California State Tax Deadline 2024. Extension to file s corporation & partnership taxes in california for 2024. As a result of california's tax expansion, the state's top income tax bracket has increased by 1.1%, to 14.4% for the 2024 tax year.
The california tax deadline extension covers tax filing and payment deadlines initially falling between january 21, 2024, and june 17, 2024. Itโs back to business as usual for federal.