The development comes a day after Ethiopia and guest nation the Democratic Republic of the Congo the confirmed they will not participate in the event
South Sudan are the latest nation to withdraw from Cecafa Senior Challenge Cup owing to financial restraints.
The South Sudan Football Association admitted they are not in a position to raise the participation fee demanded by the organisers, saying they have no option but to withdraw from the regional tournament.
South Sudan's withdrawal follows the routes which were earlier taken by the Democratic Republic of the Congo and Ethiopia.
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“The administration of the South Sudan Football Association [SSFA] would like to take this opportunity to thank the administration of Cecafa for their good work of rendering to the development of football, especially in the East African region,” read a statement by the FA and seen by Goal.