# Invoicing fuel in Mexico: automatic CFDI without portals

> How to eliminate manual fuel invoice capture: what the SAT requires on each CFDI, how per-fill automatic invoicing works and how much accounting time you recover.

**Author:** Rodrigo Vázquez — Mexican Tax Specialist (SAT, CFDI)  
**Reviewed by:** Marina Costa — Brazilian Tax & Compliance Specialist  
**Published:** 2026-07-12  
**Updated:** 2026-07-12  
**Last reviewed:** 2026-07-12  
**URL:** https://quilometragem.com/blog/invoicing-fuel-in-mexico-automatic-cfdi-without-portals

**TL;DR:** Invoicing fuel in Mexico without portals: the SAT-authorized wallet issues the CFDI automatically on every fleet fill-up.

- Each CFDI needs a correct RFC, product key and itemized VAT.
- Fuel paid in cash is non-deductible regardless of the amount.
- The wallet's authorized issuer invoices under the RMF mandate.
- A 30-unit fleet recovers 30 to 70 accounting hours per month.

## Summary

How to eliminate manual fuel invoice capture in Mexico: the SAT requires a correct RFC, product key, non-cash payment method and itemized VAT on every CFDI; a SAT-authorized electronic wallet issues the CFDI automatically on each fill-up, recovering 30-70 monthly accounting hours and pushing capture above 98%.

## Frequently asked questions

### Who issues the CFDI when I pay with an electronic wallet?

The wallet's authorized issuer, as mandated by the RMF. Invoicing stops depending on the driver or the gas station's portal.

### Can a stamped CFDI still fall in a SAT review?

Yes: a generic RFC, wrong payment method or missing VAT breakdown can void the deduction even if the stamp is technically valid.

## Sources

- [Resolución Miscelánea Fiscal — obligaciones de los emisores autorizados de monederos electrónicos de combustible](https://www.sat.gob.mx/normatividad/23669/resolucion-miscelanea-fiscal-(rmf)) — Servicio de Administración Tributaria (2026-07-08)
- [SAT — Anexo 20: estándar del CFDI 4.0 y catálogos de producto](https://www.sat.gob.mx/consultas/35025/formato-de-factura-electronica-(anexo-20)) — Servicio de Administración Tributaria (2026-07-08)
- [Ley del Impuesto sobre la Renta — Art. 27, fracción III](https://www.diputados.gob.mx/LeyesBiblio/pdf/LISR.pdf) — Cámara de Diputados (2026-07-08)