MT103 and ISO 20022: How to Track Your Payment
If you ask your bank for proof of an international transfer, you may receive a document described as an MT103, SWIFT copy, payment advice or ISO 20022 confirmation.
These documents may look different, but the important question is the same: What happened to the payment after the bank sent the instruction?
The UETR helps identify the transaction independently of the document layout.
What is an MT103?
MT103 is a traditional SWIFT FIN message type used for customer credit transfers between financial institutions.
An MT103-format record can contain the payment reference, value date, currency, amount, parties and charging instructions. In the legacy format, the UETR is located in field 121 of the user header, Block 3.
MT103 remains a familiar term in banking and international trade, even though the relevant interbank messaging standards have changed.
What changed with ISO 20022?
The coexistence period for MT and ISO 20022 cross-border payment instructions under Swift's CBPR+ programme ended on 22 November 2025.
ISO 20022 is now the principal message format for these cross-border payment instructions. Certain contingency conversion arrangements remain available.
This does not mean banks have stopped issuing every document that looks like an MT103. A customer-facing payment advice may still use a familiar layout. The format of your bank document should not be confused with confirmation that the recipient has received the money.
Understanding pacs.008, pacs.002 and pacs.004
pacs.008 — Customer Credit Transfer. A financial-institution-to-financial-institution payment instruction used for a customer credit transfer.
pacs.002 — Payment Status Report. A message used to report the status of a payment instruction, including rejection information.
pacs.004 — Payment Return. A message used to return funds after settlement of the original payment.
These messages serve different purposes. A pacs.008 is not, by itself, proof of final beneficiary credit.
Where is the UETR in ISO 20022?
For a pacs.008 message, the UETR is carried in the payment identification information, within the PmtId/UETR element.
It is a UUID-formatted reference intended to identify the payment across its processing chain. Do not confuse UETR with InstrId, EndToEndId, TxId, the invoice reference or the bank's internal reference number. These fields may have different purposes.
Can I track a payment using only an MT103 copy?
If the copy contains a valid UETR, you can use that reference to attempt a status check. You do not need to upload the full bank document to UETRACE for a basic website lookup.
If the UETR is missing, ask the sending bank to provide it.
Does an MT103 prove that a payment has arrived?
No. A payment message or advice documents an instruction or action reported by a bank. It should not be treated as interchangeable with confirmation that the beneficiary's account has been credited.
If there is a dispute over receipt, request the latest payment status and appropriate account-level confirmation from the relevant bank.
Track your international payment
Whether your bank provides an MT103-format copy or ISO 20022 payment information, start by identifying the UETR.
One reference. Three free website checks every day.