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Accounts Payable & Receivable › Payment Runs

What is the difference between ACH, wire, and check payments in terms of risk and cost?

Intermediate

Answer

ACH/BACS batch transfers are low-cost and reversible within limits, suited to routine bulk payments. Wires are fast, final (hard to recall), and higher-cost—used for urgent or high-value/cross-border payments, but attractive to fraudsters because they're irreversible. Checks are cheap to issue but slow and the most exposed to alteration and theft.
Real-world example A fraudulent invoice pushed for urgent wire payment is scrutinized precisely because wires can't be clawed back.

Common follow-ups: Why are wires a fraud target? | When is ACH preferred over wire?