By a calendar presented in August last year, AFIP have reported all this monotributistas they must begin issuing bills through electronic system.
Those who started to do it (since October) were those in the "E" category. now, starting December 1, 2018, it will be the turn of all category "D".
Electronic manufacture will be required in all categories.
AFIP, on his site, a a guide that explains step by step How to issue an electronic invoice.
Since electronic invoices have to be issued by the other categories
Monotangies of category C: starting February 1, 2019.
Category B bids: from 1 March 2019.
Category A: from April 1, 2019.
For operations with end consumers the obligation will be applicable on April 1, 2019. regardless of the category that the subject joined Monotributo.
At this point, there are businesses that have to choose to bill through a tax controller or electronic invoice.