The ACB head Atif Mashal told a news channel here today that Younis, 39, had agreed to coach the Afghanistan team.
"We are currently finalising his contract," Mashal added.
In the past, several of former Pakistan captains and players have coached the Afghanistan team including current chief selector Inzamam-ul-Haq, former captain Rashid Latif and pacer Kabir Khan.
Inzamam had resigned as Afghanistan's head coach last year to become Pakistan's chief selector.
Younis became only the first Pakistani batsman to score 10,000 Test runs in the first Test in the West Indies.
There have been media reports that the PCB wants Younis to work with the national under-19 team and prepare them for the upcoming ICC Youth World Cup.
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