The legal interest rate is the applicable rate, pursuant to art. 1284 of the Civil Code, for the measurement of the rate of the legal default interest on the sums due to creditors. Below is a summary table of the rate trend from 1990.

The calculation of the legal interest rate (initially determined with ordinary laws) from 1999 is established from year to year, pursuant to the first paragraph of art. 1284 of the Civil Code amended by art. 2 of the law of 23 December 1996, n. 662, according to the following: "The legal interest rate is determined at 5 per cent on an annual basis. The Minister of the Treasury, with his own decree published in the Official Gazette of the Italian Republic no later than 15 December of the year previous to the one to which the essay refers, it may annually modify the measure, on the basis of the average annual gross yield of hard government bonds not exceeding twelve months and taking into account the inflation rate recorded in the year. If by 15 December no new rate has been set, it remains unchanged for the following year. "

The legal interest rate is used to pay the so-called "pecuniary obligations" which are characterized precisely by the fact of having as their object a sum of money, in fact the judges in their sentences based on the legal rate in force establish the measure of interest as a compensatory function for the failure / late payment of the sum of money.

 

From To Legal interest rate
Legislation
21.04.1942 15.12.1990 5,00% Codice Civile art. 1284
16.12.1990 31.12.1996 10,00% Legge 26 novembre 1990, n. 353
01.01.1997 31.12.1998 5,00% Legge 23 dicembre 1996, n. 662
01.01.1999 31.12.2000 2,50% D.M. del Tesoro 10 dicembre 1998
01.01.2001 31.12.2001 3,50% D.M. del Tesoro 11 dicembre 2000
01.01.2002 31.12.2003 3,00% D.M. Economia e Finanze 11 dicembre 2001
01.01.2004 31.12.2007 2,50% D.M. Economia e Finanze 01 dicembre 2003
01.01.2008 31.12.2009 3,00% D.M. Economia e Finanze 12 dicembre 2007
01.01.2010 31.12.2010 1,00% D.M. Economia e Finanze 04 dicembre 2009
01.01.2011 31.12.2011 1,50% D.M. Economia e Finanze 07 dicembre 2010
01.01.2012 31.12.2013  2,50% D.M. Economia e Finanze 12 dicembre 2011
01.01.2014 31.12.2014 1,00% D.M. Economia e Finanze 12 dicembre 2013
01.01.2015 31.12.2015 0,50% D.M. Economia e Finanze 11 dicembre 2014
01.01.2016 31.12.2016 0,20% D.M. Economia e Finanze 11 dicembre 2015
01.01.2017 31.12.2017 0,10% D.M. Economia e Finanze 11 dicembre 2016
01.01.2018 31.12.2018  0,30% D.M. Economia e Finanze 13 dicembre 2017
01.01.2019 31.12.2019 0,80% D.M. Economia e Finanze 15 dicembre 2018
01.01.2020 31.12.2020 0,05% D.M. Economia e Finanze 12 dicembre 2019
01.01.2021 31.12.2021 0,01% D.M. Economia e Finanze 11 dicembre 2020