---
title: "About Tracking Inventory Costs"
slug: "about-tracking-inventory-costs"
updated: 2026-08-10T20:23:35Z
published: 2026-08-10T20:23:35Z
canonical: "help.idibilling.com/about-tracking-inventory-costs"
---

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

# About Tracking Inventory Costs

The cost of an inventoried item is used for the following purposes:

- Calculating sales tax versus use tax
- Calculating margins
- Calculating the total value of inventory in stock
- Other reporting purposes

The IDI platform lets you track the cost of inventory per store, SKU and, if the inventory is serialized, by serial number.

For non-serialized items, the cost is determined by the average cost of the items in inventory. This is displayed in the Inventory Cost History window.

![UG template for Help](https://cdn.us.document360.io/3f7f8ade-bcb1-4ec8-af25-0c0ad8601afb/Images/Documentation/35925.gif?sv=2026-02-06&spr=https&st=2026-11-14T11%3A12%3A04Z&se=2026-11-14T12%3A12%3A04Z&sr=c&sp=r&sig=q1wo9BxzRoyvQT84u5Emm%2FgZ3%2FSjC96uREUoLhLJTSg%3D)

See Viewing Cost History

For serialized items, the actual cost of the single item is tracked directly in the serialized inventory record. This is displayed in the Inventory Search Results for Serial Number Detail window.

![UG template for Help](https://cdn.us.document360.io/3f7f8ade-bcb1-4ec8-af25-0c0ad8601afb/Images/Documentation/35916.gif?sv=2026-02-06&spr=https&st=2026-11-14T11%3A12%3A04Z&se=2026-11-14T12%3A12%3A04Z&sr=c&sp=r&sig=q1wo9BxzRoyvQT84u5Emm%2FgZ3%2FSjC96uREUoLhLJTSg%3D)

See Viewing Serialized Detail