The former leader ran away to Saudi Arabia in January after a revolution against his 23-year dictatorship.
A Tunis’ court was tackling two separate cases against Ben Ali and his relatives on Thursday, media reported.
One case is the fraudulent acquisition of a plot of land in an upscale Tunis district by Ben Ali’s daughter Nesrine and his son-in-law Sakhr al-Materi following the “personal intervention” of the former leader.
In the second case, Ben Ali and al-Materi, who took refuge in Qatar, are accused of having acquired a plot in the same neighborhood initially intended to be a park but subsequently reclassified as building land, considerably boosting its value.
On Thursday, Nesrine was also sentenced to eight years in jail and al-Materi to 16 years on the same charges.
Ben Ali has already been sentenced in his absence to a total of more than 50 years in prison in two separate trials.