Payment System Integration

Executive Summary

Stablecoin integration into payment systems is the most consequential near-term regulatory challenge in digital finance. Unlike speculative crypto-assets, stablecoins are being embedded into the operational infrastructure of payments — card networks, government fee collection, wholesale settlement, and cross-border remittances — at a pace that outstrips the regulatory frameworks designed to govern them.

This section maps the global landscape of payment system integration across six dimensions: retail payment acceptance, wholesale and securities settlement, real-time gross settlement (RTGS) and central bank account access, card network and fintech integration, CBDC interoperability, and cross-border payment use. For each dimension, we identify which jurisdictions have operational frameworks, which are developing them, and where regulatory gaps create systemic risk.

Across the 18 jurisdictions surveyed in this domain, 12 explicitly permit stablecoin payment use within a licensed or developing framework, 2 effectively bar payment use (India through the absence of any authorised payment-instrument status, Turkey through an outright payment ban), and 4 occupy a conditional or excluded middle (Brazil permits stablecoins as FX operations but bars them from settling the offshore leg of regulated eFX cross-border payments; Bahrain permits use only within its licensed SIO framework; South Korea treats won-stablecoin payment as a stated national priority still contingent on pending legislation; and South Africa has confirmed crypto/stablecoins fall outside the National Payment System Act and are not legal tender).

The central finding is that payment integration has advanced furthest in jurisdictions with clear stablecoin licensing regimes —

Japan,

Singapore, the

UAE,

Hong Kong, and

Bermuda — while jurisdictions relying on prohibition or regulatory ambiguity (India, Turkey, South Africa) face growing enforcement gaps as de facto stablecoin payment use expands regardless of legal status.

1. Global Landscape: Payment Integration by Level

1.1 Full Integration (Operational Frameworks for Stablecoin Payments)

Bermuda represents the most advanced government-led stablecoin payment adoption globally. Under the Digital Asset Business Act 2018 (DABA) and the stablecoin-specific SCPS Guidance (finalised November 2024), DABA covers payment service provider business using digital assets, and the government has piloted USDC payments. Bermuda became the first national government to accept tax payments in USDC. Premier David Burt confirmed a second USDC airdrop and merchant expansion at Consensus Miami (May 2026). The proposed Payment Services Act (BMA consultation issued August 2025) adds a dedicated payments track alongside the existing DABA framework. On the CBDC question, Bermuda is pursuing a sovereign-grade "Bermuda Digital Dollar" — a fiat-backed stablecoin via a Stellar Development Foundation partnership announced May 2026 — framed as a government stablecoin rather than a classic CBDC.

The

UAE has operationalised stablecoin payments through the CBUAE's Payment Token Services Regulation (PTSR). Merchants may accept licensed Dirham Payment Tokens or CBUAE-licensed foreign payment tokens, with foreign payment tokens restricted to virtual-asset purchases and derivatives. AE Coin went live at point-of-sale in January 2026 (via Network International/Mbank), and Zand AED received full CBUAE approval in November 2025 as the first multi-chain AED stablecoin on public blockchains. The IHC/Sirius/FAB "DDSC" dirham-backed stablecoin went fully approved and live on ADI Chain in February 2026. AED-denominated stablecoins remain CBUAE-exclusive under the federal framework. The CBUAE launched the first retail phase of the Digital Dirham CBDC in December 2025, positioned as complementary to private payment tokens with anticipated interoperability.

Japan has an operational stablecoin payment framework under the Payment Services Act. Fiat-backed, par-redeemable stablecoins are classified as Electronic Payment Instruments (EPIs) — purpose-built payment instruments where redemption is a fund remittance transaction (kawase-torihiki). USDC launched in Japan through SBI VC Trade in March 2025 (first EPIESP registration). JPYC Inc. registered as a fund transfer service provider in August 2025 and launched Japan's first regulated yen-denominated stablecoin on 27 October 2025 (100% reserves; Ethereum, Polygon, Avalanche). The PSA Amendment Act 2025 (enacted 6 June 2025) takes effect on a single date, 1 June 2026, per the FSA Cabinet Order published 22 May 2026. The BOJ has conducted digital-yen pilots since April 2023 but has no current plans to issue a CBDC; private stablecoins and a digital yen are expected to coexist.

Singapore regulates stablecoins as payment instruments under the Payment Services Act and operates a dedicated Single-Currency Stablecoin (SCS) framework (100% reserves, par redemption). Paxos received the first full MPI licence in July 2024 (StraitsX full MPI licences also July 2024), and Paxos launched Global Dollar (USDG) from Singapore in November 2024. MAS confirmed draft SCS stablecoin-issuance legislation in 2026 with full implementation expected mid-2026; as of 4 June 2026 the legislation is not yet enacted. SCS issuers are prohibited from lending or staking. MAS runs a wholesale CBDC pilot (tokenised MAS Bills); Project Orchid builds retail-CBDC capability "should the need arise" rather than as a commitment, with stablecoins, tokenised deposits, and CBDC expected to coexist.

