ISO 20022 and CBDCs: One Standard, Two Currencies

One hundred and forty-six countries and currency unions are now exploring central bank digital currencies. That number, per the Atlantic Council's May 2026 CBDC tracker, covers over 98% of global GDP. Alongside those projects sits the messaging standard banks are moving their payments to: ISO 20022.

The overlap between CBDCs and ISO 20022 is real but often overstated. ISO 20022 is a data format. The Bank of Japan's research describes it as contributing to interoperability for digital currencies, including CBDCs, but no primary source we found says that nearly every CBDC project uses it. If you hold any of the 8 coins most often linked to ISO 20022 that we track on WM589, this connection matters, but not as much as the price speculation flooding your feed suggests.

Here is what is actually happening, what the ECB's 2025 change requests do and do not show, and which crypto projects touch CBDC or central bank experiments.

CBDCs: where things actually stand

Three countries have fully launched retail CBDCs: the Bahamas, Jamaica, and Nigeria. The Atlantic Council counts 41 CBDC pilot projects worldwide and 77 countries in the advanced phase of exploration (development, pilot, or launch) as of May 2026. It also notes that all three launched CBDCs are focused on expanding domestic reach despite slow adoption.

India's retail e-rupee in circulation rose to Rs 1,016.46 crore at the end of March 2025 from Rs 234.04 crore a year earlier, according to the Reserve Bank of India's annual report. That is roughly a 334% increase. China's digital yuan is still the largest CBDC pilot in the world. By December 2025, the Atlantic Council reports, retail e-CNY had processed more than 3.4 billion transactions worth roughly 16.7 trillion renminbi (about $2.3 trillion). In January 2026 the People's Bank of China reclassified e-CNY as deposit liabilities, which the Atlantic Council says could signal a shift away from digital cash.

The U.S. is the outlier. Executive Order 14178, signed January 23, 2025, prohibits agencies from taking action to establish, issue, or promote a CBDC in the U.S. or abroad and terminates ongoing agency CBDC plans. The Atlantic Council says the New York Fed continues wholesale cross-border research through Project Agora. In the UK, the Bank of England says it is developing a detailed digital pound blueprint ahead of a decision on next steps in 2026, has not decided whether to introduce a digital pound, and would issue one no earlier than the second half of this decade.

This is not purely theoretical. The Atlantic Council reports real settlement volume on cross-border projects, covered below. The question is what those rails are built on.

How ISO 20022 relates to CBDCs

ISO 20022 is a data format. Banks use it to structure payment messages. SWIFT, which went live in 1977, moved cross-border payment instructions from its legacy MT format to ISO 20022 after 22 November 2025, per its end-of-coexistence guide.

CBDC interoperability depends on shared data conventions. The Bank of Japan's 2022 research annex argues that ISO 20022 also contributes to interoperability of digital currencies, including private digital money and CBDC. An earlier Bank of Japan annex from 2021 studies IT standardization related to digital currencies as part of its CBDC design work.

Two adjacent sources are easy to misread. The BIS Committee on Payments and Market Infrastructures published harmonised ISO 20022 data requirements in October 2023, but that report is about cross-border payments generally, not CBDCs specifically. The G20 cross-border payments roadmap, in the Financial Stability Board's 2023 progress report, covers message standards and data exchange as a priority theme and says more than 100 jurisdictions were already actively using ISO 20022 messages. Neither source says CBDC designs assume ISO 20022 throughout, and we found no primary source for a claim that the digital euro does.

What the ECB's 2025 change requests show

On 26 June 2025 the ECB's market infrastructure team presented a status update on its ISO 20022 Message Unfreeze Strategy. The strategy aligns TARGET Services with newer ISO 20022 releases: an initial step with ISO maintenance release 2024 in June 2026, then annual "real-time" maintenance from November 2026.

Among the change requests listed for the June and November 2026 releases is CR-1374, submitted by T2S: "Update financial instrument quantity type to report on digital tokens in reporting messages." The ECB's stated rationale is to align with securities messages where this change was made as part of a previous ISO maintenance release. In other words, the token quantity option already exists in ISO 20022 securities messages, and the ECB is bringing its T2S reporting messages in line, with implementation scheduled for 2026.

A trade-press analysis (Genfinity) also cites CR-1373, attributed to the Deutsche Bundesbank, described as adding blockchain address or wallet identification to T2S messages for digital assets. We could not confirm CR-1373 in the ECB document we read, so treat the wallet-address point as reported but unverified.

