The B2B Trust Tax: What It Costs European Business to Verify a Counterparty

A wholesaler in Rotterdam is about to wire €60,000 to a supplier in Naples it has dealt with twice before. The invoice looks right. The bank details are new. Confirming that the account belongs to the company on the letterhead, that the company is real, solvent, and the same entity it traded with last quarter, should be the cheapest step in the transaction. In practice it is the one nobody can price.

That is the shape of the problem. No European balance sheet carries a line item labelled "trust." No invoice arrives for the cost of not knowing who you are dealing with. The cost is real, and large, but it is paid in fragments scattered across the life of every cross-border deal: a compliance hour here, a delayed payment there, a fraud loss, a contract quietly declined. No one adds them up, which is exactly why no one escapes them.

No honest account produces a single number for the European trust tax, and the reason why is the first finding worth stating plainly.

Why there is no single number

Every widely cited figure for the cost of business mistrust comes from a different instrument measuring a different thing. Debt-collection firms survey late payments. Trade-credit insurers count attempted fraud. Banking bodies tally realised losses on reported cases. The European Commission models the administrative burden its own draft directives would remove. Academic teams estimate the value of transactions that never happened. These are not interchangeable, and they do not share a denominator.

Stacking them into one headline figure produces a number that looks authoritative and means nothing. A late-payment survey and a fraud-loss tally double-count where they overlap and miss what neither looks at. A Polish opportunity-cost model cannot be added to a UK realised-loss report. The honest unit of analysis is not a total. It is a portfolio.

So the cost is set out here as a stack: four points in the life of a transaction where the inability to cheaply verify a counterparty extracts a price. Read down the stack, not across it.

The Trust Tax Stack

The friction appears at four stages, in the order a deal moves through them. Before the deal, in the cost of checking a counterparty exists and is what it claims. During the deal, in the working capital tied up when payment runs late. After the deal, in the losses when a payment is redirected to a fraudster. Around the deal, in the trade that never happens because the counterparty could not be trusted in the first place.

The Commission put a price on just the slice its directive would remove: roughly €437 million per year in recurring administrative cost, against around €311 million in one-off spending to implement it[^7]. That €437 million is not the total cost of cross-border verification friction. It is the recurring sliver one piece of legislation would claw back, which makes it a floor rather than a ceiling. The directive was adopted in amended form in December 2024 and applies from 2028, so the friction it describes is still fully present today.

Stage two — during the deal

Once a deal is underway, uncertainty about a counterparty's reliability shows up as time, specifically the time money spends not arriving. Intrum's 2025 survey of roughly 9,000 European executives across 25 countries calculated that 11 per cent of business revenue across the continent is paid late every year, and that companies now lose 73 working days, more than a quarter of the working year, chasing payments they are owed[^1]. Late payment is not a pure trust cost; cash-flow management and market power play their part. But the willingness to extend credit, and the cost of insuring and chasing it, tracks directly to how confidently a supplier can assess who it is dealing with.

The trend is moving the wrong way. The EU Payment Observatory, run for the European Commission, found that the share of EU enterprises reporting problems caused by late payment rose from 43 per cent in 2022 to 47 per cent in 2023 — the steepest single-year increase in five years, erasing the improvement made during the pandemic and returning to 2019 levels[^2].