Stock management
Stock management helps you order, track and value stock so you keep the right amount on hand and protect your cash.
Published Wednesday 30 September 2026
Table of contents
Key takeaways
- Stock management means ordering, storing, tracking and controlling the goods you sell so you hold the right amount without tying up cash
- Simple formulas for reorder points, economic order quantity and stock turnover help you decide when to order and how much
- In Ireland, FRS 102 values stock at the lower of cost and expected selling price less costs to complete and sell, and LIFO isn’t allowed
- Stock management software gives you live stock levels and links your stock figures to your accounts, cutting down on manual updates
What is stock management?
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Stock management is how you order, store, track and control the goods your business buys, makes and sells. Stock control is the day-to-day side of it: counting what’s on the shelf and deciding when to reorder.
Picture a café that runs out of milk at 10 am on a busy Saturday. Good stock management prevents that moment by showing you what’s coming in and what’s going out. With that picture, you can buy with confidence and cut waste.
Why stock management matters for small businesses
When you’re running a small business, every euro counts. Stock is cash in another form, so getting the balance right protects your profit from two directions.
Overstocking carries hidden costs. You pay for storage and insurance, and goods can expire or go out of fashion. Cash sitting on your shelves can’t pay suppliers or wages either. That pressure on your working capital builds quietly until a big bill lands.
Understocking hurts in a different way. You lose sales when customers find empty shelves, and some may shop elsewhere next time. If you then over-order to compensate and discount the surplus to clear it, each price cut eats into your gross margin.
Accurate stock figures also make your financial reporting more reliable. Your balance sheet shows what you really hold, and your cash flow is easier to plan around.
Types of stock
Stock covers more than the products on your shelves. Invest Northern Ireland’s business advice service, nibusinessinfo.co.uk, groups it into four main types.
- Raw materials and components you use in production, such as flour and eggs for a bakery
- Work in progress (WIP), which is partly finished goods still moving through production
- Finished goods that are ready for customers to buy
- Consumables your business uses up without selling, such as fuel, packaging and stationery
Each type needs its own tracking. Running short on raw materials can stop production, while finished goods are where most of your cash tends to sit.
Stock management methods
The right method depends on what you sell, how long it lasts and how predictable your demand is. Many small businesses combine two or more methods across different product lines.
Just-in-time (JIT)
Just-in-time means ordering stock only when you need it for production or sale. It keeps storage costs and waste low. It works best with dependable suppliers and accurate demand forecasts, because a late delivery can leave you with empty shelves.
First in, first out (FIFO)
First in, first out (FIFO) means you sell or use your oldest stock first. It’s essential for perishable goods like food and cosmetics, and it stops non-perishable items gathering dust. Its opposite, last in, first out (LIFO), isn’t permitted under Financial Reporting Standard 102 (FRS 102). Many Irish companies report under this standard.
ABC analysis
ABC analysis sorts your stock into three groups by value. “A” items are your highest-value lines, “B” items sit in the middle, and “C” items are low-value lines you hold in large quantities. Many businesses find a small share of items drives most of the value, so this method shows you where to focus your time.
Safety stock
Safety stock is a buffer of extra units that covers sudden spikes in demand or supplier delays. The right buffer balances the cost of holding more stock against the risk of running out. It’s especially useful when your supplier lead times vary.
Economic order quantity (EOQ)
Economic order quantity (EOQ) tells you the order size that keeps your combined ordering and holding costs as low as possible. It suits products with steady, predictable demand. You’ll find the formula and a worked example in the next section.
Minimum stock level
A minimum stock level is the lowest quantity of a product you’re happy to hold before you reorder. When stock drops below that line, you place a set order. It’s a simple approach that suits businesses with a small, stable product range.
Periodic vs perpetual stock systems
A periodic system relies on physical counts at set intervals, such as quarterly or annually, so your records only match reality right after each count. A perpetual system updates your records every time you make a sale or take a delivery, so your balances stay current. Perpetual systems usually run on software.
How to work out the right stock levels
Three simple formulas answer the questions you’ll ask most: when to reorder, how much to order and how quickly your stock sells. Each one uses figures you already have in your sales and purchase records.
Reorder point
Your reorder point is the stock level that tells you to place a new order. According to AccountingTools, you work it out like this:
Reorder point = (average daily usage × lead time in days) + safety stock
Say you sell 20 units a day, your supplier takes 5 days to deliver and you keep 30 units of safety stock. Your reorder point is (20 × 5) + 30 = 130 units, so you reorder when stock falls to 130.
Economic order quantity formula
The EOQ formula finds the order size that balances what you pay to place orders against what you pay to hold stock. The Strategic CFO sets it out as:
EOQ = √(2DS ÷ H)
Here, D is annual demand in units and S is the cost of placing one order. H is the annual cost of holding one unit.
Say you sell 2,000 units a year, each order costs €40 and holding one unit costs €4 a year. The sum is √(2 × 2,000 × €40 ÷ €4). That’s √40,000, which gives an ideal order of 200 units.
Stock turnover ratio
Your stock turnover ratio shows how many times you sell and replace your stock over a year. AccountingTools gives the formula as your cost of goods sold divided by your average stock.
Stock turnover ratio = cost of goods sold ÷ average stock
If your cost of goods sold is €120,000 and your average stock is €30,000, the calculation is €120,000 ÷ €30,000 = 4. A low ratio can signal that you’re over-buying or that demand for some lines is weak.
