Guinea-Bissau will hold a constitutional referendum on Aug. 30, 2026, to determine whether to expand the powers of the presidency [1].

The vote represents a critical pivot for the nation as it attempts to transition from military rule back to civilian governance. By increasing executive authority, the current leadership seeks to consolidate control over the state apparatus before the scheduled return to democratic elections.

The process is being led by a military junta that seized control of the country in a coup in 2026 [3]. The junta said the changes are necessary for stability, though the move has drawn scrutiny from those concerned about the erosion of checks and balances within the government.

If the referendum passes, the president would gain greater authority to manage state affairs and oversee the transition process. This expansion of power is intended to secure the junta's influence as the country prepares for general elections in December 2026 [1, 2].

Opposition groups have expressed concern that the referendum is a mechanism to legitimize military influence under a civilian veneer. The push for a new constitution comes at a time of heightened political tension in the capital, Bissau, where the balance between military and civilian power has remained fragile for years.

The upcoming vote will serve as a litmus test for the junta's popularity and its ability to implement systemic changes to the nation's legal framework. Observers said the timing of the referendum, occurring just months before the general elections, leaves little room for extensive public debate or legislative review of the proposed constitutional amendments.

Guinea-Bissau will hold a constitutional referendum on Aug. 30, 2026

The referendum suggests the military junta is attempting to institutionalize its influence by reshaping the legal structure of the presidency. By expanding executive power before the December elections, the junta can ensure that the subsequent civilian leader operates within a framework that favors centralized control, potentially limiting the ability of future parliaments or courts to challenge executive decisions.