For Software as a Service (SaaS) solutions, Vertex Release Notes communicate changes in behavior, enhancements, and features. In each release, Vertex also improves performance and quality and remediates security vulnerabilities. Release Notes are available on the Vertex Developer Network for all customers regardless of license. For specific information about a specific case, visit the Support section of Vertex Community or contact Customer Support.

Here are the enhancements and resolutions we released for the service in 2026.

October 19

Version 2026.27 (v1.0, v2.0)

Enabled the VAT Compliance Service to export aggregated historical sales data during migration to support economic nexus threshold calculations using pre- and post-migration data.
Enabled the migration team to configure and promote Vertex for Marketplaces settings from sandbox to production through the admin panel, with validation and audit tracking.

October 1

Version: 2026.25 (v1.0, v2.0)

Enabled Vertex Invoice IQ to use the latest invoice rendering service, with configurable rendering engines at the template, merchant, or solution level. You can configure sandbox and production environments.
Updated the VAT Compliance Service dashboard to display the actual filing status instead of incorrectly showing "Finished" when no descriptive status was available.
Improved webhook URL validation to prevent invalid target URLs from disrupting webhook delivery.
Resolved an issue where Hebrew text displayed incorrectly when using the chromium-2026 engine.
Resolved an issue where invalid ZIP code lengths caused server errors during tax calculation.
Updated cookie handling to accept AWS Application Load Balancer cookies, reducing warnings in logs.
Updated invoice rendering to respect configured custom fields.
Corrected report generation and retry handling for queued reports with missing report IDs.
Fixed several security vulnerabilities and vulnerable dependencies.

August 26

Version: 2026.22 (v1.0, v2.0)

Added multi-entity merchant mapping, allowing a single merchant to map to multiple entities without requiring multiple logins.
Added support for interim payment references during transaction creation. Payment records now track the payment status and update with the final payment reference when available.
Added greater flexibility to filing status workflows.
Updated modern invoicing to correctly pass formatted invoice and credit note numbers.
Updated tax calculation requests to include a unique document identifier.
Improved dashboard and user interface handling of dead-letter queue entries.
Fixed a user interface issue where filtering filings returned incorrect results.
Fixed incorrect settlement quarter dates in email notifications for non-standard quarterly cadences.
Improved error handling and event processing in the VAT Compliance Service.
Fixed an issue where general persistence failures were incorrectly returned as client errors instead of server-side errors.
Fixed issues with missing issue-id values that could cause alerts and dead-letter queue entries.
Fixed excessive error logging when requested invoice files were not found.
Fixed transaction processing failures when street addresses exceeded 100 characters.
Fixed audit logging failures for large configuration payloads.
Fixed an issue where the VAT Compliance Service did not cache live-mode company and registration data on startup.
Fixed several security vulnerabilities.

June 1

Version: 2026.13

Improved the Vertex VAT Compliance Service to support multiple filing types per region. The service now supports foreign-registered sellers for digital goods, domestic companies registered within the jurisdiction, and sellers of physical goods.
Improved the tax settlement detailed report query processing to reduce complexity and improve reliability when generating reports.

April 29

Version: 2026.9 and 2026.11

Strengthened security by improving access controls for administrative functionality and blocking unauthenticated access to sensitive admin endpoints. No customer action is required.
Added a new option for EVAT to connect to TradeVan without using the proxy layer, improving reliability and reducing latency.
Updated Vertex Validator to enforce a maximum cache expiry of 30 days to improve safety and ensure validations use the latest validation results. Review your configuration if you previously used cache periods longer than 30 days.

March 19

Version: 2026.6

Added support for Vertex VAT Compliance Service in Vertex Cloud to create a unified and seamless user experience for cloud customers.
Updated the Swiss business-to-business (B2B) VAT validation to use the official Swiss UID public web service.
Fixed an issue in transaction exports that could exclude transactions near the end of the selected date range.
Fixed an issue with external unique IDs exceeding the 50-character limit, causing request errors.
Fixed an issue where webhook retries could incorrectly lock transactions after a timeout.
Updated the API-based scheduled reporting to help ensure scheduled settlement reports are available via API and clearly identifiable in the user interface. This update improves automation and reduces confusion between user-generated and scheduled reports.
Updated the VAT ID region determination logic in Vertex Validator to improve validation accuracy.
Fixed an issue with incorrect rounding calculations for tax amounts across multiple regions.

February 12

Version: 2026.1

Improved how the service connects to Vertex O Series by separating the partition configuration for test and live environments. Previously, both environments shared the same global partition configuration.
Improved reporting support by including line-level custom fields mapped to flexible fields in Vertex O Series, extending the existing capabilities that supported only transaction-level custom fields.
Fixed an issue that caused test mode notifications to appear in live mode.
Fixed an issue that caused a "request was aborted" error when performing a transaction search.
Fixed a rounding issue that caused some United States (US) tax calculations to differ by 0.01.
The service now includes the last day of the month in India business-to-business (B2B) reports.

January 29 (hotfix)

Version: 2026.4

Fixed an issue that prevented validation results from recording to the database cache.

January 21

Version: 2026.3

Added VAT ID region determination in Vertex Validator to improve validation accuracy.
Added support to automatically convert Bulgarian Lev (BGN) to Euro (EUR).
Fixed an issue that caused a NumberFormatException when processing a transaction amount greater than 999.