Payments 101

ACH vs. wire transfer: what's actually different?

Both move money bank-to-bank, but the cost, speed, and finality are different enough to matter for a business's cash flow and risk.

Speed

ACH: 1–3 business days (same-day options exist for a fee).
Wire: often same business day.

Cost

ACH: typically low-cost or free.
Wire: flat fee per transfer, commonly $15–$50.

Finality

ACH: can be reversed/disputed under certain conditions.
Wire: generally final once sent.

What ACH is best for

ACH (Automated Clearing House) transfers move through a batch network run by NACHA, and are the backbone of things like payroll, recurring bill pay, and B2B invoice payments. The lower cost and acceptable speed make it the default choice for routine, recurring, or non-urgent transfers.

What wire transfers are best for

Wires move directly bank-to-bank in near real time and are treated as final. That combination of speed and finality is why they're standard for large one-off payments — real estate closings, large B2B settlements, or time-sensitive international payments — where both parties need certainty the funds have actually moved.

Which is cheaper, ACH or wire transfer?

ACH is almost always cheaper. Wire transfers commonly carry a flat fee, often in the $15 to $50 range depending on the bank and whether it's domestic or international. ACH transfers are typically a few dollars or less, and many business banking or payment platforms include them at no cost.

Which is faster, ACH or wire transfer?

Wire transfers, especially domestic ones initiated early in the business day. A wire can settle same-day. Standard ACH transfers typically take one to three business days, though same-day ACH options exist for an added fee.

Can a wire transfer be reversed?

Generally no. Wires are treated as final once sent, which is part of why they're used for large, time-sensitive, or high-trust transactions like real estate closings. ACH transfers have more built-in reversal/dispute mechanisms, though they're not unlimited.

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