38% of SMB Inventory Is Excess Stock [2026 Overstock Data]
SMBs carry 38% excess inventory on average - that's $560K in trapped capital. Here's what overstocking truly costs and how to fix it. [2026 stats]
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The average small or mid-sized business is currently sitting on $560,000 in excess inventory.
That's not a one-time mistake. It's a recurring cost. The carrying charges on that stock run 20-30% of its value every year. That works out to roughly $112,000-$168,000 in annual waste - before you account for markdowns, obsolescence, or the opportunity cost of capital locked in shelves.
Globally, retailers hold an estimated $800 billion in excess inventory at any given time, according to IHL Group research. U.S. retailers alone carried $813 billion in unsold merchandise as of December 2025, per the U.S. Census Bureau.
The scale is staggering. But the real problem isn't the number - it's that most of it is invisible. Businesses don't know they're overstocked until the damage is already done.
This post breaks down what overstocking actually costs in 2026, why it happens, and what you can do about it.
The Global Scale: $800 Billion in Trapped Capital
Overstocking isn't a niche problem. It's one of the largest drains on working capital in the global economy.
IHL Group estimates that inventory distortion - a combination of excess stock and stockouts - costs retailers approximately $1.77 trillion annually. Overstocking accounts for roughly $800 billion of that figure. Stockouts account for most of the rest.
For context: that $800 billion in trapped capital is larger than the GDP of the Netherlands.
The U.S. retail picture is similarly stark. According to U.S. Census Bureau data, retail inventories sat at $813 billion in December 2025 - a figure that includes significant dead and slow-moving stock for many categories.
What's happening? A mix of overcautious buying, supply chain hedging post-pandemic, and the persistent failure of demand forecasting. Businesses ordered aggressively when supply chains were broken. Now they're sitting on the backlog.
SMB Reality: 38% of Your Stock May Be Sitting There for Nothing
The big-retail numbers are easy to dismiss as someone else's problem. But SMB data tells the same story at a smaller scale.
Netstock's 2024 SMB Inventory Report found that 38% of the average SMB's inventory is excess stock - stock that exists beyond what's needed to safely cover demand. That's more than one-third of the shelves.
Cin7's Q1 2024 survey put an even sharper point on it: the average overstock value per SMB seller is $560,000. Nearly half of that excess (48%, according to the same data) qualifies as dead stock - items that have essentially stopped selling and are unlikely to recover.
Source: Netstock SMB Inventory Report 2025. How businesses are responding to excess stock.
Netstock's 2025 follow-up data shows that businesses are finally starting to respond: 39% say they're actively reducing excess, up from 36% in 2024. But 27% are still ordering on autopilot - letting old purchase patterns run, even as stock piles up. That's a significant share still heading in the wrong direction.
The pattern is consistent: most SMBs know they overstock, but the tools and discipline to stop it aren't yet in place.
What Overstocking Actually Costs: The Breakdown
Carrying excess inventory isn't free. Every extra pallet, every overstocked SKU, every case of unsold seasonal goods carries an ongoing cost you're paying whether you notice it or not.
Industry benchmarks from the Aberdeen Group and APQC put annual carrying costs at 20-30% of inventory value. Some estimates go higher - the National Retail Federation puts the total range at 25-47% when you factor in opportunity cost. Here's what makes up that figure:
Carrying cost breakdown as % of inventory value per year. Source: Aberdeen Group / APQC benchmarks.
The biggest single hit is often obsolescence risk - products that slowly lose value, get damaged in storage, or simply stop being relevant to buyers. This is the cost that blindsides businesses the most. Storage costs are visible; the slow death of a SKU that used to sell well is not.
Put it together: for a typical SMB sitting on $560,000 of excess stock, the annual carrying cost is $112,000 to $265,000 per year - gone without generating a single dollar of revenue.
For more detail on what carrying costs include and how to benchmark your own, see our post on inventory carrying costs and how to reduce them.
6 Root Causes of Overstocking (and Which One Dominates)
Overstocking doesn't just happen. It's the result of repeatable mistakes - often the same ones, year after year.
Primary causes of overstocking. Sources: industry survey data compiled from multiple 2024-2025 reports.
1. Inaccurate demand forecasting (42%) - This is the big one. Businesses that rely on last year's sales, gut feel, or a spreadsheet average are systematically overbuying. Manual spreadsheet forecasting has a mean error rate of around ±25%, which at scale creates massive variance.
