ACH or wire: which one, and why the price is so different
One costs pennies and takes days. The other costs thirty dollars and lands in minutes. You are not paying for speed.
One is batch, cheap and reversible for a while. The other is one off, immediate and final.
What finality actually means
A wire, once accepted, is done. There is no unwind. If you wired money to a fraudster, your bank can request the receiving bank return it, and the receiving bank can decline. Your recourse is a favour, not a right.
ACH is different. There is a defined return window, return reason codes, and for consumer debits a genuine dispute right with a real deadline. Money can come back.
That single difference explains the entire price list. A wire carries settlement risk that somebody has to underwrite, staff and monitor, in real time, per payment. ACH spreads its cost across a batch of fifty thousand.
Which to use
Wire when the amount is large, the counterparty needs certainty, and the timing is structural: a house closing, a business acquisition, a margin call. Anywhere the deal cannot proceed on a promise.
ACH for anything recurring, routine, or where a day or two does not change the outcome. Payroll, subscriptions, vendor payments, moving money between your own accounts.
The honest rule: if you would be comfortable being told the money cannot come back, use a wire. Otherwise you are paying thirty dollars for a property you did not want.
The fraud asymmetry nobody explains at the counter
Wire fraud is devastating precisely because of finality. The classic version is a fake email from a title company or a supplier, changing the account details at the last moment. The money leaves, it is final, and it is gone within the hour.
This is why banks ask sceptical questions before a large wire, and why the single most valuable habit in your financial life is to verify account changes by phone, on a number you already had, never one supplied in the email requesting the change.
Posting a letter and handing over cash. One can be recalled from the sorting office. The other is gone the moment your fingers open.
Where you meet it
Every house purchase, every "we only accept wire" invoice that should make you slow down, and every fee schedule where two lines are separated by a factor of a hundred.