---
search:
  tags:
    - billing
    - DELETE
seo:
  description: >-
    Deletes a new invoice that has not yet been sent. When an invoice is…
    Reference for the DELETE /billing/invoices/{id} endpoint in the Leadtime
    Public API API.
sidebar:
  badge: DELETE
  label: Delete an invoice
title: Delete an invoice
type: openapi-operation
---
Deletes a new invoice that has not yet been sent. When an invoice is deleted, all included billable items are returned to potential invoices and can be billed again.

**What happens when you delete an invoice:**
1. The invoice is soft-deleted (marked with deletedAt timestamp)
2. All included billable items are reverted to unbilled status:
   - Tasks: marked as unbilled (`billed=false`), invoice time cleared
   - Express quotations: marked as unbilled (`billed=false`)
   - Subscription billing rows: marked as unbilled (`billed=false`)
   - Projects: marked as unbilled (`billed=false`) for SingleProject invoices
   - Interim payments: marked as unbilled (`isBilled=false`)
3. All items become available again in potential invoices (GET /billing/potential-invoices)

**Important restrictions:**
- Only invoices with status "New" can be deleted
- Invoices that have been sent (status "Sent", "Paid", or "Cancelled") cannot be deleted
- To cancel a sent invoice, use the cancel invoice endpoint instead

**Use cases:**
- Remove an invoice that was created by mistake
- Return items to potential invoices for re-billing with different settings
- Correct billing errors before sending the invoice

**What is returned:**
- Success response confirming the invoice was deleted
- All billable items are automatically returned to potential invoices

<Operation source="api-reference" id="invoicescontroller-deleteinvoice" />