Log in to access all resources.
Welcome to the Corporate Actions Processing section of this Learning Center. The Corporate Actions Processing section contains learning resources about the Depository Trust Company's (DTC) wide array of services for processing corporate action events for approximately 1.3 million active DTC-eligible securities. These services include announcing details of upcoming events and providing participants with information about their entitlements, accepting and acting on their instructions, and collecting, allocating, and reporting payments across various corporate action event types, including distributions, redemptions, and reorganizations. Use the Corporate Actions Processing menu at left to learn more about:
CA Web
- Learning content specific to the Corporate Actions browser-based user interface (CA Web), from announcements through the entire lifecycle, and links to learning resources such as user guides, help files, eLearning, FAQs and other supporting documentation.
AnnounceDirect
- Learning content specific to AnnounceDirect allowing agents, issuers, and third parties to provide Corporate Action Event Announcement information directly to DTCC’s announcement and processing systems.
ClaimConnectTM
- User guides, eLearning and other resources supporting the ClaimConnect™ service, a solution to the industry's challenges in handling claims that may not be tracked by DTC (and eliminates the need for dedicated departments and e-mail reconciliation).
Distributions
- DTC’s Corporate Actions Processing Service for Distributions provides full lifecycle processing, including announcing details of upcoming events, providing participants with information about their entitlements, accepting and acting on their instructions, and collecting, allocating and reporting payments.
Dividend and Income Processing
- DTC's Dividend services include announcing, collecting, allocating and reporting dividend, interest and certain principal payments on behalf of its participants with securities in DTC custody. Includes resources related to CTAS, Interim Accounting and PUT Bonds.
ISO 20022 Messaging
- Resources related to ISO 20022, an international messaging standard that simplifies global business communication by creating a common language for financial information.
Redemptions
- DTC’s Corporate Actions Processing Service for Redemptions provides full lifecycle processing, including announcing details of upcoming events, providing participants with information about their entitlements, and collecting, allocating, and reporting payments.
Reorg
- DTC’s Corporate Actions Processing Service for Reorganizations provides full lifecycle processing, including sourcing and announcing the details of upcoming events, accepting and acting on instructions, and collecting, allocating, and reporting on the resulting entitlements.
Filter resources:
Message Inventory and MX/ISO 20022 Equivalencies Quick Tip
This document provides an inventory of ISO 20022 messages, including equivalencies between MX identifiers, ISO 20022 message information, and equivalent DTCC processes.
Corporate Action Elections Data Dictionary SR 2025
These documents outline mapping for tags associated with ISO 20022 messages for Distributions Instructions to data elements associated with DTC's EDS legacy process, as well as Reorganization Instructions mapping.
(Updated October 15, 2025)
Corporate Action Announcements Data Dictionary SR 2026
These documents list the ISO 20022 event types, as well as the ISO 20022 published data fields and mapping back to DTC function codes.
(Updated July 31, 2026)
Corporate Action Entitlements and Allocations Data Dictionary SR 2026
These documents list the ISO 20022 event types, as well as the ISO 20022 published data fields and mapping back to DTC function codes.
(Updated July 31, 2026)
SR 2025 Announcements Message Specifications
DTCC provides messaging specifications for the standard ISO 20022 message and when applicable, its proprietary Extension component. The specification zip files contain the following folders, when applicable:
Message Usage Guidelines in Excel format.These documents present the logical layout of the message XML schema. There are separate documents for each XML schema -- one for ISO ‘core’ standard message, and one for supplementary data (extension) that embeds in the standard message. The document shows the elements that will be used in the message; elements that will not be used are marked as “removed”. The document also contains DTCC market practice usage for each element e.g. DTCC definitions, annotations, rules, as well as DTCC synonyms that are the DTCC names of the elements used in browser and Data Dictionary.
Message Usage Guidelines in .pdf format. Similar to the Excel document, the PDF version provides an alternative format showing the message structure, message building blocks, message components, message data types and restrictions summarization.
DTCC extension schemas.Plain XML schema for DTCC extensions.
ISO 20022 unrestricted schemas.
SR 2025 Entitlements and Allocations Message Specifications
DTCC provides messaging specifications for the standard ISO 20022 message and when applicable, its proprietary Extension component. The specification zip files contain the following folders, when applicable:
Message Usage Guidelines in Excel format.These documents present the logical layout of the message XML schema. There are separate documents for each XML schema -- one for ISO ‘core’ standard message, and one for supplementary data (extension) that embeds in the standard message. The document shows the elements that will be used in the message; elements that will not be used are marked as “removed”. The document also contains DTCC market practice usage for each element e.g. DTCC definitions, annotations, rules, as well as DTCC synonyms that are the DTCC names of the elements used in browser and Data Dictionary.