The ECB has also set out a timeline for the digital euro itself. In its October 2025 announcement, the ECB said that if European co-legislators adopt the digital euro regulation in the course of 2026, a pilot exercise and initial transactions could take place as of mid-2027, and the Eurosystem should be ready for a potential first issuance during 2029. The Governing Council's decision on whether to issue, and when, will only be taken after the legislation is adopted.

What this does show: ISO 20022 is not static, and European securities messaging is being updated to carry token-related fields. What it does not show: that any central bank or bank has chosen a particular blockchain, or that any coin we track will be used. It is a data-field change.

Multi-CBDC bridges: mBridge and Project Dunbar

The Atlantic Council counts 13 cross-border wholesale CBDC projects, and says they have more than doubled since Russia's 2022 invasion of Ukraine. Two of the best known:

mBridge began under the BIS Innovation Hub with the central banks of China, Hong Kong, Thailand, and the UAE. Its October 2022 pilot involved 20 banks in four jurisdictions and over 160 payment and FX transactions totalling more than HK$171 million, about US$22 million. The Hong Kong Monetary Authority announced on June 5, 2024 that the project had reached the minimum viable product stage and welcomed the Saudi Central Bank as the next full participant. The BIS then ended its involvement in October 2024, handing the project to the participating central banks.

The Atlantic Council reports that mBridge transaction volume had surged to $55.49 billion by November 2025 (4,047 transactions, per PYMNTS's summary of the Atlantic Council post), with the e-CNY making up over 95% of total settlement volume, and that the platform is increasingly used for trade settlement, especially for energy-linked transactions. The Atlantic Council's January 2026 post listed the Saudi Central Bank among participants. In September 2026, however, outlets citing a Financial Times report (crypto.news, CoinPaprika) said the Saudi Central Bank confirmed it is no longer a participating member after completing its planned proof of concept on 13 May 2025. We have not read the Financial Times article directly, so treat the Saudi exit as reported by those outlets. The Atlantic Council also says India, as host of the 2026 BRICS summit, has reportedly proposed linking member states' digital currencies.

Project Dunbar, a BIS Innovation Hub collaboration with the central banks of Australia, Malaysia, Singapore, and South Africa, developed two prototypes for a shared multi-CBDC platform, one on R3's Corda and one on Quorum led by Partior. The BIS says the prototypes proved the technical feasibility of a shared multi-CBDC platform, while noting that further questions and challenges remain, including governance and national security concerns.

Which ISO 20022 crypto projects touch CBDC or central bank experiments

Not all of the 8 coins we track on the WM589 coins page have direct central bank involvement. The connections below are what we could verify.

Algorand (ALGO) was announced in 2020 as the blockchain base for the Marshall Islands' planned SOV digital currency, per CoinDesk. We found no evidence that the SOV entered circulation. The payout system the country did ship in November 2025, the ENRA universal basic income program using the USDM1 digital sovereign bond and the Lomalo wallet, runs on Stellar, and USDM1 is a sovereign bond rather than a CBDC. The Algorand Foundation also says Italy's Fideiussioni Digitali initiative, supported by the Bank of Italy and the insurance regulator IVASS, selected Algorand as its public blockchain provider for bank and insurance guarantees. That is a guarantees platform, not a CBDC.

Stellar (XLM) appeared in Ukraine's e-hryvnia experiments: in December 2021 TASCOMBANK and Bitt launched a pilot to issue an electronic hryvnia on Stellar, under National Bank of Ukraine supervision and with support from the Ministry of Digital Transformation, testing programmable payroll and merchant payments. In December 2022 UNHCR and the Stellar Development Foundation announced a pilot that distributes USDC cash assistance to displaced people in Ukraine, starting in Kyiv, Lviv, and Vinnytsia. Ripple has held a seat on the ISO 20022 Registration Management Group (RMG) since 2020. We found no primary source confirming Stellar or any other coin we track holds an RMG seat.

Hedera (HBAR) is listed among the participants in the Bank of England and BIS Innovation Hub's DLT Innovation Challenge on transacting wholesale central bank money on external ledgers. It was also one of the ledgers used in the Reserve Bank of Australia's Project Acacia, a research project on digital money in wholesale tokenised asset markets. Acacia is finished: the RBA's final report, published in May 2026, says continued exploration of wholesale CBDC is warranted but that many of the benefits of tokenisation can be realised using existing central bank money in the form of exchange settlement account balances. Separately, Shinhan Bank and Standard Bank planned a stablecoin remittance proof of concept on Hedera. That is a private-sector stablecoin test, not a CBDC.

