For payment operators and treasury teams in Singapore, stablecoins are no longer a fringe experiment. Merchant services in Singapore received nearly US$1 billion in digital asset payments in Q2 2024 alone, according to Chainalysis's 2024 Geography of Cryptocurrency Report. A Singapore Business Review survey cited by payment firms in the market found that six in ten Singapore businesses plan to accept digital asset payments within the next two years. The infrastructure question is no longer whether to adopt stablecoins, but which one to build on.
USDC and USDT together account for approximately 84% of the total stablecoin market by supply (DefiLlama on-chain data, 28 October 2026). Both are pegged 1:1 to the US dollar. Both settle in seconds. But they differ substantially on reserve transparency, regulatory standing, compliance fit, and risk profile, and those differences matter enormously for a finance team, payment service provider, or treasury function making an infrastructure decision.
This guide compares USDC and USDT across the dimensions that matter most for business payments in Singapore: regulatory compliance, reserve quality, operational risk, and settlement suitability. It also includes a decision matrix and risk checklist to help your team make a well-grounded choice.
What Are USDC and USDT?
Before comparing them for business use, it helps to understand how each stablecoin is structured at the issuer level.
USDC is issued by Circle, a US-regulated financial technology company. It is backed 1:1 by cash and short-term US Treasury securities, with monthly reserve attestations conducted by Deloitte. USDC is regulated under US state money transmission laws, holds an EU EMI licence, and is compliant with the EU's Markets in Crypto-Assets (MiCA) regulation. Circle's Cross-Chain Transfer Protocol (CCTP) enables native USDC issuance and redemption across more than 20 blockchain networks.
USDT is issued by Tether International, a company originally incorporated in the British Virgin Islands and redomiciled to El Salvador in 2025. With approximately US$181.8 billion in circulation as of 28 October 2026, it is the largest stablecoin by market capitalisation. USDT has historically relied on quarterly reserve attestations by BDO Italia under ISAE 3000. In 2026, KPMG US completed a full financial statement audit of Tether International's 2025 accounts, issuing an unqualified opinion confirming that total reserves exceeded total liabilities by US$6.81 billion at year-end. However, Tether has not publicly released the full underlying financial statements, and the reserve portfolio includes gold and Bitcoin holdings that fall outside the narrow cash-and-Treasuries model favoured by regulators.
Key distinction: USDC comes from a US-licensed, MiCA-compliant issuer with monthly Deloitte attestations. USDT comes from an offshore issuer with a more complex reserve portfolio and a history of regulatory scrutiny, including a 2021 US$41 million CFTC penalty.
How Does Singapore's Regulatory Framework Apply to USDC and USDT?
This is the most consequential question for payment businesses operating in Singapore, and the answer requires some precision.
Singapore finalised its policy framework for single-currency stablecoins in August 2023. In September 2026, legislative amendments were proposed to implement the Singapore stablecoin regulatory framework. The proposals cover reserve backing, capital, redemption, disclosure, and the treatment of foreign-issued stablecoins. As implementation remains under development, payment companies should verify the latest regulatory requirements before relying on any "regulated stablecoin" designation.
Key requirements include:
- Reserves held in low-risk, highly liquid assets, valued at 100% or more of tokens in circulation at all times
- Full segregation of reserve assets from the issuer's own funds
- Redemption at par within five business days, based on the 2023 finalised policy framework; specific timelines remain subject to subsidiary legislation
- Minimum base capital of the higher of S$1 million or 50% of annual operating expenses, with liquid asset requirements for recovery or orderly wind-down
- Published white paper disclosing the value stability mechanism and holder rights
Are USDC and USDT Regulated Stablecoins in Singapore?
