Naples: Shopkeepers here still take more cash than card on an ordinary Tuesday, which makes the city an awkward test for a currency that exists only on a phone. Europe’s answer to that awkwardness is a number, and the number is the whole argument. Negotiators are converging on a holding limit of around 3,000 euro per person for the digital euro, and everything the project can or cannot do follows from it.
Parliament cleared its negotiating mandate on 23 June by 416 votes to 169 with 22 abstentions, after the economic affairs committee backed the text 43 to 14. Trilogues opened on 13 July. The institutions want the file finished before the year ends, and the European Central Bank has begun pilot work with selected payment providers in parallel. The political momentum is real. The design tension has not moved.
Why a cap sits at the centre of the design
Central bank money held directly by the public competes with commercial bank deposits. Deposits fund lending. If households could shift unlimited balances into an account at the ECB, banks would lose their cheapest funding in normal times and lose it fastest in a panic, when a click would replace a queue. The cap exists to prevent that. It is a deliberate handicap on the product, imposed to protect the system around it.
Set the ceiling too low and the digital euro becomes a novelty. A wallet that cannot hold a month’s rent will not become anyone’s default payment method, and merchants will not invest in acceptance for an instrument customers rarely reach for. Set it too high and supervisors inherit a faster bank run. The negotiators are searching for a figure that leaves the product useful and the banking system intact, and there is no reason to assume both conditions can be met by the same number.
The institutions have handled this by refusing to fix it. The emerging approach writes a ceiling into law and lets the ECB set and adjust the operative limit beneath it. The Council favours that discretion strongly. Parliament wants tighter guardrails. The compromise is sensible in that a fixed statutory figure would age badly, and uncomfortable in that it hands a politically loaded parameter to an unelected institution.
The distribution problem nobody has solved
Even a well-calibrated cap leaves the harder question untouched. The digital euro reaches the public through commercial banks, and commercial banks have little reason to want it. They must build interfaces, run onboarding and handle compensation under a fee regime that caps what they can charge, in order to distribute an instrument that draws balances off their own books.
The legislation compensates for this with mandatory basic services provided free to users, regulated fees for extras, and a capped merchant charge. It also secures fair access to mobile hardware for payment providers, a provision aimed squarely at the two firms controlling smartphone payment hardware. Those are useful fixes. None of them gives a bank a commercial reason to promote a competing product enthusiastically, and enthusiasm is what determines adoption.
The strategic case remains the strongest part of the file. Most card payments in the euro area clear through non-European networks, and that dependency looks different now than it did a decade ago. A public payment rail that works offline and does not require a foreign intermediary answers a genuine vulnerability. Payment sovereignty is the argument that moved the Parliament, not consumer demand.
What follows is a test of whether a defensive rationale can carry a consumer product. Europeans did not ask for this. They asked for payments that work, and existing ones largely do. The digital euro must therefore win users on convenience while carrying a cap designed to limit how convenient it can become.
Legislators can finish the text by December. Adoption runs on a slower clock, and the rollout period stretches two years past entry into force. The number will be argued over long after the law is signed.





