---
title: "Create an invoice · Invoices · COUNT Partner API"
description: "Creates an invoice, estimate, or credit memo (invoiceType: \"memo\"). POST /partners/invoices"
canonical: "https://developers.getcount.com/reference/invoices/create-invoice"
source: "https://developers.getcount.com/reference/invoices/create-invoice"
---
[Invoices](https://developers.getcount.com/reference/invoices) / Create an invoice

# Create an invoice

POST `/partners/invoices`

Creates an invoice, estimate, or credit memo (invoiceType: "memo").

Required: exactly one of customerUuid OR inline customer object, date, invoiceNumber, dueDate (invoices and estimates), and products[] with productUuid, an inline product, or categoryAccountUuid for a free-text line. Optional isDraft (false posts revenue journals for migrations). Response may include _partnerInlineCreated, and `_partnerWarnings: [{ field, reason, message }]` for any field that was ignored.

HMAC signature + Bearer access token

[Try this request](https://developers.getcount.com/tools/try-it?method=POST&path=%2Fpartners%2Finvoices&body=%7B%0A++%22customerUuid%22%3A+%22dfa3219e-6af8-4c53-997a-037534f63a35%22%2C%0A++%22invoiceType%22%3A+%22invoice%22%2C%0A++%22invoiceNumber%22%3A+%22INV-1042%22%2C%0A++%22date%22%3A+%222026-03-01%22%2C%0A++%22dueDate%22%3A+%222026-03-31%22%2C%0A++%22currency%22%3A+%22USD%22%2C%0A++%22products%22%3A+%5B%0A++++%7B%0A++++++%22productUuid%22%3A+%22aa11bb22-cc33-dd44-ee55-ff6677889900%22%2C%0A++++++%22description%22%3A+%22Consulting+services%22%2C%0A++++++%22quantity%22%3A+10%2C%0A++++++%22unitPrice%22%3A+100%2C%0A++++++%22nonTaxable%22%3A+false%0A++++%7D%2C%0A++++%7B%0A++++++%22categoryAccountUuid%22%3A+%22d4e5f6a7-b8c9-0123-defa-234567890123%22%2C%0A++++++%22name%22%3A+%22Site+visit%22%2C%0A++++++%22description%22%3A+%22Travel+to+client+office%22%2C%0A++++++%22quantity%22%3A+1%2C%0A++++++%22unitPrice%22%3A+150%0A++++%7D%0A++%5D%0A%7D)

[Credit Memos API](https://developers.getcount.com/reference/credit-memo) [Customers API](https://developers.getcount.com/reference/customers) [Products & Services API](https://developers.getcount.com/reference/products-and-services) [Transactions API](https://developers.getcount.com/reference/transactions)

#### Request body

`customerUuid` uuid

Existing customer UUID. Mutually exclusive with customer.

`customer` object

Inline customer when customerUuid is omitted.

`customer` string required

Customer display name.

`invoiceType` enum

Document type. Defaults to invoice.

One of: `invoice`, `estimate`, `memo`

`date` date required

Invoice date (ISO).

`dueDate` date

Due date (ISO). Required for invoices and estimates, drafts included; only credit memos may omit it.

`currency` string

ISO 4217 currency code.

`invoiceNumber` string required

Invoice number shown to the customer.

`products` array required

The products or services billed on this invoice.

`productUuid` uuid

Product UUID from list_products. `uuid` is accepted as an alias. Omit it for a free-text line.

`categoryAccountUuid` uuid

Income account UUID from the Chart of Accounts. Required on a free-text line; on a product line it overrides the product's income account.

`name` string

Item name on a free-text line.

`description` string

Line description.

`quantity` number required

Quantity billed.

`unitPrice` number required

Price per unit.

`nonTaxable` boolean

When true, clears tax on the line.

`appliedToInvoiceUuid` uuid

For credit memos: link to an open invoice at create time.

`isDraft` boolean

When false, approves and posts revenue journals immediately (migration use case). Defaults to draft.

#### Responses

`201` Invoice created successfully.

`400` Bad request — validation failed, a missing due date on an invoice or estimate, or a free-text line with no categoryAccountUuid.

`404` Customer or product not found.

`409` The workspace has no Custom line product, so free-text lines cannot be raised.

[Previous GET Get the next invoice number](https://developers.getcount.com/reference/invoices/get-next-invoice-number) [Next PATCH Update an invoice](https://developers.getcount.com/reference/invoices/update-invoice)

POST `https://api.getcount.com/partners/invoices`

Request

```javascript
import crypto from 'node:crypto';

const BASE_URL = 'https://api.getcount.com';
const CLIENT_ID = process.env.COUNT_CLIENT_ID;
const CLIENT_SECRET = process.env.COUNT_CLIENT_SECRET;
const ACCESS_TOKEN = process.env.COUNT_ACCESS_TOKEN;

const method = 'POST';
const signingPath = '/invoices';
const timestamp = Math.floor(Date.now() / 1000).toString();
const body = {
  "customerUuid": "dfa3219e-6af8-4c53-997a-037534f63a35",
  "invoiceType": "invoice",
  "invoiceNumber": "INV-1042",
  "date": "2026-03-01",
  "dueDate": "2026-03-31",
  "currency": "USD",
  "products": [
    {
      "productUuid": "aa11bb22-cc33-dd44-ee55-ff6677889900",
      "description": "Consulting services",
      "quantity": 10,
      "unitPrice": 100,
      "nonTaxable": false
    },
    {
      "categoryAccountUuid": "d4e5f6a7-b8c9-0123-defa-234567890123",
      "name": "Site visit",
      "description": "Travel to client office",
      "quantity": 1,
      "unitPrice": 150
    }
  ]
};
const bodyString = JSON.stringify(body);

const bodyHash = crypto.createHash('sha256').update(bodyString).digest('hex');
const baseString = `${method}:${signingPath}:${timestamp}:${bodyHash}`;
const signature = crypto.createHmac('sha256', CLIENT_SECRET).update(baseString).digest('hex');

const response = await fetch(`${BASE_URL}/partners/invoices`, {
  method,
  headers: {
    'x-client-id': CLIENT_ID,
    'x-timestamp': timestamp,
    'x-signature': signature,
    'Content-Type': 'application/json',
    Authorization: `Bearer ${ACCESS_TOKEN}`,
  },
  body: bodyString,
});

console.log(await response.json());
```

Response · 201

```json
{
  "status": "success",
  "data": {
    "invoice": {
      "id": "f6a7b8c9-d0e1-2345-fabc-456789012345",
      "invoiceNumber": "INV-1042",
      "invoiceType": "invoice",
      "customerUuid": "dfa3219e-6af8-4c53-997a-037534f63a35",
      "date": "2026-03-01",
      "dueDate": "2026-03-31",
      "currency": "USD",
      "status": "draft",
      "isDraft": true,
      "approved": false,
      "isSent": false,
      "paymentStatus": "unpaid",
      "subtotal": 1000,
      "taxTotal": 85,
      "total": 1085,
      "amountDue": 1085,
      "products": [
        {
          "productUuid": "aa11bb22-cc33-dd44-ee55-ff6677889900",
          "description": "Consulting services",
          "quantity": 10,
          "unitPrice": 100,
          "nonTaxable": false
        }
      ],
      "createdAt": "2026-03-01T09:00:00.000Z",
      "updatedAt": "2026-03-02T11:15:00.000Z"
    }
  }
}
```