Buying more inventory before year-end does not usually reduce taxable income by the full purchase price. Unsold goods generally remain inventory on the balance sheet. Their cost moves into cost of goods sold as the related units are sold, subject to the applicable accounting and tax rules.
This distinction matters because an owner can spend a large amount of cash on inventory and still have a corporate tax bill based on the year’s profit.
How inventory reaches cost of goods sold
A simplified cost of goods sold calculation begins with opening inventory, adds purchases and applicable direct costs, and subtracts closing inventory. The CRA outlines this relationship in its inventory and cost of goods sold guidance.
If a corporation buys $100,000 of goods near year-end and still holds $85,000 of them at the reporting date, the full $100,000 is not automatically an expense for that year. Most of the cost remains in closing inventory. Cash has left, but the deduction follows the sale or other recognized disposition of the units.
Include the right costs in inventory
The cost of inventory may include more than the supplier invoice. Freight-in, duty, brokerage, preparation, and other costs needed to bring goods to their location and condition may need to be included. Recoverable GST/HST is generally tracked separately rather than added to cost.
The method must also be applied consistently. Missing freight and duty overstates margin when goods sell. Duplicating platform or fulfillment fees in landed cost and operating expenses understates it.
Perform a real year-end count
Amazon and 3PL reports help, but the accounting still needs a defensible quantity and ownership cut-off. Review:
- goods in Amazon fulfillment centres and third-party warehouses;
- stock in transit and the shipping terms that determine ownership;
- returns, damaged units, and unsellable inventory;
- units held at home or at a prep centre;
- supplier deposits that do not yet represent owned inventory; and
- reconciliation differences between the ledger and operating systems.
Slow-moving or damaged goods may require a valuation review. An arbitrary write-down is not a substitute for evidence about condition, selling price, and expected disposition.
Plan tax and inventory cash separately
Inventory is a working capital decision. Corporate tax is based on taxable income. Both may require cash at the same time.
Before a large order, forecast the payment schedule, sales cycle, margin, GST/HST recovery, and the corporate tax reserve. If the purchase is being accelerated mainly to “save tax,” first determine how much will remain in closing inventory. The cash impact may be immediate while the tax impact is delayed.
Reliable monthly inventory and cost of goods sold figures make this planning possible. A year-end count can correct the balance, but it cannot recreate every monthly margin or prevent an owner from spending cash that was already needed for tax.