Neither USDC nor USDT currently carries a Singapore-regulated stablecoin designation. Under Singapore's proposed stablecoin framework, the regulated designation would go to issuers licensed under the framework. The September 2026 proposals also introduce a separate proposed "recognised" status for a limited number of foreign-issued stablecoins, subject to case-by-case determination. Neither USDC nor USDT currently holds either designation. Circle Singapore's MPI licence does not, by itself, confer a regulated stablecoin designation on USDC.
Stablecoins that do not qualify under the Singapore stablecoin framework may fall within Singapore's Digital Payment Token regulatory framework. Payment companies should assess whether the activities they or their service providers perform require licensing under the Payment Services Act. However, neither token carries the additional stability and disclosure guarantees that Singapore's framework mandates for locally issued stablecoins.
What this means for compliance teams: Where your organisation's AML/CFT policies, banking relationships, or counterparty agreements require a regulated-stablecoin designation under Singapore's proposed framework, USDC and USDT do not currently satisfy that requirement. Where the requirement is for regulated, compliant stablecoin infrastructure with a licensed intermediary, both may be used through an appropriately licensed platform.
Amendments to the Payment Services Act took effect progressively from 4 April 2024, expanding the regulatory perimeter for Digital Payment Token services to include custody, DPT transmission, and cross-border money transfer facilitation. Payment businesses should verify their service provider's licensing status under the updated PSA framework.
USDC vs USDT: Side-by-Side Comparison for Business Payments
The table below summarises the key differences across the dimensions most relevant to payment operators, treasury teams, and merchants in Singapore.
What the Numbers Mean for Your Business
Market cap is not the same as safety. USDT's larger market cap reflects its longer track record and dominance in emerging-market trading, not a stronger reserve position. For treasury teams concerned with counterparty risk, reserve composition and audit quality matter more than circulation size.
Liquidity advantages depend on the corridor. USDT holds deeper liquidity on Tron-based networks and in Southeast Asian and South Asian payment corridors, where low transaction costs (approximately US$1 per transfer on Tron with staked energy) make it cost-effective for high-volume flows. USDC has stronger liquidity on regulated US platforms and EVM-compatible chains, which matters more for businesses with US dollar settlement requirements or EU regulatory obligations.
Regulatory trajectory favours USDC for institutional use. The US GENIUS Act, signed into law in July 2025, establishes reserve and regulatory requirements for payment stablecoin issuers. USDC's reserve structure appears more closely aligned with these requirements, while USDT's current reserve composition may require adjustments or consideration of the foreign-issuer pathway. Payment companies with US counterparties should monitor implementation requirements and verify the regulatory treatment of each stablecoin before making long-term infrastructure decisions.
Stablecoin Payment Risk Checklist for Singapore Businesses
Before selecting a stablecoin for business payment workflows, your finance and compliance teams should work through the following risk dimensions. This checklist applies whether you are evaluating USDC business payments, USDT business payments, or both.
Reserve and Counterparty Risk
- Does the stablecoin issuer publish independently attested reserve reports at least quarterly?
- Are reserves composed primarily of cash, government securities, or equivalents, not crypto or commodities?
- Has the issuer completed a full financial statement audit by a recognised firm?
- Is the issuer subject to material regulatory enforcement history that could affect token availability or redemption?
Regulatory and Compliance Risk
- Is your payment service provider or settlement infrastructure licensed under Singapore's Payment Services Act?
- Does your counterparty or banking partner accept the stablecoin you intend to use?
- Have you verified whether your jurisdiction-specific AML/CFT policies require a Singapore-regulated stablecoin designation?
- For EU-corridor transactions: does the stablecoin comply with MiCA requirements?
- For US-corridor transactions: does the stablecoin meet GENIUS Act reserve eligibility?
Operational and Settlement Risk
- Does the stablecoin support the blockchain networks your infrastructure already uses?
- Is there sufficient on-chain liquidity for your expected transaction volumes and sizes?
- Can you off-ramp to SGD efficiently through a licensed Singapore provider?
- Are transaction fees acceptable across the networks you plan to use?
- Does your provider support 24/7 settlement, including weekends and public holidays?
