What is a Carta Porte?

A Carta Porte is a CFDI complement that certifies the legal transport of goods by road in Mexico. It is required by SAT for any movement of goods between locations. Brinta embeds the CartaPorte 3.1 complement automatically based on document_type.

Field	Value
`invoice_type`	`transport`
`document_type`	`bill of lading road`
`e_invoice`	`true`
`currency`	`MXN`

Structure Overview

Think of the Carta Porte as describing who moves what, from where to where, and in what vehicle.

Object	What it represents	SAT mapping
`senders[]`	Origin locations	`Ubicacion` (Origen)
`beneficiaries[]`	Destination locations	`Ubicacion` (Destino)
`transportation_companies[]`	Drivers, owners, carriers	`FiguraTransporte`
`vehicle`	The truck, permits, insurance	`Autotransporte`
`items[].categories[]`	The goods being transported	`Mercancias/Mercancia`

The issuer (Emisor) is derived automatically from supplier_company_id. Do not send it separately.

Field by Field

Root Level

`export_reason`

SAT field c_MotivoTraslado. Use 01 for domestic transport — goods moving within Mexico without export intent.

`reason`

SAT field c_UsoCFDI. Use G03 for general transport. The buyer typically provides this.

`senders[]` — Origin Locations

Each entry is an origin point (Ubicacion Origen). If goods are picked up from multiple locations, add one entry per location.

`company.name` and `company.legal_name`

Name of the entity at the origin — the sender or warehouse. Does not need to be the same as the invoice issuer.

`company.type`

Value	When to use
`business`	Legal entity sending the goods
`person`	Individual sending the goods

`company.address`

Full address of the origin location.

Field	Required	Notes
`address_line_1`	Yes	Street and number
`neighborhood`	No	Colonia
`city`	Yes	City name
`municipality`	Yes	Municipality name (e.g. `Benito Juarez`)
`state`	Yes	ISO 3166-2 code (e.g. `MX-CMX` for CDMX, `MX-NLE` for Nuevo León)
`country`	Yes	`MX`
`postal_code`	Yes	5-digit Mexican postal code

`company.tax_registrations`

Include the RFC of the origin entity. Required by SAT.

`company.transportation_data.date_time`

Departure datetime from this origin location. ISO 8601 format: YYYY-MM-DDTHH:MM:SS.

Maps to SAT FechaHoraSalidaLlegada.
Must be on or after invoice_date.

`company.transportation_data.distance`

Distance in kilometers from this origin to the next destination.

Required for origin locations only — do not include in beneficiaries.
Maps to SAT DistanciaRecorrida.
Use the actual road distance, not straight-line.

`beneficiaries[]` — Destination Locations

Same structure as senders[], with one key difference:

`company.transportation_data.date_time`

Arrival datetime at this destination. No distance field needed.

`transportation_companies[]` — Transport Figures

Who is physically involved in moving the goods. You can have multiple entries — one per figure type.

`company.type`

This field uses SAT codes, not business/person:

Value	SAT meaning	When to send
`01`	Operador	The driver operating the vehicle. Always required.
`02`	Propietario	The owner of the vehicle (if different from the driver). Include when the truck is owned by a company, not the driver.
`03`	Arrendador	The lessor — company that leases the vehicle. Include when the vehicle is leased.
`04`	Notificado	A notified party. Include when SAT or customs requires notification of a third party.

In most road transport operations, you'll send at least one 01 (driver). Add 02 if the truck is company-owned.

`company.tax_registrations`

For drivers (type: "01"), always include two entries:

`type`	What it is
`RFC`	Driver's personal RFC
`license number MX`	Mexican driver's license number

For owners/companies (type: "02", "03"), include only RFC.

`company.transportation_data.vehicle_type`

SAT c_ParteTransporte code. Identifies which role this figure plays with respect to the vehicle.

01 — the figure is associated with the main vehicle.
Use 01 in most cases.

`vehicle` — Road Vehicle

All vehicle attributes are sent as categories[] entries using list as the key and code as the value.

