Stablecoins Won. Difficult Questions Begin Now.

What mainstream adoption means for deposits, compliance, brokers and market infrastructure

Prepared for circulation | Compliance and Risk perspective

Executive Summary

Stablecoins have moved from a contested crypto-market product to embedded payment infrastructure. Consumer wallets, retail pilots, a federal United States framework under the GENIUS Act, and parallel regimes under the European Union's Markets in Crypto-Assets Regulation (MiCA) and an emerging UK regime have together settled the question of whether tokenised money can operate inside the regulated financial system. The question that now matters is who controls the customer relationship, the deposit base and the compliance architecture as adoption scales.

This document expands the original article into a working briefing for a compliance, risk and strategy audience. Each thematic section is followed by a short assessment of why the development matters, its strategic implications for regulated firms, and the practical actions that firms in banking, brokerage, payments and digital assets should consider. The document closes with a conclusion, a forward-looking statement and an indicative timeline of expected regulatory and market developments.

Key Takeaways

–    Adoption is no longer the open question. Deposit migration, liability allocation and privacy architecture are.

–    Regulatory clarity in the US, EU and UK reduces uncertainty but introduces new supervisory and technology-equivalence questions.

–    Banks, brokers and payment providers face a narrowing window to decide whether they build stablecoin capability or cede the customer interface to technology platforms.

Compliance functions should treat stablecoin settlement as a standing agenda item, not a one-off assessment.

Context: From Feasibility to Implementation

The first phase of the stablecoin debate concerned whether tokens pegged to currencies such as the US dollar could reliably maintain their value. The second concerned whether regulators would permit them to operate inside the financial system. Events are overtaking both questions. The United States now has a federal stablecoin framework under the GENIUS Act. The European Union is implementing stablecoin requirements through MiCA, and UK regulators are developing a separate regime. Payment providers, banks, card networks and technology companies are simultaneously building the infrastructure needed to move tokenised money alongside conventional currencies.

Consumer adoption is becoming less theoretical by the month. Samsung has confirmed that its smartphone wallet will support stablecoins, building on a Coinbase integration that covers more than 75 million US Galaxy users. In Japan, convenience store operator Lawson is preparing to test payments with the yen-backed JPYC stablecoin at a Tokyo location. The argument that stablecoins could enter mainstream finance has therefore largely been settled. The more consequential questions concern what happens after adoption: who controls the customer's money, who bears responsibility when a payment fails, how banks respond to deposit migration, and whether compliance can be achieved without exposing commercial and personal transactions to the public.

1. Stablecoins Are Becoming Invisible Payment Infrastructure

The strongest evidence of mainstream adoption may be that consumers increasingly use stablecoins without registering the transaction as a cryptocurrency payment. A customer sees a balance expressed in dollars, euros or yen, presses a payment button and receives a conventional receipt. The conversion, blockchain transfer and merchant settlement take place behind the interface. This model removes one of the principal barriers that previously limited cryptocurrency payments: consumers no longer need to understand wallet addresses, network fees or blockchain confirmations, and merchants do not necessarily need to hold digital assets themselves.

With the first anniversary of the GENIUS Act's signing into law, it is now clear that it has ushered in a significant positive shift in stablecoin adoption, especially among businesses. Before the Act, there was uncertainty around the legal and regulatory status of stablecoins in the United States, which in turn created hesitation in adoption.

Eric Barbier, CEO and Founder, Triple-A

Barbier notes that Triple-A has seen shorter sales cycles among enterprise customers as businesses become more willing to integrate stablecoin payment systems, particularly for cross-border commerce, describing stablecoins as quickly establishing themselves as a trusted additional payment rail. Triple-A's partnership with cross-border payments and FX provider Neo illustrates how stablecoins are being inserted into existing financial processes rather than offered as an alternative economy outside them.

