Inventory carrying costs are the ongoing expenses that businesses incur to store, insure, and manage unsold stock in a warehouse. If you hold physical inventory, these costs eat into your margins right now, tying up cash that could fuel growth, fund new product lines, or simply keep your operations flexible.
The problem is that most businesses underestimate how much it actually costs to hold inventory. Beyond the obvious warehouse rent, you are paying for insurance, depreciation, shrinkage, and the opportunity cost of capital sitting on shelves instead of working for you. When these hidden expenses go unchecked, they can erode profitability faster than slow sales ever could.
The scale of the problem is easy to miss. Global retail loses $1.73 trillion annually due to inventory distortion, the cost of out-of-stocks and overstocks, according to IHL Group.
This guide breaks down exactly what inventory carrying costs include, how to calculate them with a step-by-step formula, why tracking them matters for your bottom line, and practical strategies you can use to bring them down. Whether you are a warehouse manager trying to optimize shelf space or a business owner looking to free up working capital, you will walk away with a clear framework to take control of your carrying costs.
Key takeaways
- Inventory carrying cost is the total ongoing expense of holding unsold stock, spanning capital costs, storage costs, service costs, and risk costs.
- Inventory carrying cost is calculated by dividing total carrying costs by average inventory value, then multiplying by 100 to get a percentage.
- Most companies aim to keep inventory carrying cost between 20% and 30% of average inventory value per year, and lower is generally better.
- Reducing inventory carrying cost frees up working capital that would otherwise sit locked in stock, cash that can fund growth or cover operations.
What are inventory carrying costs?
Inventory carrying costs, also called inventory holding costs, represent the total cost of holding unsold goods in your warehouse or storage facility. These expenses accumulate for as long as products remain in stock before being sold or used in production.
For most businesses, a carrying cost between 20% and 30% of total average inventory value per year is the range to aim for. The Institute for Supply Management notes there is no consensus benchmark for inventory carrying cost, and that most companies strive to keep it between 20 and 30 percent. That means if you are holding $500,000 in inventory, you could be spending $100,000 to $150,000 annually just to keep it on your shelves. Understanding what makes up these costs is the first step toward reducing them.
Inventory carrying costs break down into four main categories:
1. Capital costs
Capital costs represent the money tied up in the inventory itself. Every dollar invested in stock is a dollar that cannot be used for equipment upgrades, marketing, hiring, or other growth initiatives. This opportunity cost is often the single largest component of carrying costs. For a craft cold-brew roaster sitting on $200,000 worth of specialty beans and finished product, that capital is effectively frozen, unavailable for expanding into new retail accounts or investing in production capacity.
2. Storage costs
Storage costs include everything required to physically house your inventory: warehouse rent or mortgage payments, utilities, equipment maintenance, material handling, and facility upkeep. These costs scale with the amount of space your inventory occupies. When stock levels creep higher than necessary, you are paying for shelf space that is not generating revenue. For businesses operating climate-controlled storage, like a frozen foods distributor or a pharmaceutical wholesaler, these costs climb even further.
3. Service costs
Service costs cover the administrative and protective expenses that come with holding inventory. This includes insurance premiums on your stock, property taxes on inventory (required in many states), inventory management system costs, and the labor involved in tracking, counting, and managing your goods. These expenses persist regardless of whether your inventory is moving quickly or sitting idle.
4. Risk costs
Risk costs account for the potential loss of inventory value over time. This includes inventory shrinkage from theft or damage, obsolescence as products become outdated or expire, and depreciation as goods lose market value. For businesses dealing with perishable items, seasonal products, or fast-moving technology, risk costs can be substantial. A consumer electronics distributor holding last-generation tablets, for example, faces rapid depreciation the moment a new model launches.
How do you calculate inventory carrying costs?
Calculating your inventory carrying costs gives you a concrete number to work with, not a guess. Here is a step-by-step process to determine your carrying cost percentage, sometimes referred to as the holding cost formula:
- Identify and categorize your expenses: List every cost associated with holding inventory and assign each to one of the four categories: capital costs, storage costs, service costs, and risk costs. Be thorough and include insurance premiums, warehouse utilities, inventory management labor, taxes, and estimated losses from obsolescence or shrinkage.
- Sum your total carrying costs over a defined period: Add up all identified expenses for a consistent time frame, typically one year. This gives you your total annual carrying cost.
- Calculate your average inventory value: Determine the average value of inventory you held during the same period. A common approach is to add your beginning inventory value and ending inventory value, then divide by two.
- Apply the carrying cost formula: Divide your total carrying costs by your average inventory value, then multiply by 100 to express the result as a percentage.
