The 51-year-old wealthy businessman is currently out of Democratic Republic Congo seeking medical treatment.
He was found guilty of illegally selling a property in Lubumbashi, his eastern power base.
The court in Lubumbashi, DR Congo’s second city, also fined the football tycoon $6m (£4.1m) for illegally selling the property, which a Greek citizen claimed belonged to his family.
Katumbi flew out of the country on 20 May, a day after the authorities issued an arrest warrant for him on separate charges of hiring foreign mercenaries – allegations he denies.
Moise Katumbi was governor of the south-eastern Katanga province for almost a decade.
In September last year he broke ties with the ruling party when he accused President Kabila, his former ally, of wanting to cling to power.
His popularity is partly down to his job as the president of a great source of Congolese pride – football club TP Mazembe who are Africa’s reigning football champions, having won the African Champions League for the fifth time in November.
Katumbi had the backing of seven opposition parties to run for the presidency in elections due to be held in November.