Retail pilots like this are an important milestone because they move stablecoins beyond financial markets and into everyday consumer spending. But accepting a stablecoin at checkout is only the first step. The real test is what happens after the payment: how funds settle, how merchants reconcile transactions, and how seamlessly those payments connect with existing financial infrastructure.

Marcos Viriato, CEO and Co-founder, Parfin

The ability to hide technical complexity is an advantage for adoption. It can also obscure responsibility. When the stablecoin is invisible to the customer, it may be unclear whether the wallet provider, token issuer, exchange, merchant or payment processor is responsible for a rejected transfer, a delayed refund or an account compromised by fraud.

Why This Matters

Regulated firms are being drawn into a payment chain where the customer-facing brand and the entity legally responsible for redress may not be the same. This is a familiar problem from open banking and e-money regulation, but at greater scale and speed, and with cross-border blockchain settlement layered on top.

Strategic Implications

Firms that provide or rely on stablecoin rails will need to map the full transaction chain, not only the customer-facing step, to identify where liability sits under existing consumer protection, payment services and e-money frameworks. Where the technology obscures this chain from the customer, firms should expect increased regulatory and reputational scrutiny of disclosure and complaint-handling practices.

Action Required

–    Map end-to-end responsibility across wallet provider, issuer, exchange, merchant and payment processor for every stablecoin rail in use or under consideration.

–    Review complaint-handling and redress procedures to confirm they cover disputes arising from blockchain-settled transactions.

Ensure customer disclosures make clear when a payment is being settled via a stablecoin, consistent with fair treatment and transparency obligations.

2. Banks Could Lose Deposits Before Consumers Notice the Change

The most consequential competition may not be between stablecoins and physical cash. It may be between stablecoin balances and commercial bank deposits. A customer who can hold digital dollars inside a smartphone wallet may no longer need to maintain the same balance in a dollar bank account. This is particularly relevant outside the United States, where consumers and businesses often seek access to dollars for protection against currency depreciation or to pay international suppliers.

Raj Kamal, Founder and CEO of TransFi, argues that embedded stablecoins create a contest between banks, card networks, fintech companies and technology platforms over who controls the customer balance and the route through which the money moves, with implications for bank deposits, access to digital dollars in countries with unstable currencies, and responsibility for failed or fraudulent payments.

Banks use deposits as a source of funding for lending and other balance-sheet activities. Large-scale migration into stablecoins would not necessarily remove that money from the banking system completely, because issuers may hold part of their reserves as bank deposits. Much of the backing, however, can also be held in Treasury bills and other permitted liquid assets, which changes who controls the funding and where the associated revenue is earned. Stablecoin adoption could also transfer part of the customer relationship to smartphone manufacturers, wallets and payment applications, with the bank continuing to provide accounts or settlement services behind the scenes. At the same time, the technology platform owns the customer interface.

Incumbents retain substantial advantages, including insured deposits, credit provision, fraud procedures, established complaint mechanisms, and access to central bank settlement systems. Stablecoins do not automatically replicate those protections; a token may remain fully backed while a customer still loses access due to a wallet failure, a compromised credential, a blockchain outage, or a dispute with an intermediary. Banks are also becoming participants rather than passive targets. Banking Circle has launched MiCA-regulated stablecoin settlement in Europe, supporting USDC, USDG and its euro-backed EURI alongside fiat settlement, suggesting the eventual outcome may be a division between institutions that incorporate tokenised money and those that leave the customer interface to technology companies.

Why This Matters

Deposit migration affects funding cost, liquidity planning and the resolution and recovery assumptions that underpin prudential regulation. A gradual, largely invisible shift of balances into stablecoins is harder for treasury and risk functions to detect and model than a conventional deposit outflow.

Strategic Implications

Banks face a build, partner or cede decision on tokenised deposits and stablecoin settlement. Firms that delay risk losing the customer interface permanently to wallet and platform providers, even if some reserve funding eventually flows back onto their balance sheets through issuer deposits or Treasury holdings.