2. Long lead times and MOQs (28%) - When a supplier has an 8-week lead time and a 500-unit minimum order, you're forced to buy more than you need today and hope demand catches up. It often doesn't.
3. Fear of stockouts (16%) - This is psychological. A business that's been burned by a stockout tends to overcompensate on the next order. The trauma of running out of a best-seller leads to buffer stock that becomes excess stock. See our data on how businesses are trying to prevent stockouts.
4. Poor cross-team visibility (9%) - When sales, purchasing, and warehouse teams can't see the same real-time data, duplicate orders happen. Someone orders what they think is missing; it was already on the way.
5. Seasonal misjudgments (5%) - Ordering for seasonal peaks then failing to ramp down. The classic: a strong Christmas season leads to over-ordering for the next year, and you're selling Easter stock in September.
The Hidden Cash Flow Damage
The numbers above measure the direct cost of carrying excess inventory. But overstocking has an indirect cost that's often even bigger: it freezes your working capital.
Money sitting in unsold stock can't be used to pay suppliers early (and get discounts), hire staff, invest in marketing, or build a cash cushion. For small businesses operating on tight margins, this isn't a theoretical problem - it's the difference between growing and stalling.
Inventory that takes too long to turn also has a compounding effect. Every month a product sits on the shelf, its risk profile worsens: it becomes more likely to be discounted, damaged, or obsolete. Carrying costs accumulate. And the longer you wait to act, the less you get when you do mark it down.
Research from RetailWire found that overstocking contributes to a 3.2% revenue loss for affected businesses - not from the carrying costs alone, but from the downstream effects: markdowns, diverted attention, warehousing constraints, and the cash flow squeeze that prevents businesses from buying more of what actually sells.
For a business doing $5M in annual revenue, that's $160,000 in lost revenue per year - quietly bleeding out through a problem most owners don't track on any dashboard.
What "Good" Looks Like: Benchmarks by Business Size
Not all businesses overstock equally. Size, industry, and supply chain complexity all affect how much excess inventory is typical vs. concerning.
| Business Size | Avg Excess Inventory | Annual Carrying Cost | Typical Root Cause |
|---|---|---|---|
| Micro (<$1M revenue) | ~$142K | $28K - $71K | Gut-feel buying + supplier MOQs |
| Small ($1M-$5M) | ~$320K | $64K - $160K | Seasonal overbuying + poor forecasting |
| Mid-Market ($5M-$20M) | ~$560K | $112K - $280K | Spreadsheet forecasting + team silos |
| Established (>$20M) | Varies widely | Depends on SKU count + channels | Multi-location complexity + lead time hedging |
The mid-market figure ($560K average from Cin7's 2024 research) is the most cited benchmark - and it's where the problem tends to become visibly painful. At this scale, businesses have enough SKUs and purchase volume that spreadsheet-based planning breaks down, but they haven't yet invested in the tools to replace it.
How to Spot Overstock Before It Becomes a Crisis
The challenge with overstocking is that it builds slowly. You don't get an alert saying "you bought 200 too many units of SKU-047 last quarter." You just notice, months later, that the shelf is full and the sales report looks thin.
A few metrics to watch:
Inventory turnover ratio - How many times does your stock sell through in a year? Industry benchmarks vary, but a ratio under 4 for most product categories is a warning sign. Our inventory turnover guide has the full formula and how to benchmark by sector.
Days on hand - Average inventory divided by daily cost of goods sold. If products are sitting for 90+ days, ask why. Are they genuinely in the pipeline for orders, or are they sitting there on hope?
Sell-through rate - What percentage of a product received did you actually sell? A sell-through rate below 70% on a non-seasonal item suggests a buying problem.
Overstock ratio - Current stock divided by what's actually needed to cover forecasted demand plus safety stock. Anything above 1.5x is excess.
The problem is that tracking these manually, across dozens or hundreds of SKUs, is exactly the kind of work that doesn't get done when teams are busy. It requires consistent, automated visibility - not a monthly spreadsheet audit.
How much is YOUR overstock costing you?
VNDLY's stock projection charts and demand planning tools surface slow-moving SKUs automatically - before the carrying cost compounds. Free 14-day trial, no credit card.
