Stablecoins — cryptocurrencies pegged to fiat currencies like the US dollar — processed over $7 trillion in transaction volume in 2025. That’s comparable to Visa’s global payment volume and significantly larger than Western Union’s annual remittance flows.

Traditional foreign exchange markets still dwarf stablecoins. The forex market handles about $7.5 trillion per day, not per year. But stablecoins are creating parallel payment rails that compete with traditional forex infrastructure for specific use cases, particularly cross-border remittances and international commerce.

Here’s what’s happening and what it means for forex markets and currency exchange.

What Stablecoins Actually Are

Stablecoins are cryptocurrencies designed to maintain a stable value relative to a reference asset, usually the US dollar. The two largest stablecoins are USDT (Tether) and USDC (USD Coin). Both claim to be backed 1:1 by reserves — you can theoretically redeem one USDT for one USD.

The stability mechanism differs from traditional forex. Forex rates float based on supply and demand for currencies. Stablecoins maintain parity through reserves and arbitrage. If USDT trades below $1, arbitrageurs buy it and redeem for $1, capturing the spread and pushing the price back up. If it trades above $1, they mint new USDT and sell it, pushing the price down.

This works most of the time. Occasionally stablecoins “de-peg” temporarily when reserves are questioned or demand is extreme. But generally, major stablecoins track their reference currency within 0.5-1%, which is close enough for most payment use cases.

The Cross-Border Payment Use Case

This is where stablecoins genuinely compete with traditional forex infrastructure.

Traditional international payment flows work like this: Australian business wants to pay Indian supplier. Business converts AUD to USD through forex broker. USD gets sent via SWIFT network to Indian bank. Indian bank converts USD to INR. Supplier receives INR. This takes 2-5 days and costs 2-4% in fees and spread.

Stablecoin flows work like this: Australian business converts AUD to USDC on crypto exchange. USDC is sent to supplier’s crypto wallet within minutes. Supplier converts USDC to INR on local exchange. Total time: under an hour. Total cost: 0.5-1.5% depending on exchange fees and liquidity.

For businesses making frequent international payments, particularly to countries where traditional banking is expensive or slow, stablecoins provide faster, cheaper infrastructure.

Where Stablecoins Work Well

Remittances: Filipino workers in Australia sending money home. Converting AUD to USDT, sending to Philippines, and converting to PHP is faster and cheaper than traditional remittance services. This is driving significant adoption in Southeast Asian and Latin American corridors.

International commerce: E-commerce businesses paying suppliers or contractors in different countries can use stablecoins to avoid forex fees and delays. This is particularly common in crypto-native businesses but spreading to traditional commerce.

Dollar access in unstable economies: People in countries with currency instability or capital controls use stablecoins to access dollar-denominated value. This is significant in Argentina, Turkey, Nigeria, and Lebanon where local currency inflation or restrictions make USD attractive.

Crypto trading: Stablecoins serve as the base currency for cryptocurrency trading. When you sell Bitcoin, you typically sell to USDT or USDC, not directly to fiat currency. This accounts for most stablecoin transaction volume.

Where Stablecoins Don’t Compete

Large institutional forex: Corporations hedging currency exposure or managing treasury operations don’t use stablecoins. The regulatory framework, liquidity depth, and settlement certainty of traditional forex markets is necessary for these use cases.

Spot forex trading: Retail and institutional forex traders use regulated forex brokers, not stablecoins. The forex market offers leverage, tight spreads, and regulatory protection that crypto exchanges don’t match.

Central bank operations: Central banks conduct monetary policy and manage reserves through traditional forex markets, not stablecoins. The scale and regulatory requirements make stablecoins unsuitable.

Most consumer payments: Australian consumers using credit cards overseas aren’t using stablecoins. The conversion happens automatically through existing payment networks. Stablecoins require conscious adoption and some technical capability.

The Regulatory Environment

Stablecoins operate in regulatory grey zones in most countries. They’re not quite securities, not quite currencies, not quite payment systems. Regulators are still determining appropriate frameworks.

Some jurisdictions have moved faster. The EU’s Markets in Crypto-Assets (MiCA) regulation provides a framework for stablecoin issuance and operation. Singapore has a Payment Services Act covering stablecoins. The US is debating stablecoin legislation but hasn’t enacted comprehensive rules yet.

