Credit Notes, Debit Notes & FCE MiPyME

Credit note — invoice_type: credit / document_type: credit note
Debit note — invoice_type: debit / document_type: debit note
FCE — invoice_type: debit / document_type: mipyme

Quick Payload Reference — Credit Note

{
  "supplier_company_id": "{{company_id}}",
  "invoice_type": "credit",
  "document_type": "credit note",
  "e_invoice": true,
  "invoice_date": "2026-04-15",
  "invoice_due_date": "2026-05-15",
  "invoice_serie": "A",
  "currency": "ARS",
  "exchange_rate": 1,
  "original_invoice_id": "{{original_invoice_brinta_id}}",
  "reason": "void",
  "buyer": {
    "company": {
      "name": "CLIENTE EJEMPLO S.A.",
      "legal_name": "CLIENTE EJEMPLO S.A.",
      "type": "business",
      "address": { "country": "AR", "state": "AR-C" },
      "tax_registrations": [
        {
          "type": "CUIT",
          "number": "30-12345678-9",
          "level": "country",
          "location": "AR",
          "status": "Responsable Inscripto"
        }
      ]
    }
  },
  "items": [
    {
      "name": "Partial return - Consulting service",
      "quantity": 1,
      "amount": 50000,
      "taxes": [
        {
          "name": "IVA",
          "type": "VAT",
          "rate": 0.21,
          "rate_type": "percentage",
          "amount": 10500,
          "level": "country",
          "location": "AR",
          "adds_to_final_amount": true
        }
      ]
    }
  ]
}

Quick Payload Reference — Debit Note

{
  "supplier_company_id": "{{company_id}}",
  "invoice_type": "debit",
  "document_type": "debit note",
  "e_invoice": true,
  "invoice_date": "2026-04-15",
  "invoice_serie": "A",
  "currency": "ARS",
  "exchange_rate": 1,
  "original_invoice_id": "{{original_invoice_brinta_id}}",
  "buyer": {
    "company": {
      "name": "CLIENTE EJEMPLO S.A.",
      "legal_name": "CLIENTE EJEMPLO S.A.",
      "type": "business",
      "address": { "country": "AR" },
      "tax_registrations": [
        {
          "type": "CUIT",
          "number": "30-12345678-9",
          "level": "country",
          "location": "AR"
        }
      ]
    }
  },
  "items": [
    {
      "name": "Price adjustment",
      "quantity": 1,
      "amount": 10000,
      "taxes": [
        {
          "name": "IVA",
          "type": "VAT",
          "rate": 0.21,
          "rate_type": "percentage",
          "amount": 2100,
          "level": "country",
          "location": "AR",
          "adds_to_final_amount": true
        }
      ]
    }
  ]
}

Field Reference

Root fields

Field	Type	Required	Notes
`invoice_type`	string	Yes	`"credit"` for credit notes. `"debit"` for debit notes and FCE
`document_type`	string	Yes	`"credit note"`, `"debit note"`, `"mipyme"`, `"credit note mipyme"`, or `"debit note mipyme"`
`e_invoice`	boolean	Yes	`true`
`invoice_date`	string	Yes	Today's date
`invoice_due_date`	string	No	Defaults to `invoice_date + 30 days` if not sent
`invoice_serie`	string	Yes	Must match the point of sale used on the original invoice
`currency`	string	Yes	Same currency as the original invoice
`exchange_rate`	number	Yes	`1` for ARS
`original_invoice_id`	string	Yes	BRINTA ID of the original invoice
`original_invoice_external_id`	string	Alt	Client-side ID of the original invoice — use if `original_invoice_id` is not available
`reason`	string	No	`"void"`, `"return"`, `"discount"`, or `"price_adjustment"`

Buyer, Tax Registrations, and Items

Same structure as the Argentina Standard Invoice. Items represent only the amounts being corrected, not a copy of the full original.

FCE MiPyME

Same payload as the standard invoice with these differences:

Field	Value
`document_type`	`"mipyme"`
`buyer.company.type`	`"business"` only
`buyer.company.tax_registrations[].status`	`"Responsable inscripto"`

Common Mistakes

Mistake	Fix
Credit note with `invoice_type: "debit"`	Use `invoice_type: "credit"`
Not sending `original_invoice_id`	Always link to the original document
Copying all items for a partial correction	Only include the amounts being corrected
FCE to an individual buyer	`buyer.company.type` must be `"business"`
Different `invoice_serie` than the original	Must match the original's point of sale