ISO 20022: what changes for companies after the migration

With the effective adoption of the ISO 20022 standard at the end of November 2025, the international payments system has undergone one of its most significant transformations in recent years. The new standards have introduced a new common language, which is richer and more structured.

Indeed, there will be a phase of gradual, complete replacement of the MT (Message Type) standards with MX (XML) standards. More importantly, from now on, the focus of value will shift from technical adoption to the correct and consistent use of data, as part of an evolutionary process that will continue over the coming years according to the timetable set by the international payments community.

For companies, therefore, ISO 20022 is not just a technical upgrade of banking infrastructures.  The migration represents a genuine structural renewal of the way in which financial information is created, transmitted and used along the entire payment chain. 

The change concerns the quality and structure of the information that accompanies each transaction.  It is at this level that the most tangible benefits will be achieved: greater automation, improved reconciliation, more efficient controls and more streamlined management of international operations.

Once the technical transition is complete, a more operational phase begins: data quality, the correct compilation of flows and integration into business processes become the necessary conditions for translating ISO 20022 into tangible benefits.

ISO 20022: A NEW STANDARD FOR MORE STRUCTURED PAYMENTS

ISO 20022 is an international standard developed to standardise financial messages and make data exchange between banks, companies and payment infrastructures more consistent, improving the efficiency, transparency and security of information flows. Compared with previous formats, it allows more detailed and organised information to be transmitted: invoice references, complete payer and beneficiary details, reason codes, elements useful for compliance and other information that previously was often included in less specific fields.

The value of the standard lies not only in its international adoption, but also in the possibility of treating the payment as a more complete and structured information flow, overcoming the limitations of traditional formats and reducing ambiguities linked to unstructured or truncated information.

The adoption of ISO 20022 is part of an internationally promoted modernisation process aimed at making cross-border payments more efficient, transparent and harmonised. The Eurosystem’s payment infrastructures have also embarked on a path of evolution towards ISO 20022, to standardise messaging in payment systems. On the cross-border front, SWIFT completed the transition set out in the sector roadmap with the effective adoption of MX standards in November 2025, opening the phase in which data quality becomes decisive in achieving operational benefits.

A useful indicator for understanding the scale of the change: during the weekend of the final transition in November 2025, it was reported that 97% of international transactions were exchanged between banks in ISO 20022 format.

 

WHAT REALLY CHANGES FOR COMPANIES
 

For companies, the transition to ISO 20022 can generate tangible benefits in the day-to-day management of financial operations: richer and more structured data flows improve efficiency, readability and integration into corporate processes.

The most significant advantages relate in particular to five areas.

• Faster operations and fewer errors
  The standardisation of information fields reduces ambiguity and the risk of errors, payment rejections or delays. The use of structured and uniform data also encourages greater process automation, making it possible to manage higher volumes of transactions with less manual intervention and improving overall efficiency.
• Greater transparency and traceability
  ISO 20022 makes it possible to associate more complete information and unique identifiers with each payment, improving visibility of the transaction throughout its journey. This aspect is particularly relevant in international payments, where the availability of richer and more structured data enables more accurate monitoring of transaction status and strengthens control over flows.
• Simplified reconciliation and financial management
  The possibility of transmitting a broader range of information relating to invoices, payment reasons and references makes the work of administrative and treasury departments easier. The data contained in the messages can in fact be used to automate matching between payment and invoice, enrich reporting and significantly reduce reconciliation times, exceptions and manual activities.
• Greater compliance and stronger operational security
  XML formats facilitate the management of the information required for controls and reduce omissions or discrepancies that may cause slowdowns.
• Greater integration and openness to innovation
  A common standard reduces conversions between different formats and makes integration between corporate systems (ERP/treasury) and banking channels easier, creating stronger foundations for the evolution of services.

In summary, the value for companies does not end with the technical standardisation of messages. The most important change concerns the possibility of having better data, smoother processes and more efficient, transparent and integrated financial management.

ISO 20022: PRIORITIES FOR COMPANIES AFTER THE MIGRATION

If 2025 was the year in which the technical transition in the SWIFT world was completed, the next phase is that of fully leveraging the new standard within corporate processes. This is where the change begins to have tangible effects on business processes as well.