Try VNDLY free →How VNDLY Reduces Overstock: Specific Features
Every one of the root causes above has a direct answer in VNDLY's feature set. Here's how it maps:
For inaccurate forecasting: VNDLY's demand planning module uses multiple forecast models and learns from your actual sales history. You're not guessing based on last year's average - you're working from trend-adjusted projections. Our post on preventing stockouts using demand planning walks through how this works in practice.
For poor cross-team visibility: Stock levels, in-transit POs, and sales demand are visible to purchasing, sales, and warehouse in a single system. No more duplicate orders because different teams couldn't see the same data. This is especially useful for businesses managing inventory across multiple warehouses.
For fear-driven overbuying: VNDLY's stock projection charts show your projected stock level alongside your reorder point and estimated stockout date. When you can see exactly how many days of stock you have and when replenishment arrives, you stop panic-ordering. The data replaces the anxiety.
For seasonal misjudgments: The planning dashboard gives you a clear view of seasonal demand patterns by SKU - so you can see which products spike, by how much, and for how long. That removes the guesswork from seasonal buys.
For SKU sprawl: VNDLY tracks sell-through rates and inventory age across every SKU. Slow movers stand out. That's the first step toward the kind of SKU rationalization that frees up capital from dead products and reallocates it to what's actually selling.
For small businesses with limited staff and tight margins, having these insights automatically surfaced - rather than requiring a manual audit - is where the value is clearest.
From the Founder: The Time I Couldn't See My Own Overstock
"At our peak we were receiving 75+ containers a year. I knew roughly what was in each one. What I didn't always know was how much of what we'd ordered six months earlier was still sitting in warehouse B, waiting for demand that had already shifted.We had a product - a seasonal item we'd done well with the year before. The buyer reordered confidently. It arrived in October, right on time. But demand that year was soft. By Christmas, we had most of it still on the shelves. By March, we were running promotions to clear it. By June, we were selling at cost just to free up the racking. The cost wasn't just the markdown. It was the cash we'd locked up for nine months. The space that product occupied instead of something that was actually moving. The mental energy spent managing a problem that a decent stock projection tool would have flagged before we even placed the order. That's the real cost of overstocking. It's not always obvious in the P&L. But it's always there."
Frequently Asked Questions
What is the average cost of overstocking for a small business?
According to Cin7's Q1 2024 research, the average overstock value per SMB seller is $560,000. With annual carrying costs typically running 20-30% of inventory value, that translates to roughly $112,000-$168,000 in annual waste - before markdowns or obsolescence.
What's the difference between overstock and dead stock?
Overstock is inventory that exceeds what's needed to meet near-term demand. Dead stock is a subset of overstock - items that have stopped selling entirely and are unlikely to recover without heavy discounting. Cin7's 2024 data found that about 48% of excess inventory at SMBs qualifies as dead stock.
What causes overstocking in small businesses?
The most common causes are inaccurate demand forecasting (especially when based on spreadsheets or gut feel), minimum order quantities that force bulk purchases, fear of stockouts from past experience, and poor visibility into what's already on order or in transit. Poor seasonal planning is also a significant factor.
How do you calculate if you're overstocked?
Calculate your overstock ratio: divide current stock by the quantity you actually need to cover forecasted demand plus safety stock. A ratio above 1.5 suggests excess. Also track your days on hand (current inventory / average daily COGS) - if it's consistently above 60-90 days for your product category, you're likely overstocked.
Can inventory software actually reduce overstock?
Yes - and the data backs it up. Research indicates that businesses using AI-powered demand forecasting reduce their forecast error from ±25% (spreadsheet baseline) to ±5-8%. That directly translates to smaller, more accurate purchase orders and significantly less excess inventory accumulating over time.
VNDLY's demand planning and stock projection tools surface overstock risks before they become expensive mistakes. 14-day free trial, no credit card required.
Sources:
- IHL Group: Global Inventory Distortion Research — ihlservices.com
- U.S. Census Bureau: Monthly Retail Trade Survey, December 2025 — census.gov
- Netstock SMB Inventory Report 2024/2025 — netstock.com
- Cin7 Q1 2024 SMB Inventory Report — cin7.com
- Aberdeen Group / APQC: Inventory Carrying Cost Benchmarks
- National Retail Federation: Inventory Cost Research — nrf.com