Businesses often use sub-accounts to alleviate the complexity of managing payments as they grow. Businesses with multiple international clients, subsidiaries, or internal functions often end up manually reconciling transactions across a patchwork of accounts. Each of these often come with differing restrictions and operating costs.
Sub-accounts offer a more structured and controlled approach. This article explains what they are, how they work, and which types of businesses benefit most from using them.
What are sub-accounts?
Sub-accounts are named virtual accounts that sit under a master account. This structure is often referred to as a parent/child relationship. Each sub-account has a unique virtual IBAN, which lets that sub-account send, receive and attribute funds. From the perspective of the sender, payments arrive and leave as if they're going to a distinct account. The difference between this and a traditional bank account is that this account sits within a larger payment infrastructure where funds are held.
Before we continue, here are a few key terms worth defining:
- Virtual IBAN – a unique account identifier assigned to a specific virtual account, which can receive payments just like a standard IBAN.
- Master account – the parent account from which sub-accounts are managed.
- Fund separation – the operational segregation of funds by entity, client or purpose within the account structure, for reconciliation and reporting purposes. Legal ownership of funds remains with the master account holder.
- Parent/Child Hierarchy – The organisational relationship where the Master Account (Parent) holder has oversight and control over the Sub-accounts (Children).
What sub-accounts are NOT?
It's important to note that sub-accounts are not separate traditional bank accounts with their own independent interfaces. Each sub-account may require an onboarding and approval process, and responsibility for the underlying client remains with the master account holder. However, it’s significantly more efficient than applying to a new bank for every account.
The bottom line
Businesses with multiple sub-accounts gain the structural clarity of multiple accounts without the administrative overhead of maintaining them independently.
Why do businesses open sub-accounts?
The advantages of sub-accounts come down to four core things: clearer fund separation, simpler reconciliation, consolidated oversight, and the ability to scale without restructuring.
Clearer fund separation
For businesses handling money from third parties, keeping funds clearly separated is an operational requirement. Sub-accounts make that separation more manageable, and less of a burdensome administrative task.
Some examples of where sub-accounts could be used are:
- Ring-fencing client balances.
- Isolating treasury from operational cash.
- Keeping different projects cleanly separated.
Simpler reconciliation
Because each sub-account has its own virtual IBAN, incoming payments are automatically attributable. The account structure significantly reduces the need to manually match transactions to a client or entity after the fact.
For finance teams managing high volumes of transactions across multiple entities, that's a meaningful reduction in manual effort. A Gartner survey found “73% of accountants report that their workload has increased because of new regulations” so many will be looking for tools to perform back-office tasks more efficiently. Using sub-accounts should also reduce the risk of reconciliation errors. This is a common concern amongst accountants with the survey also finding that 59% of accountants make several errors per month.
Real-time oversight at scale
Sub-accounts don't mean losing sight of the bigger picture. Finance and operations teams can easily view individual balances and access statements for each sub-account. Firms can also apply transaction monitoring, restrictions, and reporting at a more granular level.
A structure that grows with the business
New sub-accounts can be added as the business evolves. That could be when onboarding a new client, entering a new market, or separating a new internal function. You don't need to restructure your entire account setup each time. The infrastructure is already there.
Who uses sub-accounts? Key use cases by business type
This solution isn't a one-size-fits-all tool, but they are consistently useful for businesses operating at scale or with multiple payment flows. There is increasing demand for virtual accounts to assist with streamlining financial processes. According to market analysis, the “Virtual Account software market size… is expected to reach USD 3.5 Billion by 2033”. A Deloitte survey of CFOs found that “96% expect to see a rise in investment in digital technology and assets by UK companies over the next five years.” Here's how different types of businesses put sub-accounts to work.
Payment Service Providers (PSPs) and other fintechs
Sub-accounts can be used by PSPs to ring-fence client balances from their own operational funds.
For fintechs building their own payment platform, sub-accounts (typically provisioned via API) allow them to offer their users named, multi-currency accounts. That’s all without each of those users needing a direct banking relationship.
Where PSPs or fintechs use sub-accounts to service underlying clients, they must put appropriate controls in place to ensure transparency over underlying customers and payment flows, and to mitigate the risks of nested financial services activity.
Example: A B2B payments fintech wants to offer its merchant clients individual named accounts with their own IBANs, through their own platform. Managing sub-accounts via API, they can provision a virtual IBAN for each merchant and display live balances within their own interface.
Businesses with multiple subsidiaries
Groups operating across different regions or under different brands often find that a single business account becomes impractical as they grow. Sub-accounts might help treasury teams, used to manually splitting and reconciling transactions, with limited visibility across subsidiaries.
Each entity within a group can have its own virtual IBAN, with funds clearly attributed and trackable. At the same time, the parent company can see all the individual balances – so group reporting is streamlined.