The

United States enacted the GENIUS Act (S.1582) on 18 July 2025, explicitly establishing that compliant payment stablecoins are neither securities nor commodities. The Act creates a regulatory track for Permitted Payment Stablecoin Issuers (PPSIs) with mandatory 1:1 reserves and prohibits issuers from paying interest to holders. The Act is not yet effective — it takes effect the earlier of 18 January 2027 or 120 days after final rules, and no final rule exists as of June 2026. Implementing rulemakings advanced through spring 2026: the OCC issued its comprehensive GENIUS Act NPRM (25 Feb 2026), the FDIC approved a prudential NPRM (7 Apr 2026, including two-business-day redemption), and Treasury (FinCEN + OFAC) issued a joint AML/CFT and sanctions-compliance NPRM for PPSIs (8 Apr 2026). The OCC conditionally approved five national trust bank charters on 12 December 2025 (Circle, Ripple, BitGo, Fidelity Digital Assets, Paxos). Tether launched USAT — a GENIUS-compliant stablecoin via Anchorage Digital Bank — on 27 January 2026, coexisting with global USDT. A CFTC no-action position permits FCMs to accept payment stablecoins as customer margin collateral. CBDCs are explicitly excluded from GENIUS Act scope; the Fed is considering limited payment-rail access for chartered PPSIs.

1.2 Limited Integration (Frameworks Developing or Partial)

The

EU under MiCA — the world's most comprehensive enacted, jurisdiction-wide standalone stablecoin framework — permits stablecoins (Electronic Money Tokens and Asset-Referenced Tokens) as payment instruments. EMT transfers qualify as a payment service under PSD2 (per the EBA Opinion of 10 June 2025), with full PSD2 compliance required from 2 March 2026; the European Parliament and Council reached provisional agreement on PSD3/PSR in November 2025. Non-euro EMTs face transaction caps designed to protect monetary sovereignty, and the "significant" EMT designation triggers enhanced EBA supervision. The bank-led euro-stablecoin joint venture Qivalis, announced by nine banks in September 2025, was reported in May 2026 to have expanded to 37 banks across 15 countries, with launch expected in H2 2026. The European Commission opened its MiCA review consultation ("MiCA 2.0") on 20 May 2026. The EBA and NYDFS signed a non-binding MoU on cross-border stablecoin supervision (2 June 2026). Digital-euro work proceeds separately.

The

United Kingdom is among the most detailed regimes globally (a dual FCA/BoE model with a dedicated qualifying-stablecoin category), with full regime commencement set for 25 October 2027. In a significant pivot, HM Treasury (21 April 2026) reversed its earlier position to bring UK-issued qualifying stablecoins used for payments into the regulated payments perimeter, and the FCA has named stablecoin payments a 2026 priority. The Bank of England's November 2025 systemic-stablecoin consultation proposed GBP 20,000 individual holding limits and a 40%/60% backing split; however, BoE Deputy Governor Sarah Breeden (19 May 2026) confirmed the Bank is abandoning individual holding limits in favour of temporary aggregate issuance caps, and signalled banks may issue via non-deposit-taking subsidiaries. The House of Lords Financial Services Regulation Committee (2 June 2026) urged the BoE to reconsider both the holding limits and the 40% backing requirement. The UK's systemic-stablecoin regime is distinct from CBDC work; the digital pound is a separate workstream.

Hong Kong passed the Stablecoins Ordinance (Cap. 656) — gazetted 30 May 2025, effective 1 August 2025 — establishing a dedicated regime for fiat-referenced stablecoins (FRS). The HKMA granted its first two issuer licences on 10 April 2026: Anchorpoint Financial (FRS01) and HSBC (FRS02), both HKD-referenced (OSL was not in the first batch). Only HKMA-licensed FRS may be offered to retail. The HKMA stablecoin sandbox (launched March 2024) tested e-commerce and cross-border use cases ahead of the regime.

Canada has enacted the federal Stablecoin Act (Division 45 of Bill C-15), which received Royal Assent on 26 March 2026 — now law but not yet in force (its in-force date will be set by Order in Council; a framework is anticipated 2027, and as of 4 June 2026 draft regulations had not been published in the Canada Gazette). Stablecoins are positioned as payment instruments, with a yield prohibition (no interest, yield, or rewards to holders). Central banks and CBDCs are excluded from the Stablecoin Act; the Bank of Canada continues research on digital money (stablecoins, tokenised deposits, CBDCs). The provincial CSA securities overlay (VRCA/FBCA) continues to apply.

Brazil classifies fiat-referenced stablecoin transactions as foreign exchange (FX) operations under BCB Resolution 521/2025, bringing them within the financial perimeter rather than creating a payment-specific framework. Stablecoin payment use is permitted as FX operations, but Resolution 561/2026 bans virtual-asset settlement of the offshore leg of regulated eFX cross-border payments (effective 1 October 2026). The BCB has stated approximately 90% of Brazil's crypto volume is stablecoin activity. Drex (the digital real) has pivoted away from blockchain (deemed not viable) and is positioned as institutional settlement infrastructure complementary to private stablecoins, not a retail CBDC.

