<P> This was followed in 2008 by the mandatory requirement for all new service users to use AUDDIS--a more efficient system for organisations to send new Direct Debit instructions to their customers' bank, or building society, electronically instead of in paper format . In the same year, annual Direct Debit volumes surpassed the three billion mark and, by 2013, this figure reached 3.5 billion with 100 billion payments processed since 1968 . </P> <P> A record - breaking 2014 saw Bacs process 5.8 billion transactions, totalling £ 4.4 trillion and included 3.6 billion Direct Debits . These highs were surpassed again in 2015, when the number of payments passing through the Bacs system topped six billion for the first time, at a value of £ 4.6 trillion . 239 million more Direct Debits were processed in 2015 than the previous 12 months, representing the highest ever year - on - year increase in payments made this way . </P> <P> 2015 was also notable for the setting of another new record, with 103 million transactions processed in a single day in July, the first time the daily total had surpassed the 100 million mark . In the same year it was announced that the number of payments handled by Bacs since 1968 had broken the 110 billion mark . </P> <P> The records continued to fall in 2016 with 6.22 billion transactions processed at a value of £ 4.8 trillion, while the number of payments made by Direct Debit broke the 4 billion barrier for the first time . The daily processing record was also broken twice in the same year, with the 109.3 million payments passing through the system on a single day at the end of September surpassing the previous high of 103.7 million recorded in April . And, these figures were again surpassed in 2017, with over 6.34 billion payments processed at a total of £ 4.9 trillion . At the end of August 2018, the number of transactions processed by Bacs in a single day reached a new high of 114 million, while across the month a record 580 million payments were processed . </P>

What does it mean to pay by bacs