Bacs hash not required from 2023-24 On Monday 13th February 2023, the HM Revenue and Customs Software Developers Support confirmed to the software developer community the end of the BACS hash! A compulsory feature of 10 tax years for many has now been dropped. Once claimed that RTI BACS is such a powerful validation of … Continue reading HMRC drops the ‘best practice’ BACS Hash →