Off-balance-sheet custody supplied 41% of Wise’s customer-holdings growth

Wise's customer-holdings headline grew by $9.6 billion in one year, but the increase did not all enter the company's balance sheet. Customer holdings reached $43.5 billion in the second quarter of fiscal 2027, up from $33.9 billion. The total combined $32.1 billion of customer balances with $11.4 billion of assets under custody. Wise states that the custody assets are not recognised on its balance sheet. They increased by $3.9 billion, meaning that off-balance-sheet custody supplied 40.6% of the total customer-holdings increase even though it represented 26.2% of the closing total. The remaining $5.7 billion of growth came from customer balances recognised within the safeguarding and customer-liability framework.[1]

That distinction changes how the scale figure should be read. Customer holdings is a useful measure of the value customers have placed within Wise products, but it is not a synonym for company cash, safeguarded cash or interest-bearing customer balances. It combines two legal and accounting arrangements. Customer balances are recorded in the group accounts together with corresponding obligations to customers. Assets under custody belong to customers using Wise Assets and are held through custody structures; the trading statement explicitly says they are not recognised on Wise's balance sheet. Adding the categories is legitimate for a customer-relationship metric. Treating the total as one pool of funding or one interest-earning asset base would not be.[1][2]

Custody supplied a disproportionate share of the growth

The faster-growing component was custody. Assets under custody rose 52%, compared with 22% growth in customer balances. That does not establish that customers were moving money out of balances and into investment products: the statement does not publish matched transfers between the two categories. New customers, fresh deposits, withdrawals, investment flows and market valuation can all affect the closing stocks. The defensible finding is narrower. Wise's reported expansion increasingly included assets for which it provides access and custody-related services without recognising the underlying customer asset as a company balance-sheet asset.[1]

The accounting boundary also matters for risk analysis. A customer balance exposes the group to safeguarding, settlement, liquidity and operational requirements associated with moving money and returning funds. A custody asset presents a different chain involving the investment product, custodian arrangements, market value and redemption. Both can create service obligations and reputational risk, but they should not be merged into one claim about Wise's liquidity. The off-balance-sheet label does not mean the assets are concealed or unregulated. It describes who owns the asset and where it appears in the accounts.[1][2]

The interest line applies to a narrower denominator

Wise's income statement reinforces the separation. Interest income on customer balances was $238.2 million in the quarter, while interest expense on customer liabilities was $60.4 million. The net of those two disclosed lines was $177.8 million. One year earlier, the corresponding amounts were $202.5 million and $50.4 million, leaving $152.1 million. Net customer-balance interest therefore rose $25.7 million, or 16.9%, while the closing customer-balance stock rose 22%. The comparison is not a yield calculation because the income covers a quarter and the balance is a period-end stock, but it shows why the $43.5 billion holdings total is the wrong denominator for the interest economics.[1]

The expense line grew slightly faster than the income line in percentage terms—19.8% against 17.6%. That can reflect customer-pricing decisions, the currency and geographic mix of balances, policy rates and the instruments used to safeguard or invest funds. The public trading statement does not provide a complete currency-by-currency margin bridge. It would therefore be misleading to attribute the change to one rate decision or to claim that the net amount represents a risk-free spread. What the statement establishes is that the economic return attached to recognised balances grew more slowly than the customer-holdings headline and that custody assets should not be added to the interest denominator.[1]

Volume growth and holdings growth answer different questions

Wise also processed $71.7 billion of cross-border volume in the quarter, 22% more than a year earlier. Cross-border revenue rose 16% to $355.2 million as the take rate declined from 0.52% to 0.49%. The three-basis-point reduction helps explain why volume growth did not translate one-for-one into revenue growth. It does not explain the customer-holdings bridge: payments volume is a flow through the network, while balances and custody assets are stocks measured at a point in time. A customer can move a large amount during a quarter without retaining a large closing balance, or retain investments without generating equivalent payment volume.[1]

The same discipline applies to Wise's 12.5 million active customers. Customer count increased 20%, close to the growth in balances and volume, but the release does not provide a single average holding or revenue figure that is comparable across every product. Customers using only transfers, cards, cash balances and investment products generate different economics. Dividing total holdings or quarterly revenue by the active-customer count would produce a descriptive average, not a common unit margin. The company’s increasing product breadth makes that caveat more important, not less.[1]

What the records prove—and what they do not

The records support three conclusions. First, Wise's customer relationship expanded materially across payments, balances and custody. Second, custody assets accounted for a larger share of the increase than their share of the closing holdings total. Third, the interest economics relate to recognised customer balances rather than the combined holdings headline. The records do not establish that Wise is using custody assets as corporate funding, that customer money is missing, or that the growth was produced by one transfer between categories.[1][2]

The distinction also changes any stress test built from the headline. A liquidity analyst assessing Wise's ability to settle transfers should begin with the recognised balance and safeguarding structure, not add customer investment assets that remain in custody. A product analyst assessing engagement may reasonably use the wider holdings figure because it captures both cash and investment relationships. The same number can therefore be useful for one question and misleading for another. The review file's denominator rule is decisive here: identify the economic question first, then select the component that actually answers it.[1][2]

There is a related consolidation boundary. The fact that an asset is omitted from Wise's balance sheet does not mean the associated service disappears from the group accounts. Fees, operating costs, contractual obligations and potential liabilities connected with Wise Assets can still affect revenue and profit even though the underlying customer investments are not group assets. Conversely, recognising a customer balance does not make it shareholders' money: the corresponding customer liability and safeguarding obligations constrain its use. Those two points prevent both common errors—treating custody assets as invisible, and treating customer balances as freely deployable corporate funding.[1][2]

An alternative interpretation is strategically positive: the custody increase may show that Wise is becoming more than a transfer service and persuading customers to keep investment assets within its ecosystem. That could create durable engagement without requiring Wise to own the underlying assets. The limitation is that closing custody growth can include market appreciation as well as net subscriptions, and the trading statement does not separate those effects. A future flow bridge would allow readers to distinguish customer adoption from valuation.[1]

The next scheduled half-year results were due on 12 November 2026, four days after this review date. Those accounts can test whether the Q2 composition persists and may provide a fuller balance-sheet and revenue reconciliation. Until then, the most accurate reading of the headline is bounded: Wise oversaw $43.5 billion of customer holdings, but only $32.1 billion was presented as customer balances. The remaining $11.4 billion was custody value outside the group balance sheet, and it supplied about two-fifths of the year-on-year growth.[1][2]

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