If your business sells physical products, the year-end inventory count is one of the most consequential days in your bookkeeping year. Cost of goods sold is calculated as beginning inventory plus purchases minus ending inventory, so every dollar your count is off moves your reported profit by the same dollar. Overcount by $8,000 and you report $8,000 more profit than you earned, and pay tax on it.
A count does not need to be elaborate to be accurate. It needs a clean cutoff, a method that prevents double-counting, and a careful job of turning quantities into dollars afterward. This checklist walks through all three.
Before the count: set the cutoff
Pick the count date. Ideally it is the last day of your fiscal year, after close of business. If that is impractical, count as close to year end as you can and adjust for what was received and sold in between — but every day of gap is another chance for error.
Freeze movement during the count. Hold incoming deliveries in a separate area marked "not counted," and stop shipping until counting is done. Then make sure the paperwork matches the cutoff: every item physically received on or before the count date should have its vendor bill entered, and every item shipped to a customer should have its invoice recorded. A shipment counted in inventory and also invoiced as a sale is counted twice.
Sort out ownership before anyone picks up a clipboard. Goods in transit belong to whoever holds title under the shipping terms: under FOB shipping point, goods your supplier has shipped are already yours; under FOB destination, they are not yours until they arrive. Goods you hold on consignment for someone else are not your inventory and should be set aside. Your own goods sitting at a consignment shop, a warehouse, or a second location are yours and must be counted there.
Prepare the floor. Tidy and group like items, label shelf locations, and print pre-numbered count sheets (or set up a scanner) organized by location. Pre-numbering lets you confirm afterward that every sheet came back.
During the count: count once, record everything
Work in teams of two — one person counts, one writes — and where possible use people who are not responsible for the inventory records, so the count is an independent check rather than a confirmation of what the system already says.
Count units, not dollars, and record the unit of measure that matches your records. A case of 24 recorded as 1 when your system tracks eaches is a 23-unit error that looks perfectly reasonable on paper.
Tag or mark each area once it is counted so nothing is skipped or counted twice. Have someone spot-check a sample of counted areas before the teams move on.
Note condition as you go. Damaged, expired, obsolete, or slow-moving stock should be flagged on the count sheet, because it may need to be valued below cost later.
After the count: turn quantities into an honest number
Value the count at cost, not at retail price. Use the same costing method you use the rest of the year, whether that is first-in first-out, average cost, or specific identification, and apply it consistently. Items flagged as damaged or obsolete may need to be written down to what they can realistically be sold for; your accountant can confirm how to handle those for both the books and the return.
Compare counted quantities to what your records said you had, and investigate the large variances before you accept them. A big gap is often a unit-of-measure mix-up, an unentered receipt, or a miscount rather than real shrinkage.
Post the adjustment. The inventory account on your balance sheet should equal the valued count, with the difference running through cost of goods sold or a separate shrinkage account. Keep the signed count sheets with your year-end records; they are the support for one of the largest numbers on your tax return.
Ask your accountant early whether any simplified inventory method applies to your business for tax purposes, so you know before year end what the count needs to produce.
Make the count the easy part of year end
A count is only as useful as the books it lands in. If purchases were never entered as bills, or sales were recorded only as bank deposits, the adjustment after the count becomes a guess.
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