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 15

Version 2026.26 (v3.0)

Removed supplyDate and mapped taxPointDate to the transaction supply timestamp.
Added currency conversion support for tax calculations across different currencies.
Added taxpayer registration synchronization to support location-evidence tax calculations.
Fixed transaction-key collisions for transactions containing multibyte characters.
Reduced redundant logging for invoice requests with multiple line items.
Added per-region invoice numbering to prevent duplicate invoice numbers.
Improved tax number validation performance and stability.
Fixed incorrect tax number validation when validationResult.isValid is false.
Fixed invalid requester tax number handling for the German evatr.bff-online.de provider.
Enhanced India GSTIN validation addresses with ZIP Code and State Jurisdiction Code when available.
Added HTTP 429 handling for tax number lookup throttling.
Improved caching of India, Bahrain, and UAE tax number validation results.
Added region-local tax number validation caching for multi-region deployments.
Updated tax number validation routing to improve regional failover.
Improved address validation errors when a tax jurisdiction cannot be resolved.
Improved dashboard error-handling test coverage.
Added dashboard support for sandbox and production configurations in a single production environment.
Removed the unique merchant email requirement to support multiple configurations per environment.
Fixed an incorrect separator in audit report email notifications.
Fixed audit report redirects caused by expired marketplace sessions.
Updated the dashboard to retrieve transactions and audit logs from the processing region.
Improved Marketplaces API support for newly provisioned regional databases.
Added failover routing for redirected US traffic through the EU Marketplaces API.
Added transaction replication between primary and backup regions.
Added region-local, read-only seller database support.
Added region-local US transaction storage for Marketplaces API.

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.

September 28

Version: 2026.24

Resolved an issue interrupting foreign exchange rate ingestion after the Central Bank of the UAE changed its API routing and request requirements. Updated request handling to restore exchange rate retrieval.
Fixed an issue preventing exchange rates from the Central Bank of Oman from updating.
Fixed an issue preventing exchange rates from the Bank of Taiwan from synchronizing.
Fixed an issue causing New Zealand foreign exchange rate retrieval to time out.

September 3

Version: 2026.23 (v3.0)

Added support for capturing transaction and refund posting dates for reporting and credit notes.
Added support for refund line matching via the line item identifier when present.
Improved error logging by removing platform and merchant setup payloads from stored logs.
Improved error handling and responses to schema errors.
Improved timeouts for calls to reduce failures on long-running requests.
Fixed an issue where internal validation fields and keys could appear in validation result responses.
Fixed an issue where the Tax Regions user interface showed countries with non-zero totals as "No sales."
Improved invoice place consistency so outputs match across business entity and seller address sources.
Ensured invoice and credit note default templates are consistent.
Improved traceability by including the transaction identifier in pre-LILA quotation requests.

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.

August 11

Version: 2026.21

Fixed an issue where Korean tax number validation incorrectly returned "invalid VAT ID" errors after the Korean National Tax Service (Hometax) made a change to its lookup endpoint.
Fixed an issue that could cause fu.gov.si tax-ID data to become stale when the upstream CSV file contained malformed quoting.

August 10

Version: 2026.20

Fixed an issue where Korean tax number validation incorrectly returned "invalid VAT ID" errors after the Korean National Tax Service (Hometax) made a change to its lookup endpoint.

July 30

Version: 2026.19

Fixed an issue where empty infiles triggered unnecessary reconciliation report alerts. This fix reduces false alerts and the associated effort required to investigate them.

July 23

Version: 2026.18 (v3.0)

Updated German local tax number validation to use the new source provided through the German Federal Central Tax Office API, replacing the previous source.
Updated validation responses to include the country code used during validation.
Updated validation to use the production HMRC endpoint for United Kingdom tax number validation.
Improved invoice processing by automatically retrying failed invoice calls as quotation calls in some cases.
Updated Standalone Vertex Invoice IQ to use customer-provided sales, taxes, and total amounts as authoritative values when supplied in the ingestion payload.
Updated foreign exchange rate pipelines to retrieve exchange rates directly from the fx-rates component, removing the indirect dependency on the Vertex VAT Compliance Service.
Fixed an issue where Thailand tax number validation failed when the service was unavailable.
Fixed security vulnerabilities in the service.
Removed the legacy reporting settings and related test data from Vertex O Series Online Commerce.

July 14

Version: 2026.17 (v1.0, v2.0)

Added tax calculation and limited reporting for Sri Lanka to support customer compliance during the transition to Vertex O Series Online Commerce.
Added a retry option for failed webhooks, allowing operations teams to resend webhooks.
Improved report scheduling to support exact report times and reschedule weekend reports.

July 2

Version: 2026.16

Added automatic fallback for VIES tax number validation to an alternative endpoint when the primary service is overloaded, ensuring uninterrupted validation.

June 4

Version: 2026.15 (v3.0)

Released Vertex O Series Online Commerce.
Added Customer Location Determination, Liability Determination, and Reporting Capabilities.
Added Integrated Vertex Invoice IQ and Integrated Vertex Validator.

June 1

Version: 2026.13 (v1.0, v2.0)

Added support for multiple filing types for the same country or region in the VAT Compliance Service.
Added advanced payment routing in VAT Compliance Service to direct payments to the correct bank account and payee based on the filing type, taxpayer, and country or region.
Improved file tracking to include all files sent, received, or uploaded by users, including tax reports.
Improved message tracking to include messages created by users in addition to received messages.
Updated the VAT Compliance Service tax filing period filter to remain visible and accessible.
Updated validator cache expiry to a maximum of 30 days to support compliance requirements.
Fixed an issue causing transactions created through PayPal checkout in sandbox to remain in an unconfirmed status instead of being automatically confirmed.
Fixed Laos tax number normalization to preserve the last three digits during validation.
Fixed declaration processing for countries with subdivisions, such as Canada.

