Tax, transport, environmental and trade

Scrap regulation in Mexico

Selling steel scrap in Mexico has its own rules: the buyer withholds the full VAT, transport carries a Carta Porte and the waste has an environmental regime. This guide summarises each rule with the law and article it comes from.

Updated on

Truck loaded with steel scrap on a truck scale at the entrance of a recycling yard.

This page is general information, current as of its update date. It does not replace advice from your accountant or lawyer for a specific case. Laws are cited by their Spanish names.

The rules at a glance

TopicRuleWho it applies to
VATA company that buys scrap withholds 100% of the VAT charged to it1Buyer
InvoiceCFDI 4.0 with the receiver's exact tax details2Seller
TransportCarta Porte 3.1 supplement when travelling on federal highways3Carrier or cargo owner
EnvironmentalIndustrial scrap is special handling waste; large generators need a management plan4Generator and collector
WeighingScales used in commercial transactions are subject to verification5Whoever weighs
FreightFederal permit and weight and dimension limits6Carrier
Foreign tradeExports duty free; imports pay a general 35% tariff from 2026, except stainless7Importer or exporter

VAT: the scrap withholding

The VAT Law requires companies that acquire scrap to use as an industrial input or to trade it to withhold the tax charged to them1. The Regulations only reduce the withholding for services, commissions, leases and freight; for scrap there is no reduction, so 100% of the VAT charged is withheld8.

  • The 2026 Miscellaneous Tax Resolution expressly includes in scrap "all materials from the recycling of ferrous and non ferrous metals", however they are described on the CFDI or presented (bales, plates, pieces or ingot)9.
  • The withholding is made on payment and paid to the tax authority by the 17th of the following month, with no credit or offset against it1.
  • Businesses dedicated exclusively to trading scrap can request an immediate refund of their VAT balance9.
  • Companies that hire road freight also withhold 4% of the freight value from the carrier8.

Individual collectors

There is a facility for individuals who only collect scrap to sell it for the first time, with no fixed premises and prior year income below MXN 2,000,000. The buyer can register them with the tax authority and issue the CFDI on their behalf through a certified provider, withholds 5% of the amount as final income tax and also withholds the VAT. Purchases under this scheme are capped according to the buyer's income9.

CFDI 4.0 and tax status certificate

The CFDI must carry the receiver's tax ID (RFC), name or legal name, tax address postal code and CFDI use2. That is why we ask for the tax status certificate (constancia de situación fiscal): the law does not require it, but it is where those exact details come from and it prevents rejected invoices.

Carta Porte

Since July 17, 2024 only CFDI 4.0 with the Carta Porte 3.1 supplement is valid3. Who issues it depends on who moves the cargo9:

  • Hired freight

    The carrier issues an income CFDI with the supplement. Whoever hires it provides the exact goods data and each is liable for what it provides9.

  • Own vehicle

    The scrap owner issues a zero value transfer CFDI, with its own tax ID as issuer and receiver9.

  • No federal stretch

    If no federal highway is used, a CFDI without the supplement is enough. This is presumed for vehicles up to a C2 truck and federal stretches of 30 km at most9.

The supplement records origin and destination with date and time, distance, total gross weight, the code and weight in kilograms of each item, the SICT permit, vehicle configuration, insurance and the driver's licence3.

What happens without it

Failing to issue the CFDI is fined MXN 22,300 to 127,530, and issuing it without the required supplement MXN 450 to 670 per invoice. Moving goods without a CFDI with Carta Porte leads to a presumption of smuggling2.

Environmental regime

The waste law defines special handling waste as waste generated in production processes that is neither hazardous nor municipal solid waste4. Uncontaminated industrial scrap fits there.

  • Management plan. Large generators (10 tonnes or more a year) of the waste listed in NOM-161 must have one, registered with the state. The standard includes "ferrous metal containers, packaging and sections"104.
  • State authorisations. Authorising the collection and recycling of special handling waste is a state power4.
  • When it becomes hazardous. If it shows hazardous characteristics or appears in the NOM-052 listings, such as spent cutting and quenching oils11. Containers that held hazardous materials are considered hazardous, and hazardous waste must not be mixed with other waste4.
  • Third party hazardous waste. Collecting or transporting it requires a SEMARNAT authorisation4. Bluegreen does not accept it.

Scales and weighing

Measuring instruments used in commercial transactions are regulated by the Quality Infrastructure Law, and the owner of a scale must allow anyone affected by a measurement to verify the procedure5. Weighing instruments have their own technical standard12 and are verified periodically.

Weight is the basis of the price, the withholdings and the weight declared in the Carta Porte. That is why every weighing we record carries a ticket with folio and photo.

