Banks and blockchain are increasingly appearing in the same headlines as traditional financial institutions move from cautious observation to deeper integration. They are building their own platforms for cross-border payments, issuing digital currencies and tokenized deposits, and expanding their work with digital financial assets.
The news about Toss Bank fits this trend well. One of South Korea's largest digital banks has signed an agreement with the Solana Foundation to test stablecoin-based cross-border transfers. At this stage, the project is a proof of concept (PoC), not a customer-facing product.
The bank has chosen to examine one of the oldest challenges in finance. Despite years of progress in fintech, sending money across borders is still often slower, more expensive and less transparent than making a domestic bank transfer.
So what exactly is Toss Bank trying to test, and why did it choose blockchain for this experiment?
Why Cross-Border Payments Still Need Blockchain Infrastructure
Cross-border transfers still have plenty of points where users lose visibility and control. Fees, intermediary banks, currency conversion, long processing times and payment statuses often leave people with little idea of where their money is or when it will arrive.
The main challenges usually come down to:
- settlement speed;
- the total cost of the transfer;
- visibility into where the money is;
- the role of intermediary banks;
- foreign exchange (FX) conversion;
- dependence on banking and payment system operating hours.
This is where banks begin looking at new payment rails. If even part of the intermediary layer can be removed, settlements become faster and payment tracking becomes clearer, cross-border transfers start looking less like an old financial system with a modern interface.
What Toss Bank And Solana Are Testing For Stablecoin Remittances
Toss Bank and the Solana Foundation have signed an MOU to develop blockchain infrastructure for cross-border settlement. The first stage will focus on testing stablecoin-based cross-border transfers.
An MOU may sound like a major commitment, but in practice it marks the start of research. It does not mean Toss Bank is already building a finished product or has committed to launching one on a fixed timeline.
The bank plans to test more than speed and transaction costs. The project also includes partner integrations, KYC and AML procedures, and the possible involvement of overseas participants in the payment network.
For Toss Bank, the test looks like an attempt to understand whether blockchain can work as part of banking infrastructure for cross-border settlement, rather than as a standalone crypto product. According to , Toss Bank’s international transfer service covers around 30 countries, while the bank’s user base .