Action Required

–    Incorporate stablecoin adoption scenarios into deposit and liquidity stress testing, particularly for currency corridors exposed to depreciation risk.

–    Assess the commercial and regulatory case for tokenised deposit or stablecoin settlement products, referencing precedents such as Banking Circle's MiCA-regulated offering.

Clarify, in customer terms and marketing materials, which protections (deposit insurance, complaints schemes) do and do not extend to stablecoin balances held via partner wallets.

3. Regulatory Clarity Solves One Problem and Creates Another

The GENIUS Act has given issuers and payment companies greater certainty over who may issue payment stablecoins, how reserves must be held and what redemption and disclosure requirements apply. The framework has also moved the debate into implementation. In April 2026, the Financial Crimes Enforcement Network and the Office of Foreign Assets Control proposed rules covering anti-money-laundering and sanctions programmes for permitted payment stablecoin issuers, with a separate proposal issued in June addressing customer identification requirements.

The benefit of this framework is that regulated businesses can evaluate stablecoins against defined requirements instead of relying on uncertain interpretations. The disadvantage is that detailed rules can favour the technologies around which regulators originally designed them. The Midnight Foundation has warned that stablecoin rules could create an implicit preference for fully transparent public blockchains, which make transactions visible to blockchain analytics providers but can also expose the balances and payment histories of legitimate users and businesses.

The laudable policy goal is regulatory visibility, meaning authorised parties being able to see transaction data, not public transparency, meaning everyone being able to see it.

Submission by the Midnight Foundation to FinCEN and OFAC

The Foundation argues that regulators should distinguish between public transparency and regulatory visibility. Under a selective-disclosure model, transaction information could remain confidential to the public while authorised issuers and regulators retain access through viewing keys and cryptographic proofs. Zero-knowledge proofs could allow a transaction to demonstrate that neither party appears on a sanctions list without publishing the underlying details. At the same time, the token contract rejects prohibited payments before settlement, and the issuer retains the ability to freeze or seize assets and to provide records in response to lawful orders.

This model has potential advantages for regulated institutions that cannot place confidential customer and commercial information on an open ledger, but it introduces new supervisory challenges. Regulators must assess viewing-key controls, cryptographic systems, and issuers' ability to provide complete records; a failure in those systems may be harder for outsiders to detect than a transaction on a transparent blockchain. The dispute is therefore not between compliance and privacy; it concerns which architecture can provide both, who verifies that the controls work, and whether regulators will recognise different technical methods as equivalent.

Why This Matters

Firms designing or selecting stablecoin infrastructure are effectively making an early bet on which privacy and transparency architecture regulators will ultimately endorse. Getting this wrong could mean rebuilding compliance tooling or losing access to certain jurisdictions once the rules mature.

Strategic Implications

Compliance and risk functions should treat the transparency-versus-visibility question as an active policy debate rather than a settled design choice. Firms with commercially sensitive treasury, payroll, or supplier payment flows have a direct interest in the outcome, given the exposure risk posed by fully public ledgers.

Action Required

–    Track the FinCEN and OFAC rulemaking process on AML, sanctions and customer identification for payment stablecoin issuers, and respond to consultations where the firm has a material interest.

–    Evaluate exposure created by transacting on fully public blockchains, particularly for treasury, payroll and supplier payments.

Engage with issuers and infrastructure providers on selective-disclosure and viewing-key capabilities as a due diligence criterion, not only cost and liquidity.

4. What Stablecoin Adoption Means for FX and CFD Brokers

For the FX and CFD industry, stablecoins are relevant less as a new tradable instrument than as a funding, withdrawal and treasury rail. Retail brokers operate across jurisdictions and serve clients who expect to deposit funds quickly. Conventional payment methods can be constrained by banking hours, regional card acceptance, correspondent bank delays, and the willingness of payment providers to serve leveraged trading businesses. Stablecoins can give clients another route for moving value into and out of a trading account, including round-the-clock transfers, faster cross-border funding and access to clients in markets where international card or bank payments are unreliable.

