When NZ business owners think about preparing for a sale, they often focus on presentation: tidying up the accounts, documenting processes, reducing owner dependency. These things matter. But the single most powerful lever for increasing your sale price is one that is often overlooked: improving your margins.

The connection between margins and sale price is direct, significant, and worth understanding in detail before you start preparing your business for exit.

How Business Valuation Works

Most NZ SME businesses are valued using an EBITDA multiple — a multiple applied to your earnings before interest, tax, depreciation, and amortisation. The multiple reflects the buyer's assessment of the business's risk, growth potential, and quality.

Sale Price = Normalised EBITDA × Multiple

Normalised EBITDA is your reported EBITDA adjusted for any non-recurring items and owner-specific costs (such as an above- or below-market owner salary). The multiple typically ranges from 2× to 5× for NZ SMEs, depending on the industry, business size, and quality of earnings.

This formula has a critical implication: every dollar of improvement in your normalised EBITDA increases your sale price by the multiple. At a 3× multiple, a $50,000 improvement in annual EBITDA adds $150,000 to your sale price. At a 4× multiple, it adds $200,000.

Margin improvement is the most direct way to increase EBITDA.

The Margin-to-Sale-Price Calculation

Let us work through a concrete example.

A Canterbury trades business turns over $1.8 million per year. Current gross margin is 36%, generating $648,000 in gross profit. Overhead is $480,000, leaving normalised EBITDA of $168,000. At a 3× multiple, the business is worth approximately $504,000.

Now suppose a Business Profitability Review identifies the following improvements:

• Pricing adjustment (capturing variations, updating rates): +$45,000 gross profit
• Direct cost reduction (better procurement, reduced material waste): +$28,000 gross profit
• Overhead reduction (unused subscriptions, vehicle rationalisation, supplier renegotiations): +$32,000

Total improvement: $105,000 in additional annual EBITDA.

New normalised EBITDA: $273,000. At a 3× multiple, the business is now worth $819,000 — an increase of $315,000 on the original valuation.

The gross margin has moved from 36% to 42%. The net margin has improved from 9.3% to 15.2%. And the sale price has increased by more than 60%.

These are not unrealistic numbers. They reflect the kind of improvements that a structured profitability review consistently identifies in NZ SMEs that have not previously done this work.

Why Margins Affect the Multiple, Not Just the EBITDA

The impact of margin improvement goes beyond the EBITDA calculation. Higher margins also affect the multiple itself.

Buyers pay higher multiples for businesses with:

Pricing power. A business with strong margins demonstrates that it can charge what it is worth — that customers value the service enough to pay for it. This signals a defensible market position, which reduces buyer risk.

Cost discipline. A business with lean, well-managed costs signals that the owner knows their numbers and manages the business actively. This reduces the buyer's concern about hidden costs or structural inefficiencies emerging after the sale.

Resilience. A business with healthy margins can absorb a slow period, a lost customer, or an unexpected cost without going into loss. A business with thin margins cannot. Resilience commands a premium.

Predictability. Consistent margins over multiple years are more valuable than volatile margins, even if the average is the same. Consistency signals a stable business model and reduces uncertainty for the buyer.

A business that improves its margins from 9% to 15% net may see its multiple increase from 2.5× to 3.5× — not just because the EBITDA is higher, but because the quality of earnings is better. The combined effect of higher EBITDA and a higher multiple can be transformative.

When to Start Improving Margins

The earlier the better. Margin improvements take time to implement and time to demonstrate. A buyer will want to see at least two to three years of financial history showing the improved margins before they will pay a premium for them.

A margin improvement made in the year before a sale may not be fully reflected in the sale price, because the buyer cannot be confident it is sustainable. A margin improvement made three years before a sale, with two years of consistent results to show, is fully priced in.

This is one of the core reasons why succession planning needs to start earlier than most NZ business owners think. The value-building work — including margin improvement — needs time to compound.

The Profitability Review as a Pre-Sale Investment

A Business Profitability Review is one of the highest-return investments a business owner can make in the years before a sale. The cost of the review is typically recovered many times over in the margin improvements it identifies.

The review covers:

• Gross and net margin analysis by product or service line
• Overhead and fixed cost review
• Pricing strategy assessment and margin leakage identification
• Benchmarking against industry standards
• A prioritised set of recommendations with estimated financial impact

The output is not just a report. It is a clear picture of where your margins stand, what is causing them to be lower than they should be, and what specific changes will improve them — with an estimate of what each change is worth in terms of sale price.

The Compounding Effect of Early Action

Consider two business owners, both planning to sell in five years.

Owner A does a profitability review now, implements the recommendations over the next 18 months, and spends the remaining three and a half years demonstrating the improved margins. By the time they sell, the improvements are embedded, documented, and fully reflected in the valuation.

Owner B waits until 12 months before the sale to think about margins. They implement some changes, but there is not enough time to demonstrate sustainability. The buyer applies a discount for the uncertainty.

The difference in sale price between these two scenarios can easily be $200,000–$400,000 on a mid-sized NZ business. The difference in effort is not that large — it is mostly a matter of timing.

Getting Started

If you are planning to sell your business in the next three to seven years, now is the right time to understand your margins and identify the improvement opportunities. The earlier you start, the more of the value you capture.

A Business Profitability Review is the starting point. It gives you a clear picture of where you stand and a prioritised plan for improvement — so that when the time comes to sell, your margins are telling the story you want them to tell.

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Ridgeline Advisory is a Christchurch-based business advisory firm helping NZ business owners improve profit, reduce costs and plan succession and exit.

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