How to raise prices without losing customers
Pricing · 12 June 2026 · 7 min read
The letter every retailer dreads
It arrives by email now, but the effect is the same: your wholesaler is "adjusting" prices from the first of the month. Across a thousand-line range, even a 4% average cost increase is real money — and every week you delay repricing, that increase comes straight out of your margin.
The instinct to hold prices "for the customers" is understandable and usually wrong. Holding every price protects nobody if it puts the shop's viability at risk. The skill is raising prices selectively and quietly, so the shop still feels fair.
Step 1: Know which lines actually got more expensive
Don't reprice by vibes. Pull the new cost list against your current shelf prices and sort by margin impact. You're looking for three groups:
- Lines where the cost rise wiped out most of the margin — these must move, this week
- Lines where the rise is small and the margin still healthy — these can wait for the next natural price point
- Lines where costs didn't move — leave them alone, and let them be the proof that you're not "putting everything up"
If you can't produce this list in under an hour, that's a systems problem before it's a pricing problem. Live cost and margin data per product is exactly the job stock software does for you.
Step 2: Pick the right new price, not just a higher one
For each line that must move, you have two honest choices: keep the same margin percentage, or keep the same cash profit per unit. Same-percentage raises the price slightly more; same-cash passes on only the cost increase. Our free price rise calculator at inv3ntory.com/tools/price-increase-calculator does both sums, VAT included.
Then round to a price point that looks intentional. £1.53 reads like a mistake; £1.55 reads like a price. And check the obvious anchors: if the multiple up the road sells the same can at a price-marked £1.49, pricing yours at £1.79 needs a reason the customer can see (chilled, single, late hours — all legitimate).
Step 3: Sequence the changes
Never reprice the whole shop in one visible sweep. Customers don't notice twenty quiet changes over three weeks; they absolutely notice a shelf-edge-label blizzard on a Monday morning. Move the urgent third first, then work through the rest in small weekly batches.
Two lines deserve special care: your known value items — milk, bread, the things customers price-check subconsciously. Hold these as close as you can afford and take the margin elsewhere. Shoppers form their whole impression of your prices from a handful of lines.
Step 4: Watch what happens — actually watch
A price rise isn't finished when the label changes. Watch units sold for the fortnight after. Most lines won't flinch — convenience demand is famously forgiving for need-it-now products. The few that do drop sharply are telling you something: there's a cheaper substitute nearby, on your own shelf or someone else's.
This is where sales velocity data earns its keep. If you can see units per day before and after the change, repricing stops being scary — it becomes a series of small, reversible experiments.
The maths of courage
One last number, because it matters. At a 25% margin, a line that takes a 10% cost increase needs roughly a 7.5% price rise to stand still. If you hold the price instead, you need to sell about 40% more units to make the same cash. Nobody's footfall goes up 40% because they kept a can 10p cheaper.
Raise the prices. Do it selectively, round it sensibly, protect the value items, and check the data afterwards. That's the whole playbook.