In the past, self-employed workers who wanted to reduce their contributions after experiencing a drop in income were often unable to do so. To try to make it easier for people to take account of fluctuations in their income, the Government has introduced 4 new reduction thresholds (to add to the 2 existing thresholds) so that more people can adjust their contributions to match their actual income.
The new thresholds are applicable to contributions from the first quarter of 2018.
Source: Partena Professional