Bahrain published its SIO Module in July 2025 with dedicated stablecoin issuance licensing; payment use is permitted within the licensed framework (issuance, trading, use). Notably, Bahrain permits yield-bearing stablecoins including Sharia-compliant instruments, a feature few jurisdictions globally allow. The CBB granted its first in-principle approval under the SIO Module to AX Coin (January 2026) and the first full stablecoin issuer licence to AX Coin Bahrain B.S.C. (c) on 3 June 2026.

Australia is modernising its payments framework. Stablecoins are currently "financial products" (non-cash payment facilities) regulated under the Corporations Act with ASIC guidance (INFO 225), and reform aims to capture them within a modernised payments framework (stored-value facility, payment-instrument, and payment-service categories). The Tranche 1 PSP exposure-draft package (released 12 March 2026, consultation closed 9 April 2026) proposes APRA registration for major SVF/currency stablecoin issuers above an A$200 million threshold — but is not yet enacted. CBDC is not addressed as part of this payments-modernisation track.

Nigeria brought digital assets under SEC oversight via the Investments and Securities Act 2025, and cNGN — Africa's first regulated naira-backed stablecoin — is used for instant payments, cross-border remittances, and naira-denominated commerce. The cNGN issuer (WrappedCBDC) was admitted to test under the SEC's Regulatory Incubation / Accelerated Regulatory Incubation Programme (RI/ARIP) track on 29 August 2024 ahead of the February 2025 launch. cNGN is designed to complement, not substitute, the CBN's eNaira CBDC (launched October 2021).

1.3 Prohibited or Effectively Restricted

Turkey prohibits crypto-asset and stablecoin payments (CBRT Regulation on the Disuse of Crypto-Assets in Payments, April 2021) while permitting trading and now licensing CASPs under Law No. 7518. MASAK Circular No. 29 (June 2025) imposes USD 3,000 daily / USD 50,000 monthly stablecoin transfer limits plus 72h/48h withdrawal delays. This creates the paradox of very high stablecoin trading volume alongside a payment prohibition. The CBRT is conducting digital-lira (CBDC) research; it has not launched.

India has no authorised payment-instrument status for stablecoins; they are not legal tender or authorised payment instruments and are used only informally for remittances (USDT trading at a 4–5% premium). Stablecoins are classified as Virtual Digital Assets subject to 30% flat tax (Sec 115BBH) and 1% TDS (Sec 194S), retained unchanged in the Union Budget 2026. The RBI prioritises the e-rupee CBDC as a strategic alternative to private stablecoins and, in its December 2025 Financial Stability Report, judged that stablecoin "risks outweigh purported benefits" and urged global priority on CBDCs. The e-rupee's circulation fell ~24% to Rs 771.7 crore as of 31 March 2026 (~10 million users) per the RBI Annual Report 2025-26.

South Korea has passed VAUPA (the consumer-protection baseline, effective July 2024) but the Digital Asset Basic Act (DABA) remains a pending bill, not enacted — introduced to the National Assembly in June 2025, with the ruling Democratic Party re-proposing/consolidating it (with bank-style stablecoin rules) on 8 April 2026; it was left off the National Policy Committee's final pre-recess agenda (12 May 2026), pushing review into H2 2026. A won-pegged stablecoin is a stated national priority (President Lee Jae-myung), with bank consortia targeting launches in late 2026 contingent on legislation; no stablecoin-specific licences have been issued. On CBDC, the Bank of Korea paused the retail digital-won pilot (Project Hangang) in 2025 and then launched Phase 2 in March 2026 (expanding from 7 to 9 banks; wholesale CBDC + deposit tokens, with live subsidy disbursement); new BOK Governor Shin Hyun-song (21 April 2026) prioritises a bank-led CBDC plus deposit tokens and omits stablecoins.

South Africa operates CASP licensing and AML/travel-rule frameworks, but stablecoin-issuer regulation remains undeveloped. The SARB/FSCA Joint Communication of 28 May 2026 confirmed that crypto-assets/stablecoins are not "money", "funds", or "payments" under the National Payment System Act 1998 and are not legal tender, placing domestic stablecoin payments outside the NPSA. The IFWG published a Stablecoin Landscape Diagnostic (November 2025) and a Discussion Paper on rand-pegged stablecoin frameworks (Q1 2026, comments due 18 May 2026), finding existing law (Banks Act/CISCA/FMA) inadequate without amendment and pointing toward a bespoke regime via the CoFI Bill.

2. Comparative Table: Payment Integration Dimensions

3. Wholesale Settlement and Securities Use

3.1 Project mBridge (BIS/Multi-CBDC)

Project mBridge is the most advanced multi-CBDC platform for cross-border wholesale settlement. As of November 2025, mBridge processed $55.49 billion in cumulative transaction volume across 4,047 transactions. Participants include the People's Bank of China, Hong Kong Monetary Authority, Bank of Thailand, CBUAE, and Central Bank of Saudi Arabia. The BIS transferred governance to participating central banks in October 2024.

While mBridge uses wholesale CBDCs rather than private stablecoins, its infrastructure directly informs how stablecoin arrangements might access wholesale settlement. The UAE Ministry of Finance and Dubai Department of Finance executed a government financial transaction using the wholesale digital dirham on mBridge in November 2025. China's digital yuan accounts for approximately 95% of mBridge settlement volume.

