Inventory shrinkage is the gap between what your accounting records say you have on hand and what a physical count actually finds. The National Retail Federation put the average retail shrink rate at 1.6 percent of sales in fiscal year 2022, which added up to more than $112 billion in industry-wide losses.1National Retail Federation. Shrink Accounted for Over $112 Billion in Industry Losses in 2022 The way you measure that gap, control it, and record it flows into cost of goods sold, gross profit, and taxable income, so it belongs on the accounting agenda rather than just the loss prevention one.
What Causes Shrinkage
Shrinkage falls into five categories: external theft, internal theft, administrative errors, vendor fraud, and damage or spoilage. Industry data suggests theft of all kinds drives roughly 65 to 75 percent of the total, with the rest split among paperwork mistakes, dishonest suppliers, and goods that arrive damaged or deteriorate on the shelf. Each category calls for different controls and, as you’ll see below, different documentation if you want an insurer or the IRS to accept the loss.
External theft covers shoplifting and organized retail crime. Small, high-value items drive most of it, and organized rings coordinate larger thefts meant for resale through online channels. The felony threshold varies widely by state, from a few hundred dollars up to $2,500.
Internal theft is harder to detect and often more damaging per incident. Employees who know the security gaps, camera blind spots, and register procedures can siphon merchandise or cash for months. Methods range from walking out with product to voiding sales after pocketing the cash or ringing up unauthorized discounts.
Administrative errors create paper losses that never involved a thief. A receiving clerk who keys 100 units when 10 arrived has just inflated book inventory by 90. Vendor fraud is similar in effect: a supplier bills for a full pallet but delivers fewer cases, and the gap only surfaces when someone reconciles the receiving records against the invoice.
Damage and spoilage cover goods that break in transit, spoil on the shelf, or become obsolete. Under GAAP, inventory must be written down to net realizable value when that value drops below cost, and damage or spoilage is one of the recognized triggers.2FASB. Accounting Standards Update 2015-11 – Inventory (Topic 330)
How to Calculate the Shrinkage Rate
The core calculation is simple. Subtract the value of your physical count from the book value in your accounting system. If the ledger shows $500,000 and the count turns up $485,000, shrinkage is $15,000.
To convert that into a rate you can benchmark, divide the dollar loss by total sales for the same period and multiply by 100. Against $1,000,000 in sales, the $15,000 loss is a 1.5 percent shrink rate, right around the retail average. Some businesses divide by book inventory value instead, which produces a higher figure and measures what share of stock disappeared. Either method works if you stay consistent, but the sales-based version is what the National Retail Federation uses in its benchmarking.1National Retail Federation. Shrink Accounted for Over $112 Billion in Industry Losses in 2022
A rate well above 1.5 percent usually points to a control problem worth investigating. A rate well below it either means your prevention is working or your counting methods need scrutiny.
Cycle Counting vs. Full Physical Inventory
A full physical inventory counts every item in every location at one point in time. That typically means shutting down receiving and shipping, scheduling extra labor, and finishing over a weekend. The result is accurate for that moment and stale by Monday.
Cycle counting verifies small subsets on a rolling basis, often daily or weekly. Most businesses use ABC analysis to set the frequency: high-value or fast-moving items get counted more often, lower-value goods rotate through on longer intervals. Because counts happen alongside normal operations, you skip the shutdown and overtime.
The bigger advantage is speed to detection. If something goes missing, you find out within days rather than at the next annual count, and the shorter feedback loop makes it far easier to trace what happened. Cycle counting also supports a perpetual inventory system by continuously proving that recorded balances match reality, which strengthens both your shrinkage estimates and your financial reporting.
The two methods aren’t mutually exclusive. Many businesses cycle count throughout the year and still perform a full physical count annually for financial statement purposes or to satisfy their auditors.
Controls That Reduce Shrinkage
The Three-Way Match
The three-way match is the standard control against vendor fraud. When an invoice comes in, accounts payable compares three documents: the purchase order (what you ordered), the goods receipt note (what actually arrived), and the vendor invoice (what they want you to pay). If quantities, prices, or totals don’t line up across all three, the invoice gets flagged before payment. This one process catches short-shipping, overcharging, and billing for goods that never arrived.
Segregation of Duties and Access Controls
Internal theft becomes easier when one person controls the whole chain from receiving to record-keeping. Separating those roles so the person who receives shipments isn’t the same person who updates inventory records builds in a natural check. Restricting stockroom access, requiring sign-outs for high-value items, and installing surveillance in storage areas all raise the difficulty for employees who might otherwise walk product out the door.
