Welcome to the September 2026 LatamTax release.
This release includes new capabilities and improvements across LATAM Core, Mexico, Peru, Colombia, Chile, Ecuador and Electronic Invoicing, with a strong focus on tax compliance, automation, reporting and user experience.
Before updating
Review the sections related to the countries and LatamTax modules enabled in your NetSuite account. Some changes apply only to specific fiscal processes or electronic invoicing scenarios.
New Feature
LatamTax introduces a new centralized Withholding Tax Engine, designed to provide a common and extensible framework for calculating and processing withholding taxes across LATAM.
The currently available functionality supports Fourth Category Income Tax Withholding, Second Category Income Tax Withholding, and Non-Resident Income Tax Withholding in Peru, automatically evaluating applicable vendor payments, calculating the corresponding withholding amount, and generating the related transaction.
What this means for you
Reduces manual processing of withholding taxes.
Provides greater consistency in withholding calculations.
Establishes a common framework for future withholding scenarios in other LATAM countries.
Documentation: Learn more about the Withholding Tax Engine
Enhancement
The Advanced Numbering module now supports On-Demand processing.
Instead of relying exclusively on scheduled executions, LatamTax can process legal numbering when transactions require it. Numbering configuration is also synchronized automatically across subsidiaries.
What this means for you
Faster processing of pending document numbering.
More consistent configuration between subsidiaries.
Reduced unnecessary background processing in NetSuite.
New Feature
A new LatamTax Assistant is now available directly within NetSuite.
From the LatamTax menu, users can access:
Product documentation
User guides
Release Notes
Knowledge Base
Support resources
The goal is to provide a centralized self-service experience without requiring users to leave NetSuite.
User Experience Improvement
Fiscal and localization fields are now organized more consistently under the BIT LATAM section of NetSuite forms.
This provides a clearer and more standardized experience when working with LatamTax fields across transactions.
Compliance Update
Carta Porte functionality has been expanded to support additional transportation scenarios.
The release includes improvements related to:
Dangerous goods
Packaging information
Multiple trailers
Vehicle information
CFDI de Ingreso
CFDI de Traslado
SuiteTax compatibility
What this means for you
Companies using Carta Porte can process a broader range of transportation scenarios directly from LatamTax.
Enhancement
LatamTax now supports multiple customs pedimento numbers at transaction-line level.
Pedimento information can be managed directly from the transaction, providing greater flexibility when invoicing imported products associated with multiple customs entries.
What this means for you
If your organization manages imported goods, you can now represent multiple customs references more accurately within the CFDI.
Compliance Update
The generation of Payment Complement CFDIs has been improved to determine the recipient's fiscal information more accurately.
Updates include:
Improved selection of the recipient's registered fiscal name.
Improved determination of the postal code associated with the payment and related invoices.
What this means for you
Payment Complement information is generated more consistently with the fiscal information configured in NetSuite.
Bug Fix
CFDI generation now correctly supports invoice lines with 100% discounts or bonuses.
This applies to scenarios where the final value of an item line becomes zero after applying the discount.
What this means for you
Promotions, samples and fully discounted items can be processed without interrupting CFDI generation.
Enhancement
Several improvements were introduced to document management in Mexico.
Users can now benefit from:
Mass PDF generation from the Control Tower.
Improved support for customized PDF templates.
Improved automatic email delivery of electronic documents.
Improved PDF generation when optional fields are hidden.
Correct PDF generation for Credit Notes containing line-level discounts.
What this means for you
Managing, printing and distributing electronic documents requires fewer manual steps.
Performance & Stability
Several improvements were incorporated into the Mexico V3 framework.
These include:
Optimized transaction searches using SuiteQL.
Improvements to Complemento de Comercio Exterior.
Improved handling of special characters in Addendas.
Improved unit-of-measure determination.
Additional stability improvements in CFDI processing.
These changes improve performance and compatibility across different Mexico electronic invoicing scenarios.
Compliance Update
Several improvements were introduced for Peru electronic books.
Updated reports include:
PLE Purchase Book 8.1
PLE Purchase Book 8.2
SIRE Purchase Book 8.4
SIRE Purchase Book 8.5
SIRE Sales Book 14.4
Updates include improvements to:
Exchange-rate presentation.
Foreign-currency transactions.
Treatment of non-domiciled suppliers.
SIRE output files.
