NIGEL GORDON
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How to Value Goodwill When Buying a Small Business in Australia

Nigel Gordon·
module-4valuationgoodwillbusiness-acquisitionAustralia

Goodwill, when buying a small business in Australia, is the amount you pay above the value of the identifiable tangible and intangible assets — things like equipment, stock, debtors, and any patents or trademarks. In plain terms: it's what you're paying for the business's reputation, its customer relationships, its trading name, and its ability to keep making money after the current owner walks out the door. For most small businesses in Australia — trades, cleaning, landscaping, pest control — goodwill makes up between 60% and 90% of the purchase price. That means most of what you're buying is something you can't touch, can't verify with a spreadsheet, and will evaporate overnight if you mishandle the transition.

This guide walks through how goodwill is valued, the distinction between commercial and personal goodwill that most sellers won't mention, and how to stress-test the number before you hand over your deposit.

What Is Goodwill in a Small Business Sale?

Goodwill is an intangible asset. It represents the premium a buyer pays above the net tangible asset value of a business — capturing customer loyalty, brand recognition, supplier relationships, trained staff, and the accumulated reputation that lets the business generate earnings year after year.

For a concreting business with $80K of plant and equipment and $350K purchase price, the goodwill component is $270K. That $270K is the seller's claim that the customers, processes, and reputation of the business will keep generating revenue for you — not just for them.

There are two distinct types of goodwill in Australian small business sales:

Commercial goodwill (also called business or enterprise goodwill) attaches to the business itself — the brand, the systems, the customer base, the geographic territory, the website and reviews, the contracts. It transfers with the sale.

Personal goodwill attaches to the current owner — their specific trade relationships, their reputation in the local area by name, their personal licence in industries where it's required (like electrical work or plumbing). It doesn't transfer. When the owner leaves, it leaves with them.

This distinction is the most important thing to understand before paying a dollar of goodwill — because sellers and their brokers almost never separate the two.

Why the Buyer's Perspective Is Different

Most of the content you'll find on goodwill valuation is written from the seller's perspective: how to maximise it, how to present it to buyers, how to hold out for a higher multiple. That's not helpful if you're the one writing the cheque.

From a buyer's perspective, goodwill valuation is really about one question: will this business keep earning after I own it, and how confident can I be in that?

A seller might claim $200K of goodwill based on 3x their $67K annual net profit. But if 80% of that profit comes from one client who rings the owner personally, or from the owner's personal licence, or from a relationship the owner has built over 25 years with a local builder — then the goodwill you're buying is personal, not commercial. It's worth far less to you than the price suggests.

I've watched buyers discover this late in due diligence. One deal I saw involved a painting business in western Sydney where three of the four commercial clients confirmed — in writing — that they dealt with the owner personally and would "need to see how things go" with a new owner. The business was priced at 2.8x earnings. After adjustment for the client risk, the defensible multiple was closer to 1.5x. The buyer walked, which was the right call.

How Goodwill Is Valued: The Main Methods

There's no single standard for goodwill valuation in Australian small business sales. Different advisors use different approaches, and sellers tend to pick the one that produces the highest number.

1. Capitalisation of Earnings (the most common method)

The most widely used approach for Australian small businesses. The formula is simple:

Goodwill = Normalised Owner Earnings × Industry Multiple

Or more precisely: Business Value = Normalised EBITDA × Multiple, and goodwill is the residual after subtracting net tangible assets.

If a plumbing business produces $200K in normalised EBITDA and trades at a 2.5x multiple, the business is worth $500K. If the net tangible assets are worth $120K, goodwill is $380K.

The critical word is "normalised." This is where most of the disputes live. See the article on how to normalise EBITDA when buying a business — the seller's add-backs often include items a new owner won't actually benefit from.

For a full breakdown of what multiples look like by industry, the Industry Multiples Cheat Sheet covers trades and services businesses across Australia.

2. Super Profit Method

This approach calculates goodwill as the present value of earnings above a "normal" return on net tangible assets.

The logic: if the business earns $150K per year and a fair return on its $100K of tangible assets would be $12K (12% return), the "super profit" — the premium earnings attributable to goodwill — is $138K. Capitalise that at a suitable rate and you get the goodwill value.

This method is more theoretically rigorous and you'll see it used in formal valuations or disputes. In practice, most small business deals use the capitalisation of earnings method and skip this step.

3. The "Gut Check" Against Comparable Sales

Less formal but surprisingly useful: look at what similar businesses have actually sold for, not what they were listed for. Business brokers who specialise in a specific industry (trade services, cleaning, pest control) will have sale data. Ask them for it. The ATO's small business valuation guidelines and industry-specific broker databases provide benchmarks.

Be cautious of businesses that claim they should be valued at the top of the range without strong justification. A cleaning business with high staff turnover, no contracts, and an owner who answers every call personally is not the same as a cleaning business with 40 ongoing commercial contracts and a trained team leader.

