---
title: "Editing the supplier expense categorization"
slug: "editing-the-supplier-expense-categorization"
description: "Define default categories and tax rates per supplier in the Payhawk spend management platform: edit the Expense categorization tab to auto‑populate fields."
updated: 2026-10-27T14:16:59Z
published: 2026-10-27T14:16:59Z
canonical: "payhawk.com/editing-the-supplier-expense-categorization"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://payhawk.com/help/llms.txt
> Use this file to discover all available pages before exploring further.

# Editing the supplier expense categorization

Apart from the [general, payment, contact, and pre-defined additional supplier details](/help/editing-viewing-and-applying-supplier-details), from the **Expense categorization** tab for a supplier, you can also define values for built-in and custom expense fields that relate to expenses matched to that supplier.

## Notes on editing supplier expense categorization

- The **Suppliers** > **Expense categorization** tab for a supplier displays the **Category** and **Tax rate** [built-in expense fields](/help/creating-editing-and-deleting-expense-categories) by default. In this way, you can specify the values for these fields and they'll be automatically applied to the expenses matched with that supplier.

![The Expense categorization tab of a supplier record, showing the default Category, Tax rate and Profit Center values with an Edit link.](https://cdn.payhawk.com/navigation-redesign-didi_20261009_ai/editing-the-supplier-expense-categorization-01_20261009_ai.png)
- The **Suppliers** > **Expense categorization** tab for a supplier will display any [custom expense field](/help/expense-fields-1) whose [suggestion strategy](/help/automatic-population-of-expense-field-data) was set to **Supplier** by a Payhawk administrator at your company. In this way, you can specify the value of that custom expense field and it'll be automatically applied to the expenses matched with that supplier.

![Fields library settings for the Profit Center custom field, with Supplier selected as the source for suggested values.](https://cdn.payhawk.com/navigation-redesign-didi_20261009_ai/editing-the-supplier-expense-categorization-02_20261009_ai.png)

## Modifying the expense categorization for a supplier

To edit the expense categorization for a supplier:

1. Log in to the [Payhawk Web Portal](https://portal.payhawk.com/).
2. Go to **Suppliers**.
3. Select the desired supplier by clicking on it.
4. Under the **Expense categorization** tab, click on the **Edit** button.
5. To change the desired values, use the respective drop-down menus and select the new data. Optionally, add a note regarding the changes you've made.
6. Click on **Save** to confirm your changes.

![Edit expense categorization side panel with Category and Tax rate drop-downs, a note field, and Save and Cancel buttons.](https://cdn.payhawk.com/virtual-qa/2026-10-06-37523105300-1/editing-the-supplier-expense-categorization-03.png)

## Useful resources

- [Automatic population of expense field data](/help/automatic-population-of-expense-field-data)
- [Syncing suppliers between Payhawk and ERP systems](/help/syncing-suppliers-between-payhawk-and-erp-systems)