The operational requirements extend well beyond displaying a wallet address. A broker must attribute each transfer to the correct client, monitor the source wallet, wait for the required confirmations, apply know-your-transaction controls, reconcile the payment and decide whether funds remain in stablecoins or are converted into fiat currency. A broker accepting several stablecoins across several networks must distinguish between tokens that share a name or dollar value but have different issuers, reserve structures, redemption routes and compliance status, prevent clients from sending supported tokens over unsupported networks, manage transfers associated with high-risk wallets, and account for network fees and exchange-rate differences during conversion.

Regulatory fragmentation adds a further layer. A token available to clients through an offshore entity may not be suitable for a broker's European business, and recent platform decisions to restrict USDT access under MiCA show that a stablecoin's liquidity and popularity do not guarantee consistent availability across jurisdictions. The broker also remains responsible for the customer relationship: a blockchain transaction may be irreversible, but a client can still dispute how the broker credited the account, applied a conversion rate or processed a withdrawal. The same infrastructure may eventually affect broker-to-broker and institutional flows, for example introducing-broker commissions, affiliate payments, liquidity-provider settlement or collateral movements. Marex's acceptance of USDC as initial-margin collateral for regulated derivatives illustrates tokenised money moving beyond retail deposits into established market infrastructure.

Why This Matters

Funding experience is now part of the brokerage product. A firm offering fast deposits but slow withdrawals damages client trust regardless of platform quality or pricing, and stablecoin capability without matching controls creates AML, sanctions and reconciliation exposure disproportionate to transaction volumes.

Strategic Implications

The competitive advantage will not belong to the firm with the longest list of supported tokens. It will belong to the firm that can move funds quickly while maintaining attribution, screening, reconciliation and predictable redemption, and that treats jurisdictional token availability as a live compliance question rather than a fixed feature list.

Action Required

–    Confirm that transaction monitoring and know-your-transaction controls cover multi-network stablecoin transfers, not only fiat rails.

–    Maintain a live register of which stablecoins are permitted for which client entity and jurisdiction, given divergent treatment under MiCA and other regimes.

5. Stablecoins Are Extending Into Capital Markets

The effects are not limited to retail payments and broker funding. Stablecoins are part of a broader shift toward financial markets operating outside traditional exchange and banking hours. Coinbase UK CEO Keith Grose has linked the London Stock Exchange's move toward longer trading hours to the influence of blockchain infrastructure, noting Coinbase's aim to deliver round-the-clock access across stocks, crypto and options, powered by onchain infrastructure.

Extended trading hours create a corresponding need for collateral and settlement assets that can move when banks and traditional payment systems are closed. Stablecoins provide one possible bridge, particularly where trading venues, custodians and clearing firms can accept tokenised collateral while preserving segregation and reporting requirements. The advantage is continuous access to liquidity. The risk is that markets begin operating around the clock while the legal, banking, and operational systems supporting them remain limited in hours: a stablecoin can move on Sunday, but a fiat redemption, court order, compliance review, or reserve-asset transaction may still depend on institutions that reopen on Monday.

Why This Matters

A structural mismatch between continuous trading and non-continuous legal, banking and reserve-management infrastructure creates a specific window of operational and liquidity risk that existing market-hours-based controls were not designed to address.

Strategic Implications

Firms extending trading hours or accepting tokenised collateral should treat weekend and out-of-hours settlement as a distinct risk category, with its own escalation, liquidity backstop, and legal response arrangements.

Action Required

–    Assess whether out-of-hours incident response, legal and compliance cover matches the trading hours the firm or its venues now support.

Confirm segregation and reporting arrangements for tokenised collateral remain intact when accepted outside standard banking hours.