Regulatory implication: mBridge demonstrates that DLT-based wholesale settlement is technically viable. The CPMI-IOSCO PFMI guidance on stablecoin arrangements applies here — if a stablecoin arrangement performs a transfer function and is designated systemically important, all relevant PFMI principles apply, including Principle 9 on money settlements (requiring settlement in central bank money where practical).

3.2 Singapore Project Guardian

Project Guardian, launched by MAS in 2022, is a collaborative initiative with over 40 financial institutions (DBS, JPMorgan, Ant Group, Apollo, Franklin Templeton, OCBC, UBS) testing asset tokenisation across fixed income, foreign exchange, and wealth management. Stablecoins serve as a key settlement instrument in Guardian pilot transactions. The BLOOM initiative extends this to tokenised bank liabilities and regulated stablecoins.

In November 2025, MAS announced a 2026 wholesale CBDC pilot to settle tokenized government bills (MAS bills), following a successful 2025 trial with DBS, JPMorgan, and Standard Chartered. ISDA and Ant International published a report under Project Guardian on using tokenised bank liabilities for FX settlement and cross-border payments.

3.3 Japan Project Pax

Project Pax, operated by Progmat and Datachain with backing from MUFG, SMBC, and Mizuho, aims to create a cross-border stablecoin transfer platform using SWIFT's messaging system for blockchain settlement. The FSA designated Project Pax as a "Payment Innovation Project" within its FinTech PoC Hub framework.

The platform uses the Inter-Blockchain Communication (IBC) protocol and Datachain's LCP middleware for cross-chain transactions. MUFG Trust serves as the stablecoin issuer, with Mitsubishi Corporation participating to make payments between Japanese and overseas subsidiaries.

Regulatory significance: Project Pax represents the first instance of major bank-issued stablecoins designed for institutional cross-border settlement, operating within a fully regulated framework (Japan's PSA, with the PSA Amendment Act 2025 taking effect 1 June 2026). This model — bank-issued, regulator-supervised, SWIFT-integrated — may prove more acceptable to central banks than permissionless stablecoin settlement.

4. RTGS and Central Bank Account Access

4.1 UK Bank of England Approach

The Bank of England's November 2025 consultation on systemic stablecoins represents the most detailed proposal globally for stablecoin issuer access to central bank infrastructure. As originally consulted:

• 40% of backing assets held as unremunerated deposits at the Bank of England
• 60% of backing assets in short-term UK government debt
• Individual holding limits of GBP 20,000 per coinholder
• Capital equal to six months' operating expenses or cost of recovery from the largest plausible loss event

These proposals are now being revised. On 19 May 2026, BoE Deputy Governor Sarah Breeden confirmed the Bank is abandoning individual holding limits in favour of temporary aggregate issuance caps, and indicated banks may issue via non-deposit-taking subsidiaries. On 2 June 2026, the House of Lords Financial Services Regulation Committee urged the BoE to reconsider both the holding limits and the 40% backing requirement. Revised draft systemic-stablecoin rules were expected from the BoE in June 2026.

The BoE has a "low risk appetite" for payment obligations currently settled in central bank money via RTGS migrating to private stablecoin ledgers, but proposes exploring systemic stablecoin use within the Digital Securities Sandbox. This remains a cautious but structurally significant step: for the first time, a G7 central bank is proposing to directly hold stablecoin backing assets, creating a direct operational link between private stablecoins and central bank balance sheets.

4.2 United States Federal Reserve

The GENIUS Act creates a framework for stablecoin issuers to access regulated banking infrastructure. Key developments:

• The OCC conditionally approved five national trust bank charters on 12 December 2025 (Circle, Ripple, BitGo, Fidelity Digital Assets, Paxos)
• The FDIC approved an NPRM for GENIUS Act application procedures (16 December 2025) and a prudential NPRM (7 April 2026) covering reserves, capital, custody, and two-business-day redemption
• The NCUA proposed a stablecoin issuance rule (11 February 2026)
• Under the GENIUS Act, CBDCs are explicitly excluded from scope, and the Federal Reserve is considering limited payment-rail access for chartered PPSIs

Note (not in the fact matrix): Earlier reporting that Kraken became the first crypto company to secure a Federal Reserve master account (March 2026) is carried over from prior research but is not corroborated by the current jurisdiction fact matrix; the matrix states only that the Fed is "considering limited payment-rail access for chartered PPSIs." Treat the Kraken master-account claim as unverified pending primary-source confirmation.

4.3 Other Jurisdictions

Switzerland: Fiat-backed stablecoins function as payment tokens under FINMA's "same business, same risk, same rules" approach, with multiple CHF projects operational (Sygnum's DCHF, SIX's tCHF, and ZCHF). Several are backed by Swiss National Bank sight deposits — the highest quality reserve asset available. The proposed FinIA amendment (consultation opened October 2025, closed February 2026) would create Payment Institution / Crypto Institution licences requiring a separate legal entity, with a dispatch to Parliament expected H2 2026 at the earliest and entry into force projected late 2026/2027 — not yet enacted. The SNB pursues wholesale-CBDC work (Project Helvetia), and a CHFD bank-consortium sandbox pilot explores the middle ground between SNB centralisation and decentralised stablecoins.

