---
title: "Void an invoice"
method: POST
path: "/api/invoices/{id}/void"
tags: ["Invoices"]
---

# Void an invoice

`POST /api/invoices/{id}/void`

Cancel an unpaid invoice. Paid invoices cannot be voided — use a refund instead.

## Path parameters

- `id` string, required

## Response `200`

Invoice voided

- InvoiceResponse
  - `id` string, required
  - `invoiceNumber` string, required
  - `subscriptionId` string
  - `customerId` string, required
  - `amount` string, required — Decimal amount as string
  - `currency` string, required
  - `status` 'DRAFT' | 'PENDING' | 'PAID' | 'FAILED' | 'CANCELED', required
  - `dueDate` string, required
  - `paidAt` string
  - `pdfUrl` string
  - `metadata` object — Line items, plan info, discounts
  - `customer` InvoiceCustomerResponse
    - `id` string, required
    - `name` string, required
    - `email` string, required
  - `createdAt` string, required
  - `updatedAt` string, required

## Other responses

- `400` — Cannot void a paid invoice
- `404` — Invoice not found

---

[API](https://skmtc.net/novabilling/apis/novabilling-api.md) · [All operations](https://skmtc.net/novabilling/apis/novabilling-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/novabilling/novabilling-api/versions/0e449a4e0dc8/schema)