6. The Winners May Not Be the Stablecoin Issuers

The first generation of stablecoin businesses competed primarily on token issuance and liquidity. As adoption broadens, more of the economic value may move to the infrastructure around the token. Wallet providers control access. Payment companies manage conversion and merchant settlement. Compliance firms screen transactions. Custodians protect reserves and customer assets. Banks provide accounts and liquidity. Broker technology providers connect deposits with client records, back-office systems and treasury operations.

Stablecoin issuers will remain important, but the token itself could become increasingly interchangeable from the customer's perspective. The deciding factors may be whether a stablecoin is accepted by regulated intermediaries, redeemable in the required jurisdiction and integrated into the applications consumers and businesses already use. The largest potential losers are intermediaries whose revenue depends on payment delays, closed networks or expensive cross-border routing. However, even they are unlikely to disappear immediately, as card networks, banks and payment processors are already building stablecoin services and positioning themselves between the blockchain and the end user.

Why This Matters

Declaring stablecoins the winner does not resolve the important questions. Adoption brings the technology inside the regulated financial system, where speed must coexist with consumer protection, privacy, liquidity management and operational resilience.

Strategic Implications

Firms should assess their position in the value chain (issuer, wallet, custodian, compliance provider, settlement bank, technology platform) rather than assuming issuance is the only commercially significant role. Positioning around infrastructure, compliance and redemption reliability may prove more durable than competing on token supply.

Conclusion

The first phase of the stablecoin debate proved that stablecoins could maintain large circulating supplies and settle transactions on public blockchains. The second provided legal frameworks for regulated issuance in the United States, the European Union and, in due course, the United Kingdom. The phase now beginning will determine who controls the wallets, deposits, payment routes and compliance systems through which stablecoins reach the rest of the economy.

For regulated firms, the practical task has shifted from monitoring whether stablecoins would be permitted to deciding how, and how quickly, to participate. Banks face a deposit and customer-interface challenge that will not announce itself as a single event but as a gradual erosion of balances and relationships. Brokers face an operational and compliance build that determines whether stablecoin funding becomes a genuine competitive advantage or a source of unmanaged risk. Compliance and risk functions face an unresolved architectural question over transparency and privacy that will shape which infrastructure providers are viable counterparties in the medium term.

None of this is unique to digital assets. It mirrors earlier transitions in payments and banking, where regulatory clarity accelerated adoption and then exposed the harder questions of liability, resilience, and customer protection that clarity alone cannot answer.

Forward-Looking Statement

Over the next twenty-four months, expect the stablecoin conversation to move decisively from adoption to accountability. Regulatory attention in the United States, European Union and United Kingdom will focus on anti-money-laundering controls, sanctions screening, customer identification, and the implementation of privacy-preserving compliance architecture. Banks are likely to respond to deposit pressure with their own tokenised deposit and settlement products rather than ceding the field entirely. At the same time, wallet, payment and custody providers consolidate their position as the primary interface with end customers. FX and CFD brokers, and capital markets infrastructure more broadly, will treat stablecoin funding and collateral capability as a baseline operational requirement rather than a differentiator, shifting competitive advantage toward firms that combine speed with robust attribution, screening and reconciliation.

The following table sets out an indicative timeline of expected developments. It reflects the direction of travel described in this briefing rather than confirmed dates, and should be revisited as rulemaking and market practice evolve.

 Published July 28^th, 2026

⚠️ Disclaimer

This briefing is provided for informational purposes only and does not constitute investment advice, financial advice, trading advice, or any other sort of advice. The Digital Commonwealth Limited does not recommend that any cryptocurrency or digital asset be bought, sold, or held by you. Conduct your own due diligence and consult your financial adviser before making any investment decisions. Past performance is not indicative of future results. The information contained in this briefing has been compiled from sources believed to be reliable. DCW makes no representation or warranty, express or implied, as to its accuracy, completeness, or correctness. All views and opinions expressed herein are those of the authors and do not necessarily reflect the views of The Digital Commonwealth Limited or its affiliates.

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