Required fields

`list` value	What to send in `code`	SAT field
`vehicle configuration`	SAT `c_ConfigAutotransporte` code (e.g. `C2` for 2-axle truck)	`ConfigVehicular`
`vehicle gross weight`	Max gross weight in tons (e.g. `15000`)	`PesoBrutoVehicular`
`plate`	Vehicle license plate (e.g. `ABC-1234`)	`PlacaVM`
`year model`	4-digit year (e.g. `2022`)	`AnioModeloVM`
`insurance name`	Name of civil liability insurer (e.g. `QUALITAS`)	`AseguraRespCivil`
`insurance policy number`	Policy number	`PolizaRespCivil`
`SICT permit type`	SAT `c_TipoPermiso` code (e.g. `TPAF10`)	`PermSCT`
`SICT permit number`	SICT permit number	`NumPermisoSCT`

Optional fields

`list` value	What to send in `code`	SAT field
`trailer type`	SAT `c_SubTipoRem` code (e.g. `CTR005`)	`SubTipoRem`
`trailer plate`	Trailer license plate	`Placa` (remolque)
`cargo insurance name`	Name of cargo insurer	`AseguraCarga`
`cargo insurance policy number`	Cargo policy number	`PolizaCarga`

`items[]` — Goods Being Transported

Each item represents a type of merchandise being carried. The categories[] array describes the physical properties.

`amount`

The declared commercial value of the goods. Use 0 if this is a purely internal transfer with no commercial value.

`categories[]`

Linking items to locations

When you have multiple senders or beneficiaries, you must link each item to its specific origin and destination using IDs:

`list` value	What to send in `code`	Purpose
`sender id`	ID matching the origin (e.g. `OR000001`)	Links this item to a specific `senders[]` entry
`beneficiary id`	ID matching the destination (e.g. `DE000001`)	Links this item to a specific `beneficiaries[]` entry

The code values here must match an identifier you assign consistently. If you only have one sender and one beneficiary, you still need to include these fields.

Weight and classification

`list` value	What to send in `code`	Required	SAT field
(no list)	SAT `c_ClaveProdServ` product code	Yes	`BienesTransp`
`unit`	SAT `c_ClaveUnidad` unit code	Yes	`ClaveUnidad`
`weight unit`	Weight unit code (always `KGM` for kilograms)	Yes	`UnidadPesoMerc`
`gross weight`	Total gross weight of this item	Yes	`PesoBruto`
`net weight`	Net weight without packaging	No	`PesoNeto`
`tare weight`	Weight of packaging	No	`PesoTara`
`pieces`	Number of individual pieces	No	`NumPiezas`

