SWIFT Field by Field: What Each Field in MT700, MT799, MT760 Really Means

The operational checklist every trader should know for EN590, Jet A1, and ULSD deals.

Introduction — Why Understanding SWIFT Fields Matters

In international fuel trading, MT700, MT799, and MT760 are the backbone of payment and bank communication. Yet, many traders fail simply because they do not understand what each field in a SWIFT message represents. This guide explains each field in plain language and shows how it impacts EN590 and Jet A1 transactions.

1. MT700 — Letter of Credit

The MT700 is an irrevocable Letter of Credit. Each field serves a purpose:

• :20: Transaction Reference Number — unique identifier for the LC.
• :31C: Date of Issue — when the LC was created.
• :40A/40E: Form of LC — type (e.g., Irrevocable, Revolving).
• :50: Applicant — buyer who requests LC.
• :59: Beneficiary — seller receiving payment.
• :32B: Currency & Amount — total value and currency.
• :41A: Available With — bank where payment is made.
• :42C/D: Drafts / Terms of Drawings — how and when payment is made.
• :43P: Partial Shipments — allowed or not.
• :44C/F: Latest Shipment / Port of Loading — logistics references.
• :45A: Description of Goods — product specification.
• :46A: Documents Required — inspection certificates, invoices, bills of lading, etc.
• :47A: Additional Conditions — special clauses or instructions.
• :71B: Charges — bank fees responsibility.
• :48: Period for Presentation — how long beneficiary has to present documents.
• :49: Confirmation Instructions — whether a confirming bank is involved.

2. MT799 — Free Format Bank-to-Bank Proof of Funds

MT799 is used for pre-qualification and bank-to-bank messages:

• :20: Reference Number — unique identifier.
• :21: Related Reference — links to underlying deal or SPA.
• :79: Text — free-format message confirming financial backing; may include product, volume, SPA reference.
• :32B: Optional Currency & Amount — sometimes included to show available funds.

Tip: MT799 does not trigger payment — it only shows capability to issue instruments.

3. MT760 — Standby Letter of Credit

MT760 guarantees payment if the buyer defaults:

• :20: Reference Number — unique ID for the SBLC.
• :21: Related Reference — may link to SPA or previous MT799.
• :32B: Currency & Amount — total coverage of SBLC.
• :50: Applicant — buyer requesting SBLC.
• :59: Beneficiary — seller receiving payment upon default.
• :32H / :39A / :39B: Amount Details — conditions for draw.
• :44C / :44D: Expiry / Location — where and when SBLC expires.
• :47A: Additional Conditions — e.g., documents to trigger payment, dispute resolution.
• :71B: Charges — who pays bank fees.
• :79: Text — free-format instructions for the SBLC.

4. Operational Checklist for Traders

Before acting on MT700, MT799, or MT760:

• Verify the issuing and receiving bank SWIFT codes.
• Ensure all references match SPA and transaction volume.
• Check that all product specifications (EN590, Jet A1, ULSD) are correct.
• Confirm dates, ports, partial shipment clauses, and inspection requirements.
• Record and archive all messages for compliance.
• Never rely on verbal confirmations — SWIFT text is binding.

5. Common Mistakes Traders Make

• Assuming MT799 equals payment.
• Ignoring minor typos in MT700/MT760 fields.
• Failing to align MT760 expiry with SPA delivery schedule.
• Confusing MT700 and MT760 triggers.
• Relying on unverified banks or offshore SWIFT codes.

FAQ — SWIFT Fields Simplified

1. Do I need to understand all fields?
   Yes — even minor mistakes can void payment or delay deals.
2. Which SWIFT type guarantees payment?
   MT700 and MT760 can guarantee payment under specific conditions; MT799 does not.
3. Can fields be changed after issuance?
   No — changes require bank agreement and re-issuance.
4. Are field errors common?
   Yes — most failed transactions trace back to mismatched fields.
5. Do banks provide guidance?
   Yes, but traders must cross-check SPA and inspection clauses independently.

Conclusion — Master the Fields, Master the Deal

Understanding MT700, MT799, and MT760 field by field is essential for EN590, Jet A1, and ULSD transactions. Every reference, amount, date, and clause matters. Traders who align SWIFT messages with SPA, inspection, and logistics maximize deal success and minimize risk.