Why Banks Need Payment Rails — And Why Tokenized Finance Is Forcing a New Conversation

When people hear "payments," they think of apps, cards, and QR codes. The consumer experience is the tip of the iceberg. Beneath it sits an intricate web of infrastructure that clears, settles, audits, and governs every financial obligation across institutions that do not share the same systems, risk appetites, or regulators.

A payment system — formally defined by the Bank for International Settlements — is "a set of instruments, procedures and rules for the transfer of funds between or among participants; the system includes the participants and the entity operating the arrangement."

This definition carries weight. A payment rail is not software. It is a governed network comprising five distinct layers:

Payment Rail Architecture
Architecture 1. Anatomy of a payment rail — the five layers every shared infrastructure must provide

Each layer must function in concert. A messaging standard without operational infrastructure is a specification. An operational system without governance is a liability. And governance without participants is a policy document. Rails are only valuable when all five layers work together — and when enough institutions join the network to create critical mass.

Banks build formidable internal systems: core banking platforms, fraud engines, compliance layers, and digital channels. But shared rails present fundamentally different challenges.

Network Economics

A rail becomes valuable only when many institutions participate. A privately-built rail is internal plumbing unless others adopt it. The economics of payment networks follow Metcalfe's Law — value scales with the square of participants. Building a "bank rail" that serves one institution is like building a telephone network with one phone.

Multi-Party Governance

Membership rules, operational incident handling, dispute resolution, and participant monitoring are utility-like responsibilities. A single bank carrying these obligations faces inherent conflicts of interest and regulatory friction. The operator must be a neutral party with governance structures that balance the interests of all participants.

Settlement Finality and Systemic Risk

Payment systems sit at the core of financial stability. Central banks define, designate, and supervise systemically important payment systems precisely because they underpin economic confidence. Settlement finality — the irrevocable, unconditional transfer of value — requires legal certainty that individual banks cannot provide unilaterally.

The inefficiency of cross-border payments is not theoretical. The numbers tell a stark story.

Global Remittances: $905 Billion, Still Expensive

Global remittance flows reached an estimated $905 billion in 2024, up from $865 billion in 2023, according to the World Bank. Yet the cost of sending money across borders remains stubbornly high.

The World Bank's Remittance Prices Worldwide database reports a global average cost of 6.49% as of Q1 2025. Costs vary dramatically by channel:

Remittance Costs by Channel (Q1 2025)
Figure 1. Global average cost of sending $200 by channel. Bank transfers remain the most expensive option at nearly 11%. Source: World Bank RPW Q1 2025.

For a family sending $200 home, a 10.90% bank fee means $21.80 lost to intermediaries. Mobile operators have driven costs down to 3.83%, but the infrastructure gap between channels reveals the underlying problem: legacy rails were not designed for small-value, high-frequency, cross-border transfers.

Real-Time Payments: 266 Billion Transactions and Accelerating

The demand for speed is reshaping domestic payments. Real-time payment systems processed 266.2 billion transactions in 2023, a 42.2% increase year-over-year, according to ACI Worldwide's Prime Time for Real-Time report.

Global Real-Time Payment Transactions
Figure 2. Global real-time payment transaction volumes 2019–2024 (estimated). The 42.2% YoY growth in 2023 signals a structural shift from batch to instant. Sources: ACI Worldwide, FIS Global Payments Report.

India's UPI alone processed over 130 billion transactions in 2023. Brazil's PIX surpassed 42 billion. The UK's Faster Payments, Singapore's PayNow, and the ECB's TIPS are expanding rapidly. The message is clear: domestic real-time is no longer a pilot. It is the expectation.

But cross-border real-time remains fragmented. Connecting domestic instant payment schemes requires interoperability that legacy correspondent banking cannot provide.

Pakistan: A Market Moving Fast

Pakistan's digital payments ecosystem demonstrates the velocity of change in emerging markets. The State Bank of Pakistan reports:

• 9.1 billion retail payment transactions worth PKR 612 trillion in FY25
• Raast (Pakistan's instant payment system) processed 544 million transactions worth PKR 12.8 trillion in Q1 FY26 alone
• Raast P2P volumes reached 535 million transactions; P2M (merchant) payments hit 4.3 million

These numbers represent a population leapfrogging legacy infrastructure. Pakistan's digital payment growth outpaces many developed markets, creating demand for modern rails that connect domestic real-time with cross-border flows.

