How to Do a Stock Take: Step-by-Step Guide for UK Small Businesses

What is a stock take and why does it matter?

A stock take is a physical count of all the goods you hold for sale, compared against the quantities your records say you should have. The difference between what you count and what your system says is called a variance or discrepancy.

Stock takes matter for several reasons:

• Financial accuracy. Your closing stock value directly affects your profit and loss account. Incorrect stock figures mean incorrect accounts — which matters for your tax return, your bank, and any potential investors.
• Operational accuracy. If your digital records say you have 50 units but you actually have 35, you will oversell. If records say 50 but you have 70, you are carrying invisible stock that isn't generating returns.
• Loss identification. A stock take is how you discover theft, supplier under-delivery, picking errors, and damage that hasn't been written off.
• HMRC compliance. For any business that holds trading stock, HMRC requires a realistic valuation of closing stock for each accounting period. A stock take is the most defensible way to arrive at that figure.

Full count vs partial count vs cycle counting

There is more than one approach to stock counting. The right method depends on your business size, catalogue complexity, and how disruptive a shutdown would be.

For most UK small businesses, the recommended approach is: one full count per year at your financial year end, supplemented by monthly cycle counts of your highest-value or highest-velocity products throughout the year. This balances thoroughness with operational practicality.

How often should you do a stocktake?

At minimum, most UK businesses do a full stock take once a year, timed around the end of their financial year. This provides the closing stock figure for annual accounts.

However, for ecommerce businesses with multi-channel sales, the gap between counts can allow significant drift in your system records. Consider more frequent counts if:

• You sell on three or more channels and have noticed overselling
• You have high-value products where a small discrepancy has a large financial impact
• You process a high volume of returns that need to be restocked or written off
• You have staff involved in picking and packing (where errors are more likely)
• You have had theft issues in the past

A quarterly full count with weekly cycle counts of your top 20 SKUs is a robust approach for a growing UK ecommerce business.

Preparation checklist

Good preparation is the difference between a stock take that takes 4 hours and one that takes 12. Before you start counting:

• Set a cut-off date and time. No goods in, no goods out, no orders despatched from the moment the count begins until it is complete.
• Export your current system records. Print or download your current stock quantities from your inventory software, Shopify, or wherever your records live. This is your comparison document.
• Organise your storage space. Products should be in their correct locations. Mixed or messy stock is much harder to count accurately. Spend time tidying before the count.
• Separate any uncertain stock. Quarantine returns awaiting inspection, damaged goods, supplier returns, and any stock you are not sure about. Count these separately and make a decision about them after the main count.
• Prepare your counting sheets. These should list every SKU, product name, and location, with a blank column for your physical count. Print or use a tablet app.
• Brief your team. If you have staff helping, explain the process clearly. Two-person counting (one counts, one records) significantly reduces errors.
• Pause your listings. For online sellers, pause all channel listings during the count or at minimum avoid despatching any orders. If orders come in during the count, hold them until the count is complete.

The counting process — step by step

Step 1: Work through your storage systematically

Start at one end of your storage area and work methodically to the other. Do not jump around between locations — this leads to double-counts and missed areas. If you have multiple storage locations (shelves, bins, boxes, a mezzanine), count each location completely before moving to the next.

Step 2: Count and record each item

For each product, count the physical units and record the number against the SKU on your counting sheet. If you have barcode scanning equipment, scan each item as you count — this is faster and eliminates transcription errors. Work quietly and without interruptions where possible.

For loose items in boxes, count the full boxes first (noting the quantity per box), then add any loose units from open boxes. For example: 3 full boxes of 24 = 72, plus 7 loose = 79.

Step 3: Use blind counting where possible

Blind countingmeans the person doing the physical count does not see the system quantity before counting. This prevents the common human tendency to "round" your count to match the expected number. Hand the counter a sheet with SKUs and product names but without the current system quantities. They count and record, then you compare.

Step 4: Do a double-count for high-value items

For your highest-value or most business-critical SKUs, have a second person independently count the same items without seeing the first count. If both counts agree, you can be confident in the number. If they differ, count a third time.

Step 5: Complete the count before reconciling

Do not start reconciling or adjusting records in the middle of the count. Finish counting everything first, then compare. Partial reconciliation mid-count creates confusion about what has and hasn't been updated.

Dealing with discrepancies

Once the count is complete, compare your physical counts against your system records. You will likely find some discrepancies. Before writing anything off, investigate:

Common causes of stock discrepancies

• Unprocessed returns. A customer returned an item but it wasn't added back to the system. Check your returns log.
• Supplier short-shipments. You recorded receiving 100 units but only 95 arrived. Check your purchase orders and supplier delivery notes.
• Picking errors. An order was picked incorrectly — wrong item sent, or too many/few units. Check your despatched orders for the affected product.
• Damaged goods not written off. Items were damaged and set aside but not formally written off in the system.
• Items in transit. Stock that has been sold and despatched but not yet recorded as fulfilled, or stock ordered from a supplier that is inbound but not yet received.
• Theft. Both internal (staff) and external (customer shoplifting if you have a retail element).
• Data entry errors. A quantity was keyed in wrong at some point — for example, 100 entered as 1000.

