Digital currency explained: the pros and cons of the digital rouble, euro and pound

A central bank digital currency is not a cryptocurrency and not a new unit of money. It is a third form of the same money: cash, a balance at a commercial bank, and a balance at the central bank itself. One digital rouble always equals one rouble; one digital euro equals one euro. There is no exchange rate and there never will be, because there is nothing to exchange.

The difference is not the price but who owes you the money and what can be done with it. A bank balance is your bank's obligation to you. A digital rouble is the Bank of Russia's obligation, held on the regulator's own platform, with the bank merely providing access through its app. Every argument for and against these currencies grows out of that single technical detail.

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What has actually happened in Russia

On 1 September 2026 the digital rouble left the pilot stage. Wallets are opened by the largest banks — the twelve systemically important ones that between them handle over 80% of the payments market: Sberbank, VTB, Gazprombank, Alfa-Bank, T-Bank, PSB, Rosselkhozbank, Sovcombank, MKB, DOM.RF, Raiffeisenbank and UniCredit. Banks with a universal licence join on 1 September 2027, those with a basic licence on 1 September 2028.

Retailers face the same staircase. From September 2026 chains with annual revenue above 120 million roubles must accept it; from September 2027 the threshold drops to 30 million. Outlets turning over less than 5 million roubles, and places with no internet connection, are exempt entirely.

The Bank of Russia states the rules briefly. Transactions are free for individuals and carry minimal fees for business. No interest accrues on a balance, there is no cashback, and you cannot borrow in digital roubles. A confirmed transfer is irreversible — there is no chargeback of the kind a card gives you. Topping up a wallet from an ordinary account is capped at 300,000 roubles a month. A wallet requires an adult customer of a participating bank with a verified state-services account. Nobody is being moved across by force, and no opt-out declaration is needed: you can simply not open a wallet.

Europe and Britain: further off than the headlines suggest

The digital euro so far exists on paper and in laboratories. The ECB has closed its preparation phase and plans a pilot in the second half of 2027 — twelve months of testing with selected payment providers, merchants and Eurosystem staff. A first issuance is pencilled in for 2029, and only if the digital euro Regulation is adopted during 2026. The decision to issue will be taken separately, after the law is in place.

The digital pound is moving more cautiously still. The Bank of England remains in its design phase and is due to decide during 2026 whether to move to a build phase. Even with a yes, the earliest issuance would be in the second half of this decade, and Parliament will vote before any launch. A holding limit is planned here too, but no figure has been published — only that it would be high enough for day-to-day spending and a salary.

Who is ahead, and who walked away

The largest project in the world is China's e-CNY. By December 2025 it had processed more than 3.4 billion retail transactions worth roughly 16.7 trillion yuan. It remains a pilot, but a bigger one than every other project combined.

The United States went the other way. A ban on the Federal Reserve issuing a digital dollar passed the Senate on 23 June 2026 by 85 votes to 5, carried inside the 21st Century ROAD to Housing Act. That act became law on 10 July 2026: the president neither signed nor vetoed it, so after ten days it took effect automatically. The prohibition runs to 31 December 2030 and, unlike an executive order, can now be undone only by fresh legislation.

Globally, 146 countries and currency unions — more than 98% of world GDP — are exploring a digital currency. Seventy-seven are in development, pilot or launch, with 41 live pilots. Exactly three have launched one properly: the Bahamas, Jamaica and Nigeria.

The case in favour

Your payment does not depend on your bank's health. The money sits on the central bank's platform, not on a commercial balance sheet. A bank losing its licence does not touch the wallet — probably the one advantage over an ordinary account that nobody disputes.

It is cheaper than cards for merchants. Card acquiring takes a visible slice of retail turnover; digital-rouble tariffs are advertised as minimal. For a small business, a difference of a percentage point is a difference in margin.

Instant and final settlement. The transfer clears immediately, with no intermediary. The flip side of that is irreversibility, which belongs in the other column.

Traceable public money. A government can follow every sum it pays out and, in principle, tie it to a purpose — from a subsidy to a contract. As a budget-control tool, this genuinely works.

Access where there are no banks. This was the founding argument in countries with thin banking coverage. Whether it delivered is a separate question, and the answer is not encouraging.

The case against

Every transaction is visible to the issuer. Cash is anonymous, a card is visible to your bank, a central bank digital currency is visible to the central bank. That is not a conspiracy theory but a property of the architecture: a single ledger of transactions is the whole point of the design. How well the data is walled off, and who may see it, depends on each country's law rather than on the technology.

