisis has evolved into a pandemic. The virus does not only affect health systems, family and social life, and the global economy, but also tax law systems across the world: Various countries have introduced or announced measures in response to the COVID-19 crisis. These measures, which vary in magnitude and scope, are intended to mitigate the economic and fiscal effects on businesses and individuals. Marina Luketina presents the tax measures related to COVID-19 of selected OECD countries heavily affected by the crisis.