How to stop stock loss and theft in your shop: 8 habits that work

ShelfWise · Updated 1 November 2026

Most shops lose stock slowly: a few items here, a short delivery there, a sale not recorded. You often only notice when money is short at the end of the month. These habits close the gaps, with or without a POS.

1. Record every sale, every time

If a sale isn't recorded, the stock it took is invisible. Make recording the sale the only way to give change or a receipt. With a POS, stock goes down with each sale, so what's on the shelf should match what the system says.

2. Count a little, often

Counting the whole shop once a year hides problems for months. Count your 20 most-stolen or most-expensive items every week instead. Any difference shows up within days, while you still remember who was on duty.

3. Check deliveries against the order

Short deliveries are a common, quiet loss. Count what arrives against what you ordered before the supplier leaves, and record only what you received.

4. Match cash and M-Pesa every shift

At the end of each shift, the cash in the drawer and the M-Pesa received should match the sales recorded. When M-Pesa payments are matched to sales automatically, a missing sale stands out at once.

5. Write down damaged and expired stock

Broken, spoiled and expired items should be recorded as such, not just thrown away. Otherwise they look like theft, and real theft hides among them.

6. One login per person

Shared passwords mean no one is responsible. Give each staff member their own login, and let only owners or managers change prices, give discounts or cancel sales.

7. Watch the numbers that move

Look weekly at items whose stock fell faster than their sales. Those are where to watch, count and ask questions.

8. Don't over-stock

Piles of extra stock are easy to take from and hard to count. Order what you need from what's actually running low.

Common questions

How do I know if my staff are stealing?

Compare what your records say should be on the shelf with what's there, and compare cash and M-Pesa to recorded sales each shift. Repeated gaps on the same shifts tell you where to look.

How often should a shop do a stock count?

Count high-value or easily stolen items weekly, and the whole shop every month or quarter.

Start your free trial Shops & supermarkets