Full Example Payload

{
  "supplier_company_id": "{{company_id}}",
  "invoice_number": "CP001",
  "invoice_serie": "CP",
  "invoice_type": "transport",
  "document_type": "bill of lading road",
  "invoice_date": "2025-09-03",
  "export_reason": "01",
  "e_invoice": true,
  "currency": "MXN",
  "reason": "G03",
  "buyer": {
    "company": {
      "name": "CLIENTE EJEMPLO S.A. DE C.V.",
      "legal_name": "CLIENTE EJEMPLO S.A. DE C.V.",
      "type": "business",
      "address": { "address_line_1": "Av. Reforma 500", "postal_code": "06600", "country": "MX" },
      "tax_registrations": [
        { "type": "RFC", "number": "CEJ890423H71", "level": "country", "location": "MX", "status": "Regimen general" }
      ]
    }
  },
  "items": [
    {
      "name": "Electronicos varios",
      "quantity": 10,
      "unit_amount": 5000,
      "amount": 50000,
      "taxes": [
        { "amount": 8000, "name": "VAT", "rate": 0.16, "rate_type": "percentage", "adds_to_final_amount": true }
      ],
      "categories": [
        { "code": "43211500" },
        // SAT c_ClaveProdServ — no "list" field
        { "code": "E48", "list": "unit" },
        { "code": "KGM", "list": "weight unit" },
        { "code": "150.00", "list": "gross weight" },
        { "code": "140.00", "list": "net weight" },
        { "code": "10.00", "list": "tare weight" },
        { "code": "10", "list": "pieces" },
        { "code": "OR000001", "list": "sender id" },
        // Must match an identifier you use consistently for this origin
        { "code": "DE000001", "list": "beneficiary id" }
        // Must match an identifier you use consistently for this destination
      ]
    }
  ],
  "senders": [
    {
      "company": {
        "name": "REMITENTE EJEMPLO S.A. DE C.V.",
        "legal_name": "REMITENTE EJEMPLO S.A. DE C.V.",
        "type": "business",
        "address": {
          "address_line_1": "Insurgentes 1122",
          "neighborhood": "Del Valle",
          "city": "CDMX",
          "municipality": "Benito Juarez",
          "state": "MX-CMX",
          "country": "MX",
          "postal_code": "03100"
        },
        "tax_registrations": [
          { "type": "RFC", "number": "REM930215S87", "level": "country", "location": "MX" }
        ],
        "transportation_data": {
          "date_time": "2025-09-03T08:00:00",
          // Departure time from this origin
          "distance": 450.5
          // Kilometers to the next destination — road distance, not straight-line
        }
      }
    }
  ],
  "beneficiaries": [
    {
      "company": {
        "name": "DESTINATARIO EJEMPLO S.A. DE C.V.",
        "legal_name": "DESTINATARIO EJEMPLO S.A. DE C.V.",
        "type": "business",
        "address": {
          "address_line_1": "Av. Constitucion 500",
          "city": "Monterrey",
          "state": "MX-NLE",
          "country": "MX",
          "postal_code": "64000"
        },
        "tax_registrations": [
          { "type": "RFC", "number": "DES890423H71", "level": "country", "location": "MX" }
        ],
        "transportation_data": {
          "date_time": "2025-09-04T18:00:00"
          // Arrival time at destination — no "distance" field here
        }
      }
    }
  ],
  "vehicle": {
    "categories": [
      { "code": "C2", "list": "vehicle configuration" },
      // SAT c_ConfigAutotransporte — 2-axle truck
      { "code": "15000", "list": "vehicle gross weight" },
      { "code": "ABC-1234", "list": "plate" },
      { "code": "2022", "list": "year model" },
      { "code": "QUALITAS", "list": "insurance name" },
      { "code": "QUA-123456", "list": "insurance policy number" },
      { "code": "TPAF10", "list": "SICT permit type" },
      // SAT c_TipoPermiso — permit type from SICT registry
      { "code": "1234567890", "list": "SICT permit number" },
      { "code": "CTR005", "list": "trailer type" },
      { "code": "XYZ-5678", "list": "trailer plate" }
    ]
  },
  "transportation_companies": [
    {
      "company": {
        "name": "JUAN PEREZ GARCIA",
        "legal_name": "JUAN PEREZ GARCIA",
        "type": "01",
        // 01 = Operador (driver) — always required
        "address": {
          "address_line_1": "Calle Juarez 100",
          "city": "Monterrey",
          "state": "MX-NLE",
          "country": "MX",
          "postal_code": "64000"
        },
        "tax_registrations": [
          { "type": "RFC", "number": "PEGJ850312AB1", "level": "country", "location": "MX" },
          { "type": "license number MX", "number": "L-12345678", "level": "country", "location": "MX" }
          // Drivers always need both RFC and license number MX
        ],
        "transportation_data": { "vehicle_type": "01" }
      }
    }
  ]
}

Common Mistakes

Mistake	What happens	Fix
`sender id` / `beneficiary id` don't match any location	SAT validation error	Use consistent IDs — the value in `categories[]` must correspond to your own location identifiers
`distance` included in `beneficiaries`	Brinta validation error	Only include `distance` in `senders`, not `beneficiaries`
Driver missing `license number MX`	SAT rejects the figure	Always send both `RFC` and `license number MX` for `type: "01"`
`company.type` uses `business` instead of SAT code	Incorrect figure classification	Use `01`, `02`, `03`, or `04` — not `business`/`person`
`vehicle configuration` code not in SAT catalog	SAT validation error	Use official `c_ConfigAutotransporte` catalog values
`distance` in straight-line km	Possible SAT audit flag	Use actual road distance in kilometers

What is a Carta Porte?

Structure Overview

Field by Field

Root Level

export_reason

reason

senders[] — Origin Locations

company.name and company.legal_name

company.type

company.address

company.tax_registrations

company.transportation_data.date_time

company.transportation_data.distance

beneficiaries[] — Destination Locations

company.transportation_data.date_time

transportation_companies[] — Transport Figures

company.type

company.tax_registrations

company.transportation_data.vehicle_type

vehicle — Road Vehicle

Required fields

Optional fields

items[] — Goods Being Transported

amount

categories[]

Linking items to locations

Weight and classification

Full Example Payload

Common Mistakes

`export_reason`

`reason`

`senders[]` — Origin Locations

`company.name` and `company.legal_name`

`company.type`

`company.address`

`company.tax_registrations`

`company.transportation_data.date_time`

`company.transportation_data.distance`

`beneficiaries[]` — Destination Locations

`company.transportation_data.date_time`

`transportation_companies[]` — Transport Figures

`company.type`

`company.tax_registrations`

`company.transportation_data.vehicle_type`

`vehicle` — Road Vehicle

`items[]` — Goods Being Transported

`amount`

`categories[]`