UAE: The CBUAE provides settlement infrastructure through the Digital Dirham, and the PTSR requires reserve assets in UAE-licensed bank accounts. The CBUAE does not offer stablecoin issuers direct central bank accounts, but the mBridge platform provides cross-border wholesale CBDC settlement, and the retail Digital Dirham launched December 2025.

Japan: No central bank account access for stablecoin issuers is proposed. Bank-issued stablecoins benefit from existing banking infrastructure and deposit insurance (JPY 10 million per depositor per bank). The BOJ has stated there are no current plans to issue a CBDC.

5. Card Network and Fintech Integration

5.1 Visa Stablecoin Settlement

Visa launched USDC settlement in the United States in December 2025, marking the first time U.S. issuer and acquirer partners can settle with Visa in Circle's USDC. Initial banking participants include Cross River Bank and Lead Bank, settling over the Solana blockchain. As of November 2025, Visa's monthly stablecoin settlement volume passed a $3.5 billion annualised run rate. Broader U.S. availability is planned through 2026.

The significance: stablecoin settlement through Visa does not change the consumer card experience. The consumer pays normally; the merchant acquirer and issuer settle in USDC rather than traditional correspondent banking rails, enabling faster funds movement, seven-day availability, and enhanced operational resilience across weekends and holidays.

5.2 Mastercard Stablecoin Integration

Mastercard partnered with Circle to offer USDC and EURC settlement for payment-enabling banks in Europe, the Middle East, and Africa. Mastercard also partnered with ADI Foundation to bring stablecoin capabilities into the UAE. These integrations position stablecoins as back-end settlement infrastructure rather than consumer-facing payment instruments.

5.3 PayPal PYUSD

PayPal's PYUSD has achieved significant scale:

• Market capitalisation exceeding $4.1 billion (more than quintupled over one year)
• Expanded to 70 countries as of March 2026 (from initial US/UK markets)
• YouTube introduced a feature for U.S. creators to receive payment in PYUSD (December 2025)
• PayPal uses PYUSD internally for cross-entity international fund transfers
• Integration with Stellar blockchain for expanded use cases (June 2025)

PYUSD operates under existing state money transmitter licences and, prospectively, the GENIUS Act framework once effective, positioning it as a regulated payment stablecoin with immediate consumer distribution through PayPal's 400+ million active accounts.

5.4 Stripe Stablecoin Infrastructure

Stripe has made stablecoin integration core to its payment platform:

• Open Issuance Platform (powered by Bridge, acquired by Stripe) enables businesses to launch stablecoins with a few lines of code
• Stripe's Optimized Checkout Suite now accepts stablecoin payments by default
• US businesses with Financial Accounts can hold stablecoin balances, convert between fiat, spend via locally issued cards, and send stablecoins cross-border
• Stablecoin subscriptions in private preview for US businesses (USDC over Base and Polygon)
• Tempo blockchain under development — early testnet participants include Visa, Nubank, Shopify, and Klarna (which launched a bank-issued stablecoin on Tempo)

5.5 Regulatory Interaction

Card network and fintech stablecoin integration creates regulatory challenges:

1. Jurisdictional layering: Visa's USDC settlement involves the card network (Visa, regulated as a payment system), the stablecoin issuer (Circle, regulated under state MTL/GENIUS Act), the blockchain (Solana, largely unregulated), and the settling banks (Cross River, Lead Bank, regulated by banking agencies). No single regulator has oversight of the full transaction chain.

2. Consumer protection gap: When stablecoins settle behind the scenes of a card payment, consumers may not know their transaction involves a stablecoin. If the stablecoin depegs mid-settlement, the allocation of loss between consumer, merchant, card network, and stablecoin issuer is unclear in most jurisdictions.

3. MiCA interaction: In the EU, Visa/Mastercard's use of USDC for settlement may engage MiCA's restrictions on non-euro EMT transaction volumes, which could constrain card-network stablecoin settlement at scale.

6. CBDC Interoperability

6.1 Brazil: Drex and Stablecoin Coexistence

Brazil's Drex CBDC has pivoted away from blockchain technology, which the BCB deemed not viable. Drex is now positioned as institutional settlement infrastructure complementary to private stablecoins, rather than a retail CBDC.

The BCB views Drex as complementary to private stablecoins. Meanwhile, B3 (the Brazilian exchange) announced plans to launch a tokenisation platform and stablecoin (B3RL) in December 2025. This dual-track approach — public wholesale infrastructure plus private stablecoins for retail/remittance — may represent a pragmatic model for emerging markets, though Resolution 561/2026 bars virtual-asset settlement of the offshore leg of regulated eFX cross-border payments from 1 October 2026.

6.2 India: e-Rupee Priority Over Stablecoins

The RBI prioritises the e-rupee CBDC as a strategic alternative to private stablecoins. As of 31 March 2026, e-rupee circulation fell approximately 24% to Rs 771.7 crore with a user base of around 10 million (RBI Annual Report 2025-26) — a decline from its earlier peak of Rs 1,016 crore (~6 million users) in March 2025.

