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POST
/
invoices
Create an invoice
curl --request POST \
  --url https://api.corebill.io/v1/invoices \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "customer_id": "cus_a1b2c3d4e5f6",
  "issue_date": "2025-04-15",
  "due_date": "2025-05-15",
  "currency": "USD",
  "notes": "Thank you for your business",
  "payment_terms": "Net 30",
  "tax_rate": 16,
  "discount_type": "percentage",
  "discount_value": 10,
  "items": [
    {
      "name": "Web Development",
      "description": "Full-stack web application development",
      "quantity": 40,
      "unit": "hour",
      "unit_price": 150
    },
    {
      "name": "UI/UX Design",
      "description": "User interface and experience design",
      "quantity": 20,
      "unit": "hour",
      "unit_price": 120
    }
  ]
}
'
{
  "data": {
    "id": "inv_s9t0u1v2w3x4",
    "invoice_number": "INV-2025-000002",
    "customer_id": "cus_a1b2c3d4e5f6",
    "status": "draft",
    "issue_date": "2025-04-15",
    "due_date": "2025-05-15",
    "subtotal": 8400,
    "discount_type": "percentage",
    "discount_value": 10,
    "discount_amount": 840,
    "subtotal_after_discount": 7560,
    "tax_rate": 16,
    "tax_amount": 1209.6,
    "total": 8769.6,
    "amount_paid": 0,
    "amount_due": 8769.6,
    "currency": "USD",
    "notes": "Thank you for your business",
    "payment_terms": "Net 30",
    "public_token": "1713182400000-k8x2m9p4q7w1",
    "created_at": "2025-04-15T12:00:00.000Z",
    "customer": {
      "id": "cus_a1b2c3d4e5f6",
      "name": "John Doe",
      "contact_email": "john@example.com"
    },
    "items": [
      {
        "id": "di_y5z6a7b8c9d0",
        "item_name": "Web Development",
        "description": "Full-stack web application development",
        "quantity": 40,
        "unit": "hour",
        "unit_price": 150,
        "subtotal": 6000,
        "total": 6000,
        "sort_order": 0
      },
      {
        "id": "di_e1f2g3h4i5j6",
        "item_name": "UI/UX Design",
        "description": "User interface and experience design",
        "quantity": 20,
        "unit": "hour",
        "unit_price": 120,
        "subtotal": 2400,
        "total": 2400,
        "sort_order": 1
      }
    ]
  }
}

Authorizations

​
Authorization
string
header
required

API key authentication. Generate keys from the Corebill dashboard under the Developers section.

Example: Authorization: Bearer sk_live_abc123def456

Query Parameters

​
company_id
string
required

The company ID to scope the request to

Body

application/json
​
customer_id
string
required

Customer ID to associate with this invoice

Example:

"cus_a1b2c3d4e5f6"

​
issue_date
string<date>

Invoice issue date (defaults to today)

Example:

"2025-04-15"

​
due_date
string<date>

Payment due date (defaults to 30 days from issue_date)

Example:

"2025-05-15"

​
currency
string

Currency code (ISO 4217). Defaults to company currency or USD

Example:

"USD"

​
notes
string

Invoice notes visible to the customer

Example:

"Thank you for your business"

​
payment_terms
string

Payment terms description

Example:

"Net 30"

​
tax_rate
number

Tax rate as a percentage (e.g., 16 for 16%)

Example:

16

​
tax_id
string

Tax identifier or label

Example:

"VAT"

​
discount_type
enum<string>

Type of discount to apply

Available options:
percentage,
fixed
Example:

"percentage"

​
discount_value
number

Discount value (percentage or fixed amount)

Example:

10

​
items
object[]

Line items for the invoice

Response

Invoice created successfully

​
data
object
required

Full invoice object including items and public_token (returned by GET /invoices/{id} and POST /invoices)