Important background reading: http://www.pymnts.com/in-depth/2014/payments-by-the-feds-numbers/#.U9f0gYAQ7vY For instance... ACH Payments: New revised data Three things to know: Total number of ACH payments in 2012 was 21.7 billion Revised total value of ACH payments in 2012 is estimated to be $144.1 trillion, almost triple the previous value estimate. Average value of an in-house on-us ACH payment is $21,653