Gross Margin Analysis and Pricing: Finding the Profit Leaks in a UK SME
Headline gross margin hides more than it reveals. The profit is made — or lost — at the level of individual customers, products and jobs.
A business reporting a steady 40% gross margin can contain customers earning 60% and others losing money on every order. Until margin is broken down, there is no way to know which.
Get the cost of sales right first
Margin analysis is only as good as the chart of accounts. Direct costs must sit in cost of sales, not overheads — including delivery labour for service businesses. If they are mixed in with administration, every margin figure that follows is wrong.
Cut margin four ways
| Cut | What it reveals |
|---|---|
| By customer | Which accounts are subsidised by others |
| By product or service line | Where to focus sales effort and where to reprice |
| By channel | Whether marketplaces, resellers or direct sales actually pay |
| Over time | Gradual cost creep or discount drift that monthly totals hide |
The usual leaks
- Discounts agreed once and never removed.
- Supplier or wage increases not passed on.
- Unbilled scope creep and write-offs on fixed-fee work.
- Small orders with fixed handling or delivery costs.
- Rebates and credit notes booked outside cost of sales or revenue.
From analysis to repricing
- Rank customers and products by gross profit in pounds, not just percentage.
- Identify the bottom tier and calculate the price needed to reach target margin.
- Model the volume you could lose and still be better off.
- Communicate changes with notice and a clear rationale.
- Track margin monthly afterwards to confirm the change held.
The arithmetic is usually reassuring: at a 30% margin, a 5% price rise can absorb a meaningful loss of volume before gross profit falls. Model it before assuming customers will leave.
Doing this in MouCFO
MouCFO tracks gross margin from your ledger month by month, tailors the P&L to your industry — for example billable labour for professional services — and flags margin movement in the dashboard and board pack commentary.
Frequently asked questions
What is the difference between gross margin and markup?
Gross margin is gross profit divided by revenue. Markup is gross profit divided by cost. A 50% markup is only a 33% gross margin, and confusing the two is a common cause of underpricing.
What should be included in cost of sales for a service business?
Direct delivery costs — the salaries or contractor costs of the people doing billable work, plus any costs directly attributable to delivery. Including them in cost of sales rather than overheads is what makes gross margin meaningful for a services firm.
How often should prices be reviewed?
At least annually, and whenever a significant input cost changes. Many SMEs hold prices for years while wages and supplier costs rise, quietly eroding margin.