In the Covid-19 context, the STATEC have announced tolerance measures relating to Intrastat declarations for the following months:
Intrastat return for February 2020 >>> deadline is postponed to April 24, 2020
Intrastat return for March 2020 >>> deadline is postponed to May 15, 2020
Intrastat return for April 2020 >>> deadline is postponed to June 8, 2020
Intrastat return for May 2020 >>> deadline is postponed to June 30, 2020
Source: michaelamerz.org