🟦 CATEGORY 1 — Customer Payments & Cheques (MT1xx)
🔹 Purpose
Used when a bank sends or receives payments on behalf of customers (individuals, companies, trusts).
These are client-originated payments, not bank-to-bank treasury movements.
📌 Key Message Types (Conceptual)
Although individual MT numbers are not listed in detail here, Category 1 messages cover:
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Customer wire transfers
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Cheques and cheque clearing
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Customer payment instructions
🔁 MX (ISO 20022) Equivalents
Used in payment clearing & settlement systems:
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pacs.003 – FI-to-FI customer credit transfer (batch clearing)
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pacs.004 – Payment return / reversal
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pacs.008 – Customer credit transfer (core customer wire message)
🏦 Who Uses This
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Retail banks
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Corporate banking
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Private banking
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Trust and fiduciary accounts
✅ Real-World Use Cases
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Client wires funds to another bank
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Trust distributes funds to beneficiaries
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Corporate payroll and vendor payments
🟩 CATEGORY 2 — Financial Institution Transfers (MT2xx)
🔹 Purpose
Used exclusively for bank-to-bank transfers, not customers.
These messages move institutional funds, often related to:
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Treasury operations
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Liquidity management
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Correspondent banking
🔁 MX Equivalent
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pacs.009 – Financial Institution Credit Transfer
🏦 Who Uses This
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Correspondent banks
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Central banks
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Clearing banks
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Treasury desks
✅ Real-World Use Cases
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Bank moves funds between nostro/vostro accounts
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Settlement of interbank obligations
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Treasury liquidity balancing
⚠️ Important:
MT202 / pacs.009 does not represent customer money, even if a customer is indirectly involved.
🟨 CATEGORY 3 — Foreign Exchange, Money Markets & Derivatives (MT3xx)
🔹 Purpose
Used to confirm and settle financial market transactions, not payments for goods/services.
📌 Covers
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Foreign exchange (FX) deals
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Interest rate swaps
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Options
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Money market instruments
🏦 Who Uses This
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FX trading desks
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Investment banks
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Treasury & capital markets teams
✅ Real-World Use Cases
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FX spot/forward confirmations
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Swap settlements
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Hedging transactions
💡 These messages confirm deals, they do not replace payment messages.
🟧 CATEGORY 4 — Collections & Cash Letters (MT4xx)
🔹 Purpose
Used for paper-based and collection-driven payment instruments, often tied to documents.
📌 Message Types Explained
MT400 — Advice of Payment
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Notifies that payment has been made under a collection
MT405 — Clean Collection
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Collection without commercial documents
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Typically financial instruments only
MT450 — Cash Letter Credit Advice
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Notifies receipt of cash letter credits (bulk cheque processing)
MT455 — Cash Letter Credit Adjustment Advice
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Used to adjust previously advised cash letter credits
🏦 Who Uses This
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Trade finance departments
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Collection banks
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Clearing institutions
✅ Real-World Use Cases
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Documentary collections
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International cheque clearing
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Legacy trade settlement workflows
🟪 CATEGORY 5 — Securities (MT5xx)
🔹 Purpose
Used for settlement, delivery, reconciliation, and claims related to securities.
📌 Message Types Explained
MT541 — Receive Against Payment (RAP)
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Receiving securities only when payment is made
MT543 — Deliver Against Payment (DAP)
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Delivering securities in exchange for payment
MT559 — Paying Agent’s Claim
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Used to claim payment from an issuer or paying agent
🔁 MX (ISO 20022) Equivalents
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sese.020 – Securities settlement transaction instruction
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sese.023 – Securities settlement status advice
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sese.033 – Securities settlement transaction confirmation
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sese.036 – Securities settlement condition modification
🏦 Who Uses This
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Custodian banks
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Investment banks
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Clearing systems (Euroclear / Clearstream)
✅ Real-World Use Cases
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Bond settlement
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Equity delivery
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MTN and note settlement
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Paying agent claims
🟥 CATEGORY 7 — Documentary Credits & Guarantees (MT7xx)
🔹 Purpose
Used for trade finance instruments, not direct cash transfers.
These messages support obligations, not immediate payments.
📌 Message Types Explained
MT752 — Authorisation to Pay / Accept / Negotiate
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Authorizes a bank to honor a documentary credit
MT754 — Advice of Payment / Acceptance / Negotiation
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Confirms that action has been taken under an LC
MT756 — Advice of Reimbursement or Payment
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Requests or confirms reimbursement under trade finance structures
🏦 Who Uses This
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Trade finance banks
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Issuing banks
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Confirming banks
✅ Real-World Use Cases
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Letters of Credit (LC)
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Bank Guarantees (BG)
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Standby Letters of Credit (SBLC)
⚠️ These messages do not move money by themselves — they authorize or confirm obligations.
🧠 Key Strategic Takeaways
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MT ≠ Money by default
Some messages authorize, some confirm, some settle, some advise. -
Categories define intent
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Cat 1 → Client money
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Cat 2 → Bank money
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Cat 3 → Market deals
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Cat 4 → Collections
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Cat 5 → Securities
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Cat 7 → Trade instruments
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MX (ISO 20022) is the future, but MT is still operational worldwide