The IRS announced on October 23, 2020 that it would resume mailing collection notices in the "500" series.
Collection Notices Are Back, IRS Sending 500 Series Again
Collection Notices Are Back, IRS Sending 500…
Collection Notices Are Back, IRS Sending 500 Series Again
The IRS announced on October 23, 2020 that it would resume mailing collection notices in the "500" series.