FSR | Big 4 Cycle 2026 22 September until 01 OctoberPwC 22 September 12:00 AM until 11:59 PMKPMG 24 September 12:00 AM until 11:59 PMDeloitte 29 September 12:00 AM until 11:59 PMEY 01 October 12:00 AM until 11:59 PM