Example: A media group with production companies in the UK and the UAE sets up a sub-account for each entity. You can track production budgets and revenue inflows independently, separate inter-company transfers clearly, and give the group finance team visibility of balances without exporting data from three separate platforms.
Businesses operating across multiple jurisdictions
Sub-accounts structured around specific regions can make cross-border operations more manageable for companies that collect or pay out in multiple currencies. Use cases might include international payroll, supplier payments, or receiving revenue from different markets.
Separation by territory has these potential benefits:
- Reduces the risk of unnecessary FX conversions.
- Makes local reporting easier due to holding balances in separate currencies.
- Gives treasury teams a clearer picture of currency exposure.
Of course, local regulatory requirements, sanctions exposure, and cross-border payment transparency obligations should still be considered when structuring sub-accounts.
Example: An international staffing company that pays contractors in 20 different countries sets up sub-accounts for teams in different regions, using different currency balances in each one. Payments go out in the right currency with no conversion needed. The finance team can then reconcile by region rather than sift through a single blended transaction history.
Purpose-driven accounts: treasury, payroll, and operations
Sub-accounts are useful for internal structure too and go beyond client-facing use cases. A well-structured sub-account setup can handle all of the following without the overhead of multiple standalone accounts.
- Separating treasury reserves from day-to-day operational spending.
- Keeping payroll funds ring-fenced ahead of payment runs.
- Isolating capital allocated to a specific project.
What to look for in a sub-account provider
Not all sub-account offerings are built the same. If you're evaluating providers, here are the things that matter:
- Multi-currency capability. If your business operates across currencies, your sub-accounts need to as well. Check which currencies you can hold and transact in, and how broad the currency coverage is. Is it just 5 or 6 major currencies or can you access more currencies than this?
- Payment rail access. Does the provider support the rails you need, e.g. Faster Payments, SEPA, and SWIFT? The right combination depends on where your payments are going and how quickly you want them to arrive.
- API access. For PSPs and fintechs, the ability to provision and manage sub-accounts through their own tech stack is essential. Look for a provider with a well-documented API that supports the workflows you need.
- Regulated infrastructure. Sub-accounts should sit within a fully regulated payment account structure. Understand how client funds are handled and what protections are in place.
- Onboarding support. Particularly if you're a PSP managing sub-accounts for underlying clients, it’s important to understand how onboarding works at the sub-account level. A provider with experience in complex business profiles will make that process considerably smoother.
Sub-accounts with IFX Payments
IFX Payments offers sub-accounts as part of its ibanq multi-currency platform. Each one comes with its own virtual IBAN and access to the full platform infrastructure: multi-currency balances across 40+ currencies, Faster Payments, SEPA and SWIFT payment rails, FX execution, and both individual and consolidated balance views. Features can be turned on or off as requested by the master account owner.
We have 20 years of experience working with complex business profiles – CSPs, PSPs, financial institutions, and multi-entity corporates – and understand the challenges that come with servicing many clients or subsidiaries. If your business has payment flows that traditional banks struggle to accommodate, we could be the right alternative.
Get in touch to find out if sub-accounts are the right fit for your business.
Frequently Asked Questions about Sub-Accounts
What is the difference between a sub-account and a bank account?
A bank account is a standalone account held directly with a bank, requiring its own application and onboarding. A sub-account is a virtual account that sits within an existing payment account infrastructure – typically provided by an e-money institution. It has its own virtual IBAN and can send and receive funds independently.
Can I open sub-accounts for my clients?
Yes, with the help of the sub-account provider who will onboard the underlying client. You, as the master account holder will remain responsible for managing the underlying client, whilst the provider (IFX in this case) will apply appropriate oversight controls. PSPs commonly use sub-accounts to give each of their clients a distinct virtual IBAN within a single platform.
Do sub-accounts have their own IBANs?
Each sub-account is assigned a unique virtual IBAN, which means it can receive payments independently and funds can be clearly attributed to the correct account or entity.
How many sub-accounts can I open?
The total number of sub-accounts can vary depending on the provider. Whilst there is usually no technical limit, in the case of IFX Payments, the provision and volume of sub-accounts are strictly governed by IFX Payments risk appetite, financial crime control framework, and operational capacity, and are subject to initial approval and ongoing review. Nonetheless, should each sub-account comply with these parameters, scaling businesses and PSPs should have plenty of room to grow.
What businesses benefit most from subsidiary accounts?
Businesses with multiple payment flows tend to get the most from sub-accounts. That includes:
- PSPs and fintechs.
- Multi-entity corporate groups.
- Businesses operating across several currencies or jurisdictions.
Any organisation that needs to separate funds by purpose – such as treasury, payroll, or project-specific accounts.
The contents of this article do not constitute financial advice and are provided for general information purposes only. Links to third-party websites are included for convenience only, and IFX Payments holds no responsibility for the content, services, products, or materials on those sites.