Update Expense

PUT PATCH /public/action/expenses/update

Updates an existing expense, identified by id in the request body. Use PATCH to change a few fields (partial merge) or PUT to replace the whole record.

Authentication: X-API-KEY header (see Authentication).

PUT is a full replace

With PUT, fields you omit are overwritten. For a few fields, use PATCH instead. id is required for both; accountId is forced to your workspace.

Request body

The full Expense object. Key fields:

Field	Type	Description
id	string	Required. Id of the expense to update.
amount	number	Expense amount.
currency	string	Currency code.
taxRate	number	Tax rate.
taxInclusive	boolean	Whether amount includes tax.
category	string	Expense category.
vendorId	string	Vendor id.
clientId	string	Client to bill (optional).
projectId	string	Related project (optional).
billNo	string	Bill / receipt number.
paid	boolean	Whether the expense is paid.
paidDate, dueDate	date	Paid / due dates.
reimbursable	boolean	Billable / reimbursable.
markupPercent	number	Markup applied when billed to a client.
description, notes	string	Text fields.

Request (PATCH — partial)

curl -X PATCH https://api.withmoxie.com/public/action/expenses/update \
  -H "X-API-KEY: your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "id": "66b0f7d4c3a9e40012ab7722",
    "paid": true,
    "paidDate": "2026-07-10"
  }'

Response

Returns the full updated Expense object.

{
  "id": "66b0f7d4c3a9e40012ab7722",
  "accountId": 10016,
  "amount": 120.00,
  "currency": "EUR",
  "category": "Software",
  "vendor": "Adobe",
  "description": "Stock photos",
  "paid": true,
  "paidDate": "2026-07-10",
  "reimbursable": true
}

Errors

Status	Meaning
412 Precondition Failed	id was missing from the body.
404 / Not Found	No expense with that id exists in your workspace.