Annul an invoice

Withdraw an issued invoice with a documented reason.

reason is required here (3–500 characters); that is the only difference from POST /v1/invoices/{id}/void, which performs exactly the same operation and persists a placeholder when you omit it.
Prefer this endpoint whenever the reason has to be traceable — the text you send is kept in the invoice audit trail and, when the company is enrolled in VeriFactu, becomes the motivo of the AEAT cancellation record.
The invoice moves to annulled and voided_at starts reporting when that happened.
The status is terminal and the operation is irreversible: there is no transition back to sent or draft, and the correlative number of the series is neither released nor reused.
Effect on AEAT. With VeriFactu enabled, annulling queues an anulación record to AEAT asynchronously: a 200 means the invoice is annulled in Factuarea, not that AEAT has already processed it — poll the invoice for its VeriFactu status.
The original alta record is not deleted or rewritten; AEAT keeps both entries, the issuance and its cancellation.
With VeriFactu inactive the annulment is purely internal and nothing is transmitted.
Annul or correct? Annulment withdraws the whole document and only works before payment; it produces no amending document, so it never restates an amount.
A corrective (POST /v1/invoices/{id}/corrective) creates a new invoice that amends the original and is the only path for an invoice that is already paid or that is only partly wrong.
Limits: only sent or overdue can be annulled.
A draft is not annulled but deleted; paid, cancelled and annulled return 422. An invoice that is a corrective can never be annulled — issue a new corrective of the original instead.
Use GET /v1/invoices/{id}/can-annul to check eligibility, and whether a VeriFactu cancellation record will be created, before posting here.

Client-generated opaque key (up to 255 characters; UUID v7 recommended) that makes retries safe: the first response is cached and replayed for repeats without re-executing the mutation. Reusing a key with a different body returns 409 idempotency_key_reused. See the Idempotency guide. Required on this operation: repeating it delivers an effect that cannot be taken back (an email sent, a file generated, a third-party call, a charge), so a request without this header is rejected with 422 idempotency_key_required before any business logic runs.

Length1 <= length <= 255

Factuarea-Version?string

Pin the API version (YYYY-MM-DD, Stripe-style date versioning) for this request; omit to use the key's pinned version, or the latest if none. Unsupported version → 400 unsupported_api_version; malformed → 400 parameter_invalid_format. The effective version is echoed in the Factuarea-Version response header. See the Versioning guide.

Formatdate

X-Active-Profile?string

Operate on behalf of a child company (gestoría master key): pass its public id (UUID v7) and the request runs against that child's data without changing the key's scope, tier or environment (omit to use the key's own company). Invalid UUID → 400 parameter_invalid_uuid; unknown or non-owned id → 404 profile_not_found. See the Acting on behalf guide.

Formatuuid

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

reason*string

Length3 <= length <= 500

Response Body

`application/json`

Request example

const apiKey = process.env.FACTUAREA_API_KEY;if (!apiKey) throw new Error("Set FACTUAREA_API_KEY");const response = await fetch("https://api.factuarea.com/v1/invoices/01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a01/annul", {  method: "POST",  headers: { Authorization: `Bearer ${apiKey}`, ...{"Accept":"application/json","Content-Type":"application/json","Idempotency-Key":"erp-2026-public-api-v1-invoices-annul"} },  body: JSON.stringify({  "reason": "Anulación solicitada por el cliente: pedido cancelado antes de la entrega."}),});if (!response.ok) throw new Error(await response.text());if (response.status !== 204) console.log(await response.json());

