Governments have taken remarkable measures during the SARS-CoV-2 pandemic in their efforts to safeguard citizens' health and the economy. As a consequence, public debts have reached unprecedented levels, which will require at some point higher taxes. Ensuring that citizens pay these taxes...

The Government of Colombia imposes a variety of taxes that must be paid by individual wage earners, called in their entirety "social protection contributions". Since 2007 individual payments have been collected using an on-line mechanism. In order to improve compliance, the Government used a...