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I noticed many people use ACH and Wire Transfers interchangeably as they both solve the same situation. My question is the following: Which is faster? I couldn't care less about anything else other than speed. What makes it a complicated comparison is that there only one type of Wire transfer. Its just plain old wire transfer. With ACH, there's ACH & Same-Day ACH (usually costing extra) The question here is this: Is Wire Transfer faster than Regular ACH? Is it faster than same-Day ACH? Or is Wire Transfer faster than Regular ACH but Same-Day ACH is faster than all, including wires? Sorry for the confusing explanation, im barely grasping it myself :)