Inventory accounting

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Inventory accounting
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Inventory accounting is part of accounting activities in a company that refer to changes in inventoried assets. Typical company inventory are:

  • raw goods,
  • in-progress goods,
  • finished goods.

The role of inventory accounting is to assign value to those types of inventory. The volume of each type of inventory is under continuous change, as the production and sales processes progress. Therefore, it is important to define the date on which the inventory accounting report was prepared.

General accounting rules (GAAP) define how to properly account inventory. The risk is that wrong inventory accounting can impact on overstatement of company value (too much value assigned to inventory).

Raw goods

Raw material - material intended for further processing. Raw materials are products of the mining industry, agriculture, forestry or are created as a result of waste processing. [1][2]:

  1. energy resources,
  2. recyclable materials,
  3. non-renewable resources,
  4. renewable raw materials.

In-progress goods

These products, which were previously past the stage of production and production. There are also products that process uncompleted. Work in progress also includes:

  1. materials - they are purchased for own consumption purposes, they include basic materials, auxiliary materials and materials on the way,that is, those that have not yet been accepted into the warehouse
  2. finished products - are products intended for sale[3],
  3. goods - these are assets purchased for sale and are mainly found in trading companies,
  4. advance payment for deliveries[4].

Finished goods

Finished products - a component of current assets, included in inventories. Finished products are included in the group of finished products, equally with completed robots and services. So ready products are such components of current assets that have gone through all production phases and meet all previously assumed quality and technical standards.

Accounting evidence related to the movement of finished products in the enterprise:

  1. when adopting finished products from production - single or multi-sentence evidence Acceptance of products - Pw,
  2. when accepting returns of finished products questioned by the recipient - proof of Pz.

To be in contact with the sale of finished products, a document confirming this event is needed. VAT invoice is such a document. An additional document for the sale of finished products is the Wz document (it may refer to the issue of products directly from production or from the warehouse). Therefore, the sale of finished products is a process in which we book two economic events that do not have to be on the same day.

  1. Revenue from the sale of products, where the invoice issued by the seller is the basis,
  2. Expenditure of sold products, where the basis of the document is Wz.

In the case of retail sales, their expenditures are filled up like expenditures of materials, like modern methods:

  1. FIFO - "first come - first came"[5],
  2. LIFO - "the last came - the first came"[6],
  3. "average prices" method[7].



  1. Types of raw materials
  2. On the Evaluation of Shortage Cost for Inventory Control of Finished Goods
  3. Distinction between Intermediate and Finished Products in Intra-Firm Trade
  4. Advance Payments in Contracts for Sale of Manufactured Goods
  5. Simulation and Synthesis Techniques for Asynchronous FIFO Design
  6. The Materiality of LIFO Accounting Distortions on Liquidity Measurements
  7. The Valuation Accuracy of the Price-Earnings and Price-Book Benchmark Valuation Methods

Author: Magdalena Pawłowska