Non-Compete Clauses in Australian Business Sales: What's Actually Enforceable

Every Australian business sale involves a restraint of trade clause—the buyer's protection against you starting a competing business the day after settlement. But Australian courts treat these clauses skeptically, and regularly strike down restraints that go too far.

If you're selling, you need to understand what's enforceable, what buyers will demand, and where you have room to negotiate. A restraint that's too broad protects nobody—it gets struck down in court, leaving the buyer unprotected and you facing legal costs defending an unenforceable clause.

Why Australian Restraint Law Is Different

Unlike the US or UK, Australian courts start from the presumption that restraint of trade clauses are void unless the party seeking to enforce them can prove they're reasonable. The onus is on the buyer to justify every dimension—geographic scope, duration, activities restricted.

The leading case is Lindner v Murdock's Garage (1950), which established that restraints must be:

• No broader than necessary to protect the buyer's legitimate interests
• Reasonable as between the parties (not just reasonable to the buyer)
• Not contrary to public interest (courts won't enforce restraints that unreasonably prevent someone earning a living)

Courts will "blue pencil" restraints—strike out overly broad parts—but only if what remains makes sense. If the entire clause is unreasonable, the whole thing fails.

What Buyers Actually Need to Protect

Buyers have legitimate interests worth protecting when they acquire a business:

• Customer relationships—preventing you from immediately soliciting clients you introduced them to
• Goodwill—the reputation and market position they paid for
• Confidential information—trade secrets, pricing, supplier relationships, processes
• Key employees—preventing you from poaching the team they're acquiring

What buyers can't legitimately protect: your general ability to work in your industry, your professional skills, or market competition generally. Courts won't enforce restraints designed purely to eliminate competition.

The Three Dimensions: Activities, Geography, Duration

Every restraint has three parameters. Each must be justified independently:

1. Activities Restricted

Broad restraints like "any business similar to or competitive with the business sold" often fail. Courts prefer specificity:

• ✅ Specific: "providing accounting services to clients of the business as at completion"
• ❌ Too broad: "providing any professional services"

The more specific the restriction, the more likely it survives. Define "competing business" precisely—by service type, customer segment, delivery method.

2. Geographic Scope

Must match where the business actually operated and where goodwill exists:

• ✅ Reasonable: Melbourne metro for a business serving Melbourne clients
• ❌ Excessive: All of Victoria for a business with 90% of customers in one suburb

National restraints are defensible for genuinely national businesses, but you need evidence—client spread, marketing reach, actual operations. "We might expand nationally" isn't enough.

3. Duration

How long is reasonable depends on how long customer relationships and goodwill last:

Courts rarely enforce restraints beyond five years for SME sales. Ten-year restraints almost never survive—the goodwill the buyer paid for has long since been replaced by their own efforts.

Standard Clauses Buyers Request

A typical restraint package in an Australian business sale includes:

1. Non-Compete (Core Restraint)

"The Seller must not, for [X years] within [geography], carry on or be engaged in any business that competes with the Business, including [specific activities]."

This is the main restraint. Negotiate all three dimensions—don't accept boilerplate.

2. Non-Solicitation (Customers)

"The Seller must not solicit, canvass or approach any customer of the Business with whom the Seller had material dealings in the 12 months before Completion."

Often more defensible than a full non-compete. Targets the legitimate concern (you stealing customers) without preventing you working in the industry.

3. Non-Solicitation (Employees)

"The Seller must not for [X years] induce any employee of the Business to leave their employment or offer employment to any such employee."

Usually 12-24 months. Courts will enforce this to protect the buyer's assembled team, but won't stop employees contacting you.

4. Confidentiality (Indefinite)

"The Seller must not disclose or use any Confidential Information relating to the Business."

Not technically a restraint of trade—protects trade secrets, not competition. Usually survives because it's unlimited in time and geography, but narrow in scope (only confidential info, not general industry knowledge).

5. Cascading / Severability Clauses

Smart sale agreements include multiple restraint options of decreasing scope:

• Primary restraint: 5 years, national, all competing activities
• Fallback 1: 3 years, state-wide, direct competition only
• Fallback 2: 2 years, metro area, customer non-solicitation
• Fallback 3: 1 year, customer non-solicitation only

If the primary restraint is struck down, the narrower restraints survive. Courts will generally enforce this structure—it shows both parties intended some protection, and allows the court to pick the maximum reasonable restraint.

What's Negotiable (And What Isn't)

As a seller, you have more leverage than you think—but only if you know where the lines are.

Hard to Negotiate (Buyers Won't Move Much)

• Customer non-solicitation: Buyers will always demand this. It's narrow, defensible, and core to protecting what they paid for.
• Confidentiality: Non-negotiable. You shouldn't want to disclose trade secrets anyway.
• Employee non-solicitation (12-24 months): Standard protection buyers need.

