How to Record Inventory Shrinkage (Journal Entries for Counts, Found Stock and Write-Downs)

Your books say there are 140 bags of potting mix in the back room. You count 98. Nobody sold the other 42 — or if they did, nobody rang them up. Knowing how to record inventory shrinkage is how you bring the books back into line with the shelf, and it is one of the most common adjustments any business that holds stock will ever post. Skip it and your balance sheet carries goods that no longer exist, while your gross margin looks better than the business actually performed.

This guide covers the full routine: what shrinkage is, how to value it, the journal entry, what to do when the count comes in high, and how to handle the related problem of stock that is still on the shelf but no longer worth what you paid for it.

What Inventory Shrinkage Is (and Where It Comes From)

Inventory shrinkage is the difference between the inventory your records say you have and the inventory you can physically find. It always shows up as a quantity gap first, and becomes a dollar figure once you value it. The usual causes:

• Theft — by customers, by staff, or in transit.
• Damage and spoilage — broken goods, expired food, water damage, items thrown away without being recorded.
• Supplier short-shipments — you paid for 50 and received 46, but the receipt was entered as 50.
• Paperwork errors — a sale entered against the wrong item, a return never booked, a receipt keyed twice.

The last two matter more than most owners expect. A meaningful share of “shrinkage” is really a bookkeeping error, and an error can be corrected at its source. That is why the routine below includes an investigation step before anything is posted. For scale, the National Retail Federation's security survey has put average retail shrink at roughly 1.4% to 1.6% of sales in recent years — small as a percentage, but often a large slice of net profit.

How to Record Inventory Shrinkage, Step by Step

1. Count. Physically count the items, by location if you stock more than one. Freeze receiving and shipping during the count, or note the cutoff carefully.
2. Value the count at cost. Never at selling price. Use the same costing method your books use (FIFO, LIFO or weighted average).
3. Compare. Recorded inventory at cost minus counted inventory at cost is your shrinkage.
4. Investigate before you post. Recount large differences and look for unposted receipts, returns and mis-keyed sales. Fix those transactions directly.
5. Post the adjustment for whatever difference remains unexplained.

Suppose a garden supply store's books carry $126,400 of inventory at cost. The year-end count, valued at cost, comes to $123,250. After a recount and a check of the month's receipts, $3,150 is still unaccounted for. The inventory shrinkage journal entry is:

Inventory on the balance sheet now matches the shelf, and the $3,150 reaches the income statement as a cost. It is one of the standard adjusting journal entries in any business that holds stock.

Where does inventory shrinkage go on the income statement?

Normal, recurring shrinkage belongs in cost of goods sold. It is a real cost of carrying stock, and your gross margin should reflect it. Give it its own sub-account (Inventory Shrinkage, under COGS) rather than burying it in the main COGS line, so you can watch it from period to period. One-off events are different: a flood or a break-in that wipes out a large amount of stock is better shown as a separate loss, so a single bad night does not distort your margin trend. Record any insurance recovery against that loss.

What if the count is higher than the books?

It happens more often than you would think, and it is almost always a recording error rather than free merchandise. If the count shows $420 more than the books and you cannot trace the cause, debit Inventory and credit an inventory adjustment account:

Before you post it, look hard for a duplicated receipt, an unrecorded customer return, or a sale charged to the wrong item. If one item is over and a similar item is short by the same quantity, that is a mis-pick, not shrinkage and found stock.

Valuing the Missing Units at the Right Cost

When you count item by item, you value each shortfall at that item's cost under your inventory costing method. Say 42 bags of potting mix are missing:

• Weighted average: if the average cost is $8.75 a bag, the shrinkage is 42 × $8.75 = $367.50.
• FIFO: the missing bags come out of the oldest cost layers first. If 30 bags remain from a lot bought at $8.20 and the rest from a lot at $9.10, the shrinkage is (30 × $8.20) + (12 × $9.10) = $355.20.

The key is consistency: missing units should leave the books at the same cost a sale of those units would have used. Otherwise your remaining inventory ends up carried at a cost that no longer matches the layers actually on the shelf, and your cost of goods sold drifts over time.

Damaged, Expired and Obsolete Stock: Inventory Write-Downs

Shrinkage covers goods that are gone. A related adjustment covers goods that are still there but worth less: a pallet of last season's model, water-stained boxes, items nearing expiry. Under U.S. GAAP (ASC 330), inventory measured with FIFO or average cost is carried at the lower of cost and net realizable value — the expected selling price minus the costs of completing and selling it. Inventory on LIFO or the retail method still uses the older “lower of cost or market” test.

Suppose you hold 200 units of a discontinued item that cost $45 each. The best realistic price is now $30, and selling them will cost about $4 a unit in fees and shipping. Net realizable value is $26, so each unit is overstated by $19, a total of $3,800:

The $26 becomes the new cost basis for those units. Under U.S. GAAP a write-down is not reversed if prices later recover (IFRS does allow a reversal). If the goods are worthless and you throw them away, write off their full cost the same way and remove the quantity from stock.

Should you use an inventory reserve for obsolescence?