The conversation about distributed ledger technology in payments is not driven by ideology. It is driven by two structural shifts that are converging simultaneously.

Shift 1: Payments Are Becoming Data-Rich and Standards-Driven

SWIFT's cross-border payments coexistence period ended on 22 November 2025, making ISO 20022 the mandatory standard for in-scope payment instructions. This is not a minor technical migration. ISO 20022 messages carry structured, rich data — party identifiers, purpose codes, regulatory information — that legacy MT messages could not support.

The Committee on Payments and Market Infrastructures (CPMI) is publishing harmonized ISO 20022 requirements to drive global consistency through at least end-2027. The implication: payment messages now carry enough data to enable programmable workflows, automated compliance, and machine-readable settlement instructions.

DLT platforms that natively support ISO 20022 messaging can bridge the gap between traditional payment networks and on-ledger settlement — without requiring banks to abandon their existing standards.

Shift 2: Real-World Asset Tokenization Is Pulling Settlement Into Always-On Markets

Tokenization has moved from proof-of-concept to early scale. The numbers are still modest relative to global capital markets, but the trajectory is unmistakable.

Tokenized Asset Market Cap Growth
Figure 3. Tokenized asset market capitalization 2019–2030 (projected). McKinsey estimates ~$2T by 2030 (excluding crypto/stablecoins). Deutsche Bank Research puts 2025 at ~$331B including stablecoins. Sources: McKinsey, Deutsche Bank Research, Citi GPS.

Key data points from institutional research:

• McKinsey estimates tokenized market capitalization could reach approximately $2 trillion by 2030 (range $1T–$4T), excluding cryptocurrencies and stablecoins
• Deutsche Bank Research estimates tokenized assets grew to approximately $331 billion (including stablecoins) by November 2025, up from roughly $4 billion in 2019
• Citi GPS notes stablecoin issuance at approximately $300 billion in 2025, projecting $1.9 trillion by 2030 (base case) and $4.0 trillion (bull case)

BlackRock's BUIDL fund, Franklin Templeton's BENJI, and JPMorgan's Onyx Digital Assets are no longer experimental — they are live products serving institutional clients.

When real-world assets — treasuries, funds, private credit, commodities, receivables — become tokenized, they transform into programmable building blocks. But the critical challenge is not issuance. It is liquidity and settlement.

RWA Tokenization Lifecycle
Lifecycle 2. Tokenization lifecycle — from real-world asset to programmable on-ledger representation

Tokenization improves liquidity through three mechanisms:

Fractional Access

Tokenization enables assets to be divided into smaller units, widening the investor base. A $100 million bond can be fractionalized into $1,000 tokens, enabling participation from investors who were previously excluded by minimum investment thresholds. More participants mean deeper markets and tighter spreads.

Faster Transfer and Tighter Collateral Loops

When assets and cash-like instruments move with fewer operational hops, collateral can be mobilized faster. This matters for treasury management, margining, and intraday liquidity. A tokenized treasury bill that settles in seconds rather than days means institutions can optimize their balance sheets in real time.

24/7 Markets

If markets operate outside traditional hours, settlement infrastructure must keep pace — or liquidity fragments across venues and time windows. Tokenized assets on DLT rails can settle continuously, eliminating the "overnight gap" that forces institutions to hold excess liquidity as a buffer.

The lesson banks have already learned: tokenization without interoperability creates many small ponds of liquidity. The winners will be the rails that aggregate participants under governed rules, preserve privacy, and provide audit-ready evidence.

The most tangible benefit of DLT-based settlement is the elimination of intermediaries. Traditional cross-border payments can involve three to five correspondent banks, each adding latency, cost, and opacity.

Traditional vs DLT Settlement
Tx Flow 3. How DLT-based settlement reduces intermediaries from five hops to two

A DLT rail reduces the settlement chain from multiple correspondent bank hops to a direct, bilateral exchange with cryptographic proof of finality. The compliance check happens once, at the rail level, rather than being duplicated at every intermediary.

