Can field 50K hold company names?

Yes — both individuals and companies use 50K. The free format makes it forgiving but harder to screen automatically.

SWIFT Field 50K — Ordering Customer (Free Format)

SWIFT MT103 Field 50K — Ordering Customer (Free Format)

Last reviewed: 2026-05-26 · Curated by Ohmyfin Organisation editorial.

Field 50K is the free-format Ordering Customer field. It is the most common variant on legacy MT103 messages: optional account number plus up to 4 × 35-character lines of name and address.

SWIFT MT103 message diagram showing fields 20, 32A, 50K, 59, 70 and 121 (UETR)

How an MT103 maps to the UETR (field 121), sender reference (field 20), value-date/currency/amount (field 32A) and beneficiary details. Source: SWIFT MT103 specification.

Details

Format: optional /account on line 1, then 1-4 lines of 35 characters. Example: 50K:/123456789\nJOHN DOE\n123 MAIN ST\nNEW YORK NY 10001\nUSA.

Quick facts

SWIFT field specification
Example value	`:50K:/12345678\nJOHN DOE\n123 MAIN ST\nLONDON GB`
Valid characters / format	Account + 4 free-text lines
Required on MT103	Mandatory
Required on MT202	Not used
Required on pacs.008	Mandatory
Notes	Unstructured ordering customer (legacy MT format).

Example value

:50K:/12345678\nJOHN DOE\n123 MAIN ST\nLONDON GB

Valid characters / format

Account + 4 free-text lines

Required on MT103

Mandatory

Required on MT202

Not used

Required on pacs.008

Mandatory

Notes

Unstructured ordering customer (legacy MT format).

Key facts

Frequently asked questions

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