How to Protect Your Business From an Employee Taking Clients When They Leave

How to Protect Your Business From an Employee Taking Clients When They Leave

When a key employee resigns, one of the biggest risks is that they walk out the door with your clients, your confidential information, and in some cases your team. For small and medium-sized businesses — especially in industries built on relationships — this can be devastating.

The good news? With the right contracts, systems and early action, you can significantly reduce the risk.

Below is a practical guide from a commercial litigation lawyer on how to protect your business before, during and after an employee exit.

1. Use Proper Employment Contracts and Restraints

Your first and most powerful line of defence is a well-drafted employment contract that includes:

Post-employment restraint clauses

These can prevent a departing employee from:

  • Soliciting or accepting work from your clients
  • Poaching your staff
  • Starting or joining a competing business within a defined area
  • Using your confidential information for their own benefit

Courts will enforce these clauses if they are reasonable in time, geography and scope.

Confidentiality obligations

Even long after employment ends, an employee must not misuse client lists, pricing, strategies, processes, work templates or other business-sensitive information.

IP ownership clauses

To ensure anything created during employment — documents, systems, processes, marketing, software — remains yours.

If your contracts haven’t been updated in years or were downloaded from the internet, now is the time to review them.

2. Lock Down Access and Information

Before the employee exits (or immediately once they give notice), ensure you:

  • Revoke access to CRM, email, shared drives and internal systems
  • Redirect their email
  • Secure client lists, active matter files and internal communications
  • Confirm the return of all devices and documents

Many disputes arise simply because the business waited too long to lock things down.

3. Watch for Red Flags Before They Leave

Businesses often notice warning signs after the fact. Common red flags include:

  • Sudden changes in behaviour
  • Unusual exporting of data
  • Changes in file access patterns
  • Shifts in client communication
  • A noticeable drop in performance

If concerns arise, seek legal advice early — not after the damage is done.

4. Take Immediate Action If Client Poaching Starts

If a departing employee is attempting to take clients, the steps you take in the first few days matter. You may be able to:

  • Send a solicitor’s letter demanding they stop
  • Enforce post-employment restraints
  • Seek undertakings
  • Apply for urgent injunctions (if serious)
  • Notify clients of the situation where appropriate

Taking early, firm action often stops the behaviour quickly — and signals to others that breaches won’t be tolerated.

5. Document Everything

Keep clear records of:

  • When the employee resigned
  • Their access to systems
  • Any suspicious behaviour
  • Client communications
  • Evidence of poaching attempts

These records are critical if the matter escalates to litigation.

6. Get Your Business ‘Poach-Proof’ Going Forward

The best long-term protection is a combination of strong contracts and strong culture, including:

  • Up-to-date employment agreements
  • Clear policies around confidential information
  • Ongoing HR processes
  • A CRM that tracks client contact
  • Consistent client ownership across the business

These steps make it far harder for any single employee to walk out with your relationships or revenue.

Need Help Protecting Your Business?
  • We assist employers across Australia with:
  • Drafting and enforcing restraint clauses
  • Acting urgently when staff take clients
  • Advising on confidentiality breaches
  • Preparing enforceable employment contracts
  • Running injunctions where necessary

If you’re concerned an employee may take clients — or you want to protect your business now — contact Twomey Dispute Lawyers for clear, commercial advice.

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Top-tier advice from specialist litigation lawyers on the Gold Coast, Brisbane, Melbourne and Northern Rivers for disputes and commercial litigation Australia wide.

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