Message Usage Guidelines in .pdf format. Similar to the Excel document, the PDF version provides an alternative format showing the message structure, message building blocks, message components, message data types and restrictions summarization.
DTCC extension schemas.Plain XML schema for DTCC extensions.
ISO 20022 unrestricted schemas.
SR 2025 Elective Dividend Instructions Message Specifications
DTCC provides messaging specifications for the standard ISO 20022 message and when applicable, its proprietary Extension component. The specification zip files contain the following folders, when applicable:
Message Usage Guidelines in Excel format.These documents present the logical layout of the message XML schema. There are separate documents for each XML schema -- one for ISO ‘core’ standard message, and one for supplementary data (extension) that embeds in the standard message. The document shows the elements that will be used in the message; elements that will not be used are marked as “removed”. The document also contains DTCC market practice usage for each element e.g. DTCC definitions, annotations, rules, as well as DTCC synonyms that are the DTCC names of the elements used in browser and Data Dictionary.
Message Usage Guidelines in .pdf format. Similar to the Excel document, the PDF version provides an alternative format showing the message structure, message building blocks, message components, message data types and restrictions summarization.
DTCC extension schemas.Plain XML schema for DTCC extensions.
ISO 20022 unrestricted schemas.
SR 2025 Voluntary Reorganization Instructions Message Specifications
DTCC provides messaging specifications for the standard ISO 20022 message and when applicable, its proprietary Extension component. The specification zip files contain the following folders, when applicable:
Message Usage Guidelines in Excel format.These documents present the logical layout of the message XML schema. There are separate documents for each XML schema -- one for ISO ‘core’ standard message, and one for supplementary data (extension) that embeds in the standard message. The document shows the elements that will be used in the message; elements that will not be used are marked as “removed”. The document also contains DTCC market practice usage for each element e.g. DTCC definitions, annotations, rules, as well as DTCC synonyms that are the DTCC names of the elements used in browser and Data Dictionary.
Message Usage Guidelines in .pdf format. Similar to the Excel document, the PDF version provides an alternative format showing the message structure, message building blocks, message components, message data types and restrictions summarization.
DTCC extension schemas.Plain XML schema for DTCC extensions.
ISO 20022 unrestricted schemas.
SR 2026 Announcements Message Specifications
DTCC provides messaging specifications for the standard ISO 20022 message and when applicable, its proprietary Extension component. The specification zip files contain the following folders, when applicable:
Message Usage Guidelines in Excel format.These documents present the logical layout of the message XML schema. There are separate documents for each XML schema -- one for ISO ‘core’ standard message, and one for supplementary data (extension) that embeds in the standard message. The document shows the elements that will be used in the message; elements that will not be used are marked as “removed”. The document also contains DTCC market practice usage for each element e.g. DTCC definitions, annotations, rules, as well as DTCC synonyms that are the DTCC names of the elements used in browser and Data Dictionary.
Message Usage Guidelines in .pdf format. Similar to the Excel document, the PDF version provides an alternative format showing the message structure, message building blocks, message components, message data types and restrictions summarization.
DTCC extension schemas.Plain XML schema for DTCC extensions.
ISO 20022 unrestricted schemas.
SR 2026 Entitlements and Allocations Message Specifications
DTCC provides messaging specifications for the standard ISO 20022 message and when applicable, its proprietary Extension component. The specification zip files contain the following folders, when applicable:
Message Usage Guidelines in Excel format.These documents present the logical layout of the message XML schema. There are separate documents for each XML schema -- one for ISO ‘core’ standard message, and one for supplementary data (extension) that embeds in the standard message. The document shows the elements that will be used in the message; elements that will not be used are marked as “removed”. The document also contains DTCC market practice usage for each element e.g. DTCC definitions, annotations, rules, as well as DTCC synonyms that are the DTCC names of the elements used in browser and Data Dictionary.
Message Usage Guidelines in .pdf format. Similar to the Excel document, the PDF version provides an alternative format showing the message structure, message building blocks, message components, message data types and restrictions summarization.
DTCC extension schemas.Plain XML schema for DTCC extensions.
ISO 20022 unrestricted schemas.
SR 2026 Elective Dividend Instructions Message Specifications
DTCC provides messaging specifications for the standard ISO 20022 message and when applicable, its proprietary Extension component.
The specification zip files contain the following folders, when applicable:
Message Usage Guidelines in Excel format.These documents present the logical layout of the message XML schema. There are separate documents for each XML schema -- one for ISO ‘core’ standard message, and one for supplementary data (extension) that embeds in the standard message. The document shows the elements that will be used in the message; elements that will not be used are marked as “removed”. The document also contains DTCC market practice usage for each element e.g. DTCC definitions, annotations, rules, as well as DTCC synonyms that are the DTCC names of the elements used in browser and Data Dictionary.
