Is a monthly global fuel invoice valid?

It can be stamped, but it loses per-fill traceability and weakens your audit defense. The right granularity is one CFDI per transaction tied to a vehicle.

Can I credit the IEPS included in the fuel price?

Not as VAT. IEPS is built into the price and has its own treatment; only VAT expressly itemized on the CFDI is creditable.

Fuel CFDI errors that cost your fleet its VAT credit

Rodrigo Vázquez — Mexican Tax Specialist (SAT, CFDI)

Published: 7/12/2026 • Last reviewed: 7/12/2026 • 7 min read

The seven most common CFDI 4.0 errors in fleet fuel: generic RFC, wrong payment method, incorrect product key, and how to eliminate them at the root.

Summary

Seven CFDI 4.0 errors that kill fuel deductions in Mexico: generic RFC, cash payment method, wrong product key, missing VAT breakdown, monthly global invoices, XMLs that never reach accounting, and inconsistent CFDI usage codes. The structural fix is generating the invoice at the point of payment with correct source data.