CFDI Validator
Paste or upload a CFDI XML and instantly check RFC format, required CFDI 4.0 fields, version compliance, and IVA calculations.
Validation results will appear here.
CFDI Summary
What this validator checks
RFC Format
Validates issuer and recipient RFC against the SAT format (12 or 13 characters, correct structure).
CFDI 4.0 Required Fields
Checks for mandatory attributes: Version, Fecha, SubTotal, Total, Moneda, NoCertificado, Sello.
IVA Calculation
Verifies that SubTotal + IVA (16%) = Total within accepted rounding tolerance.
Date Format
Ensures the Fecha attribute follows ISO 8601 format and is not a future date.
Tax Regime & CFDI Use
Checks that RegimenFiscal and UsoCFDI values are present on Emisor and Receptor.
Note: SAT stamp validation
Full cryptographic SAT stamp verification requires the SAT web service. This tool checks structure only.
Ready to Get Your Accounting in Order?
Whether you're a business owner, foreign investor, or vacation rental operator â we're here to help.