Reconciliation and Audit Trail Risk
- Does your settlement platform provide auditable transaction records for regulatory reporting?
- Can you generate SGD-equivalent records for accounting and tax purposes?
- Is there a clear process for handling failed or delayed transactions?
Bottom line: USDC scores better on reserve transparency, regulatory alignment, and institutional compliance fit. USDT scores better on raw liquidity depth and cost efficiency for specific emerging-market corridors. Neither is inherently unsuitable, but the choice has real compliance implications that your team should document and review with legal counsel.
Decision Matrix: Which Stablecoin Fits Your Business Use Case?
Use this matrix to align your stablecoin choice with your specific payment context. Most businesses operating in Singapore will find that the right answer depends on corridor, counterparty requirements, and internal compliance standards, rather than a single universal preference.
A Note on the SGD Settlement Layer
For businesses that need to settle in Singapore dollars, neither USDC nor USDT eliminates the off-ramp step. Both require conversion to SGD through a licensed provider. Under Singapore's Payment Services Act, fiat-to-crypto and crypto-to-fiat conversion services require appropriate licensing. Businesses should confirm that their chosen settlement infrastructure provider holds the appropriate licence for the specific services they require, including SGD off-ramp and DPT transmission.
The practical implication: your choice of stablecoin is often less important than your choice of settlement infrastructure provider. A licensed, compliant intermediary that supports both USDC and USDT gives your business the flexibility to use whichever token your counterparties prefer, without locking into a single-stablecoin dependency.
According to EY-Parthenon's June 2025 survey of 350 corporate and financial services executives, 77% of corporate respondents identified paying suppliers cross-border as the stablecoin use case they find most compelling over the next five years, making cross-border B2B settlement the top-ranked area of interest. This makes the settlement infrastructure layer, not the stablecoin itself, the most strategically important choice for most payment businesses.
How COINUT Supports Stablecoin Settlement for Payment Businesses
For payment operators, merchants, and treasury teams evaluating stablecoin infrastructure, the quality of the settlement layer matters as much as the stablecoin itself. COINUT has operated as a digital asset business since 2013, providing institutional-grade settlement infrastructure for businesses that need reliable, compliant cross-border payment processing.
COINUT supports USDC and USDT settlement as part of a broader digital asset payment infrastructure that includes:
- OTC settlement for high-value transactions requiring negotiated execution and coordinated settlement, reducing market impact for larger payment flows
- Fiat conversion and off-ramp to SGD, USD, CAD, AUD, EUR, HKD, MYR, JPY, and CNH, enabling businesses to receive stablecoin payments and settle in their preferred fiat currency
- Auto-ramp services for fiat-to-stablecoin and stablecoin-to-fiat conversion, supporting business payment flows that require digital asset onboarding or exit
- Virtual account infrastructure for identifiable fiat collection and payment reconciliation, addressing the reconciliation challenges that frequently slow down cross-border payment processing
- 24/7 operations with multi-currency support, enabling settlement across time zones without the banking hours constraints that affect traditional correspondent banking
COINUT operates with a focus on regulatory compliance across multiple jurisdictions. The company's regulatory registrations and memberships include VQF membership in Switzerland, FINTRAC registration in Canada, US MSB registration, and New Zealand FSP registration. Payment businesses evaluating COINUT as a settlement infrastructure partner should verify the current status of applicable licences and registrations for their specific use case and jurisdiction.
For businesses concerned about the stablecoin payment risks outlined in this guide, working with an experienced, compliance-focused digital asset infrastructure provider can help address operational, settlement, and counterparty risks more systematically than relying on unregulated or lightly regulated channels.
To discuss how COINUT's settlement infrastructure can support your stablecoin payment workflows, contact the COINUT team.
Frequently Asked Questions
Is USDC or USDT better for business payments in Singapore?
