> ## Documentation Index
> Fetch the complete documentation index at: https://commet.co/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# invoice.overdue

> An outstanding invoice passed its due date without payment.

## When this fires

A daily scan finds outstanding invoices whose `dueDate` is in the past and emits this event once per invoice. The idempotency key is derived from the invoice, so re-running the scan never sends a duplicate.

The invoice keeps its `"outstanding"` status — overdue is a fact about the due date, not a new status. If the invoice is later paid or voided, `payment.received` or `invoice.voided` reflects the outcome.

Use it to start your own dunning flow: email the customer, show an in-app banner, or flag the account for follow-up.


## OpenAPI

````yaml /openapi/en/webhooks/2026-08-27.json webhook invoice.overdue
openapi: 3.1.0
info:
  title: Commet Webhooks
  version: '2026-08-27'
  description: >-
    Outbound webhook events emitted by the Commet API. Each event is delivered
    as a signed POST to your configured endpoints.
servers: []
security: []
paths: {}

````

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