Automatic deployment of Purchase Books configuration.
What this means for you
LatamTax enables the generation of Electronic Books in accordance with the structures and formats established for compliance with PLE and SIRE filing requirements.
Documentation: Peru Electronic Books
Compliance Update
The calculation of purchase detractions in PEN was improved to manage rounding differences between line-level tax calculations and the final detraction amount.
LatamTax now automatically reconciles these differences within the transaction.
What this means for you
Detraction amounts recorded in NetSuite remain consistent with the final calculated amount, reducing manual adjustments.
Documentation: Purchase Detractions
New Capability
Electronic export documents can now include the customs tariff code configured for each item.
The information is automatically included for:
Export Invoices
Export Credit Notes
Export Debit Notes
What this means for you
Companies exporting goods can include tariff information directly in the electronic document transmitted through the Electronic Invoicing integration.
Documentation: Export Electronic Invoicing
New Feature
LatamTax now supports Credit Note Type 13 for changes related to installment amounts and due dates on credit sales.
The functionality can also reference documents that were generated outside NetSuite.
What this means for you
Users can manage adjustments to payment schedules while maintaining the original accounting transaction.
Documentation: Credit Note Type 13
New Feature
LatamTax now supports electronic invoicing scenarios involving customer advances.
Supported scenarios include:
Full application of an advance.
Partial application of an advance.
Multiple advances applied to the same final transaction.
Advance information is included automatically when the final electronic document is generated.
What this means for you
Sales involving advance payments can now be managed directly through the electronic invoicing flow.
Documentation: Customer Advances
Enhancement
Electronic Invoices and Sales Receipts transmitted through SERES now support discounts applied at line level.
The taxable base is calculated after the discount and the corresponding electronic invoicing information is generated automatically.
What this means for you
Commercial discounts can be reflected consistently between NetSuite and the electronic document.
Documentation: Line-Level discount
Compliance Update
The Information Exógena reporting engine has been enhanced to support the main DIAN reporting formats.
The release includes support and adjustments for formats including:
1001 - 1003 - 1005 - 1006 - 1007 - 1008 - 1009 - 1011 - 1012
What this means for you
Information Exógena can be generated directly from NetSuite using the updated LatamTax reporting engine.
Enhancement
The SuiteEngine reporting framework for Colombia received improvements covering:
General Ledger and Trial Balance
Journal reporting
Third-party balances
Withholding certificates
Retefuente
ReteIVA
ReteICA
The update also improves the legal and location information displayed in withholding certificates.
What this means for you
Users can generate Colombia accounting and tax reports with improved data presentation and consistency.
Bug Fix
The process used to send pending electronic sales documents in batch was corrected to properly identify subsidiary information.
What this means for you
Electronic documents pending transmission can continue to be processed automatically in batch.
Compliance Update
Several improvements were introduced to the Chile Purchase and Sales Books.
The release includes:
Exclusion of voided transactions.
Improved handling of retained VAT in applicable purchase documents.
Correct totals for exempt sales documents.
Improved consistency in monthly reporting.
What this means for you
The generated books provide more consistent information for monthly fiscal review.
New Capability
Electronic Invoicing now supports Credit Notes associated with Liquidación Factura Electrónica — Document 43.
The electronic document includes the corresponding negative amounts and reference to the original document.
What this means for you
Users can process reversals or adjustments related to Document 43 directly through the LatamTax Electronic Invoicing flow.
Documentation: Document 43
Bug Fix
The handling of issuer and receiver business-activity descriptions (Giro) was improved across Chile electronic invoicing templates.
This prevents document generation issues when the Giro contains shorter text values.
Compliance Update
Fiscal reporting in Ecuador received improvements covering:
Exclusion of voided transactions from Form 104.
VAT withholding information.
Payment-method grouping in ATS sales information.
What this means for you
Monthly tax reports generated from NetSuite provide improved consistency in the information presented for review and filing.
Bug Fix
Additional corrections were incorporated into the regional Electronic Invoicing framework for scenarios involving:
Special consumption taxes.
100% discounted items.
Tax-base calculations.
Electronic output generation.
These improvements apply to different scenarios across Peru, Chile, Ecuador and Colombia.
For configuration instructions, functional guides and additional details, visit the corresponding documentation links included in each section.
If you need assistance with your LatamTax update, contact your BringIT support team.