Tax Plan: Buy $500,000 of Goods on December 20 and Expense Them

September 22, 2026

If your business sells merchandise, there may be a valuable year-end tax planning opportunity that many small-business owners overlook.

Under today’s tax rules, many qualifying small businesses can deduct the cost of inventory when it is purchased and paid for, even if the goods remain on the shelf at year-end. But there is one critical requirement: your bookkeeping must support that treatment.

The tax law allows businesses with average annual gross receipts of less than $32 million to use simplified inventory accounting methods. If your accounting records consistently expense merchandise purchases when they are made, your tax deduction can generally follow those books. That can produce a substantial deduction before year-end.

On the other hand, if your accounting system records purchases in an inventory asset account and deducts them only when the goods are sold, your tax deduction generally must wait until the sale occurs.

The key is consistency. You cannot change your accounting method in December simply to create a larger deduction. In fact, changing inventory accounting methods usually requires IRS approval. Likewise, purchases must be genuine business transactions, not simply exist to generate a tax deduction. The merchandise must be received and paid for before year-end, and the purchase must make business sense.

If your business expects a profitable year, reviewing your inventory accounting method before year-end could produce meaningful tax deferrals. While this strategy generally postpones taxes rather than permanently eliminating them, improving cash flow by delaying taxes can still provide a significant financial advantage.

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