May 18

Version: 2026.14 (v3.0)

Restored the Saudi Arabia foreign exchange rates integration after changes to the Saudi Central Bank (SAMA) website prevented new rates from being fetched.
Fixed an issue where validation could enter an indefinite retry loop when processing messages containing external service warnings. Validation errors are now correctly handled and routed.
Fixed an issue with India Goods and Services Tax Identification Number (GSTIN) validation service failures by migrating to the india-ey-gstin provider and removing the CAPTCHA-solving dependency.

May 6 (hotfix)

Version: 2026.10 (v3.0)

Added transactionId, originalTransactionId, and lineItemNumber fields to the audit report.
Added support for user-provided invoice numbers in Vertex Invoice IQ.
Added the product delivery interface to the direct_seller_owner role.
Fixed an issue that prevented access to the product delivery interface in Vertex Invoice IQ without Vertex for e-Commerce or Vertex for Marketplaces.
Fixed an issue that incorrectly routed Vertex Validator merchants with the new segment type from the production environment to the sandbox environment.

April 29

Version: 2026.9 and 2026.11 (v1.0, v2.0)

Fixed an issue that prevented credit notes from being generated correctly in Vertex Invoice IQ.
Improved security by addressing an exposed administrative interface.
Updated validator cache expiry to a maximum of 30 days to support compliance requirements.
Updated India tax rounding logic to improve tax calculation.
Updated ISO country codes for territories in India to align with official ISO standards.

March 30

Version: 2026.8 (v3.0)

Updated logging to mask passwords in the provider URLs, replacing them with one-way hashed values.
Updated invoice numbering in India to restart the count on April 1 every year.

March 19

Version: 2026.6 (v1.0, v2.0)

Updated Swiss business-to-business (B2B) validation to use the official Swiss public web service.
Updated country and region determination logic in Vertex Validator.
Fixed an issue with incorrect tax amount rounding calculations across multiple countries and regions.
Fixed an issue where search filters stopped returning results after a transaction key was removed.
Fixed an issue where external unique IDs exceeding the 50-character limit caused request errors.
Fixed an issue where webhook retries could incorrectly lock transactions after a timeout.

March 9

Version: 2026.7 (v3.0)

Added support to send product commodity codes and types to Vertex O Series for HSN-based tax calculation in Vertex for Marketplaces.
Added support for a new India Goods and Services Tax Identification Number (GSTIN) validation service with real-time validation, status, business name, and address data across all endpoints.
Fixed an issue where European Union (EU) business-to-business (B2B) transactions were not tax-exempt when the buyer's tax number was provided in the buyer-tax-numbers field.
Fixed an issue where schedule validator reports failed when the Valid (syntax) option was selected in the Validation Statuses field.
Added support for the BQ country code for the Caribbean Netherlands by mapping it to the Vertex country code VX4 to reduce transaction errors.
Updated the Italian domestic CAPTCHA provider to use syntax-check validation by default, while allowing European Union (EU)-level settings to override this behavior.
Updated the user interface to record which user changes a merchant setting.

February 16 (hotfix)

Version: 2026.5 (v3.0)

Updated United Kingdom tax number validation to use HMRC's new API across all validation endpoints.

February 12

Version: 2026.1 (v1.0, v2.0)

Improved Vertex O Series connections by separating partition configurations for environments.
Improved reporting by adding support for line-level custom fields mapped to flexible fields.
Added the last day of the month to India business-to-business (B2B) reports.
Fixed an issue that displayed sandbox notifications in production environments.
Fixed an issue that caused a "request was aborted" error during transaction searches.
Fixed a rounding issue that caused some United States tax calculations to differ by 0.01.

January 29 (hotfix)

Version: 2026.4 (v1.0, v2.0)

Fixed an issue that prevented validation results from being recorded in the database cache.

January 28

Version: 2026.2 (v3.0)

Added support for blocking specific currencies.
Added tax number validation providers for Estonia, Ireland, Poland, Slovenia, and Slovakia.
Added an hourly file-based pipeline to validate and update tax number records from multiple providers.
Added support for blocking specific currencies.
Blocked Bulgarian Lev (BGN) transactions while preserving historical BGN activity.
Improved invoice and refund tax calculations by fixing rounding and currency conversion discrepancies.
Improved Oman tax number validation for consistent results in Standalone Vertex Validator.
Improved merchant settings to ensure they apply consistently.
Improved error logs to display the correct queue name for easier troubleshooting.
Fixed 500 errors in Singapore LILA business-to-consumer (B2C) rules by applying a default threshold method when reference merchant settings are missing.
Fixed an issue where successful tax number validations were not visible to sellers.
Fixed an issue where saving invoice settings converted invoice logo URLs to lowercase.
Increased invoice delivery webhook retries to seven.
Updated business-to-business (B2B) report filenames to label reports by service.
Removed support for the legacy com.taxamo.apparatus.components.http-async-client. Use taxamo.http-client.interface for improved HTTP/2.0 support.

January 21

Version: 2026.3 (v1.0, v2.0)

Added tax number region determination in Vertex Validator to improve validation.
Added support for automatically converting Bulgarian Lev (BGN) to Euro (EUR).
Fixed an issue that caused a NumberFormatException when processing amounts greater than 999.