Negotiable (You Can Push Back)

• Duration beyond 3 years: Push back on anything beyond 3 years unless it's genuinely justified. Make them prove why 5 years is necessary.
• Geographic scope: Insist on accuracy. If 85% of your customers are in one region, the restraint should match.
• Definition of "competing": Narrow the activities. If you sold an accounting practice specializing in SMSF, "any accounting services" is too broad—limit to SMSF.
• Carve-outs for specific activities: If you're keeping another business or role, explicitly carve it out.

Practical Scenarios: What Works, What Doesn't

Scenario 1: Professional Services Firm (Melbourne)

Business: Accounting practice, 200 clients, 90% in Melbourne metro, some regional VIC clients.
Buyer's opening position: 5 years, all of Victoria, "any accounting or financial services".
Likely enforceable: 3 years, Melbourne metro + specific regional towns where clients are based, "providing accounting services to clients of the Business as at Completion".
Why: Duration matches client relationship lifecycle, geography matches actual footprint, activity restriction targets customer relationships not general skills.

Scenario 2: E-Commerce Business (National)

Business: Online retailer selling outdoor gear, customers nationwide, fulfillment from Sydney.
Buyer's opening position: 5 years, Australia-wide, "any retail business".
Likely enforceable: 3 years, Australia-wide, "online retail of outdoor and camping equipment".
Why: National footprint justifies national restraint, but activity must be specific. "Any retail business" would prevent the seller opening a clothing store—unrelated to legitimate buyer interests.

Scenario 3: Suburban Cafe

Business: Café in Bondi, trade area ~2km radius.
Buyer's opening position: 3 years, 10km radius, "any food and beverage business".
Likely enforceable: 2 years, 2km radius, "operating a café or similar eat-in food business".
Why: Goodwill is hyper-local. 10km includes different suburbs with no overlap. Restraining "any F&B" stops the seller opening a restaurant in Surry Hills—no legitimate connection.

Enforcement: What Happens If You Breach

If you breach an enforceable restraint, buyers have remedies:

• Interlocutory injunction: Court orders you to stop immediately while the case proceeds. Granted if the buyer shows breach is likely and damages won't compensate them.
• Damages: The buyer's lost profits or diminished value. Hard to quantify, but if they can show customers you took or goodwill you damaged, damages follow.
• Account of profits: If you've made money from the breach, courts can order you to hand over those profits.

The buyer must prove breach and prove the restraint is enforceable. If the restraint is unreasonable, your breach is irrelevant—the clause is void.

Litigation Cost Reality

Even if a restraint is questionable, defending a breach claim is expensive. Interlocutory injunctions move fast—urgent hearings, limited evidence. You could spend $30,000-$60,000 defending even if you win.

Buyers know this. The threat of an injunction (even if the restraint might fail on the merits) is often enough to deter borderline breaches. Factor litigation risk into any decisions about post-sale activities.

Strategies to Minimize Restraint Impact

If you know you'll want to stay active in your industry post-sale:

1. Negotiate Hard Up Front

Restraints are negotiable. Push for the narrowest scope defensible by the buyer's legitimate interests. Don't accept boilerplate "5 years, nationwide, any competing business" unless it's genuinely justified.

2. Get Specific Carve-Outs

If you're retaining other assets or roles, carve them out explicitly:

• "This restraint does not prevent the Seller from [specific carved-out activity]."
• Example: Selling one accounting practice but keeping another—carve out the retained practice's scope.

3. Use Cascading Restraints

Insist on severability with multiple fallback positions. If the primary restraint fails, you want the narrowest possible alternative enforced, not a court-determined blue pencil.

4. Consider a Partial Sale or Earn-Out

If staying in the business is essential, structure a deal where you retain a minority stake or stay involved through an earn-out. Hard to enforce a non-compete against someone who's still partially an owner or actively working in the business.

5. Plan Your Post-Sale Activities in Advance

Before signing, map out what you want to do next. If there's a conflict, surface it during negotiation—don't discover post-settlement that the restraint blocks your plans.

Key Takeaways

• Australian courts presume restraints are void unless proven reasonable—the onus is on the buyer to justify every dimension.
• Restraints must be no broader than necessary to protect legitimate interests: customer relationships, goodwill, confidential information.
• All three dimensions (activity, geography, duration) must be independently justified. If any is excessive, the whole clause may fail.
• Standard defensible restraints: 2-3 years for most SME sales, geography matching actual footprint, activities narrowly defined.
• Customer non-solicitation is almost always enforceable and less restrictive than full non-compete—offer this as an alternative if the buyer's demands are excessive.
• Cascading/severability clauses protect both parties—if the primary restraint is struck down, a narrower fallback survives.
• Negotiate restraints early and specifically. Don't accept boilerplate. Make the buyer justify why 5 years is necessary when 3 is standard.
• Litigation is expensive even if you win. A questionable restraint still creates settlement pressure. Better to negotiate a reasonable clause than fight a bad one later.

Restraint clauses are about balance—protecting the buyer without unreasonably restricting your future. Get independent legal advice, understand what's genuinely enforceable in your situation, and negotiate for restraints that serve both parties' interests without going beyond what Australian courts will uphold.