Australia’s regulatory approach has been cautious. Stablecoins aren’t prohibited, but they’re not formally integrated into the payments system either. The RBA is exploring a wholesale central bank digital currency (CBDC) but hasn’t committed to retail CBDC that would compete directly with stablecoins.

This regulatory uncertainty limits institutional adoption. Large corporations and banks can’t build payment infrastructure on stablecoins when regulatory status might change dramatically.

The Reserve Question

Stablecoin issuers claim their coins are backed by reserves. USDC publishes monthly attestations showing reserves. Tether publishes quarterly reports. But these aren’t audits in the traditional sense, and there have been questions about whether reserves match claimed amounts.

If a major stablecoin collapsed because reserves were insufficient, it would damage the entire stablecoin ecosystem and potentially create financial contagion. The risk is real, even if it hasn’t materialized yet.

Regulated stablecoins with proper oversight and audited reserves would reduce this risk, but most existing stablecoins operate with lighter oversight than banks or payment providers.

The Effect on Traditional Forex

Stablecoins haven’t significantly displaced traditional forex volumes yet. But they’re creating competitive pressure in specific segments:

Remittance providers like Western Union and MoneyGram face stablecoin competition. Their business models rely on fees and spreads that stablecoins undercut.

Cross-border payment processors like TransferWise (now Wise) and OFX compete partly on speed and cost. Stablecoins are faster and often cheaper.

Forex brokers handling small business international payments are starting to see clients use stablecoins for payments to countries where stablecoins are liquid.

The competitive effect is modest for now, but growing. As stablecoin liquidity improves and regulatory clarity increases, more payment volume could shift from traditional rails to stablecoin infrastructure.

Central Bank Digital Currencies (CBDCs)

Many central banks are exploring CBDCs partly in response to stablecoin growth. A government-issued digital currency could provide the efficiency benefits of stablecoins with the stability and regulatory framework of traditional currency.

China has launched a digital yuan that’s being adopted domestically. The EU is developing a digital euro. Australia is researching a digital AUD.

If CBDCs become widely available, they could compete with both stablecoins and traditional payment infrastructure. A digital AUD could make cross-border payments faster and cheaper without requiring conversion to crypto stablecoins.

The Technology Advantage

Stablecoins run on blockchain infrastructure that’s programmable. You can build automated payment systems, smart contracts, and financial applications on top of stablecoin rails in ways that are difficult with traditional banking infrastructure.

This programmability creates opportunities for new financial services. Automated escrow, conditional payments, and integration with decentralized finance (DeFi) protocols all become possible.

Traditional finance is developing similar capabilities through APIs and open banking frameworks. But blockchain-based systems have architectural advantages for certain applications.

Risks and Challenges

Regulatory crackdowns: Governments could restrict or ban stablecoin use if they view it as threatening monetary sovereignty or enabling illicit activity.

Reserve failures: A major stablecoin losing its peg would damage confidence across the ecosystem.

Technology risk: Smart contract bugs, blockchain failures, or exchange hacks could result in loss of funds.

Scaling limitations: Current blockchain infrastructure has throughput limits. While adequate for current volumes, they might constrain growth.

My Take

Stablecoins have carved out genuine use cases in cross-border payments and crypto trading. They’re not replacing forex markets — the scale difference is too large — but they’re creating alternative infrastructure that matters for specific applications.

For individuals and businesses making regular international payments to countries where stablecoin infrastructure is developed, it’s worth exploring. The cost and speed advantages are real.

For traditional forex market participants, stablecoins are worth monitoring but not an immediate threat. The institutional forex market, forex trading, and large-scale currency management continue operating through traditional channels.

The next 3-5 years will be telling. If regulatory frameworks emerge that give stablecoins legitimacy and oversight, adoption could accelerate significantly. If major stablecoins fail or regulators crack down hard, the sector could contract.

For now, stablecoins exist parallel to traditional forex infrastructure, competing in specific niches while traditional markets continue handling the vast majority of global currency exchange. That’s probably sustainable medium-term, though the balance might shift as technology and regulation evolve.