Reports must be submitted by the 25th day of the month following the reporting period (quarterly).
This is the current unified reporting form. You specifically need Section 2 , which covers insurance contributions for industrial accidents and occupational diseases (the old 4-FSS). skachat blank otcheta dlia fss
If you are using accounting software, you will need the electronic format specifications provided by the SFR. Reports must be submitted by the 25th day
The most reliable source for the latest templates and filling instructions is the official Social Fund of Russia website (sfr.gov.ru). skachat blank otcheta dlia fss