On 17 April 2026, the Monetary Authority of Singapore (MAS) published a consultation paper proposing a principle-based capital framework that would allow banks to hold cryptoassets on permissionless blockchains — including stablecoins and tokenized traditional assets — without the punitive 1,250%...
"The focus back then was very much on the bitcoins of this world. Now of course everyone is talking about stablecoins. Permissionless ledgers: Are they as risky as we thought? Or is there an argument we can look at this in a different way? We need to start analysing. But we need to be fairly quick on it." — Erik Thedéen, Chair, Basel Committee on Banking Supervision
On 17 April 2026, the Monetary Authority of Singapore (MAS) published a consultation paper proposing a principle-based capital framework that would allow banks to hold cryptoassets on permissionless blockchains — including stablecoins and tokenized traditional assets — without the punitive 1,250% risk weight imposed by the Basel Committee's 2022 standard. The consultation closes 18 May 2026, with an effective date of 1 January 2027.
The move places Singapore ahead of the Basel Committee's own ongoing review and in direct contrast with the European Union, which has adopted a version of the Basel standard largely intact. It aligns Singapore more closely with the United States and United Kingdom, both of which have declined to implement the permissionless blockchain provisions as written. For banks already operating in Singapore's tokenization ecosystem — DBS, OCBC, and UOB among them — the paper converts what was a regulatory ceiling into a defined pathway, subject to exposure caps and risk-mitigation requirements.
The practical effect is measurable. Under a 2% Tier 1 capital exposure cap, DBS alone — with a CET1 ratio above 15% and assets exceeding S$739 billion — could hold several hundred million dollars in qualifying permissionless cryptoassets. Across Singapore's three major banks, the aggregate capacity runs into the low single-digit billions.
The Basel Committee on Banking Supervision finalized its cryptoasset prudential standard in December 2022. The framework divides cryptoassets into two groups. Group 1 covers tokenized traditional assets and stablecoins with effective stabilization mechanisms — these receive capital treatment broadly aligned with their traditional equivalents. Group 2 covers everything else and attracts a 1,250% risk weight on gross exposure.
For context, U.S. Treasuries carry a 0% risk weight. The 1,250% figure is reserved for the riskiest possible exposures and functions, in practice, as a capital-prohibitive activity ban.
The critical line fell at the blockchain level. Under the Basel standard, any asset issued on a public, permissionless network — regardless of design, audit status, or stabilization mechanism — was automatically excluded from Group 1 classification. This meant that USDC, USDT, and tokenized versions of regulated financial instruments all received the same 1,250% treatment if they sat on Ethereum, Solana, or any other permissionless chain.
The Committee initially set a 1 January 2025 implementation date, later extended to 1 January 2026. Industry respondents — including banks, law firms, and trade associations — pushed back, arguing the treatment was "punitive and not technology neutral," according to MAS's summary of consultation responses.
Basel Committee Chair Erik Thedéen acknowledged the pressure in a November 2025 Financial Times interview, noting that both the Federal Reserve and the Bank of England viewed the 1,250% stablecoin treatment as "unrealistic." The Committee confirmed in February 2026 that an expedited review of the cryptoasset standard was underway, but has not yet published revised rules.
MAS's April 2026 consultation paper does not abandon the Basel framework. It proposes a principle-based alternative pathway within it. The core mechanism: banks may classify a permissionless cryptoasset as Group 1 — and apply the corresponding lower capital requirements — if they can affirmatively demonstrate that the associated risks have been adequately mitigated.
Two specific Basel requirements that previously blocked permissionless chain assets from Group 1 have been addressed with principle-based alternatives:
Requirement 1 (Network Risk): The Basel standard required that a cryptoasset's network must not pose material risks to transferability, settlement finality, or redeemability, and that all key network elements be well-defined so transactions and participants are traceable. MAS replaces this with a demonstration-based approach: banks must show that the specific permissionless network they are using provides adequate settlement finality, transaction traceability, and operational resilience.
Requirement 2 (Validator Governance): Basel required that all network node validators be either regulated, supervised, or subject to appropriate risk management standards, with public disclosure of governance frameworks. MAS instead asks banks to demonstrate an absence of material concentration of control among validator nodes, along with monitoring and dispute resolution mechanisms.