If you carry a lot of slow-moving stock, many businesses estimate obsolescence in advance instead of item by item: debit COGS and credit an Inventory Reserve, a contra-asset account that sits beneath Inventory on the balance sheet. When specific items are scrapped, the loss is charged against the reserve. It works the same way as the allowance method in our guide on writing off bad debt, and it keeps your books from overstating inventory between counts.

Periodic vs. Perpetual: Why Some Books Never Show Shrinkage

Under a periodic system, you never record cost of goods sold sale by sale. You calculate it once a period: beginning inventory, plus purchases, minus the ending count. Anything stolen or thrown away simply disappears into that figure. There is no separate shrinkage number to see, so the problem is invisible however big it gets.

Under a perpetual system, every sale relieves inventory at cost as it happens, so the books always carry an expected quantity for every item. The count then tests the records, and the gap between them is your shrinkage, measured and visible. That visibility is the main reason to run perpetual inventory: you cannot manage a loss you cannot see.

How to Keep Shrinkage Small

• Check receipts against the purchase order. Count what came off the truck before you enter the receipt.
• Cycle count. Count a rotating slice of items every week or month, with your highest-value and most-stolen items counted most often. Small, frequent counts find problems while they are still traceable.
• Separate duties. The person who receives stock should not also be the person who posts adjustments. Our guide to internal controls for small business shows how to do this even with a three-person team.
• Record a reason on every adjustment. “Damaged,” “expired,” “count variance” — then review the totals by reason and by location every month as part of your month-end close.

How often should a small business count inventory?

At least once a year in full, at year end, so your financial statements and tax return rest on a real count. Between full counts, cycle-count your fast-moving and high-value items monthly or quarterly. A business with low shrinkage and good controls can count less often; a business with a shrinkage problem should count more often until it understands where the loss is happening.

The Bottom Line

Recording inventory shrinkage is a short routine: count, value at cost, investigate, then post one entry that debits shrinkage and credits inventory. Count overages run the other way, and stock that is still on the shelf but worth less than it cost is written down to net realizable value. Do it regularly and your balance sheet shows what you actually own, your gross margin shows what selling it actually cost, and the loss becomes a number you can manage instead of one hidden inside COGS.

Want to practice the entries first? Our free interactive double-entry accounting course lets you post inventory and cost of goods sold entries in a hands-on sandbox.

Frequently Asked Questions

What is the journal entry for inventory shrinkage?

Debit an Inventory Shrinkage account (usually a sub-account of Cost of Goods Sold) and credit Inventory for the cost of the missing units. The amount is the difference between the inventory value in your books and the value of what you physically counted, both measured at cost, not at selling price. If the count comes in higher than the books, reverse the direction: debit Inventory and credit an inventory adjustment account.

Is inventory shrinkage part of cost of goods sold?

Normal, recurring shrinkage is usually reported within cost of goods sold, ideally in its own sub-account so you can see it. It is a cost of carrying inventory, and gross margin should reflect it. Unusual, one-off losses such as a warehouse fire or a large burglary are better reported as a separate loss line, so a single event does not distort your gross margin trend.

How do you calculate the inventory shrinkage rate?

Retailers usually express shrinkage as a percentage of sales: shrinkage at cost divided by net sales for the same period. A store with $3,150 of shrinkage on $420,000 of sales has a 0.75% shrink rate. Some businesses instead divide shrinkage by recorded inventory value, which shows what share of stock went missing. Pick one formula and use it consistently so the trend means something.

What is the difference between inventory shrinkage and an inventory write-down?

Shrinkage is about quantity: units your books say you have that are not physically there. A write-down is about value: units that are still on the shelf but are worth less than they cost, because they are damaged, expired, or obsolete. Under U.S. GAAP, inventory measured with FIFO or average cost is carried at the lower of cost and net realizable value, so the drop in value is recognized as a loss when it happens.

How do you record inventory found during a count?

Debit Inventory and credit an inventory adjustment account for the cost of the extra units. Before posting, look for the cause: a purchase receipt entered twice, a customer return that was never recorded, or a sale shipped from the wrong item. If you find a specific error, correct that transaction instead, because an adjustment hides the mistake rather than fixing it.

Is inventory shrinkage tax deductible?

Generally yes, in the U.S., because recording shrinkage lowers ending inventory and so raises cost of goods sold, which reduces taxable income. You do not deduct the same loss a second time as a separate theft loss. Write-downs of excess or obsolete stock are treated more strictly: the IRS generally allows them only when the goods are actually scrapped or offered for sale at the reduced price. Confirm specifics with your tax preparer.

Related Articles

• How to Calculate Cost of Goods Sold (COGS): The Formula, Worked
• Inventory Costing Methods Explained: FIFO vs LIFO vs Weighted Average
• Adjusting Journal Entries: The 5 Types, With Worked Examples
• Internal Controls for Small Business: 9 Safeguards You Can Set Up This Week
• The Month-End Close Checklist for Small Business (8 Steps, In Order)
• How to Write Off Bad Debt (Journal Entries for Both Methods)