What an MT103 represents
An MT103 is used to communicate a single customer credit transfer. The message combines network headers with a text block containing numbered fields. Those fields identify the payment, settlement amount, ordering party, beneficiary, routing institutions, remittance details and charge arrangement.
Common MT103 fields
| Field | Typical purpose | Operational check |
|---|---|---|
:20: | Sender's transaction reference | Use it to trace the instruction and prevent duplicate handling. |
:23B: | Bank operation code | Confirm that the operation type matches the expected credit transfer. |
:32A: | Value date, ISO currency code and amount | Read the six-digit date, three-letter currency and decimal amount together. |
:50A/F/K: | Ordering customer in one of several permitted formats | Review the account, name and address or identifier supplied. |
:52A/D: | Ordering institution when different from the sender | Check whether another institution originated the instruction. |
:53a: | Sender's correspondent | Review the reimbursement or correspondent route. |
:54a: | Receiver's correspondent | Confirm the receiver-side correspondent when present. |
:56a: | Intermediary institution | Identify a bank between the sender and account-with institution. |
:57a: | Account with institution | Confirm the beneficiary's servicing institution. |
:59a: | Beneficiary customer | Check the beneficiary account or identifier and name. |
:70: | Remittance information | Match invoice numbers, purpose or other payment references. |
:71A: | Details of charges | Review whether charges are borne by the sender, beneficiary or shared. |
Reading field 32A
Field 32A combines three values without labels. In :32A:260902USD25000,00, 260902 is the value date in YYMMDD format, USD is the currency and 25000,00 is the amount using a comma as the decimal separator.
Party-field options matter
A letter appended to a field number changes its format. For example, option A generally emphasizes an identifier such as a BIC, while options F or K can carry party details in different structured or line-based forms. Do not assume that every MT103 will use exactly fields 50K, 57A and 59.
Headers and text block
The basic header begins with block 1, while block 2 carries application-header information and can reveal the message type and receiver. The numbered payment fields usually appear inside block 4. A viewer should preserve the raw message because header interpretation and field options may be important during an investigation.
Check the :32A: value in your own MT103
Field :32A: combines the six-digit value date, three-letter currency and comma-decimal amount. If a message is being rejected or is difficult to read, open the MT103 format checker, use the safe example or paste an authorized complete FIN message, and inspect any relevant warnings.
Fastest way to inspect a message
Paste a redacted message into the free MT103 viewer. FinMessage identifies common fields, presents a readable payment summary and lets you export the result to Excel.