The framework distinguishes between two sub-categories within Group 1. Tokenized traditional assets (Group 1a) — such as tokenized bonds, equities, or fund units — would receive capital treatment equivalent to their traditional counterparts. Stablecoins meeting stabilization and redemption criteria (Group 1b) would face a modified but still manageable capital charge.
MAS has set interim exposure and issuance caps that constrain the scale of bank engagement during the consultation period:
| Metric | Local Banks | Foreign Branch Banks | |---|---|---| | Exposure cap (Group 1 permissionless) | 2% of Tier 1 capital | 0.2% of branch total assets | | Issuance cap (Group 1 permissionless) | 5% of Tier 1 capital | 1% of branch total assets |
These caps are modest by design. For DBS — Southeast Asia's largest bank by assets (S$739 billion as of end-2023), with a CET1 ratio above 15% — a 2% Tier 1 exposure cap translates to a capacity in the range of several hundred million Singapore dollars. The 5% issuance cap is larger still, providing room for banks that wish to issue their own tokenized liabilities or stablecoins on public chains.
Across DBS, OCBC, and UOB — all of which maintain CET1 ratios above 15% and carry combined assets exceeding S$2 trillion — the aggregate Group 1 permissionless capacity under the proposed caps sits in the low single-digit billions of Singapore dollars.
Under Basel's unmodified Group 2 standard, banks' total exposures to Group 2 cryptoassets are capped at 1% of Tier 1 capital, with a 1,250% risk weight applying above that threshold. The difference in capital efficiency between the two classifications is substantial.
MAS identifies four categories of risk arising from public, permissionless blockchains that banks must address to qualify for Group 1 treatment:
Settlement Risk: Banks must demonstrate a clearly defined point of transaction finality on the relevant chain. Probabilistic finality — where transactions become increasingly unlikely to be reversed over time — must be addressed with appropriate operational controls.
Operational Risk: Smart contracts used for the cryptoasset must have undergone independent audits. Banks must maintain processes to monitor for and respond to protocol-level vulnerabilities.
Governance Risk: Banks must show that no material concentration of control exists among validator nodes on the network, and that mechanisms exist for monitoring and dispute resolution.
Compliance Risk: Controls must be in place restricting participation to verified users where applicable, with adequate anti-money-laundering and know-your-customer procedures maintained at the bank level.
MAS provides specific safeguards for each risk category. Banks that satisfy these safeguards are presumed to meet the principle-based requirements. This structure offers regulatory predictability while maintaining flexibility for different blockchain architectures and use cases.
The timing reflects three converging pressures.
Competitive positioning. Singapore has invested heavily in tokenization infrastructure through Project Guardian, a MAS-led initiative involving over 40 financial institutions across seven jurisdictions. Project Guardian has progressed from proof-of-concept to live implementations, including tokenized fund subscriptions, cross-border FX settlement using tokenized bank liabilities, and interbank overnight lending settled with wholesale CBDC. But Basel's capital rules have constrained how far these pilots can scale onto bank balance sheets. DBS, OCBC, and UOB completed Singapore's first live wholesale CBDC interbank settlement trial in November 2025. If the banks that run these pilots cannot hold the resulting assets at reasonable capital cost, the initiative stalls.
Jurisdictional divergence. The United States and United Kingdom have both signaled they will not adopt the Basel cryptoasset standard without modification. The Federal Reserve is preparing its own revised capital proposal, with a vote expected as early as March 2026, followed by a 90-day comment period. The Bank of England has likewise declined to adopt the framework unchanged. If Singapore waited for Basel consensus, it risked being left behind jurisdictions that are already moving.
Live market activity. Singapore's banks are no longer running theoretical exercises. OCBC launched GOLDX, a tokenized physical gold fund backed by S$669.4 million ($525.9 million) in assets under management, on Ethereum and Solana on 21 April 2026 — developed in partnership with Lion Global Investors and digital asset exchange DigiFT. DBS operates a digital exchange offering custody and trading across four fiat currencies and four cryptocurrencies. UOB and OCBC have jointly piloted tokenized intraday repo and collateral management on the MAS SGD Testnet Settlement Ledger. The infrastructure exists; the capital framework is the bottleneck.