This architectural simplification delivers measurable benefits:

• Settlement time: From T+2 (or worse) to T+0
• Cost: Elimination of nostro/vostro pre-funding and correspondent bank fees
• Transparency: Full transaction traceability on an immutable ledger
• Finality: Cryptographic proof of settlement, not probabilistic confirmation

Banks are not going to migrate to new infrastructure on the basis of whitepapers and pilot demos. Decades of regulatory scrutiny and operational discipline have made financial institutions rigorous evaluators of infrastructure risk. Any new rail — whether DLT-based or otherwise — must satisfy five non-negotiable requirements:

1. Clear Settlement Model What settles where? What does "final" mean? Is settlement in commercial bank money, central bank money, or tokenized deposits? The settlement model defines the credit risk profile of the entire network.

2. Governance and Liability Who operates the rail? What are the membership criteria? How are operational incidents handled? What is the dispute resolution process? Banks need governance structures with clear liability frameworks, not decentralized aspirations.

3. Interoperability Does the rail support ISO 20022? Can it integrate with existing core banking systems through standard API patterns? Is there a migration path from legacy to modern rails — or does adoption require a "big bang" cutover?

4. Compliance Controls Embedded in Flow Limits, permissions, and evidence must be built into the transaction lifecycle — not bolted on after the fact. Sanctions screening, AML monitoring, and regulatory reporting should be native capabilities, not optional modules.

5. Operational Resilience Monitoring, failover, security posture, and disaster recovery are table stakes. Banks operate under regulations (like DORA in the EU) that mandate operational resilience for critical third-party providers. Any rail that handles systemic volumes must meet these standards.

What is a payment rail?

A payment rail is the shared infrastructure, messaging standards, rules, and governance that enable institutions to clear and settle payments between each other. Examples include SWIFT, SEPA, Fedwire, and emerging DLT-based settlement networks.

Why can't banks just build rails themselves?

Banks can build internal plumbing. The challenge is multi-party coordination: governance, risk containment, settlement finality, interoperability, and regulatory oversight. These are utility-like functions that require neutral operators and collective participation.

Why are DLT rails being discussed now?

Because tokenized assets and programmable workflows are increasing, ISO 20022 has become mandatory for cross-border messaging, and major central banks are actively exploring interoperability between DLT platforms and settlement in central bank money (CBDCs).

Why permissioned DLT rather than public blockchains?

Banks require selective disclosure, verified identity, privacy, and controlled participation. Permissioned DLT architectures provide point-to-point encrypted, need-to-know data sharing — design goals aligned with regulated financial services.

What is atomic settlement?

Atomic settlement ensures that two legs of a transaction (e.g., delivery of an asset and payment of cash) either both complete or neither does. DLT enables this through smart contracts that execute both operations in a single, indivisible transaction — eliminating counterparty risk during the settlement window.

How does tokenization improve liquidity?

Tokenization enables fractional ownership (wider investor base), faster collateral mobilization (seconds vs. days), and 24/7 market access (no overnight settlement gaps). Combined with governed rails, these mechanisms create deeper, more efficient markets.

Bridge Intelligence is building a compliance-native settlement and messaging rail designed for banks, PSPs, and regulated digital-asset participants. Our infrastructure focuses on three principles:

• Interoperability: ISO 20022 native, REST API integration, and backward compatibility with legacy rails
• Provable controls: Compliance checks embedded in transaction flow, not added as an afterthought
• Audit-ready evidence: Immutable transaction records with full traceability for regulators

If you are a bank, PSP, or financial institution evaluating new payment infrastructure, the right first conversation is not about blockchain. It is about settlement model, governance, interoperability, and return on investment.

Talk to our team to start the conversation.

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Sources: Bank for International Settlements (CPMI), World Bank Remittance Prices Worldwide (Q1 2025), ACI Worldwide Prime Time for Real-Time 2024, State Bank of Pakistan Annual Report FY25, McKinsey Global Institute "Tokenization: A digital-asset deja vu" (2024), Deutsche Bank Research "The Future of Payments" (2025), Citi GPS "Money, Tokens, and Games" (2024), SWIFT ISO 20022 Programme.