Correspondent Bank Singapore: The Hidden Middleman Behind Your Overseas Wire Transfer
A correspondent bank is an intermediary bank that processes an international wire transfer on behalf of a sending or receiving bank when the two banks don’t have a direct relationship with each other — a common, often invisible step in Singapore overseas transfers that can add extra fees and delay.
Not financial advice. All figures for educational reference only. Data as at August 2026.
Key Takeaways
- Correspondent banks act as a bridge when your Singapore bank and the recipient’s overseas bank aren’t directly connected, routing the payment through the SWIFT network.
- Each correspondent bank in the chain can deduct its own handling fee from the transferred amount, which is why the amount received abroad is sometimes less than expected.
- A wire transfer can pass through one, two, or more correspondent banks depending on the currency pair and the two banks involved.
- Fintech remittance apps like Wise often avoid the correspondent banking chain entirely by using local bank accounts in each currency, which is why they’re typically cheaper and faster.
- You can request the SWIFT/BIC code and ask your bank in Singapore whether OUR, SHA, or BEN fee options are available to control who bears correspondent bank charges.
What Is Correspondent Bank Singapore?
When you send money from a Singapore bank to a bank account overseas, the transfer doesn’t always move directly from your bank to the recipient’s bank. Banks maintain direct relationships (called “nostro/vostro” accounts) with only a limited number of foreign banks. If your Singapore bank doesn’t have a direct relationship with your recipient’s bank — particularly common for smaller banks or less common currency corridors — the payment is routed through one or more correspondent banks that do have relationships with both ends.
This entire process runs over the SWIFT network (Society for Worldwide Interbank Financial Telecommunication), which is essentially a global messaging system that lets banks instruct each other to move money, rather than a payment system itself. Each bank in the chain (sending bank → correspondent bank(s) → receiving bank) processes and forwards the payment, and each may deduct a handling fee before passing the remainder along.
For a Singapore sender, this means the amount that arrives in the recipient’s account can sometimes be less than what was sent, simply due to fees taken by correspondent banks along the way — a phenomenon separate from, and in addition to, any exchange rate conversion or fee your own bank charges upfront.
How Does Correspondent Bank Singapore Work in Singapore?
Singapore banks like DBS, OCBC, and UOB typically let you choose who bears the correspondent bank fees when initiating an overseas wire transfer via SWIFT: OUR (you, the sender, pay all fees including any correspondent bank charges, so the recipient gets the full amount), SHA (shared — you pay your bank’s fee, the recipient’s bank and any correspondent banks deduct their own fees from the amount received), or BEN (beneficiary pays all fees, deducted from the transferred amount).
Most retail transfers default to SHA, meaning the recipient may receive slightly less than the amount sent due to correspondent bank deductions along the way — this is a common source of confusion when people wire a round number like S$5,000 (converted) and the recipient reports receiving a bit less.
Newer remittance-focused fintechs such as Wise deliberately avoid the correspondent banking chain by holding local currency accounts in major markets and settling transfers domestically at each end, rather than routing through SWIFT correspondent banks — a major reason these services are often cheaper and faster than a traditional bank wire for common currency corridors.
Correspondent Bank Singapore Example
Mr Kumar wires S$10,000 (converted to USD) from his Singapore bank to a relative’s account in a country where his bank has no direct relationship. The payment is routed through two correspondent banks before reaching the recipient’s bank.
Because the transfer was set to SHA (shared fees), each correspondent bank deducts a small handling fee (commonly US$10–US$25 each) before passing the funds along. His relative ends up receiving roughly US$30–US$50 less than the converted amount Mr Kumar actually sent, purely due to correspondent bank deductions — separate from the exchange rate his own bank applied at the point of sending. Had he selected OUR instead, his own bank would have absorbed these charges upfront, ensuring his relative received the full converted amount.
Advantages of Correspondent Bank Singapore
- Enables transfers to virtually any bank worldwide. Correspondent banking is what allows Singapore banks to reach banks they have no direct relationship with, covering nearly every country.
- Well-established, regulated infrastructure. The SWIFT correspondent banking network is heavily regulated and has processed cross-border payments securely for decades.
- Fee transparency is improving. Many Singapore banks now disclose estimated total fees, including likely correspondent charges, before you confirm a transfer.
- Fee-payer options give some control. Choosing OUR, SHA, or BEN lets you decide who absorbs correspondent bank costs, even if it doesn’t eliminate them.
Risks and Limitations
- Unpredictable total cost. Because the correspondent bank chain isn’t always visible to the sender, the exact fees deducted along the way can be hard to know in advance.
- Slower processing times. Each additional correspondent bank in the chain can add a business day or more to how long the transfer takes to arrive.
- Recipient may receive less than expected. Without selecting OUR, the recipient bears the correspondent bank deductions, which can cause confusion or shortfalls, especially for time-sensitive payments.
- Less relevant currency corridors see more hops. Transfers to countries or currencies with fewer direct banking relationships to Singapore may pass through more correspondent banks, increasing total fees.
Correspondent Bank Wire vs Fintech Remittance (e.g. Wise)
| Feature | Traditional Correspondent Bank Wire (SWIFT) | Fintech Remittance (e.g. Wise) |
|---|---|---|
| Routing method | Through 1+ correspondent banks via SWIFT | Local bank accounts in each currency, no correspondent chain |
| Fee predictability | Lower — correspondent fees may be unknown upfront | Higher — total fee shown upfront before sending |
| Speed | 1–5 business days depending on corridor and hops | Often same-day to 1–2 business days |
| Fee payer options | OUR / SHA / BEN choice available | Sender pays a single transparent fee |
| Best suited for | Large or less common currency transfers, formal banking needs | Common currency corridors, personal and smaller business transfers |
Source: The Kopi Notes analysis, MAS/CPF Board/LIA Singapore public guidance, August 2026.
The Bottom Line
Correspondent banks are the invisible connective tissue of international wire transfers from Singapore, bridging banks that don’t have direct relationships — but each hop in that chain can quietly deduct a fee, which is why fintech alternatives that skip correspondent banking entirely are often cheaper for common transfer corridors.