BIR Electronic Invoicing and Electronic Sales Reporting System (ESRS)
Prepare for the
December 31,2026
Compliance Deadline
Integrated Electronic Invoicing and ESRS solutions that integrate with
NAYSA Financials and existing CAS applications.
RR No. 26-2025 extends the compliance deadline to December 31, 2026,
giving covered businesses additional time to prepare for mandatory electronic invoicing.
START PREPARING TODAY
Allow sufficient time for planning, integration, testing, and user readiness before the December 31, 2026 compliance deadline.
Who is Covered?
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Large Taxpayers (LTS)
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E-Commerce Businesses
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EOPT-Covered Taxpayers
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Existing CAS/CBA Users
Your Deployment Options
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Implement NAYSA ERP
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Integrate with Existing CAS Applications
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Open API Integration
Plan your Implementation
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CAS Registration Update
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System Integration
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User Training and Testing
More Than BIR Compliance
Improve invoice delivery, customer acknowledgement, and invoice tracking.
NAYSA Electronic Invoicing helps organizations comply with BIR requirements while streamlining
the customer invoicing process—from electronic delivery and customer acknowledgement to complete invoice status tracking.
Electronic Invoice Delivery
Select and email invoices to customers individually or in batches.
Electronic Invoice Acknowledgement
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​Allow customers to electronically Accept or Reject invoices through the email action buttons.
Invoice Delivery and Acknowledgement Tracking
Track the complete invoice lifecycle with real-time status visibility.
Authorized users can also record customer confirmations received through other communication channels, maintaining a complete acknowledgement history.