How to set up a stock management system
You can set up a working system in a few focused steps, even if you’re starting from scratch. For more detail on tools and processes, see this guide to building an inventory management system.
1. Audit your current stock
Start with a full physical count of every product, raw material and consumable you hold. Record the quantity and location of each item, noting any damage. This baseline is what every later step builds on.
2. Organise and categorise your products
Group your stock in a way that suits your business, such as by product type or how fast it sells. Give each item a unique stock keeping unit (SKU) code. Consistent names and codes make tracking and reporting much easier.
3. Choose your stock management method
Pick the method that fits your products and demand. A café might use FIFO to keep ingredients fresh, while a shop with thousands of product lines might favour ABC analysis. You can mix methods for different categories.
4. Set reorder points and quantities
Decide the stock level that triggers a reorder for each product and how much you’ll order each time. Factor in supplier lead times, seasonal demand and your safety stock. Strong supplier relationships help here, because trusted suppliers are often open to shorter lead times and more flexible order sizes.
5. Check deliveries when they arrive
Check every delivery against the delivery docket or receipt before you sign for it. Look for damage and shortages, then store goods correctly straight away. For perishables, move older stock to the front so FIFO happens naturally.
6. Pick the right software
Spreadsheets are a fine starting point, but they get harder to keep accurate as your range grows. Look for stock management software that connects to your accounts, so stock movements flow straight into your financial records. Cloud-based tools let you check stock levels from anywhere.
7. Train your team and set clear processes
Your system works best when everyone uses it the same way. Show your team how to record stock movements and flag discrepancies. Write your processes down so they stay consistent as your team changes.
8. Review and adjust regularly
Compare your actual stock with your records on a regular schedule, such as monthly or quarterly. Adjust reorder points as demand shifts, and retire lines that no longer sell. Small, regular tweaks keep your system matched to how your business runs today.
How to value stock in Ireland
The value you put on your stock at year-end feeds straight into your balance sheet and your profit. If your company reports under FRS 102, Chartered Accountants Ireland sets out how the rules apply to you.
Under FRS 102, you value stock at the lower of two figures. One is what it cost you; the other is its expected selling price, less the costs to finish and sell it. You can work out cost using FIFO or the weighted average cost method, but LIFO isn’t permitted.
At each reporting date, you also check whether any stock is impaired. If an item is now worth less than its carrying value, you write it down and the loss goes straight into your profit and loss.
Revenue requires you to keep your business records, including the records behind your stock figures, for six years. Your accountant or bookkeeper can confirm the right valuation method for your business and how it feeds into your tax return.
Stock management software
Spreadsheets suit a handful of products, but manual entry makes errors more likely as you add lines and sales channels. Software records each sale and delivery as it happens, so everyone works from the same live numbers.
Xero’s stock control tracks up to 4,000 finished items. After a stocktake, or when goods are damaged, you can adjust the quantity on hand, the average cost or the total value of an item.
Xero also connects with more than 1,000 apps. You can add specialist inventory apps from the Xero App Store, and their stock data flows into your accounts.
Common stock management mistakes to avoid
Small habits can quietly throw your stock figures off. Watch out for these common slips.
- Skipping regular stock counts: theft, damage, miscounts and data entry errors build up unnoticed when you rely on your records alone.
- Overstocking just in case: extra stock feels safe, but it ties up cash and can expire before you sell it.
- Ignoring slow-moving stock: review your range regularly and discount, bundle or drop lines that sit on the shelf for months.
- Running disconnected systems: keeping stock data apart from your accounts leads to errors and delays.
- Skipping demand forecasting: use past sales and a cash flow forecast to plan orders and buy ahead of busy periods with cash in hand.
- Leaving your team untrained: consistent processes keep your data accurate, so show everyone how to handle stock the same way.
Simplify your stock management with Xero
Good stock management comes down to knowing what you hold and valuing it correctly at year-end. Get those right and you’ll protect your cash and your margin.
Xero gives you live stock levels linked to your sales, purchases, bank feeds and reports. You spend less time on admin and more time running your business. Try Xero today and get one month free to see how much simpler your stock can be.
FAQs on stock management
Here are quick answers to common questions about stock management.
What’s the difference between stock and inventory?
In Ireland, the terms are often used interchangeably. “Stock” is the everyday word, while accounting standards such as FRS 102 use “inventories”.
How often should you count your stock?
Many businesses do a full stocktake at their financial year-end so the stock figure in their accounts is accurate. In between, regular spot checks on high-value or fast-moving items keep your records reliable without a full count each time.
Can you manage stock without software?
Yes, a spreadsheet and regular physical counts can work for a small product range. Moving to software once you add more lines or sales channels saves you time on updates and reconciliations.
What is dead stock?
Dead stock is stock that hasn’t sold for a long time and is unlikely to sell at its normal price. Clearing it through discounts or bundles frees up cash and storage space, and your accountant can advise whether to write it down in your accounts.
How do you manage stock for an online and physical store?
Use one central stock system that syncs across all your sales channels. A sale online then updates the count for your shop straight away, which helps you avoid selling stock you don’t have.
Related terms
Learn more about stock management
Disclaimer
This glossary is for small business owners. The definitions are written with their requirements in mind. More detailed definitions can be found in accounting textbooks or from an accounting professional. Xero does not provide accounting, tax, business or legal advice.