Their lawyer, Wee Yeong Kang, said the date was fixed during an online proceeding today.

Wee added that LHDN requested the hearing — initially fixed for next Wednesday (Feb 16) — to be vacated and the court allowed the request.

On Sept 9 last year, the Court of Appeal dismissed appeals from Najib and his son, Nazifuddin Najib, to set aside summary judgments obtained by LHDN as part of its civil recovery proceedings.

A three-member bench, chaired by Abdul Karim Abdul Jalil, said the Income Tax Act 1967 provided a scheme on how assessment and tax collection should be made.

Karim said that in taxation law, the outstanding tax must be paid within a specified time after an assessment was done and notice had been sent to taxpayers.

Last year, High Court judge Ahmad Bache ruled that Najib had to pay LHDN RM1.69 billion, inclusive of additional tax and penalties for the assessment years from 2011 to 2017.

Separately, High Court judge Ahmad Zaidi Ibrahim ordered Nazifuddin, a businessman, to pay RM37.6 million in unpaid taxes from 2011 to 2017.