FSB Flags Stablecoin Cross-Border Gaps Ahead of G20

The Financial Stability Board has put G20 members on notice: the global rulebook for stablecoins has never been tested under genuine market stress, and the structural weaknesses it has identified, stranded reserves, fragmented insolvency regimes, around-the-clock trading against market-hours-bound assets, are not edge cases. They are baked into how stablecoins currently operate. For accounting firms, auditors, and CFOs working through stablecoin accounting for clients or their own balance sheets, the FSB's October 2026 report is required reading before the G20 finance ministers' meeting on 15 October.

What the FSB Actually Said

The FSB's report centres on one core argument: global stablecoin arrangements are inherently cross-border, yet national regulatory frameworks are developing at uneven speeds and cross-border supervisory cooperation is, in the watchdog's own words, still in its infancy. FSB Chair Andrew Bailey, who also serves as Governor of the Bank of England, made the point plainly in an accompanying letter to G20 finance ministers.

Market size and growth trajectory

The stablecoin market opened 2025 at approximately $206 billion in total capitalisation and has since grown to around $306 billion. The overwhelming majority of that value sits in US dollar-pegged tokens. Much of the current use is as a transit currency between crypto positions, but the FSB acknowledges a credible path toward stablecoins functioning as a mainstream payment rail, which is precisely why systemic-risk scrutiny is intensifying now, before that transition happens at scale.

Key vulnerabilities identified

The report does not read as a generalised warning. It maps specific structural fault lines:

• Untested crisis behaviour. No global stablecoin arrangement has faced a severe, correlated market crisis. Redemption mechanics, reserve liquidation procedures, and cross-border coordination have not been stress-tested in live conditions.
• Multi-issuer reserve fragmentation. When affiliated entities issue the same stablecoin and hold reserves in separate jurisdictions, redemption demand can concentrate on one issuer while the assets it needs sit with another. Moving those reserves across borders may become legally and operationally constrained precisely when speed matters most.
• Insolvency ambiguity. If an issuer fails, determining which country's insolvency rules apply, and therefore how and whether holders can recover their funds, is genuinely unclear under current frameworks.
• Trading-hours mismatch. Stablecoins trade continuously, but the government bonds, money market instruments, and bank deposits backing them have defined market hours. During a run, if redemptions outpace the issuer's ability to liquidate reserves, peg stability breaks down.
• Pseudonymous holder data. The FSB flagged that the pseudonymous nature of on-chain transactions makes it difficult for regulators to determine where holders are based, which complicates both crisis response and jurisdictional enforcement.

The FSB did note one partial offset: deep secondary markets can pull a token back toward its peg through arbitrage, which has historically worked in normal conditions. The concern is a scenario where those markets themselves seize up.

The Multi-Issuer Structure Problem in Detail

This is the section of the report that deserves the most attention from finance professionals, because it directly affects how firms should classify and value stablecoin holdings on the balance sheet.

How the structure works and why it creates risk

In a multi-issuer arrangement, several affiliated entities, often domiciled in different regulatory jurisdictions, can each issue tokens under the same stablecoin brand and may share liability for redemptions. A holder in one jurisdiction may technically be able to redeem with any issuer in the group. That sounds like a safety net, but the FSB points out it is actually a concentration risk in disguise.

If holders converge on a single issuer for redemptions, perhaps because it is the most accessible from their jurisdiction or the only one with an established banking relationship, that entity could face demand it cannot immediately service. The reserves backing those redemptions may be held by a sister entity in another country. Transferring them under stress conditions, navigating capital controls, correspondent banking queues, or competing insolvency filings, could take days. Days are an eternity during a peg break.

Implications for stablecoin accounting and reserve classification

For CFOs and their external auditors, the multi-issuer structure raises a pointed question: when a firm holds a stablecoin issued under a multi-issuer arrangement, which legal entity is actually the obligor? And are the reserves backing that obligation clearly ring-fenced and accessible? If the answers are ambiguous, then classifying the holding as a near-cash equivalent or a liquid asset may not be defensible under IFRS 7, IAS 7, or equivalent US GAAP standards without additional disclosure.

Digital asset accounting software used by firms needs to be able to tag not just the token symbol but the specific issuer entity and the jurisdiction of the reserve custodian. That level of granularity is not always available from standard exchange or wallet data feeds, and the FSB's report signals that regulators will increasingly expect it.

Cross-Border Cooperation: What the FSB Is Calling For

The FSB stopped short of prescribing new binding rules, which is consistent with how it operates: its recommendations are not legally enforceable, but G20 members have a strong track record of translating agreed FSB standards into national legislation and supervisory guidance. The practical question for firms is not whether these recommendations will eventually land in domestic law, it is when and in what form.

The three pillars of the FSB's ask

The report's recommendations cluster around three areas:

1. Cross-border information sharing. Supervisors need real-time or near-real-time access to data about stablecoin holder geography, reserve composition, and redemption flows across jurisdictions. Current data-sharing arrangements, where they exist at all, are too slow for a fast-moving digital asset crisis.
2. Joint monitoring. The FSB wants supervisors to move from siloed national monitoring to coordinated cross-border surveillance, with agreed trigger points and escalation protocols.
3. Distress and failure planning. Perhaps most significantly, the FSB is calling for pre-agreed crisis-management frameworks covering what happens when a major stablecoin issuer faces insolvency, including which jurisdiction leads, how reserves are marshalled, and how holders are protected.

The timing is not accidental. This report landed days before the G20 finance ministers and central bank governors convened on 15 October 2026, putting the issue squarely on the summit agenda.

