A woman received £11,000 in housing benefit after she made false claims.
Tammy Garscadden, of Barton Square, Corby, was found guilty by town magistrates of falsely claiming the benefit and was sentenced to six weeks in prison, suspended for 12 months.
She was also ordered to carry out 180 hours unpaid work, to pay £600 costs and repay the overpaid benefits.
Garscadden appeared before magistrates on June 7 following an investigation by Corby Council on behalf of the Department of Works and Pensions.
The court heard that she failed to declare that she was living with the father of her children.
Leader of Corby Council, Cllr Tom Beattie, said: “This is another prosecution that highlights the successful partnership working of our fraud investigation team and the Department of Works and Pensions.
“We take benefit fraud very seriously and work closely to ensure those who are trying to take advantage of the system are caught.”
Members of the public can report cases where they suspect false claims for benefit are being made by contacting a member of Corby Council staff in confidence on 01536 464095.