XDC Network focuses on trade finance rather than retail CBDCs. In May 2024, SBI XDC Network APAC and SBI R3 Japan announced they had completed a proof of concept connecting the XDC Network and R3's Corda platform for inter-business settlement. That is enterprise settlement, not a CBDC pilot.

The other coins we track (XRP, ADA, QNT, IOTA) have varying degrees of institutional alignment. Ripple's RMG seat and Quant's Overledger interoperability pitch are described by the projects themselves, and we have not verified direct central bank pilot involvement for any of the four. Verified central bank experiment links, as far as our sources go, belong to the projects listed above, and several of those are not CBDCs.

What this means for the 8 ISO 20022 coins

The ECB's change requests confirm something modest but real: ISO 20022 is not static, and European securities messaging is being updated to carry token-related fields.

This does not mean your bags are about to pump. Let us be precise about what it does mean.

First, the technical pathway exists on paper. Messaging formats that can carry token references make it easier, in principle, for bank data and blockchain data to meet. That is a possibility, not a commitment by any bank or central bank.

Second, the "ISO 20022 compliance" narrative needs care. No cryptocurrency has been "certified" by ISO 20022. The standard is a messaging format, not a certification body. The ISO 20022 site describes it as a methodology, a dictionary of business items and design rules for building messages.

Third, the timelines are conditional. The ECB's own digital euro dates depend on legislation, the Bank of England has not decided on a digital pound, the U.S. has barred agencies from CBDC work, Project Acacia has ended with a mixed conclusion, and the Saudi Central Bank has reportedly left mBridge. These are experiments and policy processes, not guarantees.

Check our forecast engine for price projections on all 8 coins. Use the When Moon calculator to model scenarios. But do not confuse infrastructure progress with guaranteed price appreciation. The pipes are being built. Which coins carry the water depends on execution, regulation, and adoption curves that nobody can predict with certainty.

FAQ

Does ISO 20022 certification guarantee a crypto will be used by CBDCs?

No. ISO 20022 does not certify cryptocurrencies. It is a messaging standard for financial data. Projects that implement ISO 20022-compatible messaging may find integration easier, but there is no guarantee of adoption. Central banks will choose infrastructure based on speed, security, governance, and political considerations, not a compliance label.

Which CBDC projects are furthest along?

By the Atlantic Council's May 2026 count, China's digital yuan (e-CNY) is the largest CBDC pilot in the world, with more than 3.4 billion retail transactions by December 2025. India's retail e-rupee circulation rose roughly 334% in the year to March 2025, per the RBI annual report. The digital euro is in its next phase, with a potential first issuance during 2029 if legislation is adopted in 2026. The Bahamas, Jamaica, and Nigeria have fully launched retail CBDCs, though adoption remains slow.

Will CBDCs replace the ISO 20022 coins tracked on WM589?

Unlikely to replace them outright, but we cannot say. CBDCs are central bank liabilities, government-issued digital cash. The ISO 20022 coins are privately issued and pitch themselves as infrastructure rails, cross-border settlement layers, trade finance platforms, and interoperability middleware. They solve different problems. The outcome will depend on policy and adoption, and the Reserve Bank of Australia's Project Acacia found that many tokenisation benefits can be had with existing central bank money, which is a caution for any coin whose thesis depends on wholesale CBDC.

What is mBridge and why should crypto investors care?

mBridge is a multi-CBDC platform that began with the central banks of China, Hong Kong, Thailand, and the UAE under the BIS Innovation Hub. The Saudi Central Bank joined as a full participant in 2024 but, per press reports of a Financial Times story, is no longer a participating member after completing a proof of concept. The Atlantic Council reports $55.49 billion in transaction volume by November 2025, with over 95% in e-CNY. For crypto investors, mBridge shows that central banks are testing blockchain-based settlement, but it is a platform run among participating central banks and is not built on any coin we track.

How does the ECB's 2025 ISO 20022 update affect crypto?

The ECB's June 2025 status update lists CR-1374, a T2S change request to report digital tokens in reporting messages, scheduled with the June 2026 ISO release. It aligns T2S with a change made in an earlier ISO maintenance release. It does not directly affect crypto prices, and it does not mean the eurozone's settlement infrastructure has adopted any public blockchain.

Sources

Disclaimer: This article is for informational purposes only and does not constitute financial advice. Cryptocurrency investments carry significant risk, including the potential loss of all invested capital. The mention of specific projects does not represent an endorsement. Always conduct your own research and consult a qualified financial advisor before making investment decisions. When Moon 589 tracks the coins most often linked to ISO 20022 but makes no guarantees about future performance or adoption.

ISO 20022 and CBDCs: One Standard, Two Currencies

Key Takeaways