Reject or return in correspondent banking

IN ONE LINE

Analogy: the parcel already delivered, or not.

This academy's SEPA material teaches the same underlying question for euro transfers: has the money actually moved yet? A reject means no — the payment is refused before it crosses between banks, so nothing needs undoing.

A return means yes — the money already arrived, so bringing it back is a new delivery in the opposite direction, not a cancellation.

Correspondent banking asks the identical question, with two extra wrinkles.

First, no scheme sets a universal clock the way SEPA's rulebook fixes a beneficiary bank's return window in days — correspondent-banking timing is whatever the correspondent relationship allows.

Second, a cover payment splits into two envelopes travelling separately — the announcement and the cover value — so pulling one back after both have arrived means chasing two cases, not one.

WHAT IT ACTUALLY IS

A reject travels as a negative pacs.002: a financial institution refuses the instruction before any interbank settlement happened on that leg — a format error, a compliance hold, a policy refusal — and because no money crossed, there is nothing to reverse, only an instruction to fix and resend or abandon.

A return travels as a pacs.004: the interbank leg already settled, value actually moved from one correspondent's books to another's, so getting it back means a new, opposite-direction settlement, referencing the original transaction and carrying a return reason from the ISO 20022 external code set.

Unlike SEPA, where the EPC rulebook fixes how many business days a beneficiary bank has to return a settled transfer, correspondent banking carries no scheme-wide return deadline: whether, and how quickly, a correspondent returns settled value is a matter of the bilateral relationship and market practice between the two banks, not a rulebook clock.

HOW IT WORKS

Correspondent chains complicate both directions.

A reject can come from any bank along the chain, not only the last one — an intermediary refuses before forwarding, and every bank upstream of it never sees a settled leg on its own books at all.

A return is harder to unwind the longer the chain: the money has to retrace its way back through however many reimbursement agents carried it out, and each of those correspondents may deduct its own charge again on the way back, the same way it may have deducted one on the way out — which is why a returned amount is so often smaller than what was originally sent, and why reconciling a return means checking every hop's deduction, not only the total shortfall.