Raw materials are the unprocessed or minimally processed inputs a business buys and converts into a finished product. In a US firm’s books they are the first of the three inventory classes a manufacturer carries, raw materials, work in process and finished goods, and they are carried as a current asset at cost until they are issued into production.
Where the Classes Come From
The split is not a bookkeeping convention. The term inventory embraces goods awaiting sale, which is the merchandise of a trading concern and the finished goods of a manufacturer, goods in the course of production, which is work in process, and goods to be consumed directly or indirectly in production, which is raw materials and supplies (Accounting Research Bulletin No. 43, Chapter 4, paragraph 3). That guidance now sits in the Codification as Inventory, Topic 330 (FASB Accounting Standards Update 2015-11).
Reporting cuts finer than three. A registrant states separately, in the balance sheet or in a note thereto, if practicable, the amounts of major classes of inventory such as finished goods, inventoried costs relating to long-term contracts or programs, work in process, raw materials, and supplies (17 CFR 210.5-02.6(a)). Raw materials and supplies share one limb in the bulletin and sit on separate lines in a filing, which is the first place a client’s chart of accounts has to take a position.
Any class is presumed to be stated at cost, the price paid or consideration given to acquire an asset (Accounting Research Bulletin No. 43, Chapter 4, Statement 3). Which assumption about the flow of cost factors moves those costs back out is a separate choice, worked through in LIFO, and inventory’s place inside the current asset block is enumerated in current assets.
Direct Material and Indirect Material
Not every material a plant consumes is a raw material. Direct material costs include the cost of those materials that become an integral part of specific property produced and those materials that are consumed in the ordinary course of production and that can be identified or associated with particular units or groups of units of property produced (Treasury Regulation 1.263A-1(e)(2)(i)(A)). That is a traceability test, applied item by item.
The other lot carries its own definition. Indirect material costs include the cost of materials that are not an integral part of specific property produced and the cost of materials that are consumed in the ordinary course of performing production or resale activities that cannot be identified or associated with particular units of property (Treasury Regulation 1.263A-1(e)(3)(ii)(E)). Lubricants, cleaning supplies and shop consumables typically land there, so they reach a unit of product through an overhead pool instead of the raw materials account. What else that pool picks up on top of direct material is handled in costing overheads.
A Raw Materials Roll-Forward
Say a manufacturing client tracks its raw materials store on its own ledger and the month produces the figures below.
Beginning raw materials inventory $85,000
Purchases of raw materials $140,000
Raw materials issued into production $155,000
Ending balance 85,000 + 140,000 - 155,000 = $70,000The issued figure is what leaves the class, not what leaves inventory. It moves to work in process, so the total holds until the finished units are sold.
Where Raw Materials Reach the Return
There is no raw materials line on the return. Cost of goods sold, the cost of the units actually sold in the year, is figured on Form 1125-A, which carries inventory at beginning of year on line 1, purchases on line 2, and inventory at end of year on line 7. Line 6 totals lines 1 through 5, line 8 subtracts line 7 from line 6 to give cost of goods sold, and that figure goes to Form 1120, page 1, line 2 (IRS, Form 1125-A, Rev. November 2024). All three classes sit inside those two inventory figures, so direct material cost reaches the deduction through purchases and through the movement in the balance.
Schedule L does the same thing. It reports the whole inventory balance on one line, line 3 (IRS, Form 1120 (2025), Schedule L, line 3). A client that needs the class split for a lender or an auditor takes it from the books.
What Raw Materials Are Confused With
Raw Materials and Work in Process
The line between them is a moment, not a category. Material sits in raw materials while it is only held, and becomes work in process when it is issued into production. Nothing about the material changes at that point, so the entry rests on the requisition or the issue record rather than on anything visible in the store.
Raw Materials and Supplies
Both are consumed in production and the bulletin groups them in one limb, yet a filing states them as separate classes and the regulation splits the cost of materials by the same traceability test. What separates them is that test, not whether the item gets used up. Something that helps make every unit and can be tied to none of them is not a raw material, whatever the storeroom calls it.
Accountably places trained offshore accountants inside US CPA and EA firms, and a firm can put a real block of its own inventory and close work through a trial task before anything client facing depends on it.
