Argentina

ARCA Update: Electronic Invoicing Changes for 2026

ARCA update on electronic invoicing in Argentina, including CAEA changes and new validations for 2026.
11
Jun

Electronic Invoicing in Argentina: ARCA Changes for wsfev1

The Customs and Revenue Control Agency (ARCA) has published versions 4.4 and 4.5 of the RG 4291 Developer Manual – FE Project for the wsfev1 electronic invoicing service, introducing regulatory and technical changes that will impact companies managing electronic invoicing processes in Argentina.

These new versions replace version 4.3, published on June 1, 2026, and include adjustments related to the Advanced Authorization Code (CAEA) as the primary contingency mechanism, as well as the mandatory use of the CondicionIVAReceptorId field.

Summary of Key Changes

The updates establish new mandatory implementation dates:

Effective August 1, 2026 (Version 4.4)

  • All CAEA points of sale will be considered contingency points of sale.
  • CAEA points of sale must be linked to an electronic invoicing address or a New Generation Fiscal Controller.
  • The CbteFchHsGen field will become mandatory.
  • New validations and error codes related to RG 5782 are introduced.

Effective September 1, 2026 (Version 4.5)

  • Reporting the recipient’s VAT status through the CondicionIVAReceptorId field will become mandatory.
  • Error codes 10245 (CAE) and 825 (CAEA) will be discontinued.
  • It will no longer be possible to issue invoices without reporting the recipient’s VAT status.

What Changes Were Introduced in Versions 4.4 and 4.5?

CAEA Redefined as a Contingency Mechanism

In compliance with RG 5782, ARCA redefines the use of CAEA as an exclusive contingency mechanism. As a result, organizations must review their point-of-sale configurations and ensure proper linkage to authorized electronic invoicing addresses.

Additionally, the following validation codes have been introduced:

  • 15016: Ensures that CAEA is used exclusively in contingency scenarios.
  • 15017: Identifies CAEA points of sale that are not linked to a valid electronic invoicing address.

Mandatory CbteFchHsGen Field

Starting with version 4.4, the CbteFchHsGen field will be mandatory for contingency processes using CAEA.

If this information is not submitted correctly, the electronic document may be rejected by ARCA services.

Recipient VAT Status Requirement

Version 4.5 introduces one of the most significant changes for electronic invoicing in Argentina: the mandatory use of the CondicionIVAReceptorId field.

This information must be included in all invoices covered by the regulation. Failure to provide it will prevent the issuance of the electronic document.

Impact on Businesses

Organizations using custom developments or ERP solutions integrated with wsfev1 should ensure that their systems support:

  • The mandatory CondicionIVAReceptorId field.
  • The inclusion of the CbteFchHsGen field.
  • Updated error and validation catalogs.
  • Proper configuration of CAEA points of sale and associated addresses.
  • The new contingency rules established by ARCA.

Early adaptation will help prevent invoice rejections and ensure the operational continuity of electronic invoicing processes in Argentina.

How to Prepare for These Changes

Companies should review their integrations and conduct testing before the implementation deadlines to ensure regulatory compliance.

For more information about the official specifications, consult the documentation published by ARCA:

At LLB Solutions, we help organizations keep their ERP solutions and tax processes aligned with regulatory changes across Latin America, ensuring operational continuity and tax compliance.

Versions 4.4 and 4.5 of the RG 4291 Developer Manual introduce important changes to electronic invoicing management in Argentina. Proper implementation of these updates will be essential to comply with ARCA’s new requirements and avoid disruptions in electronic invoicing processes.

Do You Need to Adapt Your Business Central Solution to ARCA’s New Requirements?

The changes introduced in versions 4.4 and 4.5 of the Developer Manual directly impact electronic invoicing and tax compliance processes. At LLB Solutions, we help companies keep their solutions aligned with local regulations through our fiscal localizations and specialized services for Microsoft Dynamics 365 Business Central.

Contact us to assess the impact of these updates on your operations and ensure a smooth transition before the mandatory implementation dates.

info@llbsolutions.com | Argentina Localization