The Amount Object

The amount object is required on all Card Present transaction requests in Mexico 🇲🇽.

Fields

Parameter	Type	Required	Description
`currency`	string	✅	Currency of the transaction. Must be `"MXN"`.
`iva`	number	✅	Value Added Tax (VAT). Send `0` if the transaction does not include VAT.
`subtotal_iva`	number	✅	Net subtotal of a transaction subject to VAT (e.g., IVA). Do not include the tip. Send `0` if no tax applies — use `subtotal_iva0` instead.
`subtotal_iva0`	number	✅	Subtotal of a transaction with no tax. Do not include the tip. Send `0` if taxes apply — use `subtotal_iva` instead.
`tip`	number	—	Tip amount in MXN. Omit if no tip.
`extra_taxes`	object	—	Additional tax fields.
`extra_taxes.airport_tax`	number	—	Airport tax.
`extra_taxes.travel_agency`	number	—	Travel agency tax (used for airlines).
`extra_taxes.iac`	number	—	Industry and Trade Tax.
`extra_taxes.ice`	number	—	Special Consumption Tax.

Net amount = 500 MXN
IVA (16%) = 80 MXN
Total = 580 MXN

"amount": {
  "currency": "MXN",
  "iva": 80,
  "subtotal_iva": 500,
  "subtotal_iva0": 0
}

Net amount = 500 MXN
IVA = 0 MXN
Total = 500 MXN

"amount": {
  "currency": "MXN",
  "iva": 0,
  "subtotal_iva": 0,
  "subtotal_iva0": 500
}

Net amount = 500 MXN
IVA (16%) = 80 MXN
Tip = 50 MXN
Total with IVA = 580 MXN
Total with IVA + tip = 630 MXN

"amount": {
  "currency": "MXN",
  "iva": 80,
  "tip": 50,
  "subtotal_iva": 500,
  "subtotal_iva0": 0
}

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