A day-fine, day fine, unit fine or structured fine is a unit of payment for a legal fine which is based on the offender’s daily personal income. It is intended as a punishment financially equivalent to incarceration for one day without salary, scaled to equal impacts on both high- and low-income offenders. An analogy may be drawn with income tax, which is also proportional to income, or even levied at higher rates for higher incomes.
Jurisdictions employing the day-fine include Denmark (Danish: dagbøde), Estonia (Estonian: päevamäär), Finland (Finnish: päiväsakko), France (French: Jour-amende), Germany (German: Tagessatz), Sweden (Swedish: dagsbot), Switzerland, and Macao.