Investigating before writing off

Spend time investigating significant discrepancies before you write them off. A difference of 1–2 units on a low-value item is likely noise; a difference of 20 units on an expensive item needs a proper investigation. The goal is to find the root cause and fix the process so it doesn't happen again, not just to correct the number.

Write-offs and adjustments

Once you have investigated and are satisfied the discrepancy is genuine, you make a stock adjustment:

• If your physical count is lower than your system — you write down (reduce) your recorded stock. The financial impact is an increase in cost of goods sold or a stock shrinkage expense.
• If your physical count is higher than your system — you write up (increase) your recorded stock. This is rarer but happens when supplier deliveries were under-recorded.

In your inventory software, this is typically a stock adjustment entry. In your accounting software, your accountant will advise whether to record it as stock shrinkage, cost of sales, or another appropriate category.

Stocktake best practices

• Count before you need to — not during. A year-end count done under time pressure, in a messy warehouse, with no preparation is far less accurate than a planned count done calmly.
• Keep a log of each count. Record the date, who counted, any anomalies, and the final adjustments made. This creates an audit trail that HMRC can review and that helps you spot patterns (e.g. a particular SKU consistently showing a variance).
• Lock down access during the count. No orders despatched, no goods received, no staff moving items between locations without telling the count team.
• Do not trust memory. Count everything physically. Do not skip an item because you "know" how many there are.
• Track units in all states. Count not just available stock but also quarantine stock, display units, samples, damaged goods, and items in transit. Even if they are not sellable, they are part of your stock valuation.

Barcode scanners for faster, more accurate counts

For businesses with 100+ SKUs, barcode scanning dramatically speeds up and improves the accuracy of stock counts. Instead of writing or typing quantities, you scan the product barcode and enter the quantity on a mobile device. The app records the count against the correct SKU automatically.

Options for UK small businesses:

• Bluetooth barcode scanner + tablet. A basic Bluetooth scanner costs £30–£80. Pair it with an inventory app on a tablet for a cost-effective scanning setup.
• Mobile scanning app. Many inventory platforms (including Shopify with the Stocky app) let you use your smartphone camera to scan barcodes during a count. Less efficient than a dedicated scanner but has no hardware cost.
• Dedicated handheld scanner (e.g. Zebra, Honeywell). Industrial-grade devices with integrated screens. Used by larger warehouses. Costs £200–£600+ but highly durable and fast.

For most UK ecommerce businesses, a Bluetooth scanner and tablet combination is the sweet spot of cost and usability.

Updating digital records after the count

Once you have your verified physical counts, update your inventory system:

1. Open each product in your system and set the quantity to the physically counted figure
2. For inventory management software (like Salync), there is typically a stock adjustment feature where you can enter the new quantity and a reason
3. Once updated in your system, the correct quantities are pushed to all connected channels — Shopify, eBay, Amazon, Etsy — automatically
4. Resume trading: reactivate any paused listings and start processing any held orders
5. Save a copy of your count sheet and the before/after figures for your records

The multi-channel push is particularly important. If your stock take shows you have 45 units of a product but your Shopify and eBay listings both show 60, you need both updated before you resume selling. If only one is updated, you risk overselling on the other.

Salync handles this automatically — when you update the stock count in Salync, it pushes the correct quantity to every connected channel simultaneously, eliminating the risk of a channel being missed.

Common stocktake mistakes

1. Not pausing orders during the count

If orders are still being picked and despatched while you are counting, your count is immediately outdated. Pause all despatch activity for the duration of the count, even if it means a short delay to customers.

2. Counting too quickly

A rushed count produces inaccurate numbers. It is better to count 80% of your SKUs accurately and leave 20% for tomorrow than to count everything hastily with a high error rate.

3. Trusting the system numbers too much

The point of a stock take is to verify the system, not to confirm it. If your count comes out exactly matching every single line on your system records, it is worth investigating whether the count was done properly — exact matches across hundreds of SKUs are statistically unusual.

4. Forgetting stock in unusual locations

Items in car boots, returned from trade shows, at a friend's unit, in a spare room at home — any stock that belongs to the business needs to be counted, wherever it physically is.

5. Not recording the write-offs properly

Making a stock adjustment in your inventory software without recording the same adjustment in your accounting records causes your stock valuation to diverge from your accounts. Make sure your accountant is aware of any adjustments made during the stock take.

HMRC and inventory valuation

For UK businesses, HMRC requires trading stock to be valued at the lower of cost or net realisable value (NRV) at the year end. In practice, for most small businesses selling physical goods at standard retail prices, the cost price is the right figure.

Your closing stock value is calculated as: quantity × cost price per unit. Your cost price is what you paid to acquire or produce each unit — the purchase price from your supplier, plus any direct costs to bring it to its current condition and location.

If some stock is damaged, obsolete, or unlikely to sell at full price, it should be valued at NRV — the price you can actually get for it, minus any costs to sell it. Damaged stock valued at cost price overstates your profits and leads to overpaying tax.

Your accountant or bookkeeper should review your closing stock figures as part of your year-end accounts preparation. Provide them with:

• Your stock take sheet showing physical counts per SKU
• Your cost prices (ideally from your purchase orders or supplier invoices)
• A list of any items written off and the reason
• Any items valued below cost price and why