Between them, Delphina Ngaheke and John Henderson-Newport received more than $80,000 of benefit money to which they were not entitled.
Each appeared for sentencing in the Whanganui District Court on Wednesday.
They had received benefits from 2009 onwards, having agreed to advise if their circumstances changed, such as if they began living with a person in the nature of marriage or gained employment.
Ngaheke started with KFC in 2011 and was in a relationship with Henderson-Newport in the nature of marriage but did not advise of the changes.
Between 2010 and 2015 Ngaheke received an overpayment in benefits of $44,936.51, while Henderson-Newport, who worked for the Wanganui Chronicle despite being on a benefit, was overpaid $39,146.20.