The Stablecoin Card Is About to Upend the Payment Industry: The World After Visa and Mastercard
3-Point Summary
- Stablecoin cards bypass traditional Visa and Mastercard rails, enabling a new low‑fee payment infrastructure that challenges decades‑old card economics.
- On‑chain payments combine authorization, settlement, and state updates in real time, allowing merchants to keep more revenue while users and processors gain higher rewards and margins.
- Crypto card spending has already reached $759M per month and is on track to hit 0.1%–0.2% of global card volume within a year—enough to meaningfully erode legacy card network revenue.
Stablecoin cards look like traditional payment cards, but underneath they run on blockchain rails that bypass legacy networks entirely.
20‑Second Shorts Video (Updated August 14, 2026)
The Card That Bypasses Visa & Mastercard — Payments Will Never Be the Same #StablecoinCard #OnchainPayments #FintechRevolution
The Stablecoin Card Is About to Upend the Payment Industry: The World After Visa and Mastercard
Stablecoin cards may look identical to traditional Visa or Mastercard products, but internally they operate on a completely different payment infrastructure. This technology bypasses legacy card networks and has the potential to restructure fee systems that have remained unchanged for decades.
Stablecoins are dollar‑based assets, and when used at scale, they directly influence money circulation and payment infrastructure. Meta reaches 3.5 billion users across Facebook, Instagram, and WhatsApp. If stablecoins are integrated into these platforms, the world’s largest payment and remittance network will emerge overnight. (See: 3.5 Billion Users and Stablecoins: The New Financial Frontier Meta Has Opened)
Traditional card networks structurally separate authorization and settlement. In contrast, on‑chain payments execute authorization, settlement, state updates, and smart‑contract logic simultaneously. This transforms payments into real‑time financial infrastructure. (See: Visa Isn’t as Fast as You Think — And Blockchain Just Passed It)
In 2026, three major trends are converging: global stablecoin payment expansion, rapid real‑world asset (RWA) tokenization, and explosive on‑chain liquidity growth. Together, they signal that blockchain‑based payments are becoming a core pillar of the new financial order. (See: The Stablecoin Surge and the Native Token Crisis: The Future of Blockchain Security)
Japan is already seeing rapid real‑world adoption of stablecoins. Amazon Japan logistics partners—2,300 workers—now receive payroll in stablecoins, and POS payments and institutional settlement are being deployed in live industrial environments. (See: Japan’s Stablecoin Adoption Has Begun: Payroll for 2,300 Workers, POS Payments, and Institutional Settlement)
Together, these developments show that stablecoin cards are not merely a new payment option—they are a catalyst for structural transformation across global financial infrastructure. They may resemble traditional cards on the surface, but underneath, an entirely new financial system is already operating.
1) Traditional Card Payment Structure: Merchants Bear the Highest Cost
Credit card payments are convenient for consumers but costly for merchants. When a customer pays $100, the merchant receives only $97.80. The remaining $2.20 (2.2%) is split among:
- Issuing bank (e.g., KB Bank): interchange fee
- Card network (Visa/Mastercard): network fee
- Acquirer/payment processor: processing fee
This high‑cost structure has persisted for decades. Merchants tolerate it because card acceptance is essential. Interchange fees also fund card reward programs—meaning merchants indirectly pay for consumer rewards.
2) How Stablecoin Payments Bypass Card Networks
Stablecoin cards look like traditional cards, but the payment flow is entirely different. When a user initiates a payment, the processor checks whether the user has sufficient stablecoin balance. If so, the transaction bypasses Visa/Mastercard entirely.
The payment flows directly from user wallet → blockchain → merchant wallet. Authorization is replaced by blockchain confirmation, eliminating issuing bank, network, and acquirer fees.
- User wallet stablecoin balance check
- Processor generates blockchain transaction
- Recorded on Ethereum, Solana, Tron, etc.
- Merchant receives stablecoins instantly
This dramatically simplifies payment infrastructure, reduces fees, increases merchant revenue, boosts user rewards, and improves processor margins.
3) Where Do KB Bank and Visa’s Fees Go?
Because stablecoin payments bypass card networks, revenue previously captured by issuing banks, Visa/Mastercard, and acquirers shifts to two destinations:
- Stablecoin payment processors such as RedotPay, KAST, and Karta
- Merchants, who retain more of each transaction
For example, merchants receive only $97.80 from a $100 card payment, but up to $99.90 via stablecoin payments (only gas fees).
4) Crypto Card Usage Is Already Significant—and Will Grow Faster Next Year
Stablecoin‑based payments have moved beyond experimentation. Monthly crypto card spending has reached $759M.
Relative to the global card market—estimated at $1.5–1.7 trillion per month—this represents:
- Current crypto card share: ~0.04%–0.05%
Growth is accelerating. Over the past two years, crypto card usage increased more than tenfold, driven by programs like RedotPay, EtherFi, KAST, and Karta.
At this pace, stablecoin card payments could reach 0.1%–0.2% of the global card market within a year—equivalent to $1.5B–$3B in monthly volume. This is enough to meaningfully erode traditional card network revenue.
Stablecoin cards are still early, but their growth trajectory suggests that the shift of card network revenue toward blockchain rails is already underway.
Conclusion
Stablecoin cards are not just a convenience feature—they are a new payment rail that restructures traditional card economics. Crypto card spending already accounts for $759M per month, or 0.04%–0.05% of global card volume, and is likely to reach 0.1%–0.2% within a year.
- Merchants earn more with lower fees
- Users gain access to higher rewards
- Stablecoin processors capture new revenue streams
- Banks and card networks see declining fee income
Stablecoin cards may resemble traditional cards, but internally they run on blockchain payment rails that bypass legacy networks. They are the Trojan horse of the payment industry—quietly shifting revenue flows toward on‑chain systems.
Younchan Jung
Researcher exploring structural shifts in AI, blockchain, and the on‑chain economy.
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