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Vehicle buying term

Carta responsiva (transfer letter)

A signed sale document that records the handover of the car and separates each party’s responsibility.

What it means

The carta responsiva is a document signed by buyer and seller that records the vehicle handover: both parties’ details, the car’s identity (VIN/NIV, plates), price, date, and conditions.

Why it matters

It establishes from what moment each party answers for fines, accidents, or debts. It does not replace the invoice or the ownership change, but it is your evidence of the transaction while you complete the paperwork.

What to check

  • Verify that VIN/NIV, plates, and seller details match the invoice and their official ID.
  • Include price, date, mileage, and the general condition of the vehicle.
  • Sign two originals and keep a copy of the seller’s identification.

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Official references

PROFECO consumer protection resourcesSEMOVI CDMX ownership-change requirements

Related terms

Original invoice

The ownership document that helps prove where the vehicle came from and how it changed hands.

Endorsement

A transfer note on eligible paper invoices that helps document ownership changes.

Registration card

The circulation document that should align with the vehicle, plate, owner records, and local requirements.

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