In example 3 of How Small Businesses Can Expense Inventory Costs, we used an IRS example to show how a business could receive and pay for $500,000 of goods on December 20 and deduct them.     

That article in last month’s issue drew a thoughtful response from a tax professional, who wrote:

IRS Pub 334 (page 16) states: “Exception for small business taxpayers. If you are a small business taxpayer, you can choose not to keep an inventory, but you must still use a method of accounting for inventory that clearly reflects income.” The instructions for the Schedule C state the same thing.

It is a fair point, and the sentence reads ominously in isolation.

If a small business must still “clearly reflect income,” does that phrase hand the IRS a veto over expensing inventory at purchase?

The short answer is no—but only if the taxpayer’s books do the work. This follow-up article looks at what the publication language means, where it comes from, and why everything ultimately turns on one question: Does your business bookkeeping expense the goods when you buy them?

Where the Publication 334 Language Comes From

With the Tax Cuts and Jobs Act, a small-business taxpayer (average annual 2026 gross receipts less than $32 million ) is exempt from the traditional inventory accounting rules.

Publication 334 and the Schedule C instructions summarize that exemption in a single phrase: you may choose not to keep an inventory, but your method of accounting for inventory still must “clearly reflect income.”

Read alone, that sounds like a huge hurdle. The tax code says otherwise. The small-business exemption under Section 471(c) provides that a qualifying taxpayer’s inventory method “shall not be treated as failing to clearly reflect income” if it follows one of two sanctioned approaches.

The Two Sanctioned Methods

The final regulations, adopted in January 2021, spell out the choices for a taxpayer who has no “applicable financial statement” (no audited financials or similar statements).

The first option treats inventory as non-incidental materials and supplies, which defers cost recovery until the goods are used or consumed—in practice, until they are sold.6 This “materials and supplies” option is useless for tax planning.

The second—the one that matters for year-end tax planning—is the “books and records” method. Here the taxpayer recovers inventory costs for tax purposes in the same year and in the same manner that its books and records recover them, provided those books are prepared in accordance with the taxpayer’s actual accounting procedures.

The difference between the two is the entire ballgame for a December purchase.

• Under the materials-and-supplies option, goods bought on December 20 that are still on the shelf at year-end produce no current deduction.

• Under the books-and-records method, the timing follows the books—whatever they say, for better or worse.

The Books Must Expense the Goods at Purchase

Here is the condition that decides these cases.

The books-and-records method does not let a taxpayer choose a favorable tax result and then characterize the books to match.

It works the other way around: the tax treatment follows the books. If the small business’s accounting records—the same records it uses to manage the company, prepare its profit and loss statement, and report to its lender— expense merchandise when it is purchased and paid for, the business can generally deduct those costs at that time for tax purposes.

If instead the books carry an inventory asset account, debiting inventory at purchase and recognizing cost of goods sold at sale, then the books themselves say you are on an inventory accounting method.

Three things to know:

1. Consistency is not optional. The method must be the one the business has genuinely and regularly used—not one adopted in December to accommodate a large purchase, and not one applied selectively to big buys while smaller ones sit in an asset account.

2. Software defaults count. If your accounting software books purchases to an inventory asset account, that is your accounting method for this purpose (even if no one ever made a deliberate  choice to set it up that way). The default becomes the method. Note the distinction, though: Records kept purely for operations, such as quantity counts used to know when to reorder, are not accounting records. What matters is how the purchase is treated on the ledger, not whether you track what’s on the shelf.

3. Switching is a method change. A business that has been capitalizing inventory on its books cannot simply start expensing purchases mid-year; changing the treatment is a change in method of accounting requiring IRS consent, generally sought on Form 3115 and accompanied by a Section 481(a) catch-up adjustment.That path is available prospectively, but it will not retroactively bless a year-end maneuver. 

What the Publication Language Does Not Do

Two limits on Publication 334 are worth stating plainly.

First, IRS publications and form instructions are simplified guidance, not law. Courts have long held that informal publications cannot override the statute and regulations, and taxpayers can be neither bound nor saved by publication language that diverges from the tax code.

Where a one-sentence summary compresses Section 471(c), the statute controls—and the statute considers its small-business exception a conforming books-and-records method that clearly reflects income.

Second, the statutory protection runs to the method, not to every transaction booked under it. A cash-method taxpayer must actually pay by December 31 to get a deduction for the calendar year. This means funds transferred or a credit card charged, not a promissory note or an open invoice.

You need the goods in hand before year-end. Prepayments for merchandise not yet received don’t qualify.

And the purchase must have ordinary business substance: normal goods at normal prices that the business will sell in the ordinary course of business.

Accelerating a real purchase for tax reasons is legitimate planning. A purchase with no business logic—such as

goods the taxpayer cannot store or does not carry, or bought subject to a side agreement to return them—does not

make the grade.

Takeaways

Our commenter’s instinct was right: the Publication 334 sentence deserves attention.

But its function is to warn against having no method, not to impose a discretionary override on the methods

Congress expressly protected. For the small-business taxpayer with no applicable financial statement, the

December inventory deduction rises or falls on the books.

If you expense the goods at purchase consistently and genuinely, and you pay and take delivery before year-end,

you have the cash basis deduction in hand.

But if you keep an inventory account on the ledger, your deduction waits for the sale.

Keep in mind that the year-end purchase to reduce this year’s taxes is a “kick the can down the road” strategy. It

can work to your benefit, but it does not create permanent savings.