Wednesday, October 28, 2026

Most small business owners already believe AI works, but barely one in ten has invested in using it properly. Here is the simple ladder for turning casual AI use into real, compounding productivity gains.

Ask most SME owners how much of their revenue comes from their single biggest customer, and you'll get a rough guess, usually followed by "but we're fine, they've been with us for years." That's precisely the sentence owners said about the customer who left.

US accounting standards (ASC 280-10-50-42) require public companies to separately disclose any customer that makes up 10% or more of revenue — not because 10% is inherently dangerous, but because regulators decided that's the threshold worth telling investors about. SME owners rarely have to disclose anything to anyone, which is exactly why customer concentration quietly becomes someone else's problem to notice — usually a bank, a buyer, or an owner's own cash flow, at the worst possible moment.

The Math Most Owners Never Actually Run

Run it once and it's uncomfortable in a way no survey needs to prove. A business with four roughly equal customers loses 25% of revenue the day one leaves. A business with one customer at 40% of revenue loses almost half overnight — not because the market turned, not because the team underperformed, but because one phone call happened. That's not pessimism. It's arithmetic every SME owner is running without realising it, every day they don't check the number.

Three Moves That Actually Reduce the Risk

  • Know the real number today. Calculate what percentage of the last twelve months' revenue your top one, three and five customers represent — not a guess, the actual figure.
  • Set a written cap for any single customer. Most advisers land somewhere between 15% and 25%, depending on how replaceable that revenue would be. Treat any new deal that would breach it as a conscious decision, not an accident.
  • If you're already over the cap, grow everyone else faster. The fix isn't firing the big customer — it's a genuine new-customer push, not just servicing the big account even better.

"I have grown my business 5x since working with Kevin. Everything Kevin told me to do was the complete opposite of what I had been doing. Working with Kevin has truly been a complete game changer."

— Richard, Chem Suppliers

Why Owners Who Know This Still Haven't Run the Number

The biggest customer is usually also the easiest revenue — the one that doesn't need chasing, the one where the relationship already exists. Deliberately spending time and money on smaller, harder customers to dilute dependence on the easy one feels like working against your own instincts. It is, which is exactly why most owners need someone outside the relationship to make the case for diversifying before the easy customer makes the decision for them.

Key Takeaways

  • Calculate your top one, three and five customers' real share of last year's revenue.
  • Set a written concentration cap, typically 15–25%, and treat breaches as a decision, not a drift.
  • Grow the rest of your customer base deliberately if you're already over the cap, rather than deepening the dependency.
  • Get an outside view — the easy customer is the hardest one to diversify away from on your own.

If you can't say your top customer's share of revenue to the nearest 5% right now, that's the first number we find together.

Friday, September 25, 2026

Holiday spending has already shifted to October — and SME owners still planning a November launch are chasing demand that's gone. Here's the 10-week runway that gets ahead of it.

Friday, September 25, 2026

Most sales teams default to the same easy offer every time, leaving your highest-margin products unsold. Here's the Full Menu Selling framework that fixes it without a new script.

Friday, September 25, 2026

Recurring meetings that never resolve aren't a communication problem — they're a decision backlog costing your business real money. Here's the 3D Decision Rule that clears it.

Friday, September 25, 2026

Calling a coach only when something breaks isn't coaching — it's crisis management with a label on it. Here's why the Proactive Coaching Cadence delivers a stronger return.

Friday, September 25, 2026

Most SME growth ceilings are self-imposed, not market-imposed — built by founder control, outdated systems, and internal structure. Here's the Ceiling Test that reveals it.

Friday, September 25, 2026

Small business AI adoption hit 74% this year, with real ROI: $4,100 saved annually on scheduling and payroll alone. But the smallest businesses, who need the time back most, adopt it least.

Tuesday, September 22, 2026

NZ business confidence just held near a multi-year high — but ANZ's own August data shows profit expectations posted their sharpest monthly fall on record. Here's the three-step Cost-Profit Scissor test to check if your margin is keeping pace with your optimism.

Tuesday, September 22, 2026

Two businesses can grow 30% the same year and end up in opposite positions. Here's the Funding Source Audit that shows which kind you're building.

Tuesday, September 22, 2026

Hired a coach, saw a spark, then stopped renewing? The problem usually isn't the coach — it's the switching. Here's why coaching compounds.

Tuesday, September 22, 2026

Eleven hours worked, exhausted by 7pm — but how much of it actually moved the business forward? Here's the two-question Impact Filter.

Tuesday, September 22, 2026

Most lost sales die in the first four minutes, not on price. Here's the four-question Discovery-First Framework that fixes it.

Tuesday, September 22, 2026

If your marketing stops the moment you stop paying for it, you're only funding half the job. Here's the audit that fixes the balance.

Tuesday, September 22, 2026

Your 40-page strategy document isn't working because nobody can recall it. Here's the one-page, four-box plan that replaces it — and actually gets run.

Monday, September 21, 2026

You're tracking the wrong competitors. The business quietly stalling your growth is solving your customer's problem a completely different way — and it's not on your spreadsheet.

Monday, September 21, 2026

The cheapest audience in your market isn't strangers — it's your competitors' unhappy customers. Here's how to build a marketing campaign that speaks directly to them.