The five-judge bench headed by Justice Asif Saeed Khosa will announce the decision at 11.30 am, which was reserved on July 21, Dunya news reported.
The Prime Minister's family was named in the Panama Papers, which comprised 11.5 million documents, showing how some of the world's most powerful people secreted away their money in offshore holdings.
While two judges recommended disqualification of Prime Minister Sharif in their April 20 judgement, three other judges had recommended the formation of a joint investigation team (JIT) to probe the ruling family offshore investments.
The JIT reportedly recommended PM Sharif's disqualification to the Supreme Court earlier this month. The top court reserved its decision.