The RBI's stated opposition to private stablecoins — reiterated in its December 2025 Financial Stability Report ("risks outweigh purported benefits") and its call for global priority on CBDCs — creates a policy tension: the government taxes stablecoins as VDAs (implicitly legitimising them) while the RBI opposes their existence. No "twin-rupee" architecture combining the e-rupee with regulated private stablecoins has been formally adopted; the April 2026 inter-ministerial discussion paper covering stablecoins/remittances was again shelved amid RBI resistance.

6.3 EU: Digital Euro and Stablecoin Coexistence

In the EU, digital-euro work proceeds separately from the MiCA EMT framework. MiCA's volume caps on non-euro EMTs are explicitly designed to protect monetary sovereignty, and MiCA's EMT framework and a future digital euro are intended to coexist rather than compete.

The bank-led Qivalis euro-stablecoin consortium — announced by nine banks in September 2025 and reported in May 2026 to have expanded to 37 banks across 15 countries — represents a bank-led model of stablecoin issuance that may complement, rather than compete with, a digital euro. (Specific digital-euro launch dates are not established in the current jurisdiction fact matrix and are therefore treated as not verified here.)

6.4 UAE: Digital Dirham

The CBUAE's Digital Dirham strategy includes both wholesale and retail components. The wholesale digital dirham has been used for cross-border settlement via mBridge (including a government financial transaction in November 2025), and the retail phase of the Digital Dirham launched in December 2025.

The coexistence model in the UAE is clearer than most jurisdictions: AED-pegged private payment tokens (AE Coin live at point-of-sale January 2026, Zand AED, the IHC/FAB "DDSC") handle commercial payments — and remain CBUAE-exclusive — while the Digital Dirham handles retail and wholesale/cross-border settlement, positioned as complementary with anticipated interoperability.

6.5 Assessment: Complementary or Competitive?

The evidence from the surveyed jurisdictions indicates that the relationship between CBDCs and stablecoins is primarily complementary, not competitive, in jurisdictions with clear regulatory frameworks:

• Wholesale CBDCs (mBridge, Singapore's tokenised-MAS-Bills pilot, the UAE wholesale Digital Dirham, Switzerland's Project Helvetia) serve interbank and government settlement — functions private stablecoins are not positioned to perform
• Retail CBDCs (e-rupee, retail Digital Dirham, South Korea's Project Hangang Phase 2) target financial inclusion and monetary sovereignty — objectives that overlap with but do not fully replicate stablecoin use cases
• Private stablecoins serve programmable payments, cross-border remittances, DeFi integration, and commercial transactions — use cases where CBDCs are either absent or limited

The jurisdictions where CBDCs and stablecoins are positioned as competitive (India; South Korea's bank-led-CBDC emphasis that omits stablecoins) are those where central bank policy reflects monetary sovereignty concerns rather than functional overlap. By contrast, the UAE, Bermuda, Brazil, and Nigeria explicitly frame their CBDC/government-digital-currency efforts as complementary to private stablecoins.

7. Cross-Border Payment Use

7.1 Remittance Cost Data

The World Bank's 2025 data shows global average remittance costs of 6.49% of the amount sent, reaching 8.78% in sub-Saharan Africa. Traditional bank wires incur fees of 2-7% including FX spreads and intermediary charges.

Stablecoin transfers typically cost 0.5-2% in on-chain fees, representing potential savings of 60-90% on the transfer component. However, total corridor costs include:

• On-ramp/off-ramp fees (fiat-to-stablecoin conversion): 1-3%
• FX conversion costs (where the stablecoin currency differs from sender/receiver currency): 0.5-2%
• Cash-out costs (particularly in markets with limited banking infrastructure): variable
• Compliance costs (KYC, travel rule, reporting): passed through to users

The IMF's December 2025 blog post acknowledged stablecoin potential for improving payments, while noting that cost savings depend on specific corridors and infrastructure availability. In 2025, stablecoin international payments handled an estimated $6 trillion of global cross-border payment flows.

7.2 G20 Roadmap for Cross-Border Payments

The FSB's October 2025 consolidated progress report on the G20 Roadmap for Enhancing Cross-Border Payments found that while policy milestones have been achieved since 2020, improvements have yet to yield meaningful gains for end-users globally. Key performance indicators show only slight improvement since 2023, with the FSB noting it is unlikely the roadmap's 2027 targets will be met.

The G20 Crypto-Asset Policy Implementation Roadmap runs in parallel. The practical implication: stablecoins are emerging as a potential pathway to achieving the G20 cross-border payment targets where traditional improvements have stalled, but regulatory barriers (varying licensing requirements, FX classification, capital controls) constrain cross-border stablecoin use.

7.3 Regulatory Barriers to Cross-Border Stablecoin Use

Key barriers identified across jurisdictions:

1. FX classification and offshore-leg bans (Brazil): Treating stablecoin transactions as foreign exchange operations subjects them to FX reporting and per-transaction caps (USD 100,000 for non-bank SPSAVs, USD 500,000 for banks/authorised FIs). Resolution 561/2026 additionally bans virtual-asset settlement of the offshore leg of regulated eFX cross-border payments from 1 October 2026.

