USD to SGD for business payments
A business paying a supplier in Singapore can convert US dollars to Singapore dollars (SGD) and pay the supplier's local account, or pay dollars into its USD account, because Singapore has no significant exchange controls. The cost of converting is the market rate plus the provider's margin and a payment fee, and the choice between currencies usually follows the invoice.
- The Monetary Authority of Singapore (MAS) manages the Singapore dollar against a trade-weighted basket of currencies within an undisclosed band, and may intervene to prevent excessive swings.
- The US government's Country Commercial Guide states that Singapore has no significant restrictions on remittances, foreign exchange transactions and capital movements.
- FAST, launched on 17 March 2014, moves Singapore dollars between participating banks almost instantly, and MEPS+ is the MAS Electronic Payment System for large interbank payments.
- DBS lists an outward telegraphic transfer commission of 1/8% (minimum S$10, maximum S$120) and the same rate as commission in lieu of exchange when no conversion takes place.
- Helm agrees pricing with each business in writing before the account opens, and shows the rate, the fee and the expected arrival before you confirm each payment.
The Singapore dollar at a glance
The Singapore dollar (SGD) is issued by the Monetary Authority of Singapore (MAS), which carries out all the functions of a central bank in Singapore. MAS runs monetary policy through the exchange rate rather than through an interest rate. It manages the Singapore dollar against a trade-weighted basket of the currencies of major trading partners and competitors, within an undisclosed target band, and may intervene in the foreign exchange market to prevent the rate from fluctuating too much.
A trade-weighted basket is a mix of currencies weighted by how much Singapore trades with each country. The US dollar is only one part of it, so the SGD rate against the dollar moves, and an SGD invoice can cost a US buyer more or less between order and payment.
| Item | Singapore dollar |
|---|---|
| Currency code | SGD |
| Issuer and central bank | Monetary Authority of Singapore (MAS) |
| Exchange rate regime (MAS description) | Managed against a trade-weighted basket within an undisclosed band |
| Exchange controls | No significant restrictions on remittances, foreign exchange transactions or capital movements |
| Instant SGD transfers | FAST (Fast and Secure Transfers), launched 17 March 2014 |
| Large-value interbank system | MEPS+, the MAS Electronic Payment System |
| Batch transfers | Inter-bank GIRO (IBG) |
Sources: MAS, Singapore's Monetary Policy; MAS, Payment Systems; International Trade Administration, Singapore Country Commercial Guide. Checked on 29 October 2026.
Exchange rules for paying and receiving SGD
Singapore is an open market for a buyer and a supplier alike. The US government's Country Commercial Guide for Singapore, last published on 22 August 2025, states that Singapore places no limitations on the reinvestment or repatriation of earnings and capital, and has no significant restrictions on remittances, foreign exchange transactions and capital movements.
In practice this means:
- A Singapore supplier may receive US dollars and keep them, with no deadline to convert them into Singapore dollars.
- You can pay either currency without a foreign exchange form on the Singapore side.
- The checks you meet are the banks' own due diligence on the payer, the purpose and the documents, not exchange controls.
That openness is why many groups in the region use a Singapore trading company to collect from buyers and pay factories in Indonesia, Vietnam or Malaysia, where exporters face repatriation rules at home. If you buy from such a company, pay the Singapore entity named on the invoice. Our guide to receiving USD in Singapore explains the supplier's side.
How an SGD payment reaches a Singapore supplier
MAS lists the systems that carry Singapore dollar payments. MEPS+, the MAS Electronic Payment System, is designated as a systemically important payment system for large interbank payments. FAST is an electronic funds transfer service that lets customers move Singapore dollars between participating banks almost instantly. Inter-bank GIRO (IBG) handles batch direct credits and debits. A payment from abroad arrives at the supplier's bank by SWIFT; a provider that converts inside Singapore can pay out over the local systems.
| Detail | SWIFT wire from abroad | Local SGD payout |
|---|---|---|
| Beneficiary name | Company name exactly as registered with ACRA and on the account | Same |
| Account number | The SGD account, or the USD account for dollar invoices | The SGD account |
| Bank identifier | Bank's full name, address and SWIFT code | Bank name, as the provider requests |
| Rail | SWIFT, through correspondent banks | FAST for near-instant transfers; GIRO for batches; MEPS+ between banks for large values |
| Reference | Invoice number | Invoice number |
Sources: MAS, Payment Systems; field list reflects SWIFT practice. Checked on 29 October 2026.