Programmability. Money on the platform can be technically restricted — by purpose, by expiry date, by who may receive it. In a "school-books only" subsidy that is convenient. In any other scenario it is a lever that cash does not offer. That, rather than economics, is why the American ban attracted 85 votes out of 90; the argument there was about surveillance.

Deposits leave the banks. If people move balances out of accounts and into wallets at scale, banks lose cheap funding and credit gets more expensive. Which is precisely why limits appear everywhere: 300,000 roubles a month in Russia, a debated holding cap in the euro area and in Britain. The limit protects the banking system, not the customer.

There is a quieter fourth point: a wallet pays no interest and no cashback. Keeping money there "just in case" is unrewarding by design — it is a settlement instrument, not savings.

Exchange rates, conversion and cash: what is not going to happen

There is no exchange rate and there will not be one. This is not a separate currency but a form of the same one. The Bank of Russia states plainly that issuing digital roubles does not increase the money supply — "only the structure of the money supply changes". The amount does not move; the form it sits in does. The same holds for the digital euro and the digital pound: one to one by definition, or they would stop being euros and pounds.

There is no mass conversion of old money into new. The transfer into a wallet is made by the person, voluntarily, and capped at 300,000 roubles a month. No decreed conversion, no rate, no deadline.

Cash is not being abolished. The Bank of Russia's own design works the other way round: cash is paid into a bank account, and money moves into the wallet from there. The three forms run in parallel and the choice stays with the individual. The ECB and the Bank of England describe their projects the same way — as a complement to cash, not a replacement.

Expiry dates, being cut off, and social scoring: where the fear has substance

This is the most common cluster of questions, and the honest answer is neither "it's all invented" nor "it's all true".

The technology for an expiry date genuinely exists. The digital rouble platform includes smart contracts, and the Bank of Russia describes their purpose in as many words: they "open fundamentally new possibilities in managing control over the targeted spending of budget funds". Such scenarios have already been worked through with the governments of Tatarstan and Chuvashia. This concerns public money — subsidies, contracts, earmarked payments — rather than the salary that lands in your wallet. But the instrument is real, and pretending otherwise is pointless.

On further limits the Bank of Russia has been specific: beyond the 300,000-rouble monthly top-up ceiling, "the introduction of other restrictions (limits) on the platform is not planned".

"Being switched off" is not a new power. Payments on an ordinary bank account can already be halted by a court order, a bailiff's demand or anti-money-laundering rules. A digital currency does not create that power — it concentrates it in one place, and that is the part that matters: where several banks used to be involved, one platform now suffices. That argument, rather than any economic one, is what produced 85 votes out of 90 in the US Senate for banning a digital dollar.

China and social scoring deserve a separate note. There is no public evidence linking e-CNY to the social credit system: the digital yuan is a payment instrument, and no such connection appears in descriptions of how it works. What does exist is programmability — smart contracts allow subsidies that can be spent only on named categories, and vouchers with a limited validity period. Chinese cities handed out exactly such consumption vouchers during the pilots. That is the real "expiry date", rather than the imagined one — but on a state voucher, not on the money in your account.

The practical conclusion is simple: the thing to watch is not the technology but the law written around it. The technology is the same in Beijing and in London; the rules on who may see the data, and on a person's right to stay out of the digital form, are not.

What the launches actually showed

Nigeria is the most honest lesson available. By February 2025 there were 13 million eNaira wallets, and 98.5% of them had never been used. The digital naira in circulation stood at about 18.31 billion naira — 0.37% of the country's currency, against 99.63% in physical cash. Four reasons are usually given: distrust of surveillance, strong private competitors such as OPay and PalmPay, a poor app at launch, and no clear benefit to the user.

The lesson is not that digital currencies do not work. It is duller than that: people change how they pay only when the new way gives them something the old one does not. Cards and instant transfers already deliver speed at no cost.

What it means if you live in Britain

Nothing in your wallet changes today. The digital pound is years away and the digital euro is not expected before 2029. What is happening now reaches you in three situations.

• You still hold a Russian bank account. A wallet is opened only through a participating bank and a verified state-services account, and it is a domestic settlement tool. It creates no new route for moving money to Britain.
• You are paid from Russia. Public-sector salaries, pensions and benefits can be paid in digital roubles, but only if the recipient chooses it; nobody's payments are switched over automatically.
• You run a business with Russian turnover. Then the revenue thresholds and connection dates are your calendar, not an abstraction.

Everything else is a question for the next three years, and two dates are worth watching: the Bank of England's decision on moving to a build phase during 2026, and the start of the digital euro pilot in the second half of 2027.