2. Capital flow management (Turkey, India, South Korea): Stablecoin transfer limits (Turkey: USD 3,000 daily / USD 50,000 monthly under MASAK Circular No. 29), punitive taxation (India: 30% + 1% TDS), and a zero-threshold crypto travel rule (South Korea, covering stablecoins and unhosted wallets) all constrain cross-border use.

3. Licensing fragmentation: A stablecoin licensed in Singapore cannot automatically operate in Japan, the EU, or the UK. Each jurisdiction requires separate licensing, reserve compliance, and AML/CFT programmes, multiplying compliance costs.

4. Travel rule implementation gaps: Travel-rule implementation for virtual-asset transfers remains uneven globally. Approaches range from no de minimis threshold (Japan) and zero-threshold rules (South Korea) to phased multi-year rollouts (Brazil, reaching full compliance from 2 February 2028), creating friction as jurisdictions implement varying requirements.

5. Redemption and settlement mismatches: Redemption timelines vary from next business day (Hong Kong onboarded customers; UK par-redemption proposals) to two business days (US FDIC prudential NPRM) to contractual (Switzerland, Brazil). Cross-border settlement requires alignment of these timelines.

8. What Works

1. Clear legal classification for payment stablecoins. Japan's EPI framework, the

   US GENIUS Act's explicit exclusion from securities/commodity definitions, Hong Kong's Stablecoins Ordinance (Cap. 656), and Singapore's MAS-regulated SCS designation all provide regulatory certainty that enables payment integration.

2. Government-led adoption programmes. Bermuda's USDC payment pilots and airdrops and the UAE's point-of-sale rollout of AED-pegged tokens demonstrate that government adoption creates commercial momentum. When government agencies accept or sponsor stablecoins, merchants and consumers follow.

3. Card network integration as a bridge. Visa's USDC settlement and PayPal's PYUSD expansion succeed because they do not require consumers to change behaviour. The stablecoin operates as back-end infrastructure while the front-end payment experience remains unchanged.

4. Bank-issued stablecoin models. Japan's megabank initiative (Project Pax) and the EU's Qivalis consortium (expanded to 37 banks across 15 countries) demonstrate that bank-issued stablecoins leverage existing trust, regulatory relationships, and infrastructure. Regulators are more comfortable when stablecoin issuers are already within the prudential perimeter.

5. Sandbox-to-licence pathways. Hong Kong's stablecoin sandbox (March 2024) leading to the Stablecoins Ordinance (effective 1 August 2025) and first licences (Anchorpoint and HSBC, 10 April 2026) demonstrates an effective pipeline from experimentation to regulation.

9. What Does Not Work

1. Payment bans alongside trading permission. Turkey's prohibition on stablecoin payments while permitting trading creates an incoherent regime. Stablecoins with high trading volumes cannot be used for their designed purpose.

2. Regulatory ambiguity as strategy. South Africa's IFWG has produced high-quality analysis, but the May 2026 SARB/FSCA confirmation that stablecoins fall outside the NPSA leaves domestic stablecoin payments without a payment-system home even as use continues. India's lack of any authorised stablecoin payment status has not prevented de facto adoption for remittances.

3. Punitive taxation destroying payment utility. India's 30% flat tax with no loss offset and 1% TDS — retained unchanged in the Union Budget 2026 — makes stablecoin payments economically irrational for any legal use case, driving activity to unregulated channels rather than preventing it.

4. Caps that constrain legitimate use. MiCA's transaction caps for non-euro EMT payments may prove too restrictive as card-network settlement scales. The UK's originally proposed GBP 20,000 individual holding limit was widely criticised as constraining legitimate high-value use — and has since been abandoned (May 2026) in favour of temporary aggregate issuance caps.

5. Multi-year implementation timelines. The UK's regime (full commencement 25 October 2027) and Canada's enacted-but-not-yet-in-force Stablecoin Act allow market development to outpace regulation. By the time rules take effect, the market may have structured around them.

10. Recommended Framework for Payment System Integration

Based on the evidence across the 18 jurisdictions surveyed in this domain (and the international standard-setting work of the FSB, CPMI-IOSCO, and FATF), regulators considering stablecoin payment integration should address five structural requirements:

Requirement 1: Payment-Specific Licensing Track

Create a distinct licensing category for stablecoins used in payments, separate from general crypto-asset regulation. Models: Japan's EPI classification, Singapore's SCS framework, Hong Kong's Stablecoins Ordinance, Bermuda's proposed Payment Services Act.

Requirement 2: Central Bank Account Access for Systemic Issuers

Provide a pathway for systemically important stablecoin issuers to hold backing assets at the central bank. The UK BoE's systemic regime — originally a 40% unremunerated-deposit requirement, now being recalibrated alongside aggregate issuance caps — illustrates both the appeal and the difficulty of this approach. Direct central-bank linkage reduces counterparty risk and gives central banks oversight of systemic stablecoin reserves.

Requirement 3: Interoperability with Existing Payment Infrastructure

Require or incentivise integration with existing payment systems (SWIFT, RTGS, card networks) rather than creating parallel infrastructure. Model: Japan's Project Pax (SWIFT messaging + blockchain settlement).