Here is the formula:
Inventory Carrying Cost (%) = (Total Carrying Costs / Average Inventory Value) x 100
Worked example
Let’s say you run a bicycle manufacturing operation. Your average inventory value over the past year was $80,000. After categorizing your expenses, you arrive at the following breakdown:
- Capital costs: $9,000 (cost of capital tied up in stock)
- Storage costs: $2,000 (warehouse rent, utilities, equipment)
- Service costs: $6,500 (insurance, taxes, inventory management labor)
- Risk costs: $2,500 (shrinkage, obsolescence, depreciation)
Total carrying costs: $9,000 + $2,000 + $6,500 + $2,500 = $20,000
Carrying cost percentage: ($20,000 / $80,000) x 100 = 25%
How to interpret your result
- Benchmark against the target range: A carrying cost between 20% and 30% of inventory value is the range most companies aim for. If your number falls within this range, you are in line with most businesses, but there is almost always room to optimize.
- Identify optimization opportunities: If your carrying cost exceeds 30%, dig into which category is driving the overage. High capital costs may signal overstocking. High risk costs may point to obsolescence or shrinkage problems that need immediate attention.
- Use it to inform purchasing and stocking decisions: Your carrying cost percentage directly affects profitability on every SKU. Factor it into your reorder calculations, pricing strategies, and decisions about which products to stock, and which to discontinue.
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Why do carrying costs matter?
Your carrying cost percentage is an operational lever, not just an accounting figure. When you track and manage this number, you gain the ability to make smarter decisions across purchasing, pricing, and warehouse operations. To put the stakes in context, U.S. businesses held roughly $2.74 trillion in inventory as of mid-2026, according to the U.S. Census Bureau. Here is what it enables:
- Improved cash flow: By identifying excess stock and reducing it, you free up working capital that was previously locked in inventory. That freed-up cash can fund growth initiatives, cover operational expenses, or provide a buffer during seasonal slowdowns. Understanding the reasons businesses hold inventory helps you distinguish between necessary safety stock and costly overstock.
- Optimized inventory levels: Carrying cost data helps you find the balance between having enough finished goods on hand to fulfill orders and avoiding the expense of storing more than you need. This balance is at the core of effective inventory management.
- Smarter pricing and higher margins: When you know exactly what it costs to hold each product, you can price more accurately. Products with high carrying costs need higher margins to remain profitable, and products that sit too long may need to be discounted or discontinued entirely.
- Data-driven decisions: A clear carrying cost benchmark gives you a foundation for negotiating better supplier terms, adjusting reorder quantities, evaluating warehouse efficiency, and comparing operational performance across periods or locations.
How do you reduce inventory carrying costs?
Once you know your carrying cost percentage, the next step is bringing it down. Here are five proven strategies that target the root causes of high carrying costs:
1. Improve demand forecasting
Inaccurate demand forecasting is one of the fastest paths to overstocking, and overstocking is the primary driver of inflated carrying costs. When you order based on gut feel or outdated spreadsheets, you end up with too much of the wrong products and not enough of what is actually selling.
The fix is using historical sales data, seasonal patterns, and market trends to build forecasts that reflect reality. AI-driven demand forecasting from Fishbowl AI takes this further by analyzing your live sales data, vendor lead times, and inventory positions to generate demand predictions that adapt as conditions change. Instead of reacting to stockouts or scrambling to move excess product, you order what you need, when you need it.
Getting this right frees real cash. The KidWind Project, a Fishbowl customer, reduced its on-hand inventory costs from $270,000 to between $80,000 and $100,000, freeing up cash for other parts of the business.
2. Set automated reorder points
Manual reordering is slow, error-prone, and reactive. By the time someone notices stock is running low and creates a purchase order (PO), you have already lost sales or incurred rush shipping fees. Automated reorder points reduce this lag by prompting replenishment the moment inventory drops below a predefined threshold.
With Fishbowl AI, Juno drafts purchase orders (POs) that you approve before anything is saved, grounded in your live data on inventory levels and vendor lead times. Replenishment happens at exactly the right moment, no earlier (which would inflate carrying costs) and no later (which would cause stockouts). You set the rules, and Juno keeps the drafts ready for your review instead of leaving you to chase every purchase order manually.
3. Conduct regular inventory audits
You cannot reduce carrying costs if you do not know what you actually have on hand. Discrepancies between your system counts and physical inventory lead to overpurchasing, phantom stock, and missed shrinkage. Regular cycle counts, rather than disruptive annual full-counts, keep your data accurate throughout the year.
