Heta's lawyer Rob Vigor Brown said a reparation order had not been sought as Heta was already paying $20 a week via an automatic payment.
After Judge Weir told the court it would take Heta 50 years to repay the money at that rate, Mr Vigor Brown said she could realistically pay back the money at $50 a week.
In court today, Heta apologised for the fraud.
"I apologise to society... I'm willing to comply with what your honour sees fit to sentence me too."
Heta asked for leniency from the judge, saying she did not have anyone to take care of her four children.
Judge Weir said that apart from some part-time work, Heta had been receiving benefits for 27 years. He said her offending was pre-planned.
Judge Weir said a pre-sentence report in which the probation officer said Heta had showed no remorse and had talked about having a sense of entitlement to the benefit was an accurate assessment.
Judge Weir said Heta had the care of four children and had two grandchildren but she had extended whanau.
Mr Vigor Brown asked that Heta be sentenced to home detention and community work but Judge Weir said that given Heta's attitude, home detention was not available to her.