Requirement 4: Cross-Border Mutual Recognition

Develop bilateral or multilateral recognition frameworks for stablecoin licences, analogous to MiCA's passporting. The FSB's cross-border cooperation recommendations and the FATF travel rule provide the foundational framework — and early bilateral steps (the EBA–NYDFS MoU of June 2026) point the way — but practical mutual recognition of stablecoin licences remains undeveloped.

Requirement 5: CBDC Coexistence Planning

Regulators developing CBDCs should explicitly define the intended relationship with private stablecoins. The UAE model (private payment tokens for commercial payments, Digital Dirham for retail and wholesale settlement) provides clarity. The India model (CBDC priority, stablecoin opposition) and South Korea's bank-led-CBDC emphasis create unresolved tensions that inhibit both.

11. Decision Matrix for Policymakers

Verification Notes

This document is a refresh synthesis mirroring the canonical per-jurisdiction fact matrix (.claude/stablecoin-fact-matrix.json) as of 4 June 2026. No new web searches were conducted for this pass; all jurisdiction-specific facts trace to the matrix, which itself carries per-jurisdiction verification. Key points reconciled in this refresh:

1. Hong Kong Stablecoins Ordinance is Cap. 656 (not 636), gazetted 30 May 2025, effective 1 August 2025. First two issuer licences were granted on 10 April 2026 — Anchorpoint Financial (FRS01) and HSBC (FRS02), both HKD-referenced (not Standard Chartered, and not March 2026).

2. Canada's Stablecoin Act is enacted via Bill C-15 (Division 45), Royal Assent 26 March 2026 — now law but not yet in force (in-force date set by Order in Council; framework anticipated 2027; draft regulations not yet in the Canada Gazette as of 4 June 2026).

3. Japan's PSA Amendment Act 2025 takes effect on a single date, 1 June 2026 (per FSA Cabinet Order published 22 May 2026). There is no separate "13 June operational deadline" (13 June 2025 was the promulgation date of the enacted Act).

4. United States: GENIUS Act enacted 18 July 2025 but not yet effective (earlier of 18 January 2027 or 120 days after final rules; no final rule as of June 2026). Implementing NPRMs advanced April–May 2026 (OCC 25 Feb; FDIC prudential 7 Apr; FinCEN/OFAC joint 8 Apr; NCUA 11 Feb). The OCC conditionally approved five national trust bank charters (Circle, Ripple, BitGo, Fidelity Digital Assets, Paxos) on 12 December 2025. Tether launched USAT (GENIUS-compliant, via Anchorage Digital Bank) on 27 January 2026. The Kraken Fed-master-account claim carried from prior research is not corroborated by the matrix and is flagged accordingly in §4.2.

5. South Korea: DABA is a pending bill (introduced June 2025; ruling-party re-proposed/consolidated 8 April 2026), not enacted; review pushed into H2 2026. VAUPA (consumer-protection baseline) is in force. Project Hangang was paused (2025) then relaunched as Phase 2 in March 2026 (7→9 banks; wholesale CBDC + deposit tokens).

6. Nigeria: the cNGN issuer (WrappedCBDC) was admitted to test under the SEC RI/ARIP track (29 August 2024) — not granted an Approval-in-Principle (AIP). cNGN is designed to complement, not substitute, the eNaira.

7. EU: EMT transfers qualify as a payment service under PSD2 (EBA Opinion 10 June 2025; full compliance from 2 March 2026). The Qivalis consortium expanded from nine banks (September 2025) to 37 banks across 15 countries (reported May 2026); launch H2 2026. Specific digital-euro launch dates are not established in the matrix and are treated as not verified.

8. UK: HM Treasury reversed position (21 April 2026) to bring UK-issued qualifying stablecoins used for payments into the regulated payments perimeter; the BoE is abandoning individual holding limits for temporary aggregate issuance caps (Deputy Governor Breeden, 19 May 2026), and the Lords FSR Committee urged reconsideration of the 40% backing requirement (2 June 2026). Full regime commences 25 October 2027.

9. UAE: Retail Digital Dirham CBDC launched December 2025; AE Coin live at point-of-sale January 2026; Zand AED full approval November 2025; AED stablecoins remain CBUAE-exclusive.

10. South Africa: SARB/FSCA Joint Communication (28 May 2026) confirms crypto/stablecoins are not "money"/"funds"/"payments" under the NPSA 1998 and not legal tender.

11. Aggregates re-derived from the matrix: of 18 jurisdictions, 12 explicitly permit stablecoin payment use (US, Bermuda, Canada, Australia, Hong Kong, Japan, Singapore, EU, Switzerland, UK, Nigeria, UAE); 2 effectively bar payment use (India, Turkey); and 4 occupy a conditional/excluded middle (Brazil, Bahrain, South Korea, South Africa).

12. No third-party social-media or user-generated sources are cited; the matrix is the source of truth, and any non-authoritative citations from prior drafts have been removed. Where the matrix records "NOT VERIFIED" or does not address a point (e.g., collateral use in most jurisdictions; specific digital-euro launch dates), this document reflects that uncertainty rather than asserting a fact.