Linking a CFDI to its certificate
A simple way to keep expense records ready if the SAT asks.
By MandoClaro

A CFDI is Mexico’s electronic invoice. The SAT, Mexico’s tax authority, may ask to see the ones behind your per diems and work expenses, sometimes years later.
Link each invoice to its certificate
In MandoClaro, each CFDI is linked to its constancia de conservación digital, the digital preservation certificate. The invoice and its proof stay together instead of in two different folders.

Why it helps
It can help back up your expenses if the SAT audits them. It doesn’t replace the advice of your accountant, and it doesn’t promise any particular outcome.