Update an invoice line item
Patches an existing invoice line item. Only the fields provided in the request body are modified.
Authorizations
API key authentication. Pass your API key as a Bearer token.
Headers
2026-04-01 A unique string that makes a retried write safe. If you send the same request with the same key within 24 hours, the API returns the stored response and does not run the request again. A 5xx or 429 response is not stored, so a retry with that key runs the request again.
255"ik_a1b2c3d4e5f6"
Path Parameters
Unique identifier for the invoice
Unique identifier for the line-item
Body
Description of the line item
Response
Success
Amount for this line before tax (quantity x unit price)
"73.98"
Amount for this line including its tax. This is the figure a full credit of the line returns.
"80.55"
Description of the line item
Unique identifier for the line item
Whether this line item can be manually edited
Quantity of the line item
"1"
Deprecated: use amount_excluding_tax, which carries the same value. Despite the name this excludes tax.
"100.00"
Unit price of the line item, excluding tax
"100.00"
End of the service period this line covers, exclusive
Start of the service period this line covers, inclusive
Associated product identifier
Tax charged on this line
"6.57"
Percentage rate the tax was charged at
"8.875"