Mackenzie Phillips Details How ‘Morals Clause’ Ended Her Run on ‘One Day at a Time’

Mackenzie Phillips recently opened up about the contractual provision that brought her tenure on the classic sitcom “One Day at a Time” to an abrupt end. Speaking at Fanboy Expo Knoxville in Tennessee, the 66-year-old actress disclosed details about the specialized morals clause inserted into her contract during her years on the show, which ran from 1975 to 1980.

The sitcom made Phillips a household name alongside Bonnie Franklin and Valerie Bertinelli, but behind the scenes she battled substance abuse issues that shaped the terms of her employment. Phillips explained that while all cast members had morals clauses in their agreements, hers contained more stringent language that gave producers authority to demand medical testing if they suspected drug use.

The turning point came during a lunch break on set when co-executive producer Patricia Fass Palmer approached Phillips as she lay sleeping on a couch. Palmer informed her that she would be taken to a doctor for a urinalysis test immediately. Phillips, recognizing that cocaine would show up in her system, initially asked for a delay, but Palmer refused and ordered her to collect her belongings and leave the set.

Phillips departed “One Day at a Time” following her firing, though she returned for a guest appearance before ultimately leaving the series for good in 1983. In interviews with Fox News Digital earlier this year, she recalled that she and Bertinelli would use cocaine during lunch breaks and also in the dressing room while filming the show.

The actress emphasized that getting caught proved beneficial to her long-term health and recovery. Phillips credited her faith and resilience with helping her move forward from her struggles, noting that the difficult experiences shaped who she became. She has since worked in addiction recovery, serving as a counselor and manager at Breathe Life Healing Centers.