---
title: "Create Billing Adjustment"
method: POST
path: "/billing/developer/adjustments/{customer_id}"
tags: ["Billing", "billing"]
---

# Create Billing Adjustment

`POST /billing/developer/adjustments/{customer_id}`

Create a billing adjustment for a customer. Developer only.

## Path parameters

- `customer_id` string, uuid, required

## Request body

- CreateBillingAdjustmentRequest
  - `description` string, required
  - `amount_cents` integer, required
  - `adjustment_type` 'credit' | 'charge', required
  - `recurrence` 'one_off' | 'recurring', required
  - `effective_date` string, date-time, required
  - `expiration_date` string, date-time, nullable
  - `send_notification_email` boolean

## Response `201`

Successful Response

- BillingAdjustmentResponse
  - `billing_adjustment_id` string, uuid, required
  - `customer_id` string, uuid, required
  - `description` string, required
  - `amount_cents` integer, required
  - `amount_display` string, required
  - `adjustment_type` 'credit' | 'charge', required
  - `recurrence` 'one_off' | 'recurring', required
  - `effective_date` string, date-time, required
  - `expiration_date` string, date-time, nullable
  - `is_consumed` boolean, required
  - `is_active` boolean, required
  - `created_by` string, uuid, nullable
  - `created_at` string, date-time, required
  - `updated_at` string, date-time, required

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/openintake/apis/fastapi.md) · [All operations](https://skmtc.dev/openintake/apis/fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/openintake/fastapi/revisions/4a81645b59f6/schema)