---
title: "Create Bill Split"
method: POST
path: "/api/banking/bill-splits"
tags: ["Banking"]
---

# Create Bill Split

`POST /api/banking/bill-splits`

## Request

- Base URL: `https://api.earmarkiq.app` (the document declares no server; this is the origin it was published from)
- URL: `https://api.earmarkiq.app/api/banking/bill-splits`
- Auth: HTTP bearer

Create or upsert a bill split for a merchant.

## Request body

- BillSplitRequest
  - `merchant_name` string, required
  - `user_share_pct` integer, required
  - `label` string, nullable

## Response `201`

Successful Response

- BillSplitResponse
  - `id` string, required
  - `merchant_name` string, required
  - `user_share_pct` integer, required
  - `label` string, nullable, required
  - `created_at` string, required
  - `updated_at` string, required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/earmarkiq/apis/earmark-api.md) · [All operations](https://skmtc.dev/earmarkiq/apis/earmark-api/llms.txt) · [OpenAPI document](https://skmtc.dev/earmarkiq/apis/earmark-api/revisions/4a2c41907105?raw)