What is the difference between physical and notional cash pooling?

Physical pooling physically transfers funds between accounts to concentrate cash in a single header account — the money actually moves, creating intercompany positions. Notional pooling leaves each account's balance where it is and offsets the balances only for the purpose of calculating interest, so no cash moves and entity balances are preserved. Physical gives real concentration and control; notional preserves autonomy but depends heavily on bank, legal and tax support.

What is zero balancing vs target balancing?

Both are forms of physical pooling. Zero balancing sweeps each participating account to zero every day, moving all cash to the header account. Target balancing sweeps to a defined target balance instead of zero, leaving a set amount in the local account. Zero balancing maximizes concentration; target balancing leaves working balances where they're needed.

Is notional pooling still allowed?

It depends on jurisdiction and bank. Notional pooling relies on the bank offsetting balances and on the legal right of set-off, and some banks have reduced or withdrawn cross-border notional pooling due to regulatory capital treatment. It remains available in many places, but it must be checked with your bank and advisors for your specific structure — don't assume it's available everywhere.

Physical vs Notional Cash Pooling: How to Choose

Physical cash pooling moves funds between accounts to concentrate cash in one place; notional pooling offsets account balances to optimize interest without moving any money. Physical pooling gives you real, consolidated cash and tight control — at the cost of intercompany positions and daily movements. Notional pooling preserves each entity's balance and autonomy — at the cost of depending heavily on your bank's support and on legal and tax treatment that varies by jurisdiction. The right choice depends on your structure, your banks, and your appetite for intercompany and cross-border complexity.

Physical cash pooling: concentration

In a physical pool (also called cash concentration), balances are physically swept between participating accounts and a central header account so the group's cash sits in one place, ready to fund, invest or offset borrowing. Because money actually moves between legal entities, each sweep creates an intercompany loan that must be tracked, priced and documented.

Physical pooling comes in two main flavours:

Zero balancing — every participating account is swept to zero each day; all cash concentrates in the header. Maximum concentration, but local accounts start each day empty.
Target balancing — accounts are swept to a defined target (not zero), leaving a working balance in the local account. Less concentration, but operationally gentler where entities need a buffer.

Notional cash pooling: offset

In a notional pool, no cash moves. Each account keeps its own balance, and the bank simply offsets the credit and debit balances across the pool to calculate net interest — so a group can effectively use surplus in one account against an overdraft in another without an intercompany transfer. Entity balances and autonomy are preserved, and there are no intercompany loans to administer.

The catch: notional pooling depends entirely on the bank offering it and on the legal right of set-off holding up in each jurisdiction. Regulatory capital treatment has led some banks to restrict or withdraw cross-border notional pooling, so availability is not guaranteed.

Comparison

	Physical pooling	Notional pooling
Does cash move?	Yes — swept to a header account	No — balances offset only
Concentration	Real, consolidated cash	Virtual; cash stays in accounts
Intercompany	Creates intercompany loans	None
Entity autonomy	Reduced (accounts swept)	Preserved
Admin burden	Intercompany tracking, pricing, docs	Lower operationally
Dependence	Works broadly	Heavily bank / legal / tax dependent
Typical use	Concentrate to fund/invest/offset debt	Optimize interest, keep balances local

When to use which

Physical when you want genuine cash concentration — to fund centrally, invest surplus, or reduce gross external borrowing — and you can administer intercompany positions. It's the backbone of most in-house-bank structures.
Notional when you want interest optimization without disturbing entity balances or creating intercompany loans, and your bank supports it in your jurisdictions with acceptable tax and legal treatment.
Both — many groups run physical concentration domestically and notional (or none) cross-border, shaped by what each bank and jurisdiction allows.

What usually goes wrong

Underestimating intercompany. Physical pooling silently generates intercompany loans; without proper tracking, pricing (arm's length) and documentation, you create a tax and audit problem.
Assuming notional is available. Structures designed around cross-border notional pooling that a bank then restricts or withdraws — check availability and legal set-off before you design around it.
Tax and legal blind spots. Withholding tax on intercompany interest, thin-capitalization rules, and the enforceability of set-off vary by country; pooling structures need tax and legal review, not just a treasury design.
Cross-border and currency complexity. Multicurrency and cross-border pooling add FX, regulatory and repatriation constraints that a single-country design ignores.

Get the structure, the intercompany framework and the tax/legal review right up front, and pooling becomes a quiet, powerful liquidity tool. Skip them, and it becomes the thing your auditors and tax advisors ask about for years.

Part of the Corporate Cash & Liquidity Management guide. See also cash positioning vs forecasting and what is an in-house bank. The newsletter sends one finance-systems pattern every two weeks.