Accounting and Audit Implications for Firms and CFOs

The FSB's analysis has concrete implications for how accounting professionals should approach stablecoin-related work right now, without waiting for implementing legislation.

Reserve quality and liquidity disclosure

Firms holding stablecoins as treasury assets or as collateral need to revisit their classification of those holdings in light of the FSB's reserve-fragmentation analysis. An asset whose liquidity depends on a cross-border reserve transfer during a stress event is not equivalent to a bank deposit or a T-bill. IFRS 7's liquidity risk disclosure requirements, and the equivalent under ASC 825, require firms to disclose concentrations of liquidity risk. A stablecoin issued through a multi-jurisdiction arrangement could qualify as such a concentration even if the token itself is widely traded.

Going-concern and counterparty risk assessments

For auditors reviewing clients with material stablecoin balances, the FSB report provides fresh grounds to probe management's assumptions about recoverability. If the client holds a stablecoin whose issuer operates a multi-entity structure with reserves in multiple jurisdictions, the auditor needs to understand the redemption waterfall and the legal basis for the client's claim on those reserves. The FSB has effectively said that this cannot be taken for granted.

AML and data obligations

The FSB's concern about pseudonymous holder data intersects directly with AML compliance. Regulators already expect firms to know their counterparties; as cross-border information-sharing frameworks are built out, firms that have robust transaction monitoring in place will face less friction adapting. Those that have not invested in that infrastructure will face a harder transition. Our earlier analysis of stablecoin AML compliance obligations for banks sets out the baseline expectations that are already in force.

The regulatory pipeline firms should track

The FSB report does not arrive in a vacuum. The GENIUS Act in the United States has already set out reserve and redemption requirements for dollar stablecoins, and firms with US exposure need to map those requirements against their current holdings. See our breakdown of GENIUS Act stablecoin compliance obligations for banks for the specifics. At the same time, the regulatory uncertainty created by stalled US legislation has its own accounting dimension, covered in our piece on how the CLARITY Act's failure reshapes stablecoin accounting.

What the Trading-Hours Mismatch Means Operationally

The FSB's observation about 24/7 trading against market-hours-bound reserve assets is not theoretical for treasury teams. A firm that needs to redeem a stablecoin position at 2am on a Sunday faces a materially different execution environment than one redeeming during London or New York business hours.

Practical treasury risk controls

CFOs and treasury managers should treat the trading-hours mismatch as a liquidity risk factor when sizing stablecoin positions. Specifically:

• Identify what assets back the stablecoin holdings in the portfolio and when those markets are open.
• Model the maximum redemption volume the issuer could process outside normal market hours based on publicly disclosed reserve composition.
• Set internal position limits that reflect the weekend and overnight liquidity gap, not just the headline market capitalisation of the token.
• Ensure that treasury policy documentation captures this risk explicitly, since auditors and regulators are likely to ask for it as FSB recommendations filter into supervisory guidance.

What Comes Next

The FSB's recommendations are now formally on the G20 agenda. The pathway from FSB report to binding national rule typically runs through G20 communiqué endorsement, then domestic legislative or regulatory implementation. That process takes time, but the direction is clear and firms that treat this as a distant concern will find themselves behind when implementation deadlines arrive.

For accounting firms serving crypto-native clients or banks with stablecoin exposure, the near-term action items are practical: review how current crypto bookkeeping software captures issuer-entity and reserve-jurisdiction metadata, assess whether stablecoin holdings in client accounts are classified consistently with the liquidity and counterparty risk profile the FSB has now publicly described, and build the documentation trail that will support any future regulatory review.

The stablecoin market has grown rapidly precisely because it has not yet faced a severe test. The FSB is signalling, clearly, that the frameworks need to be ready before that test arrives.

Frequently Asked Questions

What does the FSB stablecoin report mean for firms carrying stablecoin balances?

The FSB's analysis raises questions about whether stablecoin holdings can be reliably classified as liquid or near-cash assets when the issuer operates through a multi-jurisdiction structure. Firms should review reserve composition disclosures and assess whether their current accounting treatment reflects the liquidity and counterparty risks the FSB has identified.

Why is the multi-issuer stablecoin model a specific accounting concern?

When affiliated entities issue the same stablecoin and hold reserves separately, the legal obligor for a given redemption claim may be unclear. That ambiguity affects how the asset should be classified under IFRS 7 or ASC 825, particularly the liquidity risk and counterparty risk disclosures those standards require.

Are the FSB's recommendations legally binding?

No. The FSB issues standards and recommendations that G20 members commit to implementing through their own national legislation and supervisory frameworks. The timeline for domestic implementation varies, but G20 members have a strong record of following through on FSB-endorsed standards.

How does the 24/7 trading and market-hours mismatch affect treasury policy?

Reserve assets backing most major stablecoins trade during defined market hours. If a firm needs to redeem a large stablecoin position outside those hours, whether due to a market event or an internal treasury need, the issuer's capacity to process that redemption at par may be constrained. Treasury policy should reflect this gap through position limits and liquidity buffers.

What data obligations flow from the FSB's concern about pseudonymous transactions?

The FSB flagged that pseudonymous on-chain data makes it hard for regulators to determine holder geography and apply the correct jurisdiction. As cross-border data-sharing frameworks develop, firms will likely face enhanced know-your-counterparty and transaction-reporting obligations for stablecoin flows. Investing in robust transaction monitoring and digital asset accounting software that captures counterparty metadata is the most practical way to prepare.

Source: CoinDesk Policy