USDC may be better suited to compliance-sensitive payment workflows due to its reserve transparency and regulatory positioning. USDT may offer liquidity advantages in certain payment corridors and blockchain networks. The appropriate choice depends on counterparty requirements, settlement costs, liquidity availability, and applicable regulations.
Are USDC and USDT legal to use for business payments in Singapore?
USDC and USDT are not generally prohibited for business transactions in Singapore. Depending on the activity, stablecoin-related services may fall under the Digital Payment Token regulatory framework. Payment companies should verify applicable licensing requirements, provider permissions, and regulatory obligations. Neither token currently carries a regulated-stablecoin designation under Singapore's proposed framework.
What is the difference between a reserve attestation and a full audit for stablecoins?
A reserve attestation, typically conducted under ISAE 3000 or AT-C 205 standards, examines whether a stablecoin issuer's reported reserves exceeded token liabilities at a specific point in time. A full financial statement audit is broader, examining the issuer's financial records, transactions, accounting policies, income, cash flows, and supporting evidence across an entire accounting period. KPMG US completed a full financial statement audit of Tether International's 2025 accounts, issuing an unqualified opinion. Tether has not yet publicly released the underlying statements.
What is the stablecoin regulatory framework in Singapore?
Singapore finalised its policy framework for single-currency stablecoins in August 2023. In September 2026, legislative amendments were proposed to implement the framework. The proposed regime covers reserve backing, redemption, capital, and disclosure requirements. Payment companies should verify the latest implementation status with their legal counsel before relying on any specific stablecoin designation.
How does stablecoin settlement compare to traditional bank wire transfers for cross-border payments?
Traditional cross-border bank wire transfers typically take one to five business days and carry correspondent banking fees of US$75 or more per transaction, with additional FX conversion costs and limited settlement visibility. Stablecoin settlement on public blockchain networks typically completes in seconds to minutes, with transaction costs ranging from under US$5 to US$20 on Ethereum during normal network conditions. The trade-off is that stablecoin settlement requires a licensed on-ramp and off-ramp provider, and introduces issuer and platform risks not present in bank wire transfers.
Does COINUT support both USDC and USDT for business settlement?
Yes. COINUT supports USDC and USDT as part of its digital asset settlement infrastructure for payment businesses. COINUT's services include OTC settlement, fiat conversion, auto-ramp, virtual account infrastructure, and 24/7 multi-currency operations. Businesses should confirm the current licensing status applicable to their specific use case before onboarding.
Legal and Regulatory Notice
This article is provided for general information only and does not constitute legal, regulatory, financial, or investment advice, or an offer, solicitation, or recommendation to use any product or service. Regulatory status is specific to the relevant legal entity, jurisdiction and service and may change.
Regulatory status of COINUT: COINUT holds VQF membership in Switzerland, FINTRAC registration in Canada, US MSB registration, and New Zealand FSP registration. Readers should not interpret any reference to regulatory registrations or memberships as confirmation of full licensing in any jurisdiction.
Stablecoin regulatory status: Neither USDC nor USDT currently holds a regulated-stablecoin or recognised-stablecoin designation under Singapore's proposed framework. Depending on the relevant activity and regulatory classification, services involving these tokens may fall within Singapore's Digital Payment Token regulatory framework. Singapore's stablecoin-specific regulatory requirements remain subject to legislative implementation and may change.
Use of stablecoin infrastructure: Businesses considering stablecoin settlement infrastructure should conduct their own legal and compliance due diligence, including review of applicable AML/CFT obligations, counterparty eligibility requirements, and jurisdiction-specific licensing requirements. Stablecoin transactions carry issuer risk, liquidity risk, regulatory risk, custody risk, and technology risk. Past reserve attestations or audits do not guarantee future redemption at par.
Jurisdiction and service availability: COINUT's products and services may not be available in all jurisdictions. Eligibility, supported assets, and service terms are subject to applicable regulatory requirements and COINUT's onboarding criteria.