Road freight

Federal road freight requires a SICT permit, as does private freight, except below 4 tonnes of payload, or 8 if the owner is a company6. Vehicles must respect the weights and dimensions in NOM-01213.

Foreign trade

Ferrous scrap is tariff heading 7204. Its export is duty free7. Since January 1, 2026 imports pay a general tariff of 35%, except stainless steel (7204.21.01), which remains duty free7. Preferential rates under trade agreements may differ.

Companies under the IMMEX programme have their own rules for scrap from temporarily imported goods; its destination should be documented before it is sold.

Other rules that touch the operation

  • Signing and keeping documents. Electronic contracts and records are kept under NOM-151, with certificates from an accredited certification provider14.
  • Anti money laundering. Buying and selling ferrous scrap is not a vulnerable activity: that law covers precious metals, gemstones, jewellery and watches15.
  • Personal data. Processing contact data is governed by the data protection law published in March 202516. See our privacy notice.

How we handle it on every lot

  1. 01

    Tax onboarding

    We ask for the tax ID and tax status certificate before the first purchase.

  2. 02

    Documented transport

    Every pickup leaves with the carrier's Carta Porte and an outgoing weight.

  3. 03

    Payment with withholding

    We settle with a CFDI and apply the VAT withholding the law requires.

  4. 04

    Complete file

    CFDI, Carta Porte, tickets, signed records and impact certificate stay in the client portal. See reports.

Frequently asked questions

Who withholds VAT on a scrap sale?

The company buying the scrap withholds 100% of the VAT charged to it18.

Do I need a Carta Porte to move scrap?

Yes, if you travel on federal highways. If a carrier moves it, the carrier issues the CFDI with the supplement; if you use your own vehicles, you issue a transfer CFDI9.

Is scrap hazardous waste?

Clean scrap is not. It becomes hazardous if contaminated with substances such as spent oils or if it held hazardous materials114.

Can steel scrap be exported?

Exports under heading 7204 are duty free7. Check the current requirements for your operation with your customs broker.

Sources

Every figure on this page comes from a third party publication. Names and logos belong to their owners and only identify the source; they do not imply endorsement.

  1. Cámara de Diputados, leyes federales vigentesLey del Impuesto al Valor Agregado, art. 1o.-A (vigente)Open the publication
  2. Cámara de Diputados, leyes federales vigentesCódigo Fiscal de la Federación, arts. 29-A, 84 y 103 (vigente)Open the publication
  3. Servicio de Administración Tributaria (SAT)Complemento Carta Porte (2026)Open the publication
  4. Cámara de Diputados, leyes federales vigentesLey General para la Prevención y Gestión Integral de los Residuos (vigente)Open the publication
  5. Cámara de Diputados, leyes federales vigentesLey de Infraestructura de la Calidad, arts. 119 a 123 (2020)Open the publication
  6. Cámara de Diputados, leyes federales vigentesLey de Caminos, Puentes y Autotransporte Federal, arts. 8, 39 y 40 (vigente)Open the publication
  7. Cámara de Diputados, leyes federales vigentesLey de los Impuestos Generales de Importación y de Exportación, partida 7204 (2025)Open the publication
  8. Cámara de Diputados, leyes federales vigentesReglamento de la Ley del IVA, art. 3 (vigente)Open the publication
  9. Diario Oficial de la FederaciónResolución Miscelánea Fiscal para 2026 (reglas 2.7.3.5, 2.7.7.1.1 a 2.7.7.2.8, 4.1.1 y 4.1.2) (2025)Open the publication
  10. Diario Oficial de la FederaciónNOM-161-SEMARNAT-2011, residuos de manejo especial sujetos a plan de manejo (2013)Open the publication
  11. Diario Oficial de la FederaciónNOM-052-SEMARNAT-2005, características y listados de residuos peligrosos (2006)Open the publication
  12. Diario Oficial de la FederaciónNOM-010-SCFI-1994, instrumentos de medición para pesar de funcionamiento no automático (1994)Open the publication
  13. Diario Oficial de la FederaciónNOM-012-SCT-2-2017, peso y dimensiones máximas de vehículos (2017)Open the publication
  14. Diario Oficial de la FederaciónNOM-151-SCFI-2016, conservación de mensajes de datos y digitalización de documentos (2017)Open the publication
  15. Cámara de Diputados, leyes federales vigentesLey Federal para la Prevención e Identificación de Operaciones con Recursos de Procedencia Ilícita, art. 17 (vigente)Open the publication
  16. Cámara de Diputados, leyes federales vigentesLey Federal de Protección de Datos Personales en Posesión de los Particulares (DOF 20 de marzo de 2025) (2025)Open the publication

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