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November 2026: Fully unstructured addresses will be rejected for Swift and CHAPS payments. Moving forward, only structured or hybrid addresses will be allowed. 
 

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Benefits of Structured Fields

The phased adoption of structured data fields offers various advantages for the global financial ecosystem:  

  • Enhanced data: Provides a richer, more detailed data model that allows for more information to be included with payments. 

  • Efficient processing: Enables greater automation and reduces manual intervention, which in turn minimizes payment delays. 

  • Improved compliance: Helps financial institutions meet Anti-Money Laundering (AML) and sanctions-screening requirements with more precise, structured data. 

  • Better reconciliation: Offers richer remittance information, which improves reconciliation for corporate clients. 

  • Increased transparency: Allows for greater end-to-end transparency and easier tracking of payments.  

As of 30th September 2025 60% of Swift cross-border payments traffic was ISO Native. This represents 2,760,000+ average daily transactions.  

  • November 2025: This is a critical milestone, often called the "end of coexistence," for cross-border payments. 

  • Swift MT retirement: The legacy Swift MT messages will be retired for financial institution payment instructions (MT 1xx and 2xx series), requiring financial institutions to use the new ISO 20022 formats (pacs.008 and pacs.009). 

  • Introduction of hybrid addresses: Hybrid address formats will be permitted for cross-border and domestic cross-border and CHAPS payments, which require a minimum of a structured town/city and country. Swift will also provide an AI tool to help institutions structure existing address data. 

Post-November the 2025 end of the co-existence period the immediate focus will be on leveraging the rich, enhanced data and creating strong use cases.  

As global payment systems modernise, ISO 20022 has evolved from being just a messaging standard to becoming the foundation of data-rich, interoperable, and transparent payments across borders. 

As we approach major implementation deadlines for ISO 20022, what would best describe your readiness to take advantage of the standard?

What do you see as the top benefit of ISO 20022 for your financial institution?

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Choose a Tailored Solution for ISO 20022

Bottomline offers a hosted service dedicated to the transformation and enrichment of financial messages from one network format to the other. This service enables clients to move at their own pace in converting legacy formats to ISO 20022 and vice versa. 

Key Dates for Your Diary

  • November 2027: The UK plans to mandate the use of structured remittance data for CHAPS payments. The deadline for market infrastructures to meet CPMI harmonization requirements for cross-border payments also falls in late 2027. 
     
  • G20 Cross-Border Payments: ISO 20022 is foundational to the G20’s goals for faster, cheaper, more transparent, and inclusive cross-border payments (Speed and Access (2027) and Transparency and Cost (2030). Harmonised messaging standards are critical to overcoming fragmentation and enabling seamless end-to-end payments across both domestic and international rails.

FAQs

Everything you need to know about ISO 20022 to get started

What is ISO 20022 in a nutshell?

ISO 20022 is the emerging global standard for payments messaging. It creates a common language and model for payments data across the globe, which provides higher-quality payment information than other standards and adapts to new needs and approaches.

Many Market Infrastructures, including Swift, are moving their messages to ISO 20022 over the next 2 years. Clearing House Automated Payment System (CHAPS) and TARGET2 Euro payment (T2) are on track for delivery, plus Swift will adopt the rulebook of the Cross-Border Payments Reporting (CBPR+) working group, where there will be a coexistence phase of MT/MX messages up until 2025. Within five years, it’s predicted that around 80% of high-value global payments by volume and 90% by value will have migrated to ISO 20022.

What are some of the challenges companies face in postponing the migration to ISO 20022?

The challenges will be multiple and grow with time. Until you are ISO 20022 Native, you will need to manage translation, enrichment, and a co-existence of standards with counterparties and across your back-office systems. It will increasingly be difficult to manage the data required in ISO 20022 in the legacy standards.

How long would it take to complete the change in process?

A simple connectivity upgrade can be completed at a relatively low cost and over a few months. However, it is the wider impact of ISO 20022 that needs to be considered. Payment, Screening, Matching, and Monitoring Systems need to be able to support ISO 20022 and the additional data elements and increased structure and granularity. This will require upgrades, development, and project work to improve static data. This work will vary enormously by institution.

Are there any drawbacks to ISO 20022?

Technically there is more data to hold, process, and exchange. As a standard, it is more flexible and allows for more data to be exchanged. Market Practice will be key to ensuring that there is consistency in what is expected for transactions in each market. Along with global alignment through such groups as HVCS and CBPR.

How long will it take for everyone to change to it?

Most institutions will be technically ready to receive ISO 20022 in 2023, but many will still be processing in the legacy standards. We will then have a multi-year period of co-existence as markets and participants move over to using ISO 20022. We may see a slow take-up in the beginning and then a snowball effect as main markets and players start to send and ask to receive ISO 20022.

Starting to use ISO 20022 is not the end of the journey. Once participants are familiar with the standard, this will then be the catalyst for the introduction of more structured information. This will then be the beginning of the real benefits of adopting ISO 20022.

How Does ISO 20022 Benefit Your Business?

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Supports transparency and interoperability for domestic and cross-border payments.

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Lowers operating and transaction costs.

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Improves customer data insights and compliance to payment standards. 

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Increases automation and reduces manual intervention.

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Richer customer data aids reconciliation and enhances fraud capabilities.

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Creates new revenue streams through digital overlays.

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Improves customer service and the ability for customers to self-serve.

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Optimises business cycle cash flow. 

EBAday 2025

Bottomline Technologies
TESTIMONIALS

What Our Customers Say

As a satisfied customer, we were confident that by partnering with Bottomline on the message transformation project, we would achieve our primary objective of being able to comply with the ISO 20022 messaging standards within the deadlines set by the BSP. Choosing Bottomline to work with on this project was simply a given.

The experience of onboarding to Bottomline’s hosted Universal Aggregator solution was straightforward, quick and seamless with the great assistance of the Bottomline project team to help with queries and the end-to-end process. The solution, alongside Bottomline’s Secure Payments, allows us to focus on the bank’s core business operations, whilst minimising the risk of payment fraud.

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