Finality in payments—the unseen foundation of trust: Navigating uncertainty in a real-time world

by Ram Sundaram, co-founder & chief operating officer, TerraPay

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As instant payments become the norm, true finality is essential to ensure trust, reduce fraud risk, and protect the integrity of global payment systems.

Finality is not a UX feature—it’s the backbone of payment integrity. In an era dominated by instant transactions, the absence of true finality threatens to destabilise financial systems.

The industry challenge: Why finality matters more than ever

Imagine this: A transaction appears successful, with funds debited, notification received, and goods dispatched. Then, minutes later, it’s reversed. There’s a fraud alert, a compliance hold, and an AML flag. What seemed final was conditional.

In real-time payments, “deemed success” is a legacy concept that no longer meets expectations. Instant payments demand instant certainty. Final must mean final—not “probably final,” not “pending regulatory review,” and certainly not “let’s see what the fraud engine says in two minutes.”

This isn’t just a matter of perception—it’s about systemic integrity. As the industry moves toward real-time infrastructure, payment networks must tackle their biggest challenge yet: ensuring true, irreversible finality.

The risks of legacy settlement logic

Payment networks still rely on response codes to indicate transaction status—an outdated approach in a real-time environment. Historically, these codes allowed for assumed success despite backend confirmation delays. Today, that assumption increases risk exposure.

Consider cross-border payments: Milliseconds after funds reach a recipient’s account, they may be withdrawn or spent. The entire downstream process is disrupted if a reversal request is issued due to suspected fraud, sanctions, or operational errors.

These risks include:

  • Merchant losses due to unauthorised chargebacks.
  • Customer disputes over transactions that appeared final but weren’t.
  • FX exposure from failed settlements.
  • Reconciliation anomalies that complicate compliance reporting.

Real-time payments built on non-final settlement logic create friction, and failure to address this will only magnify systemic vulnerabilities.

Industry-wide approaches to finality

Leading financial institutions and payment networks are addressing these challenges through several key strategies:

  • Standardised messaging for settlement integrity
  • Most instant payment networks complete settlements within 2–3 seconds, making reversals functionally impossible.
  • ISO 20022 messaging structures improve cross-border transparency and enhance transactional certainty.
  • Regulatory Alignment & Global Standards
  • FATF compliance strengthens anti-money laundering safeguards and reinforces irreversible settlement.
  • Bilateral regulatory efforts push for unified interpretations of finality across jurisdictions.
  • Front-Loaded Risk Mitigation
  • SWIFT advocates pre-transaction screening to prevent post-settlement disputes.
  • Digital-first treasury management initiatives are enhancing liquidity and compliance integrity.

Cross-border complexity: The true test of finality

Domestic payment systems benefit from harmonised regulatory structures enforcing finality. Cross-border payments, however, face a fragmented landscape:

  • Some jurisdictions allow limited clawbacks, while others enforce finality upon credit.
  • Certain frameworks mandate fund returns under dispute, while others leave it discretionary.
  • These inconsistencies create regulatory arbitrage, operational inefficiencies, and legal ambiguities.

Without a unified finality standard, instant payments remain vulnerable, delaying adoption and increasing systemic risk.

Securing finality in payment networks

Ram Sundaram, co-founder & chief operating officer, TerraPay

Ensuring real-time finality requires proactive infrastructure solutions rather than reactive workarounds. Companies are going to benefit from embedding finality directly into their rails, which can be achieved through:

  • End-to-end transaction references (UETRs)
  • Immutable transaction identifiers simplify audit trails and eliminate status ambiguity.
  • True finality messaging
  • Moving beyond “deemed success” to contractually and technically irreversible payments.
  • Pre-transaction risk screening
  • Fraud, AML, and sanction checks occur before transactions are processed, minimising reversals.
  • Global standards compliance
  • Alignment with ISO 20022 messaging ensures clear transactional status across borders.
  • Regulatory engagement promotes the standardisation of finality principles worldwide.

True finality is not a choice, it’s a necessity.

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Article by TerraPay

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