Relevant podcast on the workings of ACH, if you're interested in something less technical than this post: https://www.npr.org/sections/money/2018/01/10/5768797

Relevant podcast on the workings of ACH, if you're interested in something less technical than this post: https://www.npr.org/sections/money/2018/01/10/576879734/episode-489-the-invisible-plumbing-of-our-economy https://www.npr.org/sections/money/2018/01/10/576879734/epis...