Glossary term

Work in Process Inventory

Work in process inventory is inventory that has entered production but is not yet finished and ready for sale.

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Written by: Editorial Team

Updated

April 21, 2026

What Is Work in Process Inventory?

Work in process inventory is inventory that has entered production but is not yet finished and ready for sale. It sits between raw materials and finished goods in the operating cycle.

For a manufacturer, work in process can represent meaningful value because labor, materials, and overhead have already been committed. For a lender, it can be one of the harder inventory categories to value because it is unfinished, business-specific, and often less marketable than completed goods.

Key Takeaways

  • Work in process inventory is partially completed inventory still moving through production.
  • It sits between raw materials and finished goods in the inventory chain.
  • Its lending value can be difficult to assess because it is unfinished and often specialized.
  • Lenders may discount it more heavily than finished goods or exclude parts of it from availability.
  • It matters because operational value and liquidation value can differ sharply.

How Work in Process Inventory Works

A company pulls materials into production, adds labor or processing, and creates partially completed inventory. At that stage, the items are no longer simple inputs but are not yet market-ready products either. Their value to the company may be significant because they are on the path to saleable goods.

This means work in process can look valuable inside the business while still being awkward from a collateral perspective. If production stops or liquidation begins, the unfinished nature of the goods can reduce how readily they convert into cash.

How Work-in-Process Inventory Affects Lending

Work in process matters in lending because appraisers and lenders often treat unfinished inventory more cautiously than fully saleable goods. Some work in process may be highly customized or may require additional manufacturing to become saleable. That can reduce recovery value in a distressed sale and affect how much the lender is willing to include in the collateral formula.

That is why work in process often sits in a middle ground: more developed than raw materials, but less financeable than fully finished goods.

Work in Process Versus Finished Goods

Inventory type

Condition

Typical lending concern

Work in process

Partially completed

Whether unfinished goods can be sold or completed economically

Finished goods

Completed and ready for sale

How quickly finished products can be monetized

This distinction matters because a lender is focused on what the collateral can realistically turn into under stress, not simply on how much cost has already been invested in it.

How Completion Status Changes Inventory Value

Inventory-heavy businesses may assume all inventory growth improves financing flexibility. In practice, a lender may value work in process conservatively or require a separate liquidation appraisal before giving meaningful credit to it. That can create a gap between accounting value and borrowing capacity.

For businesses in manufacturing or build-to-order sectors, understanding that gap is part of managing lender expectations.

The Bottom Line

Work in process inventory is partially completed inventory still inside the production process. It matters because lenders and appraisers may treat unfinished goods more cautiously than finished products when deciding how much inventory can support borrowing.