ACRA is the Accounting and Corporate Regulatory Authority, which registers Singapore companies. Check the supplier's bank code with our SWIFT code lookup.
What converting USD to SGD costs
Every dollar to Singapore dollar conversion is made of the mid-market rate (the midpoint between buying and selling prices at that moment), the margin between that midpoint and the rate you are given, and the fee for sending the payment. Ask for the SGD amount the supplier will receive and compare it with the mid-market rate to see the margin.
Singapore banks publish their transfer charges. DBS lists, for outward telegraphic transfers from a corporate account, a commission of 1/8% (minimum S$10, maximum S$120) and a cable charge of S$35 at a branch. When a foreign currency payment goes out without a conversion, for example dollars sent from a USD account, DBS charges commission in lieu of exchange of 1/8% (minimum S$10, maximum S$120). That charge exists because the bank earns no exchange margin on the payment. DBS also lists a minimum average daily balance of US$7,000 on its USD current account, with a US$30 monthly charge if it is not met.
Helm is a financial technology company, not a bank. Its US dollar account services are provided by Bridge Building, Inc. (NMLS ID 2450917), a licensed money transmitter, with customer funds held at Lead Bank. A Helm account holds dollars in your company's own name and sends international payments to suppliers by SWIFT, or by local rails in the supplier's currency where available, with the rate, fee and expected arrival shown before you send.
Helm agrees pricing with each business in writing before the account opens, and shows the rate, the fee and the expected arrival before you confirm each payment. See how Helm pricing works.
Pay a Singapore supplier in USD or SGD?
With no exchange controls on either side, the decision is commercial.
| Situation | Usually better | Why |
|---|---|---|
| Trading company invoicing goods in USD | USD | No conversion on your side; the supplier can hold dollars to pay its own suppliers |
| Local services: warehousing, logistics, staff, rent | SGD | The supplier's costs are in Singapore dollars |
| Supplier offers a better SGD price | SGD | Compare at your provider's all-in rate, not the headline rate |
| Supplier has only an SGD account | SGD | A dollar wire would be converted on arrival at the supplier's bank rate |
Source: Helm Editorial Team, based on MAS and DBS published information. Checked on 29 October 2026.
For Singapore companies holding dollars, see our guide to USD business accounts in Singapore.
Open a Helm account
USD, EUR and GBP accounts in your company's name, with a named account manager.
Open accountQuestions
Is the Singapore dollar pegged to the US dollar?
No. MAS manages the Singapore dollar against a trade-weighted basket of currencies within an undisclosed band, so its rate against the US dollar moves.
Does Singapore have exchange controls?
No significant ones. The US government's Country Commercial Guide states that Singapore has no significant restrictions on remittances, foreign exchange transactions and capital movements, and no limits on repatriating earnings and capital.
What is FAST in Singapore?
FAST (Fast and Secure Transfers) is an electronic funds transfer service, launched on 17 March 2014, that moves Singapore dollars between participating banks almost instantly.
What is MEPS+?
MEPS+ is the MAS Electronic Payment System, which MAS designates as a systemically important payment system. Banks use it for large interbank payments.
What is commission in lieu of exchange?
It is a charge some Singapore banks apply when a foreign currency payment goes out without a conversion. DBS lists it at 1/8%, with a minimum of S$10 and a maximum of S$120.
Should I pay a Singapore supplier in USD or SGD?
Pay in the invoice currency to the matching account. Trading companies often invoice goods in dollars, while local services are usually priced in Singapore dollars.
References
- Monetary Authority of Singapore: Singapore's Monetary Policy
- Monetary Authority of Singapore: Payment Systems
- International Trade Administration: Singapore Country Commercial Guide, Trade Financing
- DBS: Deposit account and transaction fees (corporate)
- DBS Bank: SME frequently asked questions on fees and charges
This guide is general information for businesses, not financial, legal or tax advice. Rules, fees and timings were checked against the sources listed on the review date and may change.