Response example

{
  "data": {
    "id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a42",
    "object": "invoice",
    "number": "FAC-2026-00042",
    "is_number_assigned": true,
    "type": "F1",
    "series": {
      "id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8b02",
      "code": "FAC-2026"
    },
    "client": {
      "id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a01",
      "name": "Acme Soluciones SL"
    },
    "status": "annulled",
    "price_list_id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8b10",
    "price_list_name": "Tarifa profesional 2026",
    "issued_on": "2026-03-15",
    "due_on": "2026-04-14",
    "subtotal": 1000,
    "taxes_total": 210,
    "total_vat": 210,
    "total_retention": 0,
    "total_surcharge": 0,
    "total": 1210,
    "total_disbursements": 0,
    "total_to_pay": 1210,
    "currency": "EUR",
    "notes": "Servicios profesionales marzo 2026.",
    "external_id": "ERP-2026-0042",
    "lines": [
      {
        "object": "invoice_line",
        "description": "Consultoría técnica (10 h)",
        "additional_description": "Auditoría inicial e informe de mejoras",
        "product": {
          "id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8b03",
          "name": "Consultoría técnica (hora)"
        },
        "quantity": 10,
        "unit_price": 100,
        "tax_rate": 21,
        "retention_rate": 0,
        "surcharge_rate": 0,
        "discount_percent": 0,
        "subtotal": 1000,
        "taxes": 210,
        "total": 1210,
        "indirect_tax_regime": "iva",
        "variant": null,
        "presentation": null,
        "item_kind": "service",
        "commercial_unit_code": "HUR",
        "base_unit_code": "HUR",
        "conversion_factor": "1.000000",
        "base_quantity": "10.0000",
        "price_list_id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8b10",
        "price_list_name": "Tarifa profesional 2026",
        "price_source": "price_list",
        "price_unit_code": "HUR",
        "configuration": null,
        "options": [],
        "price_semantics": "per_commercial_unit",
        "price_adjustment_total": "0.0000",
        "option_adjustments_absorbed": false,
        "regime_key": null,
        "exemption_reason": null,
        "aeat_tax_code": "S1",
        "line_type": "NORMAL",
        "source_invoice_reference": null,
        "source_invoice_ids": null,
        "unit": null,
        "exemption_reason_text": null
      }
    ],
    "metadata": {
      "order_id": "PO-2026-0042"
    },
    "tags": [
      "consultoria",
      "cliente-vip"
    ],
    "custom_fields": [
      {
        "field": "centro_coste",
        "value": "CC-2026-001"
      },
      {
        "field": "numero_pedido",
        "value": "PO-2026-0042"
      }
    ],
    "operation_regime": "general",
    "exemption_reason": null,
    "legal_mentions": [],
    "exclude_347": false,
    "verifactu_status": "not_applicable",
    "paid_amount": 0,
    "pending_amount": 1210,
    "payments": {
      "detail": [],
      "total": 0,
      "pending": 1210
    },
    "is_corrective": false,
    "corrective": null,
    "payment": null,
    "public_link": {
      "object": "public_link",
      "url": "https://app.factuarea.com/d/01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a42",
      "id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a42",
      "enabled": true,
      "expires_at": "2026-09-15T23:59:59Z",
      "max_days": 120
    },
    "substituted_by": null,
    "recurring": null,
    "paid_at": null,
    "paid_on": null,
    "sent_at": null,
    "voided_at": "2026-03-21T10:00:00Z",
    "void_reason": "Documento emitido por error.",
    "scheduled_for": null,
    "scheduled_action": null,
    "channel": null,
    "source_store_id": null,
    "created_at": "2026-03-15T11:30:00Z",
    "updated_at": "2026-03-21T10:00:00Z"
  }
}

{
  "error": {
    "type": "authentication_error",
    "code": "missing_api_key",
    "message": "Falta header Authorization o X-API-Key.",
    "doc_url": "https://docs.factuarea.com/guides/errors#missing_api_key",
    "request_id": "req_0f0c621c56ef937e915e44442c"
  }
}

{
  "error": {
    "type": "authorization_error",
    "code": "insufficient_scope",
    "message": "Esta operación requiere el scope 'invoices:void'. Tu API key solo tiene los scopes: ninguno.",
    "doc_url": "https://docs.factuarea.com/guides/errors#insufficient_scope",
    "request_id": "req_c9bbaaec109408919d5a4f32ab"
  }
}

{
  "error": {
    "type": "not_found_error",
    "code": "invoice_not_found",
    "message": "Factura no encontrada.",
    "param": "invoice_uuid",
    "subcode": "invoice_not_found",
    "doc_url": "https://docs.factuarea.com/guides/errors#invoice_not_found",
    "request_id": "req_7e031e34b64ca4e61c3529ce4d"
  }
}

{
  "error": {
    "type": "idempotency_error",
    "code": "idempotency_key_reused",
    "message": "Esa `Idempotency-Key` ya se usó con un payload distinto. La clave identifica una operación concreta, así que reutilizarla para otra vaciaría de sentido el replay.",
    "doc_url": "https://docs.factuarea.com/guides/errors#idempotency_key_reused",
    "request_id": "req_ac3f1679e04c63ab50ef5db011"
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "invalid_param_value",
    "message": "El campo reason es obligatorio.",
    "param": "reason",
    "errors": [
      {
        "param": "reason",
        "code": "parameter_missing",
        "message": "El campo reason es obligatorio."
      }
    ],
    "doc_url": "https://docs.factuarea.com/guides/errors#invalid_param_value",
    "request_id": "req_59e37454ceecd4e54445429e6e"
  }
}

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limit_exceeded",
    "message": "Has excedido el límite de requests permitido. Reintenta más tarde.",
    "doc_url": "https://docs.factuarea.com/guides/errors#rate_limit_exceeded",
    "request_id": "req_c51087887ddbdaaf3900f4d4af"
  }
}

{
  "error": {
    "type": "api_error",
    "code": "internal_error",
    "message": "Algo se rompió en nuestro lado al procesar la petición. La condición no la provoca tu payload.",
    "doc_url": "https://docs.factuarea.com/guides/errors#internal_error",
    "request_id": "req_e131991234686e6ce3f3759015"
  }
}

Annul an invoice

Authorization

Path Parameters

Headers

Request Body

Response Body

`application/json`

`application/json`

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`application/json`

Annul an invoice

Authorization

Path Parameters

Headers

Request Body

Response Body

200application/json

401application/json

403application/json

404application/json

409application/json

422application/json

429application/json

500application/json

`application/json`

`application/json`

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