Pair cycle counting with real-time inventory tracking and barcode scanning to catch discrepancies as they happen. When your system reflects what is actually on your shelves, every downstream decision, from reordering to fulfillment, gets more accurate.
4. Negotiate better supplier terms
Your supplier relationships directly impact carrying costs. Long lead times force you to order further in advance and carry larger safety stock. Minimum order quantities may push you to buy more than you need. Both inflate your average inventory value and drive up carrying costs.
Work with your suppliers to negotiate shorter lead times, smaller but more frequent order quantities, and consignment arrangements where possible. Even modest improvements, like shaving a week off lead time or reducing minimum orders by 20%, can meaningfully reduce the amount of capital sitting in your warehouse.
5. Liquidate slow-moving and obsolete stock
Every product sitting in your warehouse past its useful selling window is pure cost with no revenue potential. Slow-moving and obsolete inventory drives up storage, insurance, and risk costs while tying up capital that could be invested elsewhere.
Take an aggressive approach to clearing stale inventory: run targeted promotions, create bundles with faster-moving products, offer bulk discounts to B2B buyers, or work with liquidation channels to recover whatever value remains. The longer you wait, the less you will recover.
Fishbowl AI helps you stay ahead of this problem by identifying slow-moving SKUs and flagging obsolescence risks before products become dead stock. Combined with demand forecasting and automated reorder points, it keeps your inventory lean and your carrying costs under control.
Take control of your carrying costs with Fishbowl
Reducing inventory carrying costs is not about guessing where to cut. It is about having the right data and the right automation to make smarter decisions every day. Fishbowl AI gives you the tools to do exactly that: AI-driven demand forecasting that aligns your purchasing with actual demand, Juno-drafted purchase orders (POs) that you approve before anything is saved, and real-time inventory visibility across every location and channel.
With a direct sync to QuickBooks and Xero, your inventory data and financial records stay aligned, so you get accurate cost of goods sold (COGS), cleaner month-end closes, and margin visibility you can trust. No spreadsheets, no guesswork, no surprises.
Ready to stop overpaying to hold inventory? Book a Demo and see how Fishbowl can help you cut carrying costs, free up cash, and run leaner operations.
Frequently asked questions about inventory carrying costs
What is a good inventory carrying cost percentage? Most companies aim for an inventory carrying cost between 20% and 30% of average inventory value per year, and lower is generally better. The Institute for Supply Management notes there is no consensus benchmark, so treat 20% to 30% as a target range rather than a hard rule. If your percentage runs higher, look at which category (capital, storage, service, or risk) is driving the overage and address that first.
How do you reduce inventory carrying costs without risking stockouts? You reduce carrying costs without risking stockouts by cutting excess, not safety stock. Improve demand forecasting so orders match real demand, set right-sized reorder points that replenish at the correct threshold, and run regular cycle counts to keep counts accurate. Negotiate shorter lead times and smaller, more frequent orders with suppliers so you carry less without leaving gaps. The goal is trimming overstock while protecting the buffer that covers demand variability.
How can a small distributor lower carrying costs on a tight budget? A small distributor can lower carrying costs by focusing on the basics first. Sharpen demand forecasting, place smaller and more frequent orders, and liquidate dead stock to recover cash. Tighten reorder points so you replenish only when needed, and review slow-moving SKUs regularly. Inventory software that syncs with QuickBooks or Xero keeps stock and financial records aligned without a big system investment, so you spend less time reconciling and more time selling.
What is the difference between carrying cost and holding cost? There is no difference. Carrying cost and holding cost are interchangeable terms for the same thing: the total ongoing expense of keeping unsold inventory in storage over time. Both cover capital costs, storage costs, service costs (like insurance and taxes), and risk costs (like shrinkage, obsolescence, and depreciation). You may see either term depending on the source, but they describe the identical set of expenses tied to holding stock.
What is the difference between carrying costs and ordering costs? Carrying costs are the expenses of holding inventory over time, including capital, storage, insurance, and risk. Ordering costs are the expenses tied to each purchase or replenishment, such as processing purchase orders, receiving, and inspection. The two move in opposite directions: ordering more frequently lowers carrying costs but raises ordering costs. Economic order quantity (EOQ) is the calculation that balances the two to find the most cost-effective order size.
Are carrying costs and inventory costs the same? No. Inventory cost is the broader figure, which includes the purchase or production price of the goods themselves. Carrying cost is only the ongoing expense of holding that inventory once it is on hand, such as storage, capital, service, and risk costs. In other words, carrying cost is one component of total inventory cost, not the whole picture. Tracking them separately helps you see how much stock is costing you to hold.
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