Message Usage Guidelines in .pdf format. Similar to the Excel document, the PDF version provides an alternative format showing the message structure, message building blocks, message components, message data types and restrictions summarization.
DTCC extension schemas.Plain XML schema for DTCC extensions.
ISO 20022 unrestricted schemas.
SR 2026 Voluntary Reorganization Instructions Message Specifications
DTCC provides messaging specifications for the standard ISO 20022 message and when applicable, its proprietary Extension component. The specification zip files contain the following folders, when applicable:
Message Usage Guidelines in Excel format.These documents present the logical layout of the message XML schema. There are separate documents for each XML schema -- one for ISO ‘core’ standard message, and one for supplementary data (extension) that embeds in the standard message. The document shows the elements that will be used in the message; elements that will not be used are marked as “removed”. The document also contains DTCC market practice usage for each element e.g. DTCC definitions, annotations, rules, as well as DTCC synonyms that are the DTCC names of the elements used in browser and Data Dictionary.
Message Usage Guidelines in .pdf format. Similar to the Excel document, the PDF version provides an alternative format showing the message structure, message building blocks, message components, message data types and restrictions summarization.
DTCC extension schemas.Plain XML schema for DTCC extensions.
ISO 20022 unrestricted schemas.
Corporate Action Announcements Data Dictionary SR2025
These documents list the ISO 20022 event types, as well as the ISO 20022 published data fields and mapping back to DTC function codes.
(Updated July 21, 2025)
Corporate Action Entitlements and Allocations Data Dictionary SR2025
These documents list the ISO 20022 event types, as well as the ISO 20022 published data fields and mapping back to DTC function codes.
(Updated May 30, 2025)
Corporate Action Elections Data Dictionary SR 2026
These documents outline mapping for tags associated with ISO 20022 messages for Distributions Instructions to data elements associated with DTC's EDS legacy process, as well as Reorganization Instructions mapping.
(July 31, 2026)
ISO 20022 Messaging for Reorganizations Instructions
Presents general ISO 20022 messaging information as well as information about specific messages, timing, scenarios by event type, message triggers, and event type correspondences.
ISO 20022 Messaging for Distributions Entitlements and Allocations
Guide for using ISO 20022 entitlement and allocation messaging for corporate action distribution events. Complete description of message types, scenarios, and options. Includes:
Message types
Stock loan tracking, fail tracking, and REPO tracking
Message subscriptions and message timing
Holiday processing
Message flows
Reason codes
CANO-E Messages
CAPA messages
CAPC messages
CACO messages
CARE messages
CAPS messages
ISO 20022 Messaging for Redemptions Entitlements and Allocations
Guide for using ISO 20022 entitlement and allocation messaging for corporate action redemption events. Complete description of message types, many scenarios, and options. Includes:
Message types and MX identifiers
Supplementary data and message extensions
Stock loan tracking, fail tracking, and REPO tracking
Message subscriptions and message timing
Holiday processing
System mapping
Message flows
event templates
CANO messages
CANO-E messages
CAPA messages
CAPC messages
CACO messages
CARE messages
CAPS messages
ISO 20022 Messaging for Reorganizations Entitlements and Allocations
Presents general ISO 20022 messaging information as well as information about specific messages, timing, scenarios by event type, message triggers, and event type correspondences.
ISO 20022 Messaging for Distributions Instructions
Presents general ISO 20022 messaging information as well as information about specific messages, timing, scenarios by event type, message triggers, and event type correspondences.
AnnounceDirect Help
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam sit amet mauris ac purus imperdiet accumsan id sed nisi. Donec ut pulvinar arcu.
AnnounceDirect: Access Provisioning Guide
This document serves as a quick guide for Access Coordinators and Super Access Coordinators to provision access and entitlements to the AnnounceDirect (PSE) product.
DTC’S ANNOUNCEDIRECT PROPOSAL DESCRIBED HEREIN WILL BE THE SUBJECT OF A PUBLIC RULE FILING WITH THE U.S. SECURITIES AND EXCHANGE COMMISSION (“SEC”). THE PROPOSAL MAY NOT TAKE EFFECT UNTIL IT IS FILED WITH AND APPROVED BY THE SEC.
SR 2026 Meeting Proxy Message Specifications
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam sit amet mauris ac purus imperdiet accumsan id sed nisi. Donec ut pulvinar arcu.
Survivor Option PUTS User Guide for Participants
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam sit amet mauris ac purus imperdiet accumsan id sed nisi. Donec ut pulvinar arcu.