The Automated Clearing House (ACH) Network was established over 40 years ago to help banks reduce the costs associated with the preferred bank transfer method of the day: paper checks.

Since then, ACH has become one of the largest and most important payment systems in the world.

Read on for useful facts and statistics related to the ACH Network.


  • In 2015 the number of ACH transfers grew 5.6 percent from year prior, processing over 24 billion transactions worth an estimated $41.6 trillion (Nacha).
  • In Q1 of 2016, ACH transfers were already up to 5 billion bank transfers for a total of $10.6 trillion—a 6.1 percent and 4.5 percent increase respectively (Nacha).


  • 83% of businesses in the United States use ACH to make some sort of payment (AP Now’s 2016 Payment Survey)
  • Consumers received 5.8 billion direct deposits for things like payroll and tax refunds in 2015 (Nacha).

Of the over 10,000 member financial institutions, the top 50 originating financial institutions accounted for over 19.7 billion transactions, or 93 percent of the total originated volume in 2018.

According to Nacha, the top 5 ODFIs by ACH transaction volume in 2018 were:

  1. Wells Fargo & Company – 5,863,675,291
  2. J.P. Morgan Chase & Co – 4,135,738,958
  3. Bank of America Corporation – 2,650,845,132
  4. Citigroup, Inc. – 1,078,552,351
  5. U.S. Bancorp – 750,628,837

Compared to the top 5 ODFIs by ACH transaction volume in 2015:

  1. Wells Fargo & Company – 4,527,405,837
  2. J.P. Morgan Chase & Co – 3,669,366,069
  3. Bank of America Corporation – 2,414,552,669
  4. Citigroup, Inc. – 873,016,634
  5. U.S. Bancorp – 680,790,988

The Costs to Process ACH

As the only private-sector ACH operator, the Federal Reserve operates the ACH system “at-cost,” meaning it re-cooperates only the money spent to run the system.

According to the Federal Reserve System, in 2015 the expenses to operate ACH were $129.9 million. The Federal Reserve’s revenue was $129.8 million.

Our Favorite Factoids

  • There are nearly 80 reject codes for why an ACH transaction might go wrong.
  • The Operating Rules and Guidelines, created by Nacha, which manages and administers the rules for the financial network, are over 560 pages long—including the guide used by Dwolla.


Dwolla provides an easy on-ramp to the ACH network. Work with one of our integration specialists to design your unique payment solution with our White Label ACH API. Get started today.


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