- 11 September – Some 1.5 million people take part in Catalonia's annual independence rally in Barcelona.[1]
- 20 September – The Spanish prime minister rejects a call from Catalonia's leader for fiscal independence, days after a giant pro-autonomy rally in Barcelona.[2]
- 25 September – Artur Mas announces that Catalonia will hold early elections on November 25[3]
- 26 November – Voters of Catalonia return a clear majority of pro-separatist parties to the Catalan Parliament[4]
- 19 December – Artur Mas of the conservative Convergence and Union party and Oriol Junqueras of the Republican Left of Catalonia agree to form a new government and hold a referendum on independence.[5]