Multi-Currency Business Accounts: A Guide for Singapore Businesses Going Global

When your business operates only in Singapore, a single SGD account is usually enough. But the moment you start accepting payments from overseas customers, paying international suppliers or collecting from foreign marketplaces, currency becomes a daily operational question.

The core problem is mismatch: you receive in one currency, you owe in another, and every conversion in between carries a cost. Traditional banks tend to convert at whatever rate they set that day, add a spread on top, and often charge a separate transfer fee as well. If you are converting frequently and in meaningful amounts, those costs compound fast.

Holding multiple currencies lets you sidestep unnecessary conversions. If you receive USD from a US customer and later pay a USD-denominated supplier, you can pass those funds through without converting at all. When you do need to convert, doing it once — at a transparent, predictable rate — is better than converting multiple times through a chain of transactions. Fewer conversions means lower costs and less exposure to short-term exchange rate moves. For businesses at the point of international expansion, this is often the first lever worth pulling.

A multi-currency business account lets you hold, receive and send money in different currencies from a single platform, without needing a separate bank account for each one. Instead of converting every incoming payment to SGD on arrival, you park it in the currency it arrived in and decide later what to do with it.

With one.ooo, the account sits on the same platform as your payment acceptance, so inbound card payments, PayNow collections and platform payouts all feed into the same place. That means less reconciliation work and a cleaner view of where your money actually is at any given moment.

When you are ready to convert, the FX fee is 1.00% above the interbank rate — a transparent benchmark you can look up independently, rather than an internal rate set by the provider. When you need to move funds locally, an outgoing local transfer costs USD 2.00. SWIFT transfers are also available for international wires where local rails do not reach, though for the majority of day-to-day flows, local transfer rails are faster and cheaper. The combination of holding, converting and moving money from one dashboard makes it a practical tool for any Singapore business with international exposure.

Knowing exactly which currencies are supported matters — it tells you whether your key corridors are covered before you commit to a setup.

The one.ooo multi-currency business account holds exactly 13 currencies:

SGD, USD, AUD, CAD, CHF, CNY, EUR, GBP, HKD, JPY, NOK, NZD, SEK.

That list covers the currencies most relevant to Singapore-based businesses: the major trading pairs (USD, EUR, GBP), the Asia-Pacific region (AUD, HKD, JPY, NZD, CNY), key commodity and Nordic currencies (CAD, CHF, NOK, SEK), and of course Singapore Dollar as the home base.

For e-commerce sellers, SaaS businesses and anyone receiving from international card networks, the major currencies are all there. For businesses with supplier relationships in Europe, Australia or Japan, those flows are covered too. If your business operates primarily within these corridors, you should be able to hold incoming funds in the original currency and convert or pay out at a time that suits you — rather than being forced into a conversion the moment the money lands.

One of the most common frustrations with multi-currency products is fee opacity — a provider advertises a good headline rate but adds a marked-up FX spread on top, and the true cost only becomes clear on the statement.

With one.ooo the cost structure is straightforward. FX conversion is charged at 1.00% above the interbank rate. The interbank rate is the mid-market reference rate published by financial data providers, so you can look it up and do the maths yourself before you convert. There is no additional spread layered on top, and no minimum conversion amount.

For outgoing transfers, a local payment costs USD 2.00 regardless of amount. That flat fee makes it easy to plan: if you are sending USD 5,000 to a local counterparty, the transfer cost is two dollars. SWIFT outgoing transfers are priced at USD 28.00 flat for corridors where local rails are not available. There is no setup fee and no monthly fee on the account — you pay only when you transact. If you are processing meaningful volume, volume discounts are available; Talk to the one.ooo team about custom rates that fit your business.

The real efficiency gain from a multi-currency account is not just lower conversion costs in isolation — it is what happens when the account is connected to your payment acceptance and payout flows on the same platform.

With everything on one.ooo, a card payment from a US customer, a PayNow collection from a local buyer and a payout to a marketplace partner all land in the same dashboard. You can see your balances across all 13 currencies in one place, convert when you want to, and push funds out via local rails or SWIFT without switching tools.

For online businesses, this means your checkout, your FX and your outgoing payments are all managed together. For platforms and marketplaces running batch payouts or API-triggered disbursements, having the payout rail and the currency account on the same platform removes a layer of integration and reconciliation overhead. One login, one reporting view, one fee schedule — instead of a patchwork of providers each adding their own cost layer. As you add new sales markets, the same setup scales with you rather than requiring a new account in each country.

Regulated payment services are provided by Airwallex (Singapore) Pte. Ltd., a MAS-licensed Major Payment Institution under the Payment Services Act 2019. ONE Payments acts as a technology provider and merchant service facilitator.

ONE Payments Pte. Ltd. (UEN 202324291R) is registered in Singapore and operates as a technology and merchant services platform. The multi-currency account capabilities, FX conversion, transfer rails and payment acceptance features described on this page are provided by ONE Payments. Payment processing, fund holding and settlement of regulated payment activities are carried out by the licensed regulated partner named above. Information on this page is provided for general guidance only and does not constitute financial, legal or regulatory advice. Exchange rates and fees quoted are current at the time of writing — please confirm the latest pricing and the services available for your specific business when onboarding. For details about your setup or to discuss volume pricing, contact the ONE Payments team.