The deportation could happen as soon as next year, when Bouwer is expected to appear before the New Zealand Parole Board.
Bouwer was given a non-parole life sentence of 13 years at his November 2001 sentencing.
He later appealed his murder conviction, but the Court of Appeal extended his non-parole jail period by two years.
An Immigration New Zealand spokesman confirmed yesterday ''Colin Bouwer will be deported at the end of his sentence''.
The department declined to comment further on his case due to privacy reasons.
''Every case is considered on its merits but it is usual for NZ [Immigration] to deport a foreign national who has served a prison sentence and falls within its remit,'' the spokesman said.
Any travel costs for the deportation of a foreign national were covered by the department. Police would conduct a risk assessment before any travel to determine whether an escort was required.
The department did not keep figures in a ''reportable format'' on the number of foreign nationals deported at the end of their sentences, he said.
The former University of Otago head of psychological medicine administered a cocktail of drugs to his physiotherapist wife, Annette, between September 30, 1999, and her unexpected death on January 5, 2000.
Her death replicated hypoglycemic symptoms of a rare pancreatic tumour. Sedative and blood-sugar altering drugs were found during her autopsy.
Those detected drugs were the same types Bouwer, who was arrested by police on September 15, 2000, had obtained using 11 false prescriptions.
Following the six-week trial in the High Court at Christchurch, a jury took just three and a-half hours to find the then 51-year-old Bouwer guilty.
Bouwer arrived in New Zealand in 1997 and worked first at Southland Hospital before moving to Dunedin to take up a clinical post with Healthcare Otago.
Just four months before his arrest, his then 25-year-old son, Colin Bouwer, confessed to murdering his wife in South Africa, and was convicted of culpable homicide.
Colin Bouwer sen's conviction followed months of police investigation, including bugged conversations between Bouwer and a mistress of his, Dr Anne Walsh, who was present at his house the morning his wife's death was reported.
Untruths revealed included claims Bouwer was a member of the African National Congress (ANC), his wife had been gang-raped in South Africa, causing relationship problems, and that his Christian wife was actually Jewish and had to be buried within 48 hours.
Following her death, he travelled to South Africa, but returned to New Zealand bald and without his trademark beard, telling people he had undergone chemotherapy for prostate cancer.
Following his arrest, it was also revealed Bouwer was declared an impaired doctor by the South African Health Professions Council between 1981 and 1992, because of his painkiller addiction.
Bouwer served some of his sentence at Christchurch's Paparua Prison and Otago Corrections Facility, but is understood to have been moved to an undisclosed prison several years ago.
Following his trial, the prosecution and defence of Bouwer was estimated to have cost the New Zealand taxpayer close to $1.7million and his incarceration was likely to have cost more than $1.3million.