Technology
Barcode and RFID scanning at receiving, during storage, and at point of sale creates an electronic trail for every unit. When a discrepancy shows up, you can trace the last known scan point and narrow the investigation quickly. Exception-based reporting software that flags unusual register activity, voided transactions, or abnormal discount patterns catches the register-side losses that a physical count won’t reveal.
Recording Shrinkage on the Financial Statements
Under GAAP, inventory appears on the balance sheet at cost, but only while cost doesn’t exceed the net amount you can recover by selling the goods. When shrinkage, damage, obsolescence, or a market price drop pushes net realizable value below cost, you must write the inventory down and recognize the loss in the current period.2FASB. Accounting Standards Update 2015-11 – Inventory (Topic 330) This applies to inventory valued using FIFO, average cost, or any method other than LIFO or the retail inventory method.
The journal entry credits the inventory account and debits either cost of goods sold or a separate inventory shrinkage expense account. Routing shrinkage to its own account gives management clearer visibility, but both treatments are acceptable. What matters is that the balance sheet reflects what you actually have. Skipping the adjustment inflates reported assets, overstates gross profit, and distorts the picture you present to lenders, investors, and tax authorities.
Deducting Shrinkage on Your Tax Return
Shrinkage generally reduces taxable income because it flows through cost of goods sold. Section 162 of the Internal Revenue Code allows deductions for ordinary and necessary business expenses, and inventory that disappears is a real cost of doing business.3Office of the Law Revision Counsel. 26 USC 162 – Trade or Business Expenses Adjusting ending inventory downward increases COGS, which lowers taxable profit.
Where It Appears on the Return
Corporations report cost of goods sold on Form 1125-A, which feeds Form 1120.4Internal Revenue Service. 2025 Instructions for Form 1120 Shrinkage does not get its own line. The loss is embedded in the ending inventory figure: a lower ending inventory means higher COGS and lower taxable profit. Partnerships and S corporations use the same form, and sole proprietors report COGS on Schedule C. Whatever the entity, you need physical count or cycle count records to support the ending inventory you report.
Estimating Shrinkage Between Counts
Section 471(b) of the Internal Revenue Code allows businesses to estimate shrinkage between physical counts, provided they conduct physical counts at each location on a regular and consistent basis and adjust their estimates when actual counts show the estimates were off.5Office of the Law Revision Counsel. 26 USC 471 – General Rule for Inventories This matters because most retailers count well before year-end, and shrinkage keeps accumulating after count day.
The IRS formalized a retail safe harbor in Revenue Procedure 98-29 for businesses primarily engaged in retail trade.6Internal Revenue Service. Revenue Procedure 98-29 Under this method, you calculate a historical ratio of shrinkage to sales based on actual shrinkage found in physical counts over the most recent three tax years, then multiply that ratio by sales for the period between the last physical count and year-end. The resulting figure is your estimated shrinkage accrual. You can’t adjust the historical ratio using judgmental factors, floors, or caps, and once calculated for a given year the estimate can’t be revised retroactively based on post-year-end count results.
Small Business Exemption
If your average annual gross receipts over the prior three tax years are $31 million or less, you qualify as a small business taxpayer and are exempt from the general inventory accounting rules.5Office of the Law Revision Counsel. 26 USC 471 – General Rule for Inventories The base threshold is $25 million and is adjusted annually for inflation.7Office of the Law Revision Counsel. 26 USC 448 – Limitation on Use of Cash Method of Accounting Small business taxpayers can treat inventory as non-incidental materials and supplies or follow the method used on their financial statements. You still need to track and report actual losses; the exemption simplifies the accounting, not the record-keeping.
A Note on Insurance
Commercial crime insurance and employee dishonesty bonds (also called fidelity bonds) can reimburse inventory theft losses, but both come with a limitation that catches many owners off guard: most policies exclude losses proven solely by inventory records. If your only evidence is that the count came up short, the insurer will deny the claim.
Coverage typically requires independent corroboration of the theft. That means evidence beyond the numbers, such as security camera footage, witness statements, delivery records showing items that never arrived, an employee confession, or proof that an employee destroyed records and disappeared when the shortage surfaced. Under blanket fidelity bond forms you don’t necessarily have to name the specific employee who stole, but you do have to prove a theft actually occurred through something other than an inventory computation. Crime policies also commonly exclude indirect losses such as business interruption, legal expenses, the cost of preparing the proof of loss, and fines or penalties. Read the “your duties after a loss” clause before a loss happens so you know what documentation to start collecting immediately.