Cross-Border Cash Pooling: Physical, Notional and In-House Banks

The problem: cash in the wrong place

A multinational company can be profitable and still short of cash in the country where it needs to pay. Meanwhile another subsidiary sits on idle balances in a different currency, earning little. Cross-border liquidity management is the discipline of finding that cash, moving it or netting it, and doing so without breaking tax, banking or currency rules.

Three questions run through every decision. Where is the cash? What does it cost to use it? And is the company legally allowed to move it? The answers depend on structure, jurisdiction and bank, and the right design for a company with operations in Europe is rarely the right one for a company selling into several emerging markets.

Physical pooling versus notional pooling

	Physical pooling (cash concentration)	Notional pooling	In-house bank
How it works	Balances from subsidiary accounts are swept into a central account, often daily	Balances stay where they are; the bank offsets debit and credit positions to calculate interest	A group entity acts as the group's bank, holding accounts for subsidiaries
Cash actually moves?	Yes	No	Yes, as internal ledger entries and payments
Intercompany loans created?	Yes, which brings transfer pricing and tax questions	Generally no, but the bank takes cross-guarantees	Yes, managed centrally
Main constraints	Tax, thin capitalisation and local rules on lending	Not offered in every country, and many banks have scaled it back because of capital and leverage costs	Needs treasury expertise, systems and sometimes regulatory approval

Notional pooling is attractive because balances do not move, but its availability is limited. It is generally unavailable in some large markets, with the United States the usual example, and since Basel III banks have had to hold capital against the gross exposures behind the netting, which has made some of them less willing to offer it. Physical pooling is more widely available but creates intercompany loans, and loans between related companies attract tax scrutiny.

Beyond pooling: the other tools

• Zero-balancing and target-balancing. Zero-balancing sweeps every account to zero at the end of the day. Target-balancing leaves a set amount in each account so local payments can still be made.
• Payments-on-behalf-of and collections-on-behalf-of (POBO and COBO). The central treasury makes and receives payments in the name of subsidiaries, which reduces the number of bank accounts and the cash held in them.
• Virtual accounts. A single physical account carries many virtual sub-accounts, each with its own reference, which simplifies reconciliation across entities and customers.
• Multicurrency accounts. Holding balances in the currency they are earned in can avoid unnecessary conversions, but exposes the group to exchange-rate movements until the cash is used.
• FX swaps and forwards. Used to move liquidity between currencies without taking on currency risk.

Tax and legal rules that decide the design

Transfer pricing. Loans between group companies must be priced as if between unrelated parties, a principle set out in the OECD Transfer Pricing Guidelines. The OECD added specific guidance on financial transactions, including cash pooling, in 2020. A pooling arrangement should therefore document how interest is calculated and why it reflects market conditions.

Interest limitation and withholding tax. Many countries cap the interest a company can deduct and charge withholding tax on interest paid abroad. In the European Union, anti-tax-avoidance rules generally limit net interest deductions to 30 percent of earnings before interest, tax, depreciation and amortisation. A structure that looks efficient on cash can be expensive after tax.

Capital and exchange controls. Some countries restrict the transfer of funds out of the country, and the IMF publishes an annual report on exchange arrangements and restrictions that is a useful starting point. China, for example, has dedicated rules for cross-border cash pooling in renminbi, and several other markets limit intercompany lending or require approval. This is where "trapped cash" comes from: money that is available on paper but cannot be moved efficiently.

Visibility: data and technology

None of this works without knowing balances in real time. Banks now provide account information through APIs and through ISO 20022 messages such as the camt series, which carry richer data than older formats. A treasury management system can combine these feeds into a single view and a short-term forecast. Real-time data also supports better decisions about when to sweep, when to hedge and when to use a credit line rather than move cash.

Risks to manage

• Counterparty concentration. A single bank holding pooled cash is a concentrated exposure. Many treasuries split balances among several banks and limit exposure by credit rating.
• Legal enforceability. Netting and set-off rights vary by jurisdiction. Get local legal advice on whether the structure holds if a bank or subsidiary becomes insolvent.
• Operational risk. Cut-off times, holidays and time zones can leave sweeps unexecuted. Document fallback procedures.
• Currency risk. Moving cash between currencies creates exposure; decide in advance who bears it, treasury or the business unit.

How to approach a redesign

1. List all bank accounts, balances and currencies by entity and country.
2. Mark the markets where cash cannot move freely, and treat those separately.
3. Choose the structure for each region rather than one design for the world. Regional pools are often easier than a single global one.
4. Check the tax effect with advisers before implementing, including interest, withholding and transfer pricing documentation.
5. Build visibility first, since a good forecast usually releases more cash than a new structure.

Frequently asked questions

Is notional pooling better than physical pooling?

Neither is better everywhere. Notional pooling avoids moving cash and creating intercompany loans, but it is available in fewer places and carries cross-guarantees. Physical pooling is simpler to obtain but brings intercompany loans and the tax attention that comes with them.

What is an in-house bank?

It is a group entity that provides banking-style services to other group companies, such as accounts, intercompany lending and payments. It gives the treasury tight control over cash and can reduce the number of external banking relationships, but it requires systems and expertise.

How do capital controls affect cash pooling?

They can prevent subsidiaries in some countries from joining a cross-border pool at all. In those markets, companies usually rely on local solutions, such as dividends, local lending or approved intercompany arrangements.

Does ISO 20022 matter for liquidity management?

Yes, mostly through data. Richer messages give treasuries better reporting on balances and transactions, which improves forecasting and reconciliation.

Sources and further reading

• OECD, Transfer Pricing Guidelines for Multinational Enterprises and Tax Administrations, including the 2020 guidance on financial transactions, on oecd.org.
• International Monetary Fund, Annual Report on Exchange Arrangements and Exchange Restrictions, on imf.org.
• European Union, Anti-Tax Avoidance Directive (2016/1164), on eur-lex.europa.eu.
• Association for Financial Professionals, treasury research and practice guides, on afponline.org.

Tax, banking and exchange-control rules change and vary by country; confirm them with qualified advisers before acting. This article is general information, not tax, legal or financial advice.