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# Create bill

> Enter a supplier invoice as a bill with its lines and tax. Inputs, cURL, Python and Node.js examples and an example response.

Source: https://cotlet.dev/docs/api/myob/create_bill

Docs sections: [Get started](https://cotlet.dev/docs.md) · [REST API](https://cotlet.dev/docs/api.md) · [MCP](https://cotlet.dev/docs/mcp.md) · [SDKs & CLI](https://cotlet.dev/docs/sdks.md) · [Integrations](https://cotlet.dev/docs/integrations.md)

Enter a supplier invoice as a bill with its lines and tax.

MYOB API: https://cotlet.dev/docs/api/myob.md

`POST https://cotlet.dev/api/v1/myob/suppliers/{supplier_id}/bills`

Access: write. Confirm: waits for the user's OK before it runs.

Creates an open bill and returns its number, tax, total and balance due. Pass the supplier's own invoice number so a later call to list_bills can spot a duplicate. Layout service takes free-text lines and item takes item codes. The bill changes your books and your payables, so it asks first. By default you confirm each call; you can switch that off for this tool.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `supplier_id` | string | yes | Supplier card ID, e.g. SUP000004. |
| `supplier_invoice_number` | string | no | The number on the supplier's own invoice. |
| `date` | date | no | Bill date. Default: today. |
| `due_date` | date | no | Due date. Default: from the supplier terms. |
| `layout` | enum | no | service or item. Default: service. |
| `lines` | array | yes | Objects with description or item_code, amount and tax_code, e.g. GST. |
| `tax_inclusive` | boolean | no | true if amounts include tax. Default: false. |

## Request

**cURL**

```bash
curl -X POST https://cotlet.dev/api/v1/myob/suppliers/SUP000004/bills \
  -H "Authorization: Bearer $COTLET_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"supplier_invoice_number":"INV-8841","date":"2026-10-10","lines":[{"description":"Office rent, October","amount":2000,"tax_code":"GST"}]}'
```

**Python**

```python
result = client.call("myob", "create_bill", {"supplier_id":"SUP000004","supplier_invoice_number":"INV-8841","date":"2026-10-10","lines":[{"description":"Office rent, October","amount":2000,"tax_code":"GST"}]})
```

**Node.js**

```js
const result = await cotlet.call('myob', 'create_bill', {"supplier_id":"SUP000004","supplier_invoice_number":"INV-8841","date":"2026-10-10","lines":[{"description":"Office rent, October","amount":2000,"tax_code":"GST"}]});
```

**CLI**

```bash
cotlet call myob create_bill --data '{"supplier_id":"SUP000004","supplier_invoice_number":"INV-8841","date":"2026-10-10","lines":[{"description":"Office rent, October","amount":2000,"tax_code":"GST"}]}'
```

## Example response

```json
{
  "bill_number": "00000311",
  "supplier_id": "SUP000004",
  "supplier": "Bayside Property",
  "supplier_invoice_number": "INV-8841",
  "status": "open",
  "date": "2026-10-10",
  "due_date": "2026-11-09",
  "subtotal": 2000,
  "tax": 200,
  "total": 2200,
  "balance_due": 2200
}
```

Previous: [Record invoice payment](https://cotlet.dev/docs/api/myob/record_invoice_payment.md)
Next: [Record bill payment](https://cotlet.dev/docs/api/myob/record_bill_payment.md)

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## For AI agents: sign your user up

Is your user asking you to sign them up for Cotlet? You can do it for them, no account or key needed.

1. Read the fields and their allowed values: GET https://cotlet.dev/api/v1/access-requests
2. Ask the user for each value: email, apps, what you will do with them. If they leave the password to you, generate a strong one and show it to them.
3. Show the user what you will send, then POST it as JSON to https://cotlet.dev/api/v1/access-requests.

One call creates the account and sends the access request; we email the user when access is granted.