It becomes crucial for companies to populate the information fields correctly and monitor data quality along the entire payment chain, moving away from practices inherited from the past that can lead to exceptions, slowdowns or requests for clarification in international transactions.

In the new scenario, responsibility for the quality of information is no longer solely infrastructural, but directly involves companies. The way in which data is managed in ERP and treasury systems, entered into payment instructions and kept up to date in customer and supplier master data has a direct impact on day-to-day operational efficiency.

This ushers in a consolidation phase: for companies, it is time to check the consistency of internal processes with the new data entry and control procedures, strengthen coordination between the finance, administration and IT departments, and prepare in a structured way for the further developments envisaged in the ISO 20022 adoption process.
 

THE NEXT DEVELOPMENTS: NOT JUST STRUCTURED ADDRESSES

In addition to the regulation of data, the evolutionary path of ISO 20022 includes further steps that will also directly affect companies, with timescales that have recently been updated compared with what was initially planned. 

An significant milestone is marked by the Standards Release 2026.  SWIFT has in fact announced the postponement of the changes relating to payments that were initially scheduled for November 2026, including those linked to more rigorous management of master data and the gradual phasing out of the use of unstructured addresses in payment messages. The new timescales will be determined through discussions with banks, central banks, market infrastructures, market practice groups and companies. The other components of the release, relating to areas other than payments, will instead be introduced through a deferred and partial release in the first quarter of 2027. 

For companies, this update to the schedule does not change the direction of the process. It remains important to check the quality of master data in corporate systems and to ensure that data such as address, city, postcode and country are complete and correctly entered, so as to prepare progressively for subsequent developments in the standard.  SWIFT itself encourages operators that have already begun to transition to structured addresses to continue along the path they have started. 

The gradual convergence of companies' payment instructions towards ISO 20022 formats, such as pain.001, is also part of the broader evolutionary path of the standard, even though it is not linked to the previous deadline of November 2026.  It therefore remains important for companies to continue adapting their internal formats and processes to ensure the continuity and quality of data throughout the entire payment chain.

WHY DATA QUALITY BECOMES A PRIORITY

The most significant aspect of the new scenario is that ISO 20022 shifts the value of payments increasingly towards the quality and structure of data.

In the past, many companies tended to consider payment merely as the final step in a commercial transaction. Today, however, the way in which a payment is created and accompanied by correct and complete information has a direct impact on operational efficiency, execution times, controls and reconciliation processes.

For this reason, companies operating internationally can already work on a number of priority areas:

• updating customer and supplier master data;
• checking the quality of data in ERP and treasury systems;
• checking the information fields used in payment flows;
• adapting internal processes to the new compilation and control logic;
• closer coordination between finance, administration, IT and the bank.

Those who address these aspects in good time can reduce the risk of operational friction and more rapidly unlock the benefits of the new standard, preparing more robustly for the developments expected in the coming years, in line with the timescales that will be progressively defined.

Being able to rely on messages that are richer in data, more orderly and more easily readable by systems means improving the management of day-to-day operations and reducing the burden of manual activities, repetitive checks and administrative exceptions.

This allows treasury and administrative departments to spend less time correcting flows and devote more attention to oversight, analysis and planning activities. At the same time, the higher quality of information helps make dialogue between the company, bank and commercial counterparties more efficient, with benefits reflected in the continuity and reliability of processes.

The competitive value of ISO 20022 emerges precisely in this ability to transform a system obligation into an opportunity for organisational evolution. In an increasingly interconnected payments ecosystem, payment services only function if all participants are able to cooperate according to common rules and standards. ISO 20022 represents precisely this shared language, which makes greater overall system efficiency possible and creates the foundations for new value-added services.

INTESA SANPAOLO’ S SUPPORT FOR COMPANIES

In a context of progressive evolution in payment standards, Intesa Sanpaolo supports companies in adopting ISO 20022 with a gradual approach focused on operational continuity and process simplification, supporting the main flows in XML formats and assisting companies and counterparties in the phase following technical migration.

The aim is to maximise the benefits of the new standard: higher data quality, greater automation, more transparency and more efficient financial management.

The transition to ISO 20022 marks an important step in the evolution of international payments and opens a new phase, in which information quality becomes an integral part of operational efficiency. For companies, this means addressing a change that goes beyond technical compliance and involves processes, organisation and the ability to oversee financial flows.

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