The scale of Singapore bank engagement with digital assets as of April 2026:
DBS operates the DBS Digital Exchange, providing institutional-grade tokenization, trading, and custody. The bank processed wholesale CBDC settlements in November 2025 and has been a core participant in Project Guardian since its inception. DBS's market capitalization reached $124 billion (S$160 billion) at year-end 2025, placing it among the top 25 banks globally.
OCBC launched GOLDX — Southeast Asia's first tokenized physical gold fund on a public blockchain — on 21 April 2026. The underlying LionGlobal Singapore Physical Gold Fund held S$669.4 million in assets under management as of 16 April 2026. Institutional investors and corporate accredited investors can subscribe using stablecoins or fiat currencies, with tokens delivered to blockchain wallets.
UOB has participated in wholesale CBDC trials and joint tokenization pilots with OCBC on the SGD Testnet, focusing on intraday repo workflows and collateral management. UOB has also engaged in Project Guardian's blockchain and digital asset workstreams.
All three banks maintain CET1 ratios above 15% — at least 5 percentage points above MAS minimum requirements — providing substantial capital buffers for new exposures.
The global regulatory picture for bank crypto capital treatment as of May 2026:
| Jurisdiction | Status | Key Difference from Basel | |---|---|---| | Basel Committee | Expedited review underway; no revised rules published | 1,250% risk weight on all permissionless chain assets | | Singapore (MAS) | Consultation paper published 17 Apr 2026; closes 18 May 2026 | Principle-based Group 1 pathway for permissionless assets | | United States (Fed) | Revised capital proposal expected Q1-Q2 2026 | Declined to adopt permissionless provisions as written | | United Kingdom (BoE) | Not adopting Basel standard unchanged | Reviewing approach to permissionless blockchain treatment | | European Union | Partially adopted Basel standard | Applying standard largely intact, excluding some permissionless provisions |
The fragmentation creates regulatory arbitrage opportunities. Banks in jurisdictions with workable permissionless frameworks can custody, issue, and transact in stablecoins and tokenized assets at materially lower capital cost than competitors subject to the unmodified Basel standard. For EU-domiciled banks in particular, the gap is widening.
MAS published a consultation paper on 17 April 2026 proposing principle-based Group 1 capital treatment for cryptoassets on permissionless blockchains, with a consultation closing date of 18 May 2026 and an effective framework date of 1 January 2027.
The proposal replaces the Basel standard's blanket exclusion of permissionless chain assets from Group 1 with a risk-based demonstration framework, subject to 2% Tier 1 exposure caps for local banks and 0.2% of total assets for foreign branches.
Singapore's three major banks — DBS, OCBC, and UOB — are already operating tokenization, custody, and digital asset infrastructure, and all maintain CET1 ratios above 15%.
OCBC's GOLDX launch on Ethereum and Solana (21 April 2026, S$669.4M AUM) and the November 2025 wholesale CBDC interbank settlement trial demonstrate that bank-grade activity on public chains is already live, not theoretical.
The Basel Committee's own expedited review of its cryptoasset standard remains in progress, with no revised rules published. Singapore is not waiting.
Jurisdictional fragmentation in crypto capital rules — with the US, UK, and Singapore all departing from Basel — is creating a multi-speed regulatory landscape that will shape where banks build digital asset operations.
Singapore's consultation paper is not a deregulatory move. MAS has not lowered its prudential standards or increased its risk appetite. What it has done is replace a technology-specific prohibition with a risk-based assessment framework, bounded by conservative exposure caps.
The practical significance lies in the gap between where Singapore's banks already are and where the Basel standard would have them be. DBS, OCBC, and UOB are running live tokenization, custody, and settlement operations on public blockchains. The 1,250% risk weight made this activity economically irrational at scale. A Group 1 pathway makes it economically viable, within defined limits.
The consultation closes on 18 May 2026. Given that the final framework is not expected before 1 January 2027, the industry responses over the next three weeks will shape Singapore's crypto banking rules for years. Whether other jurisdictions follow Singapore's approach or wait for Basel to revise its standard will determine which financial centers capture the institutional crypto infrastructure layer — and which concede it.