Definition
A freight invoice is the document — in Mexico, typically an income CFDI — with which the carrier charges for the service: line items, taxes, trip references, and unique tax folio (UUID).
If you approve the invoice because “the total looks close,” you are not auditing — you are waiting for SAT or margin to teach the lesson.
What it means in practice
It is the billing document for transport. In Mexico the XML and UUID are the fiscal source of truth; the PDF is a representation.
Without a link to the trip (shipment, rate, POD), accounts payable cannot know if it is paying the right amount.
Why it matters by role
| Role | What they validate | If they only see the PDF |
|---|---|---|
| Accounts payable | UUID, amounts, trip | Pays blind |
| Traffic / operations | Service vs charge | Late dispute |
| Freight procurement | Breakdown vs rate card | Silent leakage |
| Tax / accounting | Valid CFDI | SAT risk |
Minimum pre-pay checklist
| Field | Question | Note |
|---|---|---|
| UUID | Valid with SAT? | Required |
| Breakdown | Base, FSC, accessorials? | Vs rate card |
| Trip reference | Which shipment is billed? | File |
| Carta Porte / transfer | Applies and matches? | Mexico |
| POD | Delivery evidenced? | Service |
How to validate the invoice in 5 steps
Receive XML
Not PDF only
Validate UUID
Portal / receiving PAC
Match rate card
Lines and amounts
Match the trip
Milestones and POD
Pay or reject
With a reason
Expensive mistakes
1.Approving with PDF and no XML
You lose UUID and fiscal traceability.
2.Not reviewing accessorials line by line
The total “matches” and leakage passes.
3.Invoice with no trip reference
Impossible to audit or dispute.
4.Paying before POD
You fund unevidenced service.
OCL and the trip file
OCL concentrates invoice, rate, and trip evidence for pre-pay validation. It can stamp invoices and Carta Porte.
Sources and further reading
Key takeaways5 points
- Freight invoice = the digital tax invoice (CFDI) or other bill the carrier uses to charge: rate, accessorials, taxes, and trip references.
- In Mexico a PDF is not enough: you need XML + a valid unique tax folio (UUID) and a match vs rate card, Carta Porte when applicable, and proof of delivery (POD).
- Accounts payable should not release payment without a breakdown and a link to the shipment in the trip file.
- Connect CFDI UUID, freight, and freight audit.
- OCL helps validate the pre-pay match. Can stamp invoices and Carta Porte.
Do you validate the XML — or only the PDF?
Frequently asked questions
The document the carrier uses to charge for transport; in Mexico it is usually an income CFDI with a UUID.
Not in Mexico: you need the XML and a validated UUID, plus the operational match.
Rate card, trip/shipment, POD, and Carta Porte or transfer CFDI when applicable.
No: income invoices charge; transfer documents movement. They can coexist in the flow.
Accounts payable with a written rule, using the trip file — not an informal “OK.”
It builds the rate–trip–invoice match to approve or reject before payment.