A court in Victoria has ordered a man who has been jailed for 30 years for the death of his daughter to pay more than $12.5 million in child neglect damages, a move he denies.

A family court judge in Victoria last year ordered that the man be released after he spent time in jail and was not deemed to have a mental health problem, but the court in the Northern Territory found in 2016 that he was.

The man, who cannot be named for legal reasons, pleaded guilty in 2012 to a charge of causing grievous bodily harm to his daughter, Emma, by negligence, following an investigation by the Department of Child Safety and Social Services (DCSSA).

In April 2017, a trial court found the man guilty of causing injury to Emma and ordered him to pay an additional $11.5000 in damages.

Mr Lillis had spent five years in jail for the offence and the case was adjourned by the court to allow time to settle.

The Department of Children and Family Services (DCSSA) said in a statement that it had no comment to make on the decision to order payment.