Franchise Tax Board Extends Filing and Payment Deadlines to June 15, 2020 The CA FTB has issued a press release extending tax filing and payment deadlines that occur between March 15, 2020 and June 15, 2020. The new filing and payment deadline is June 15, 2020 for taxpayers affected by the COVID-19 pandemic. Partnerships and LLCs ----------------> Now due June 15 2020 (Originally due March 15 2020) S Corps and C Corps -------------------> Now due June 15 2020 (Originall