A day-fine is a pecuniary sanction that systematically accounts for the severity of the offense and the wealth of the offender. The number of days expresses the severity of the offense, and the daily unit reflects the income or the wealth of the offender. This way fines impose equal relative burden on all offenders regardless of their wealth. To read more about this model of fines, see my paper "Day Fines: Reviving the Idea and Reversing the (Costly) Punitive Trend".
Although most jurisdictions around the world still use regular fines (fixed-fines) that do not systematically depend on the wealth of the offender, day-fines gain popularity across Europe. Bellow you can find an interactive map that I have created of all European models of day-fines. In this map you can find which countries already implement this model, the year this model was introduced in those countries, the maximum number of days that can be imposed for one offense, and the maximum daily unit.
July 2021: Just Published Day Fines in Europe: Assessing Income-Based Sanctions in Criminal Justice Systems, Cambridge University Press (blog post; In the media). The first comprehensive book on day fines.
June 2019: organised the first
International Conference on Day Fines -
Taking Wealth Seriously: European Practice with Day Fine, Rotterdam, The Netherlands.
Provide expert advice in projects for the Dutch Ministry of Justice and Security, and the Israeli Ministry of Finance.
Additional Related Publications: