SWIFT has confirmed a hard deadline of November 14, 2026, after which all cross-border payment messages containing unstructured postal addresses will be rejected under the CBPR+ and ISO 20022 framework, with no contingency measures, requiring full migration to structured or hybrid address formats. This deadline remains active despite ongoing consultations and community requests for deferral, as SWIFT has not announced any revised date for the structured address mandate. [1][2][3][4][5][6][7]
The migration impacts specific message types, particularly MT101, which must be upgraded to field 59 option F to comply with the new structured address requirements. Corporates using MT101 for interbank relay messages must complete this transition by the deadline, as the MT101 interbank relay message is scheduled for decommissioning on November 14, 2026. [8][9][10]
Despite the firm deadline, SWIFT is consulting with banks, central banks, and market practice groups to set new implementation dates for deferred migration requirements, with new dates expected before year-end 2026. This follows a formal community request on August 27, 2026, which led to a controlled extension of the SR 2026 structured address mandate, though no new date has been announced. The broader SR2026 MT-to-MX migration requirements were also deferred at that time, though the ISO 20022 migration overall continues with only the structured-address mandate deadline pushed. [11][12][13][14][15][16][17]
As of April 2026, significant portions of cross-border payments remained non-compliant, with 61.2% including unstructured Debtor postal addresses and 62.9% including unstructured Creditor information. An estimated 62% of cross-border SWIFT payments were non-compliant as of the last available count, underscoring the urgency for institutions to complete remapping and testing immediately. Non-compliant payments face gateway-level rejection with no extension mechanism announced. [18][19][20][21][22]
Institutions must monitor SWIFT for any revised implementation date expected by year-end 2026, as the current November 14, 2026 deadline remains in effect unless formally updated. The migration is critical for maintaining access to cross-border payment flows under the CBPR+ framework. [23][24]