Ask ten business owners which metrics they track, and you'll get ten different answers — plus a few who say "whatever my accountant tells me."
There's nothing wrong with relying on professional advice. But there's a baseline every business owner should be able to glance at and understand — not because you need to become a CFO, but because you need to know when something needs your attention.
These are the 12 metrics we believe every SMB / SME owner should have at their fingertips. Not as a dashboard to obsess over daily — but as a set of vital signs that, taken together, tell you whether your business is healthy or whether something needs a closer look.
We've grouped them into four categories: revenue and profitability, cash flow, customers, and sales pipeline. Each one earns its place for a specific reason.
Revenue and profitability
1. Revenue (current period vs. previous)
The most fundamental metric: how much money is your business bringing in?
The key isn't the absolute number — it's the change. Revenue growing 8% month-over-month means something very different from revenue declining 8%. Track revenue as a comparison, not a snapshot.
What to watch: a single month of decline isn't necessarily a problem. Two consecutive months of decline in a non-seasonal business is a signal worth investigating.
2. Gross margin
Revenue tells you how much you sold. Gross margin tells you how much you kept after the direct costs of delivering your product or service.
A business can grow revenue while margins shrink — usually because of rising input costs, discounting, or a shift toward lower-margin products. This is the "growing broke" trap: record sales, declining profitability.
What to watch: a gross margin that's declining even 1-2% per quarter. It compounds: 1% per quarter becomes nearly 8% over two years.
3. Net cash flow
Revenue minus expenses, over a period. This is the number that tells you whether your business is fundamentally self-sustaining.
Positive net cash flow means your business is generating more than it consumes. Negative means you're burning reserves — which is fine for a limited time (during growth investment) but unsustainable long-term.
What to watch: net cash flow that's positive on annual basis but negative for 2-3 consecutive months. That signals a timing problem that could become a cash gap.
Cash flow health
4. Cash flow runway
How many months of operating expenses can you cover with your current cash balance, at your present burn rate?
This is the metric that tells you how much time you have. A 6-month runway means you can absorb a bad quarter. A 2-month runway means every decision matters.
What to watch: runway below 3 months. Below that, you're one delayed invoice away from a crisis.
5. Days sales outstanding (DSO)
The average number of days it takes your customers to pay after you send an invoice.
DSO is the gap between earning money and receiving it. A DSO of 30 when your terms are 30 is ideal. A DSO of 47 when your terms are 30 means you're financing 17 days of your customers' operations.
What to watch: DSO trending upward over 2-3 months. It usually means specific clients are paying later — and the sooner you identify which ones, the easier the conversation.
6. Overdue amount (accounts receivable)
The total value of invoices past their due date. Not how many are late — how much money is late.
This is the metric that turns "some clients pay late" (vague concern) into "£12,400 is overdue across 4 clients, and £7,800 of that is from one client who is 45 days late" (actionable information).
What to watch: overdue amounts concentrated in one or two clients. Diversified late payments are a process problem; concentrated late payments are a relationship problem.
Customer health
7. Customer lifetime value (LTV)
The total revenue you can expect from a customer over the entire time they do business with you.
LTV tells you how much a customer is worth — which tells you how much you can afford to spend acquiring one. If your average customer is worth £4,000 over their lifetime, spending £500 to acquire them is a good investment. Spending £5,000 is not.
What to watch: LTV declining. It usually means newer customers are churning faster or spending less than established ones.
8. Revenue concentration
What percentage of your revenue comes from your top 20% of customers?
Some concentration is normal — not all customers are equal. But when one or two clients account for more than 30-40% of your revenue, the loss of a single relationship becomes an existential threat.
What to watch: any single client representing more than 25% of revenue. The higher the concentration, the more urgent the need to diversify.
9. Repeat customer rate
What percentage of your customers come back and buy again?
For most businesses, acquiring a new customer costs 5-7x more than retaining an existing one. A high repeat rate means your product delivers value and your customers trust you. A declining repeat rate is an early warning sign of dissatisfaction — often before customers formally complain or churn.
What to watch: a drop of more than 5 percentage points over a quarter. It often precedes a broader retention problem.
Sales pipeline
10. Pipeline value
The total value of all open opportunities in your sales pipeline.
Pipeline value is a leading indicator — it tells you what revenue is likely to look like in the coming weeks and months. A full pipeline means future revenue is probable. A thin pipeline means future revenue is at risk.
What to watch: pipeline value that doesn't cover your target revenue for the next 2-3 months. Deals take time to close — a thin pipeline today means a revenue gap tomorrow.
11. Win rate
Of the deals you pursue, how many do you win?
Win rate tells you two things: how competitive your offering is, and how well-qualified your pipeline is. A high win rate means you're targeting the right customers with the right proposition. A declining win rate means either your market is shifting or you're pursuing the wrong deals.
What to watch: win rate changes by more than 10 percentage points. A sudden drop often means a competitor has changed the landscape.
12. Sales cycle length
The average time from first contact to closed deal, in days.
Sales cycle length affects your cash flow timing: longer cycles mean longer gaps between effort and revenue. A sales cycle that's getting longer may indicate market hesitation, a more complex buying process, or a misaligned proposition.
What to watch: cycle length increasing by more than 20%. Combined with a stable or shrinking pipeline, it signals that deals are stalling — and stalling deals often don't close.
How to use these without drowning in data
Twelve metrics sounds like a lot — and if you try to check all twelve every morning, you'll quickly stop checking any of them.
The key is layering:
- Daily: glance at revenue and cash position. Ten seconds. Is anything obviously wrong?
- Weekly: review cash flow metrics (runway, DSO, overdue) and pipeline. Are there trends developing?
- Monthly: look at the full picture — margins, customer metrics, win rate, sales cycle. Is the business fundamentally healthy?
The point isn't to memorise all twelve. It's to have them available, tracked automatically, and surfaced — so that when something changes, you know. Not because you were watching that specific metric, but because the system was watching all of them for you.
That's what a health score is: all twelve (and more), synthesised into one number that tells you whether to keep going about your day or stop and investigate. The number does the watching. You do the deciding.