---
title: "Expense data model"
url: "https://docs.unified.to/accounting/expense/model"
description: "API reference for Expense data model. Launch multiple pre-built Expense integrations today with zero maintenance — all through a single API."
generated_at: "2026-06-09T20:00:11.283Z"
---
# Expense data model

 View field support, webhooks, and list parameters for each integration on the [Supported Integrations](/accounting/integrations) page. 

### 

* Data Model
* Typescript Type
* Zod Shape
* Python Class

Data Model

**id**string 

**created\_at**date 

(ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

**updated\_at**date 

(ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

**user\_id**string 

references a HR employee/user (reference to HrisEmployee)

**contact\_id**string 

(reference to AccountingContact)

**account\_id**string 

(reference to AccountingAccount)

**name**string 

**payment\_method**string 

DIRECT, CHEQUE/CHECK, CASH, OTHER

**posted\_at**date 

(ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

**total\_amount**number 

**currency**string 

**tax\_amount**number 

**reimbursed\_amount**number 

**reimbursed\_at**date 

(ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

**approved\_at**date 

(ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)

**approver\_user\_id**string 

references HR employee/user (reference to HrisEmployee)

**lineitems** array 

**raw**any 

**organization\_id**string