What Drives Goodwill Value Up (and Down)

These are the factors that legitimately increase what goodwill is worth — and their counterparts that reduce it:

Increases goodwill value:

  • Recurring revenue and contracted work (not one-off jobs)
  • Long customer relationships with demonstrated loyalty to the business (not the owner)
  • Trained staff who can operate without the owner
  • Systems, processes, and documented procedures
  • Strong online presence — Google reviews, SEO, repeat traffic
  • Geographic territory with limited direct competition

Reduces goodwill value (or should):

  • Owner-dependent revenue — clients who deal only with the owner personally
  • Revenue concentration — one or two clients generating the majority of income
  • Unlicensed staff in a licensed trade (the owner IS the licence)
  • No documented processes, no repeatable systems
  • Declining revenue over the last 2 years
  • Industry headwinds or significant new competitors

The Owner Dependency Scorecard (free resource) is useful for stress-testing how much of the business's goodwill is actually tied to the current owner's person rather than the business entity.

Goodwill in Asset vs Share Sales

How the deal is structured affects how goodwill is treated legally and for tax purposes. This is covered in detail in the piece on asset vs share sale when buying a business in Australia, but the headline for goodwill:

In an asset sale, the buyer acquires the business assets including goodwill. The buyer gets a cost base in the goodwill (which can be amortised over time for tax). The seller typically pays capital gains tax on the goodwill component, often with the small business CGT concessions reducing that liability significantly.

In a share sale, the buyer acquires shares in the company — goodwill isn't separately identified as an asset in the transaction. This matters for valuation because you can't get a depreciation benefit on goodwill in a share sale, and any goodwill written down in the company's accounts doesn't reset at the purchase price.

Most small business acquisitions in Australia are structured as asset sales. The tax treatment is generally better for both parties, and it allows the buyer to put their own structure (trust, company) around the assets they acquire.

How to Stress-Test Goodwill Before You Pay for It

Here's the practical question to ask: if this owner left tomorrow, how much revenue would stay?

A few concrete checks:

1. Talk to customers before settlement. During due diligence, verify customer relationships by speaking to major accounts directly. Don't just ask if they'll stay — ask who they normally deal with, whether they've ever interacted with anyone else at the business, and whether the relationship has always been with the current owner.

2. Review revenue by customer, over three years. Look for stability. If the top 5 customers have been consistent and don't vary much in spend year to year, that's commercial goodwill. If the top customers change each year or the amounts vary wildly, something is going on.

3. Test the systems. Ask the seller to document exactly what happens when a new job comes in — from enquiry to quote to booking to completion to invoice. Can any trained person follow that process? Or does the system rely on the owner making judgement calls at every step?

4. Check for contracts. Are there written contracts with commercial customers? Maintenance agreements? SLAs? Written commitments are worth more than goodwill based on "we've always worked together."

5. Verify the licence situation. In licensed trades, confirm that the business holds its own contractor licence (separate from the owner's personal licence) and that at least one employee can hold a supervisor's licence. A business without this structure has a significant portion of its goodwill at personal risk.

For a structured approach to the full valuation process, the Offer Price Calculation Framework walks through how to build your offer from normalised earnings to final price, step by step. This is Module 4 of the Playbook — see the Playbook page for the full valuation and pricing module.

A Word on What Sellers Tell You

Sellers and their brokers are incentivised to maximise goodwill — it's the component of the price with the least external verification. You'll hear things like:

  • "The goodwill is in the brand" (check: has anyone heard of the brand outside this suburb?)
  • "The customers are loyal" (to who, exactly?)
  • "The systems are all documented" (ask to see them)
  • "The staff are excellent and will stay" (have you spoken to the staff?)

None of this is necessarily dishonest — sellers genuinely believe their businesses are worth what they're asking. But belief doesn't verify. Your job is to test the claims against evidence, not accept them at face value.

The EBITDA Normalisation Checklist helps you work through what to add back, what to query, and what to push back on — so you're building your goodwill assessment on accurate earnings numbers, not the seller's presentation version.

FAQ

How to calculate goodwill when buying a business? Goodwill is typically calculated as the purchase price minus the fair value of net identifiable assets (equipment, stock, debtors less creditors). For most Australian small businesses, it's estimated using the capitalisation of earnings method: normalised EBITDA multiplied by an industry-appropriate multiple, less net tangible assets.

How do you value goodwill in a small business? Value goodwill by first normalising the business's earnings to remove owner-specific costs and one-off items, then applying an industry multiple to arrive at a total business value. Subtract the net tangible asset value — what the physical assets are worth — and the residual is goodwill. Always stress-test whether the goodwill is attached to the business or the current owner.

What are the methods for valuing goodwill? The main methods used in Australian small business sales are: (1) capitalisation of earnings — applying a multiple to normalised profit; (2) super profit method — capitalising earnings above a "normal" return on tangible assets; and (3) comparable sales — benchmarking against actual transactions in the same industry and size range.

What are common valuation mistakes when assessing goodwill? The most common buyer mistake is accepting the seller's normalised earnings without independently verifying the add-backs. The second is not distinguishing personal goodwill from commercial goodwill — paying for customer relationships that will leave with the owner. The third is using the wrong multiple for the industry and business characteristics.

For more on the valuation process, the article on how to value a small business in Australia covers the full framework. If you're working out what you can actually afford, the guide to how much money you need to buy a business in Australia is worth reading alongside this one.

If this is the kind of thinking you want more of — practical, no-nonsense analysis of buying Australian businesses — the Leveraged Worker newsletter covers deals, mistakes, and frameworks weekly. Worth a look.